2017-01-09 (5) - datafile.chinhphu.vndatafile.chinhphu.vn/file-remote-v2/DownloadServlet?filePath=vbpq/...hQCva Cong ngh~ thc1rndjnh va trinh duy~t, ... Ki~udi~uchekh6adichpha8muc

BQ THONG TIN vA TRUYEN THONG

86:30 /2016/TT-BTTTT

CONGHOAxAHOICHirNGHiA VIETNAM. . .DQel~p - T\f do - H~nh phiic

Ha NQi, ngay Of thimg "bam 2016

/ rnONGTUBan h~lDh"Quy ehu~n kY thu~t quBe gia v~ thi~t bi tr~m gBe

tONG THONG TIN tJl(:N ru CHINH PHL, thong tin di oQngGSM" .A' G" s' .. IlDEN N;Y. :AW ji :C~cULugt Titu chwin va Quy chutin kj! thugt ngi1y29 thang 6 nam2006,

Can cu Luq,t Viin thong ngay 23 thimg 11 nam 2009;

Can cu Nghj ajnh s6 127/2007/ND-CP ngay 01 thimg 8 nam 2007 cuaChinh phu' quy ajnh chi tiit va huang ddn thi hanh mQt s6 ai~u cua Luq.t Tieuchudn va Quy chudn kY thu(#;

Can cu Nghj ajnh s6 132/2013/ND-CP ngay 16 thimg 10 nam 2013 cuaChinh phu quy ajnh chuc nang, nhi?m v¥, quy~n h(;mva cO'cdu t6 chuc cua B9Thong tin va Truy~n thong;

Theo a~ nghj cua V¥ truirng V¥ Khoa hQCva Cong ngh?,

B9 truirng B9 Thong tin va Truy~n thong ban hanh Thong tu quy ajnh Quychudn kY thuq.tqu6c gia v~ thiit bj trgm g6c thong tin di a9ng GSM

Di~u 1. Ban hanh kern theo Thong tIT mly Quy chuk k:Y thu~t qu6c gia vSthiSt bi trl;UIlg6c thong tin di dQng GSM (QCVN 41 :2016/BTTTT).

Di~u 2. Thong tIT nay co hi~u It,rcthi hanh kS ill ngay 01 thang 5 nam 2017.Quy chufuI k:Y thu~t qu6c gia vS thiSt bi tr~ g6c thong tin di dQng GSM, Ky hi~uQCVN 41:2011/BTTTT quy diM t~i Khoan 5 DiSu 1 Thong tIT s6 29/2011/TT-BTTTT ngay 26 thang 10 narn 2011 cua BQ wOng BQ thong tin va TruySn thongban hanh Quy chuk k:Y thu~t qu6c gia vS vi@nthong hSt hi~u IlJc phap lu~t kS illngay Thong tIT nay co hi~u IlJc.

:Di~u 3. Ch3.nh Van phong, Vv wemg Vv Khoa hQC va Cong ngh~, Thutruemg cac don vi thuQc BQ Thong tin va TruySn thong, Giam d6c S6 Thong tinva TruySn thong cac tinh, thanh ph6 tf\Ic thuQc Trung uang va cac t6 chilc,' canhan co lien quan chiu trach nhi~rn thi hanh Thong tIT nay.!. MNoinh{Zn: e::rA B~ , UONG- Cac BQ, cO'quan ngang BQ, ca quan thuQc Chinh phil; /I,,", ' 0J:\- UBND ya Sa TTTT cac tinh, th8nh ph6 livc thuQc TW; V';, '1..~ ',I \'\\'\

- Cvc Kiem tra van ban QPPL (BQTu pMp); ( if.(a~i11-~' " .., ~

- Cong bao, C6ng TTDT Chinh pM; \'c: \ '~~ .I~,' -I

- BQTTTT: Bi)wang va cac Thli wang; \"S.~\ '~~ u~ ~' .Cac ca quan, dan vi thuQc BQ; ~{ ~)~.:- -" . ~ i.'C6ngthong tin di~n ill BQ; ',:...~~- Lau: VT, KHCN.

Truong Minh Tu~n

----~-------------------------------,

CONG HOA xA HOI CHU NGHTAVIET NAM

QCVN 41:2016/BTTTT

QUY CHuAN KY THU~T QUaC GIAVE THIET BI TR.t?tMGaC THONG TIN DI DQNG GSM

National technical regulation on GSM base stations

HA NQI - 2016

MVC Ll)C

1. QUY f)!NH CHUNG 5

1..1. Ph<;imvi di~u chInh 5

1.2. f)6i tUQ'ng ap dl,lng 51 T"'- '- -;: 5.3. al liE;:)uvlE;:)ndan .

1.4. Giai thich tlY ngO' 7

1.5. ChO' vi~t b'3t 10

2. QUY f)!NH KY THUAT ; 13

2.1. f)ieu ki$n moi trucYng 13

2.2. Cae yeu c~u ky thu~t. : 132.2.1. Cong su~t phat trung blnh cua song mang RF 13

2.2.2. Gong su~t kenh Ian c~n 14

2.2.3. Phat XC?gia tlY d~u n6i ang ten cua may phat.. 17

2.2.4. Suy hao xuyen di~u ch~ 192.2.5. Suy hao xuyen di~u ch~ ben trong thi~t bj tr<;img6c 20

2.2.6. T<;ipam bang rQng va suy hao xuyen dieu ch~ ben trong thi~t bi tr<;img6ckhi hoC?tdQng & ch~ dQda song mang 20

2.2.7. MCrcnhieu chu~n 23

2.2.8. f)$,c t1nh ch$,n 28

2.2.9. Gac d$,c t1nh xuyen dieu ch~ 30

2.2.10. Tri$t dieu ch~ bien dQ (AM) 30

2.2.11. Phat X<;igia tlY d~u n6i ang ten cua may thu ~ 30

2.2.12. Phat X<;ig;a bCrcX<;i 31

3. PHUONG PHAp f)0 31

3.1. Moi truang do ki~m 31

3.2. Giai thlch cac k~t qua do 31

3.3. PhuO'ng phap do 33

3.3.1. Gong su~t phattrung binh cua song mang RF 33

3.3.2. Cong suM kenh IEInc~n 34

3.3.3. Phat XC?gia tll' d~u n6i ang ten clla may phat.. 36

3.3.4. Suy hao xuyen dieu ch~ 40

3.3.5. Suy hao xuyen dieu ch~ ben trong thi~t bi trC?mg6c .42

3.3.6. T<;ipam bang rQng va suy hao xuyen dieu ch~ ben trong thi~t bi trC?mgockhi hoC?tde)ng (y ch~ de)da song mang , .43

2:

- -------- ------------

QCVN 41:2016/BTTTT

3.3.7. Muc nhieu chuan 46

3.3.8. f)~c tinh ch~n : 543.3.9. Cac d~c tinh xuyen di~u ch~ ; 60

3.3.10.Tri$t di~u ch~ bien de)(AM) : 613.3.11. Phat X9 gia tCfdc1un5i ang ten clla may thu 63

3.3.12. Phat x$ gia bUGX9 64

4. QUY B!NH VE QUAN LY ; 66

5. TRAcH NHII;M CUA TO CHUC, cA NHAN 66

6. TO CHUC THl)'C HII;N 67

PHl) Ll)C A (Quy dinh) Cc1uhinh do ki~m 68

PHl) Ll)C B (Quy dinh) CaGdi~u ki$n do ki~m chung va khai baD 71PHl) Ll)C C (Quy dinh) M6i trU'ang do ki~m 80

THU' Ml)C TAl L1I;UTHAM KHAo 82

QCVN 41 :2016/BTTTT

L<Yin6id~u

QCVN 41 :2016/BTfTT thay th~ QCVN 41 :2011/BTTIT.

Cac quy dinh ky thu~t va phU'.O'ng phap do eua QCVN41:2016/BTITI phu hQ'pv6'i tieu ehuc1nETSI EN 301 502 v12.1.1(2015-03) eua Vi~n Tieu ehuc1nVien thong ehau Au (ETSI).

QCVN 41:2016/BTfTT do Cl,jC Vien thong bien so,?n, Vl,j KhoahQC va Cong ngh~ thc1rn djnh va trinh duy~t, BQ Thong tin vaTruy~n thong ban hanh kern theo Thong tU' s6 ..50 /2016/TT-BTTITngayOf thang.42narn 2016.

4

QUY CHuAN KY THU~ T QUOC GIAVE THIET B! TR~M GOC THONG TIN 01DQNG GSM

National technical regulation on GSM base stations

1. QUY D!NH CHUNG

1.1. Ph~m vi di~u ehinh

. Quy chu~n nay quy dinh cac yeu cau ky thu~t d6i v6'i cac thiet bi tr<;tmg6c thong tindi dQng GSM hO(,ltdQng tren bang tan quy dinh t(,li Bang 1.

Bang 1 - Bang t~n ho~t d(>ng ella thi~t bj tr~m g6e thong tin di d(mg GSM

Ky hi~u bang ~n HU'<Yngtruy~n Bang t~n ho~t d(>n9

P-GSM 900 HU'ang phat 935 MHz - 960 MHz

HU'ang thu 890 MHz - 915 MHz

E-GSM 900 .. HU'6'ng phat 925 MHz - 960 MHz,. "'

HU'ang thu 880 MHz - 915 MHz

DeS 1 800 HU'ang phat 1 805 MHz - 1 880 MHz

HU'ang thu 1 710 MHz - 1 785 MHz

1.2. D6i tU'q'rig ap dl;lngQuy chu~n nay ap dl:mg d6i vai cac t6 chLPc,ca nhan Vi~t Nam va nU'ac ngoai cohO(,ltdQng san xU<1t,kinh doanh thiet bi tr(;tm goc thong tin di dQng GSM d~ Slr dl:mgtren lanh th6 Vi$t Nam.

1.3. Tai li~u vi~n dan

ETSI TS 151 021 (V12.2.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Base Station System (BSS) equipment specification; Radio aspects(3GPP TS 51.021 version 12.2.0 Release 12)".

ETSI TS 145 002 (V12.2.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Multiplexing and multiple access on the radio path (3GPP TS 45.002version 12.2.0 Release 12)".

ETSI TS 145 004 (V12.0.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Modulation (3GPP TS 45.004 version 12.0.0 Release 12)".

ETSI TS 145 005 (V12.3.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Radio Transmission and reception (3GPP TS 45.005 version 12.3.0Release 12)".

ETSI TS 145 010 (V12.0.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Radio subsystem synchronization (3GPP TS 45.010 version 12.0.0Release 12)".

ETSI TS 144 060 (V12.2.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); General Packet Radio Service (GPRS); Mobile Station (MS) - BaseStation System (BSS) interface; Radio Link Control/Medium Access Control(RLC/MAC) protocol (3GPP TS 44.060 version 12.2.0 Release 12)".

QCVN 41 :2016/BTTTT

CEPT/ERC/Recommendation 74-01E (01-2011): "Unwanted emissions In thespurious domain".

ETSI TR 100 028 (all parts) (V1.4.1) (12-2001): "Electromagnetic compatibility andRadio spectrum Matters (ERM); Uncertainties in the measurement of mobile radioequipment characteristics".

ETSI TS 145 001 (V12.0.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Physical layer on the radio path; General description (3GPP TS 45.001version 12.0.0 Release 12)".

ETSI EN 300 019-1-0 (V2.1.2) (09-2003): "Environmental Engineering (EE);Environmental conditions and environmental tests for telecommunicationsequipment; Part 1-0: Classification of environmental conditions; Introduction" .

. ETSI EN 300 019-1-3 (V2.4.1) (04-2014): "Environmental Engineering (EE);Environmental conditions and environmental tests for telecommunicationsequipment; Part 1-3: Classification of environmental conditions; Stationary use atweatherprotected locations".

ETSI EN 300 019-1-4 (V2.2.1) (04-2014): "Environmental Engineering (EE);Environmental conditions and environmental tests for telecommunicationsequipment; Part 1-4: Classification of environmental conditions; Stationary use atnon-weatherp rotected locations".

ETSI TS 124 022 (V12.0.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Universal Mobile Telecommunications System (UMTS); Radio LinkProtocol (RLP) for circuit switched bearer and teleservices (3GPP TS 24.022 version12.0.0 Release 12)".

ETSI TS 148 020 (V12.0.0) (10-2014): "Digital cellular telecommunications system(Phase 2+); Rate adaption on the Base Station System - Mobile-services SwitchingCentre (BSS-MSC) interface (3GPP TS 48.020 version 12.0.0 Release 12)".

Recommendation ITU-T 0.153 (10-1992): "Basic Parameters for the measurement of.error performance at bit rates below the primary rate".

Recommendation ITU-R SM.329-12 (09-2012): "Unwanted emissions in the spuriousdomain".

ETSI EN 300 019-2-3 (V2.3.1) (04-2013): "Environmental Engineering (EE);Environmental conditions and environmental tests for telecommunicationsequipment; Part 2-3: Specification of environmental tests; Stationary use atweatherprotected locations".

ETSI EN 300 019-2-4 (V2.3.1) (08-2013): "Environmental Engineering (EE);Environmental conditions and environmental tests for telecommunicationsequipment; Part 2-4: Specification of environmental tests; Stationary use at non-weatherprotected locations".

IEC EN 60721-1 (ed.2.2, 10-2002): "Classification of environmental conditions: Part 1:Environmental parameters and their severities".

IEC EN 60721-2-1 (ed.2.0, 06-2013): "Classification of environmental conditions -Part 2-1: Environmental conditions appearing in nature - Temperature and humidity".

IEC EN 60721-2-4 (ed.1.1, 10-2002): "Classification of environmental conditions -Part 2-4: Environmental conditions appearing in nature - Solar radiation andtemperature".

5-

QCVN 41:2016/B1TT1

IEC EN 60721-3-0 (ed.1.1, 10-2002): "Classification of environmental conditions -Part 3: Classification of groups of environmental parameters and their se'verities -Introduction".

3GPP TS 45.005: "Radio transmission and reception".

1.4. Giai thieh tlP ngii'

1.4.1. 8-PSK

Ki~u di~u che kh6a dich pha 8 muc (nhU' dinh nghTat<;'liml)c 3 TS 145004).

1.4.2. 16-QAM

Ki~u di~u che bien dC)cflu phU'O'ng16 muc nhU' dU'Q'cdinh nghTa trong TS 145 004,ml)c 4 d6i v&i EGPRS2-A va ml)c 5 d6i v&i EGPRS2-B.

1.4.3. 32-QAMKi~u di~u che bien dC)cflu phU'O'ng32 muc nhU' dU'Q'cdinh nghTa trong TS 145 004,ml)c 4 d6i v&i EGPRS2-A va ml)c 5 d6i v&i EGPRS2-B.

1.4.4. Thi~t bi khu~eh d~i phl,l trq' (ancillary RF amplifier)

BC)ph~n clla thiet bi, nam gifra dflu ra ang ten thu va/ho~c phat clla BTS va ang ten,ket n6i v&i BTS bang cap dong trl)c, c6 chuc nang khuech d<;'litin hi$u ma khong cflntin hi$u di~u khi~n.

1.4.5. AQPSKKi~u di~u che kh6a dich pha cflu phU'O'ngthfch li'ng (nhU' dinh nghTa t<;'liml)C 6 TS145004).1.4.6. Bang thong RF ella tr~m g6e (base station RF bandwidth)

Bang thong tli'c thai trong d6 mC)ttr<;'lmg6c da s6ng mang phat. ho~c phat va thudong thai nhi~u s6ng mango

1.4.7. BSS

BTS ho~c BSS tfch hQ'p.GHU THIGH: Neu yeu cau phai co mot BSG rieng de thllC hi$n phep do BTS thl co the coi BSG Ia. motthiet bj do va kh6ng can quan tam den cac di~u ki$n m6i tmcmg clla BSG.

1.4.8. Thi~t bi do ki~m h~ th6ng tr~m g6c (Base Station System Test Equipment -BSSTE)

Xem PhI) Il)c B trong ETSI TS 151 021.

1.4.9. T~n s6 s6ng mang (carrier frequency)

Trung tam clla ARFCN dU'Q'cdo ki~m.

1.4.10. Kfmh logic ehuy~n m~eh kenh (circuit switched logical channels)

T~t ca cac kenh logic GSM tieu chufm, bao gom cac kenh lU'u 1U'Q'ng(TCH), cac kenhdieu khi~n chung (RACH) va di~u khi~n rieng (SDCCH, SACCH).

1.4.11. E-GSM (Extended GSM)

Bang GSM 900 ma rC)ng(bao gom bang P-GSM).

1.4.12. ECSDT?p con b~t ky clla cac kenh lU'u 1U'Q'ngE-TCH va cac kenh dieu khi~n lien quan.

1..4.13. EGPRS

7

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QCVN 41:2016/BTTTT

T~p con bat ky cua cac kenh lU'u 1U'Q'ngg6i PDTCH/MCS-1 d~n MCS-9 va cac kenhdi~u khien lien quan.

1.4.14. EGPRS2

La EGPRS2-A ho?c EGPRS2-B.

1.4.15. EGPRS2-A

Cac kenh lU'u 1U'Q'ngg6i SLr dl,mg t~p con bat ky cua cac kenh lU'u 1U'Q'ngg6i MCS-1d~n 6 va PDTCH/UAS-7 d~n UAS-11 (y dU'ang len cung vai MCS-1 d~n 4 vaPDTCH/DAS-5 d~n DAS-12 (y dU'ang xuong va cac kenh di~u khien lien quan.

CHU THicH: Ngoai ra co th~ SLr dl,lng MCS-7 va MCS-8 & dlJ'ang xu6ng khi khOng co USF ho~c PANho~c ca hai dlJ'Q'Ccap cho mot ho~c nhi~u tr<;imdi dong EGPRS.

1.4.16. EGPRS2-B

Cac kenh lU'u 1U'Q'ngg6i SLr dl:mg t~p con bat ky cua cac kenh lU'u 1U'Q'ngg6i MCS-1d~n 4 va PDTCH/UBS-5 d~n UBS-12 (y dU'ang len cung vai MCS-1 d~n 4 vaPDTCH/DBS-5 d~n DBS-12 & dU'ang xuong va cac kenh di~u khien lien quan.CHU THicH: Ngoai ra co th~ SLr dl,lng MCS-6 den va MCS-9, DAS-5, DAS-6, DAS-8, DAS-9, DAS-10pad, DAS-11 va DAS-12 pad & dlJ'ang xu6ng trong cac di~u ki$n quy djnh trong TS 144060.

1.4.17. Cang vo (enclosure port)

Va bQCv~t ly ben ngoai thi~t bi, thong qua d6 tmang di$n tli' c6 the blfC X<;1qua ho?ctac dQng vao thi~t bi.

1.4.18. f)i~u ki~n moi trU'cYng (environmental profile)

Dai cac di~u ki$n moi trU'ang trong d6 cac thi~t bi thuQc ph<;1mvi cua quy chu~n nayphai tuan thu cac quy dinh va yeu c~u ky thu~t cua quy chu~n nay. .1.4.19. GMSK

Kieu di~u ch~ nhU' quy dinhtrong TS 145004.

1.4.20. GPRS

T~p con bat ky cua cac kenh fU'u1U'Q'ngg6i PDTCH/CS-1 d~n CS-4 va cac kenh di~ukhien lien quan.

1.4.21. BTS da s6ng mang vung nho (Local Area (LA) multicarrier BTS)

MQt 10<;1iBTS da s6ng mang c6 ca may phat da s6ng mang va may thu da s6ng mangc6 cac d?c diem dap lfng yeu c~u cua pico cell.

1.4.22. Bang thong RF I&n nh~t clIa tr<;lm g6c (maximum base station RFbandwidth)

Bang thong Ian nhat trong d6 STS thue)c nh6m STS da s6ng mang phat ho?c phat vathu dcSngthai nhi~u s6ng mango

1.4.23. Bang thong I&n nh~t cua b9 '9C may phat (maximum transmit filterbandwidth)

Bang thong Ian nhat clla be) song cong ho?c be) IQc may phat SLr dl,mg trong BTSthuQc nh6m BTS da song mang phat dong thCYicac song mango

1.4.24. 8TS da s6ng mang vung trung binh (Medium Range (MR) multicarrierBTS)

MQt 10<;1iBTS da song mang c6 ca may phat da s6ng mang va may thu da song mange6 cae d~c diem dap lfng yeu c~u clla micro cell. .

QCVN 41 :2016/BTTTT

1.4.25. micro-BTS

BTS cong suat thap co cac yeu c~u ky thu$t quy djnh trong TS 145 005.CHU THlcH: Trang quy chu<fmnay khai ni~m micro-BTS cOng baa g6m BSS k~t hQ'p v6'i mQt micra-BTS.

1.4.26. Khofmg cach t~n 56 song mang nhi> nh~t (minimum carrier frequencyspacing) .

Kho2lng cach nh6 nhat giCracac t~n s6 trung tam clla cac song mang GSM clla BTSthu<)c nhom BTS da song mang dU'Q'cphat ho~c thu d6ng thai. .

CHU THlcH: Khoang cach t~mso song mang nho nhat la 600 kHz.

1.4.27. BTS da song mang (multicarrier BTS)

BTS, ngoai cac d~c tfnh clla BTS m<)tsong mang, con co kha nang Xli' Iy d6ng thaihai ho~c nhi~u song mang trong m<)tnhom thi~t bi chung.

1.4.28. BTS da song mang co may thu da song mang (multicarrier BTS equippedwith multicarrier receiver)

Nhom con clla BTS da song mang, ngoai cac d~c t1nh clla clla BTS m<)tsong mang,con co kha nang xu Iy d6ng thai hai ho~c nhi~u song mang trong m<)t nhom thi~t bichung, trong ca may phat da song mang va may thu da song mango

1.4.29. BTS thong thU'cYng(normal BTS)

BTS ho~c BSS bat ky dU'Q'Cdinh nghTa trong TS 145 005 va kh6ng phai micro-BTS,pico-BTS hay BTS da song mango

1.4.30. Bang ~n hoC}tdQng (operating band)

Cac bang t~n phat va thu k~t hQ'pthanh bang t~n dU'Q'cBSS h5 trQ'.

CHU THlcH: NhU' dU'Q'cdinh nghTatrong ml,lc 8.1.2.

1.4.31. P-GSM (Primary GSM)

Bang P-GSM 900.

1.4.32. Cae kenh logic chuy~n mC}chgoi (packet switched logical channels)

Tat ca cac kenh dCr li$u goi GPRS, bao g6m cac kenh lU'u 1U'Q'nggoi (POTCH vaPACCH) va cac kenh di~u khi~n goi chung (PRACH).

1.4.33. pico-BTS

BTS cong suat thap co cac yeu c~u ky thu$t quy dinh trong TS 145 005.CHU THicH: Trang quy chuan nay khai ni~m pico-BTS cOng baa g6m BSS k~t hQ'pvai mQt pico-BTS.

1.4.34. C6ng (port)

La m<)tgiao di$n clla thi~t bi vai moi trU'ang di$n hy.

1.4.35. QPSK

Ki~u di~u ch~ (nhU' dU'Q'cdinh nghTa trong ml)c 5 TS 145 004) dU'Q'cstJ dl)ng trongch~ dQ EGPRS2-B.

1.4.36. Kh6i vo tuy~n s6 (radio digital unit)

Thi~t bi chua kh6i bang t~mcO'So' va co chuc nang di~u khien kh6i va tuyen.1.4.37. Thi~t bi va tuy~n (radio equipment)

Thiet bi bao gam kh6i va tuyen s6 va kh6i va tuyen.

9

QCVN 41:2016/BTTTT

1.4.38. Kh6i vo tuy~n (radio unit)

Thi~t bj chCramay phat va may thu.

1.4.39. Bang-t~n thu lien quan (relevant RX band ho~c relevant receive band)

Bang t<3nthu trong bang t~n cua BTS do nha san xuat cong b5.CHU THicH: NhU' djnh nghTa trong ml,JC1.1.

1.4.40. Bang t~n phat lien quan (relevant TX band ho~c relevant transmit band)

Bang t~n phat trong bang t~n cua BTS do nha san xuat cong b5.CHU THicH: NhU' dinh nghTa trong ml,JC1.1.

1.4.41. SCPIR_UL (Subchannel power imbalance ratio on uplink)

Ty s5 giO'a cong suat trung brnh thu dU'Q'ccua kenh VAMOS phl,J2 (Pu2)va cong suattrung binh thu dU'Q'c cua kenh VAMOS phl,J 1 (Pu1), dU'Q'c bi~u dien bang10*loglO(PU2/PU1)dB, (xem ml,Jc1.3 cua TS 145005).

1.4.42. Nhom can (sub-block)

Nhom phiSdU'Q'cphan b5 k~ nhau d~ SLrdl,Jngtrong cung mQt tr9m g5c.CHU THicH: C6 th~ c6 nhi~u trU'ang hQ'pv~ cac nh6m con trong mQt bang thong RF.

1.4.43. Bang thong nhom can (sub-block bandwidth)

Bang thong cua mQt nhom con.

1.4.44. Khoang each nhom can (sub-block gap)

Khoang cach t~n s5 giO'a hai nhom con ke tiep nhau trong mQt bang thong RF.

1.4.45. Ch~ dQ VAMOS (VAMOS mode)

Ch~ dQVAMOS cho phep ghep hai thue baa SLrdl,Jngd6ng thai tren cung mQt ngu6nv~t Iy trong ch~ dQ chuy~n m9ch kenh, tren ca dU'ang xu5ng va dU'ang len, SLrdl,Jngcung mQt khe thai gian, s5 ARFCN va s5 khung TDMA. Do do mQt kenh v~t Iy cO'ban cua ch~ dQ VAMOS co kha nang ha trQ'den 4 kenh TCH cung v6'i cac kenh di~ukhi~n cua chung (FACCH and SACCH). MQt c~p kenh TCH cung v6'i cac kenh di~ukhi~n cua chung chia se cung mQt khe thai gian, s5 ARFCN va s5 khung TDMAdU'Q'c gQi la mQt c$p VAMOS (VAMOS pair). MQt kenh v~t ky cO' sO' cua che dQVAMOS co kha nang ha trQ'd~n 2 c~p VAMOS, (xem ml,Jc13.1 cua TS 145 001).

1.4.46. Kenh VAMOS phy (VAMOS sub-channel)

Cac kenh TCH cung v&i cac kenh di~u khi~n cua chung'trong c$p VAMOS trong ch~dQ VAMOS. Trong mQt c~p VAMOS, mai kenh VAMOS phl,Jphai dU'Q'cgan mQt chuaihuan luy$n khac v&i chuai huan luy$n dU'Q'cgan cho kenh VAMOS phl,Jcon 19i, (xemml,Jc 13.1 cua TS 145001).

1.4.47. BTS da song mang vung n?ng (Wide Area (WA) multicarrier BTS)

La 109i BTS da song mang chi co may thu da song mang ho~c co ca may thu va mayphat da song mang, co cac d~c tfnh dap (mg yeu c~u cua macro cell.1.5. ChiP vi~t tat

AGCAMAMRAQPSK

Di~u khi~n khuech d;;:titll dongDi~u che bien doDa t5c do thfch CrngKhoa dich pha cau phU'ang thfch

10

Automatic Gain ControlAmplitude ModulationAdaptive Multi-RateAdaptive quadrature Phase

QCVN 41:2016/BTTTT

Shift KeyingAbso!ute Radio FrequencyChannel NumberBottom

Vung nh6Kenh giCPa(tan so giCPaclla dai tan)BTS da song mang

Djch VI) vo tuyen goi chungXuyen di~u ch~M,;ing vien thong di dQng toan cau

Bao cao AckiNack nhanhTy 1$x6a khungTho<;iitoan tocKh6a dich pha Cl!C tieu Gauss

GPRS tien ti~nGPRS tien ti~n pha 2Kenh lU'u1U'Q'ngtien ti~nKenh di~u khien lien k~t nhanh

Broadcast Control ChannelBit Error RatioBLock Error RatioBase StationBase Station ControllerBase Station SystemBase Station System TestEquipmentBase Transceiver StationBasic Transmission TimeInterval

Bang thong BandwidthKieu ma h6a Coding SchemeKieu di~u ch~ va ma h6a mLrc A. EGPRS2 Downlink Level AhU'ang xuong trong ch~ dQ EGPRS2 modulation and coding SchemeKieu di~u ch~ va ma h6a mLrc B EGPRS2 Downlink Level BhU'ang xuong trong ch~ dQ EGPRS2 modulation and coding SchemeDong mQt chi~u Direct CurrentH$ thong thong tin di dQng t~ bao so Digital Cellular SystemPhat gian dO<;in Discontinuous TransmissionDCPli$u chuyen m<;ichkenh tien ti~n Enhanced Circuit Switched

DataEnhanced GPRSEnhanced GPRS phase 2Enhanced Traffic CHannelFast Associated ControlCHannelFast AckiNack ReportingFrame Erasure RatioFull rate SpeechGaussian Minimum ShiftKeyingGeneral Packet Radio ServiceInterModulationInternational MobileTelecommunicationsLocal AreaMiddlemulticarrier BTS

Tr~m thu phat gocKhoang thai gian phat cO'sa

Kenh dau (tan so thcflp nhcfltclla daitan)Kenh di~u khien quang baTy 1$loi bitTf 1$loi khoiTr<;imgocBQdi~u khien tr~m gocH$ thong tr~m gocThi~t bj do kiem h$ thong tr<;imgoc

LrngSo kenh tan so vo tuy~n tuy~t doi

FANRFERFSGMSK

LAMMCBTS

DCDCSDTXECSD

GPRS1MIMT

EGPRSEGPRS2E-TCHFACCH

DBS

BWCSDAS

BTSBTII

BCCHBERBLERBSBSCBSSBSSTE

ARFCN

.B

11

QCVN 41:2016/BTTTT

Medium RangeMobile StationMobile service SwitchingCentreNon TransparentPacket Associated ControlCHannelPiggy-backed AckiNackmessagePacket Data Traffic CHannelPhysical Random AccessChannelPhase Shift KeyingQuadrature AmplitudeModulationQuadrature Phase Shift KeyingRandom Access CHannelResidual Bit Error RatioRadio FrequencyRadio Frequency BandWidthRoot Mean SquareReduced Transmission TimeIntervalReceptionSlow Associated ControlCHannelSub-Channel Power ImbalanceRatioSub-Channel Power ImbalanceRatio on UplinkStand alone Dedicated ControlChannelSlow Frequency HoppingSilence DescriptorSpectrum ManagementTop

Traffic CHannelTraffic CHannel/Full rateSpeechTraffic CHannel/Half rateSpeech

Modulation Coding Schemepha dinh da Multipath Fading Simulator

Ki~u ma h6a di~u ch~Thi~t bj mo ph6ngdU'angVung trung binhMay di dQngTrung tam chuy~n m<;lchdi dQng

Khong trong su<3tKenh di~u khiEm lien k~t g6i

Ban tin AckiNack ky sinh

Kenh 111'u111'Q'ngdO' li~u g6iKenh truy nh~p v~t Iy ngau nhien

Kh6a dich phaf)i~u ch~ bien dQ cau phl1'O'ng

Kh6a dich pha cau phl1'O'ngKenh truy nh~p ngau nhienTi I~ loi bit dl1'Tan s<3va tuy~nBang thong tan s<3va tuy~nGia tri hi~u dl.mgKhoang thai gian phat giam

May thuKenh di~u khi~n lien k~t ch~m

Mat can bc:3ngcong suat kenh con

Ty I~ mat can bc:3ngcong suat kenhcon tren dl1'ang lenKenh di~u khi~n chuyen dl,JngdCmgriengNhay tan ch~mKy hi~u nh~n di~n I$ngQuan Iy ph6 tan s<3Kenh cu<3i(tan s5 cao nhat clla daitan)Kenh Ill'U IU'Q'ngKenh 111'U111'Q'ngl Tho<;litOElnt5c

Kenhll1'ull1'Q'ng/Tho<;libant5c

QPSKRACHRBERRFRFBWRMSRTTJ

MRMSMSC

NTPACCH

PAN

PSKQAM

MCSMFS

PDTCHPRACH

SCPIR

RXSACCH

SCPIR UL

SDCCH

SFHSIDSMT

TCHTCH/FS

TCH/HS

12

QCVN 41:2016/BTTTT

Wide Areabang Wideband AMR full rate codec

based on GMSK

TDMA

TRXTSCTUTXUAS

UBS

UEUTRA

VAMOS.

VUTS

WAWFS

Time Divison Multiple Access

May thu phatMa chuoi hu~n luy$nVung do thi di~n hlnhMay phatKi~u dieu ch~ va ma h6a mlrc Ahuang len trong ch~ dq EGPRS2Ki~u dieu ch~ va ma h6a mlrc Bhuang len trong ch~ dq EGPRS2Thi~t bi nguai dungTruy nh~p va tuy~n m~t d~t toan cau

Dich Vl,J tho<;li tren cac kenh danguai dung tuO'ng thich trong mqtkhe thai gianThll tl,JCdo ki~m ki~m huang len ch~dqVAMOSVung rqngKi~u ma h6a toan t6c AMRrqng dl!a tren GMSK

£)a truy nh~p phan chia theothai gianTransceiverTraining Sequence CodeTypical UrbanTransmissionEGPRS2 Uplink level Amodulation and coding SchemeEGPRS2 Uplink level Bmodulation and coding SchemeUser EquipmentUniversal Terrestrial RadioAccessVoice services over AdaptiveMulti-user Channels on OneSlotVAMOS Uplink Test Scenario

2. QUY f)!NH KY THU~T

2.1. f)i~u ki~n moi trU'Oong

Cac yeu cau ky thu~t clla Quy chu~n nay ap dl,Jngtrong dieu ki$n mai tmang hO<;ltdqng clla thi~t bi. Nha san xu~t phai cong b6 dieu ki$n mai tmang hO<;ltdqng cllathi~t bi va cac dieu ki$n nay phai phu hQ'pvai cac quy dinh trong Phl,Jll,JcC. Thi~t biphai luan tuan thll mQi yeu cau ky thu~t clla Quy chu~n nay khi hO<;ltdqng trong cacgiai h<;lnbien clla dieu ki$n mai truang hO<;ltdqng da cong b6.

2.2. Cae yeu e~u ky thu~t

2.2.1. Cong su~t phat trung binh clIa song mang RF

2.2.1.1. Khai ni~m86i v6'i dieu ch~ GMSK, cong su~t phat trung blnh clia s6ng mang RF la cong suattrung blnh clla phan hO'u fch clla Cl,Jm(phan hO'u ich clla cl,JmduQ'c mo ta trong TS145004).86i v6'i dieu ch~ QPSK, AQPSK, 8-PSK, 16-QAM va 32-QAM, cong suat phat trungblnh Clla s6ng mang RF tU'O'ngduO'ng v6'i cong su~t trung blnh trong mqt khoangthai gian dai clla phan hO'u fch clla Cl,Jmv6'i b~t ky TSC c6 dinh va v6'i cac bit duQ'cma h6a ngau nhien.

Ml,Jcdfch cua vi$c do ki~m la xac dinh dq chfnh xac cong su~t phat song mang RFtrung blnh CllCd~i trong dai tan hO<;ltdqng va t<;limLPccong suat tTnh l6'n nh~t.

2.2.1.2. Gi&i h.;m

13

.... __ ...i...._

QCVN 41:2016/BTTTT

...•..

Muc cong su~t tTnh l6'n nh~t tU'O'ngCrngv6'i muc cong su~t ra l6'n nh~t clla mQt songmang dO'n do nha san xu~t cong b6. -86i v6'i BTS da song mang thi mCrccong su~ttTnh l6'n nhM tU'O'ngCfngv6'i mCrccong su~t ra l6'n nh~t clla rnoi song mang trong s6cac song mang ma nha san xu~t cong b6.

Gong su~t do dU'Q'ckhi TRX dU'Q'cthi~t I~p (y muc cong su~t tTnh l6'n nh~t phai codung sai trong ph<;:lmvi :1::2dB (y di~u ki~n do binh thU'ang va :1::2,5dB (y di~u ki~n dot6'i h<;:lnso v6'i mCrc cong su~t 16'nnh~t dU'Q'ckhai bao. Gong suat do dU'Q'ctrongphep do nay dU'Q'ccoi la cong suM ra l6'n nh~t clla BTS.

f)6i v&i cac BTS co cac ki~u di~u ch~ khac GMSK thi cong suM ra l6'n nh~t clla di~uch~ QPSK, AQPSK, 8-PSK, 16-QAM va 32-QAM tU'O'ngung co th~ th~p hO'n congsuat ra GMSK.

2.2.2.C6ng su~t kenh Ian c~n

f)i~u ch~, t<;:lPam bang rQng va ph5 do chuy~n ti~p muc cong suat co th~ t<;:lOranhieu dang k~ trong TX lien quan va cac bang t~n Ian c~n. NhO'ng yeu c~u d6i v6'iphat x~ kenh Ian c~n phai dU'Q'cdo ki~m trong hai thll tl.Jcdo ki~m v6'i ml.JCdfch docac ngu6n phat x~ khac nhau nhU' sau:

Ph6 do di~u ch~ lien tl.JCva t~p am bang rQng;

Ph6 dQt bi~n do chuy~n m<;:lch.

2.2.2.1. Ph6 do di~u ch~ va t~p am bang rQng

2.2.2.1.1. Khai ni~m

Ml.Jcdfch cua vi~c do ki~m la xac djnh ph5 RF d~u ra do di~u ch~ va t<;:lPam bangrQng khong VU'Q'tqua cac muc xac dinh d6i v6'i moi may thu phat rieng Ie.2.2.2.1.2. Gi&i h~n

2.2.2.1.2.1. Yeu cfJu cJ8i v6'i BTS thU'ong

. Vi~c do ki~m phai dU'Q'cthl.J'chi~n 66i v6'i tlrng TRX. Gac bU'6'c thl.J'chi~n trong ml.Jcnay tham chi~u d~n thll tl.JCdo ki~m mo ta trong 3.3.2.1.1.

Bang 2 - Ph6 di~u ch~ lien tlJc - Cac gi&i h~nl&n nh~t d6i v&i STS

MLPC c6ng MLPC tlJ'O'ng d6i l<YnnhM (dB) t~i cac d(> I~ch clla song mangsuM, dBm (kHz v6'i d6 r6ng bang do clla b6 loc do (kHz)do dlJ'«;>'c 600 - 1 200 - 1 800 - > 6 000trong 100 200 250 400 1 200 1 800 6 000 (**)blJ'<Ycbml)c D(> r(>ng bang do: 30 kHz D(> n?ng bang

3.3.2.1.1 do: 100 kHzCau :?: 43 +0,5 -30 -33 -60 (*) -70 -73 -75 -80hlnh - ...... -._ .... _.__ ..... _ ...... _ ...- .....•....•.... _-. _._- ............••...... _. ..._._ ..__ .._-~- ...... _-_._ ..... _ ..._._-- .....__ .__ ._.__ ..-..._-_ .......•.•_- ..........• _._._ ............. __ .. _ ......._ ...._~........ _ .. ... _ ..__ ..~•.•........ - ........... _ ....... -..._.__ ........ .............

do 1 41 +0,5 -30 -33 -60 (*) -68 -71 -73 -80--_.~..... ....... _--- ..._ ..... __ .- ........... ~..... .••.....•...... _ .._ ... _ ...... __ ._ ..__ .••..•.......•.•.. _ .. ......-............... _~ ... ......... _._ .......... _~..._._ ....."'_ ...- ........... _._ ...•...• ..._ ....._ ................ .............. ~....... - ............ _-.- ..._-_. -....... .......... _ .......... -

39 +0,5 -30 -33 -60 (*) -66 -69 -71 -80.............. - ...................... _-_ .......- ..... - ..... _ .........••• _._ .........••. .....-•..••.•.... __ ...•.... __ .. .. ........•• ............. - --_._.~..... _ .._.- ......_ .._ . ._.._._ ..._ ...._ ...__ ..... _ .... ..•.•.•..... _ .. ......... -._ ..._~ ...... ........~.........+..._.~-- ..._ .... ...-........... _ ...........••.•..37 +0,5 -30 -33 -60 (*) -64 -67 -69 -80....._ ...- .•.••.........•..• _ ................ _-- ........ ... _---_ ....._.-. __ ..._ .... .._ ...-_ ...._ ...._ ..~..~.-.._ .........•.••..... _. __ .... ..~._._-._~-..._--_ ........- ............ _ ..__ ........•.. __ .. ..._ ......... __ ...- .•....... ...~...._._ .......• -._.- .•.............. ._..~.....•. _ .. -._ ...-._ ...._._ .......35 +0,5 -30 -33 -60 (*) -62 -65 -67 -80.._ ............... _._._ ..... _ ..._._- ....... ..... ...._._--_ ....._._~.- .......... -....... _ ...._ ...._ .. ....•..• _._ ...... _~ ......~._ .....••._ ...._ ..._._-_._._ .... ...__ ........... __ ....- ..... -_ ..~._...._-- ....... _ ... _ ......_.~...__ .....~......_ .. ...~---~-_........... _-~.._ ...._ ..... -

:0;; 33 +0,5 -30 -33 -60 (*) -60 -63 -65 -80

14

QCVN 41 :2016/BTTTT

CHU THICH:(*): f)6i v6'i BTS ho trQ' QPSK, AQPSK, 8-PSK, 16-QAM ho~c 32-QAM, t9i t6c dQ ky hi~u bll1h

thlf6'ng, yeu c~u d6i v6'i cae kieu dieu che nay la -56 dB.** : f)6i v6'i BTS da son man , eu c~u na cOn a dl,ln d6i v6'i dQ I$ch t~n s6 la 6 MHz.

D5i vai bU'ac do t<;licong su~t tTnh l6'n nh~t, cong su~t do dU'Q'ctrong cac bU'6'cd) vae) cua cac thu tl,lCdo kiem khong dU'Q'cVU'Q'tqua cac gi6'i hc;mtrong Bang 2 quy dinhcho mCrccong su~t do dU'Q'ctrong bU'6'cb), trli' khi co mQt ho~c nhieu hO'ncac ngo<;li1$sau va ap dl,lng cac mCrcdo kiem th~p nh~t:

Dbi v6'i tr<;lmg5c GSM 900, n~u gi6'i h<;lntU'O'ngCrngtrong Bang 2 thc1phO'n -65 dBm thl ap dl,lng gia trj -65 dBm.Dbi v6'i tr<;lmg5c DCS 1 800, n~u gi6'i h<;lntU'O'ngCrngtrong Bang 2 th~p hO'n-57 dBm thi ap dl,lng gia tri -57 dBm.Trong khoang t~n s5 tli' 600 kHz d~n 6 MHz cao hO'nva th~p hO'n t~n s5 songmang va len t6'i 3 dai v6'i dQ rQng 200 kHz co tam 6' t~n s5 la bQi s5 clla 200kHz, cac ngo<;li1$len tai -36 dBm.V6'i dQ I$ch l6'n hO'n6 MHz tli' t~n s5 song mang va len tai 12 dai v6'i dQ rQng200 kHz co tam (y t~n s5 la bQi s5 clla 200 kHz, cac ngo<;li1$len t6'i -36 dBm.

Cac yeu c~u tren dU'Q'cxacdinh tuy thuQc vao t5c dQ ky hi$u va bQ IQc sLPad<;lngxung dU'Q'cSLrdl,lng:

C~u hinh do 1: t5c dQ ky hi$u binh thU'cmg SLYdl,lng bQ IQcsLYad<;lngxung GMSK.tuy~n tfnh va t5c dQky hi$u cao hO'nSLYdl,lng bQ IQcsLYad<;lngxung ph6 h£?p.

Cac bQ IQcsLra d<;lngxung dU'Q'cdinh nghTatrong TS 145 004. BQ IQcsLYad<;lngxungph6 h£?pneu trong C~u hinh do 1 clla quy chu~n nay dU'Q'cgQi tilt la bQ IQcsua d<;lngxung h£?p.

Cac gia tri gi6'i h<;lnneu trong Bang 2, t<;licac dQ I$ch so v6'i song mang (kHz), la ty-s5 giO'a cong suM do dU'Q'Cva cong suc1tdo trong bU'6'c c) v6'i cung cong su~t tTnh.

Bang 2 quy dinh cac gia tri gi6'i h<;lncho cac mLrc cong suM rieng bi$t, d5i v6'i cacmLrCcong suM n~m giO'acac mLrCcong su~t neu trong bang thl co the ap dl::lngphepnQi suy de xac dinh mLrCgiai h<;ln.

2.2.2.1.2.2. Yeu c~u (fBi v&i BTS (fa song mang

Vi$c do kiem dU'Q'cthlYc hi$n v6'i tli'ng song mang dU'Q'ckfch hO<;ltd5i vai tli'ng d~u raang ten phat. Cac bU'ac Cl,Jthe dU'Q'Cmo ta trong ml,Jc3.3.2.1.1.

D5i vai bU'6'cdo t<;licong suM tTnh Ian nh~t, cong suM do dU'Q'ctrong cac bU'6'c d) vae) ml,lc 3.3.2.1.1 khong dU'Q'cVU'Q'tqua cac gi6'i h<;lntrong Bang 2 quy dinh cho mCrccong suM do dU'Q'ctrong bU'ac b), tn:.I'khi co mQt ho~c nhieu hO'ncac ngo<;li1$sau vaap dl,lng cac mCrcdo kiem th~p nh~t:

Cac ngo<;li1$cho phep d~n -36 dBm, -42 dBm va -50 dBm tU'O'ngtCrngvai caclo<;!iBTS da song mang vung rQng, vung trung blnh va vung nh6. Cac dieuki$n do kiem t<;liml,lc 3.3.6 chi ap dl,lng cho cac ngo<;li1$nay. S5 IlJ'Q'ngcacngo<;li1$cho phep d5i vai khoang dQ I$ch t~n s5 tli' 600 kHz d~n 10 MHz n~mngoai bang b3n phat lien quan bang 18 nhU' dU'Q'cquy dinh t<;liml,lc 3.3.6 vai N= 1.D5i vai tM ca cac bang tan, neu giai h<;lntrong Bang 2 thap hO'n -47 dBm, -53dBm va -61 dBm tU'O'ngCrngv6'i cac 10<;liBTS da song mang vung rQng, vungtrung blnh va vung nh6 thl ap dl,lng cac gia tri nay.

15

~~,~~-~~~~~-----------_._----------

QCVN 41:2016/BTTTT

2.2.2.1.2.3. Yeu cau doi vai micro BTS va pica - BTS

Vi$c do kiem phai thl!c hi~n cho 1 TRX. Cac blfac do trong ml)C nay tham chi~u d~nml)c 3.3.2.1.1.

D5i v6'i blfac do t<;licong su~t tTnh Ian nh~t, cong su~t do dlfQ'c trong cac blfac d)khong dlfQ'c VlfQ't qua cac gi6'i h<;lntrong Bang 2 quy dinh cho muc cong suat dodlfQ'c trong blfac b), tnf khi co mQt ho$c nhi~u han cac ngo<;li1$cho micro-BTS ho$cpico-BTS va ap dl)ng cac muc do ki~m th~p nh~t.

D5; v6'i blf6'c do t<;licong suat tTnh Ian nh~t, tV s5 gili'a cong su~t do dlfQ'c trong cacblf6'C e) vai cong suat do dlfQ'c trong blfac c) t<;licung blfac do cong su~t tTnh khongdlfQ'c VlfQ't qua cac giai h,~mtrong Bang 3 d5i v6'i thiet bi GSM 900 va Bang 4 d5i v6'ithiet bi DCS 1 800, tnf khi co mQt ho$c nhi~u han cac ngo<;li1$cho micro-BTS ho$cpico - BTS va ap dl)ng cac muc do kiem th~p nh~t.

Bang 3 - Ph5 di~u ch~ lien tl;lc - Cac giai h~n Ian nh~t dbi vai micro vapico - BTS GSM 900

Mlrc twO'ng d6i lOonnhM (dB) t~icae d9 I~ehLo~ic6ng

C~u hinh doella s6ng mang (kHz)v&i d9 r9ng bang do

suM ella be IQedo (100 kHz)1 800 den < 6 000 > 6 000

M1 den M3 C~u hJnh do 1 -70 -70-----_._----- /--- -----_._-----Pi C~u hJnh do 1 -70 -80

Bang 4 - Ph5 di~u ch~ lien tl;lc - Cac giai h~n Ian nhM dbi vai micro vapico - BTS DCS 1 800

Mlre twO'ng d6i lOonnhelt(dB) t~i cae d9 I~ehLo~ic6ng

C~u hinh doella s6ng mang (kHz)v&i d9 r9ng bang do ella

su~t b9 IQedo (100kHz)

1 800 den < 6 000 > 6 000M1 den M3 C~u hJnh do 1 -76 -76._-----_ .._ ..._------_ ..._---_ .._-- -------_._------------- ..._--- - ---f-------------------------

Pi C~u hinh do 1 -76 -80

NhO'ng ngo<;li 1$va cac muc gia tri do nh6 nh~t sau day ap dl)ng cho micro-BTS vapico-BTS:

Trang khoang t~n s5 t(P 600 kHz den 6 MHz cao han va th~p han t~n s5 songmang va len den 3 dai vai dQ rQng 200 kHz co tam & t~n s5 la bQi s5 cua200 kHz, cac ngo<;li1$len tai -36 dBm van dlfQ'c ch~p nh$n.

V6'i do I$ch t~n s5 Ian han 6 MHz t(P t~n s5 song mang va len t6'i 12 dai v6'ido rong 200 kHz co tam & t~n s5 la s5 bQi s5 cua 200 kHz, cac ngo<;liI~ len t6'i-36 dBm van dLPQ'Cch~p nh$n.

Neu gi6'i h,:m dlfQ'c dlfa ra & tren th~p han cac gia trj trong Bang 5 thJ lay cacgia trj theo Bang 5.

16

QGVN41:2016/BTTTT

DCS 1 800-57--_ .._-- -----------_ .._----_._--------62._----------_ ..--_ .._--67-65

GSM 900-59-64-69-68

Lo~i eong suM

Bang 5 - Phi>di~u eh~ lien tl}e - Gile giil trj nho nh~t d6i v&i micro-BTS vapieo-BTS

Phi>I&n nhM do di~u eh~ va t~p am trong 100 kHz, dBm

--

M1-----_._--_ .._- ._-------_ .._---_ ..

M2M3P1

2.2.2.2. Phi>dQtbi~n do ehuy~n m~eh

2.2.2.2.1.Khili ni~m

Ml,Ic dich clia vi~c do ki~m la xac dinh ph6 RF d~u ra do dQt bien chuy~n m<;ichkhong dU'Q'cVU'Q'tqua cac gi6'i h<;inquy dinh.

2.2.2.2.2.Gi&i h~n

D6i v6'i tM ca cac 10<;iiBTS, cong suM do dU'Q'ckhong dU'Q'cvU'qt qua cac gi6'i h<;inquy dinh trong Bang 6, hoi:lc -36 dBm tuy theo gia tri nao kern kh~t khe han.

Bang 6 - Phi>dQt bi~n do ehuy~n m~eh - gi&i h~n I&n nh~t

eo leeht~~n~6,kHz

400600

1 2001 800

Gong su~t,dBe

GSM900(GMSK

-57-67-74-74

Gong suM, dBeGSM 900 (8-PSK,QPSK,AQPSK,16-QAM,32-QAM

-52-62-74-74

Gong su~t, dBeDGS1 800 (8-PSK,QPSK, AQPSK,16-QAM,32-QAM

-50-58-66-66

2.2.3. Philt x~ gia tiPd~u n6i ang ten ella mily philt

Cac dieu ki~n do ki~m d6i v6'i phat X<;igia dan dU'Q'cxae dinh rieng d6i v6'i bang t~nphat clla BTS.

2.2.3.1. Philt x<;tgia d~n tw d~u n6i ang ten ella may philt n~m trong bang t~nphilt eua BTS

2.2.3.1.1. Khili ni~m

Chi tieu nay xac dinh cac phat X<;igia trong bang t~n phat clla BTS tiJ' d~u n6i ang tenmay phat khi co rnQtTX hO<;itdQng.

2.2.3.1.2.Gi&i h<;tn

Cong suM l6'n nhat do dU'Q'ckhong dU'Q'cl6'n han -36 dBrn. TrU'cmg hQ'p BTS thuQc10<;iiBTS da song mang thi ap dl,lng cac gi6'i h<;inquy djnh trong ml,lc 2.2.2.1.2 khihO<;itdQng (y che dQmQt song mang v6'i cong suat d~u ra l6'n nhat dU'Q'ccong bE>.

2.2.3.2. Philt x<;tgia d~n tw d~u n6i ang ten ella mily phat n~m ngoai bang t~nphat eua BTS

2.2.3.2.1. Khili ni~m

17

QCVN 41:2016/BTTTT

Vi~c do kiem chI tieu nay nhiim xac dinh cac phat Xc;lgia ngoai bang t~n phat cllaBTS tLr d~u n5i ang ten may phat khi cac may phat hOc;ltdQng, d6ng thai do kiemnhung yeu c~u v~ xuyen di~u che trong nQi bQ BTS (niim ben rigoai cac bang t~nphat va thu clla BTS). 85i vai BTS thuQc nh6m BTS da s6ng mang thj dU'Q'cdo bosung them cac yeu c~u trong bang t~n thu. Vi~c do kiem d5i vai BTS khong thuQcnh6m BTS da s6ng mang dU'Q'cthllc hi~n theo thll tl,lC do kiem quy dinh tc;liml,lC3.3.3.2.1.1. Vi~c do kiem d5i v&i BTS thuQc nh6m BTS da s6ng mang dU'Q'cthllchi~n theo cac bU'&c Cl,Ithe trong thll tl,lCdo kiem quy dinh tc;liml,lc 3.3.3.2.2.1.

2.2.3.2.2.Gi&i h~n

2.2.3.2.2.1. D6i v6'i BTS kh6ng thuQc nh6m BTS aa s6ng mang

a) Cong suat Ian nhat do dU'Q'ctrong bang t~n tU'O'nglfng khong dU'Q'cVU'Q'tqua:

+ -47 dBm d5i vai GSM 900 trong dai t~n tLr 1 805 MHz den 1 880 MHz;

+ -57 dBm d5i vai DCS 1 800 trong dai t~n tlJ' 921 MHz den 960 MHz.

b) Cong suat I&n nhat do dU'Q'cngoai cac bang t~n phat trong bU'&c a) khongdU'Q'cVU'Q'tqua:

+ -36 dBm d5i vai dai t~n tLr 9 kHz den 1GHz;

+ -30 dBm d5i vai dai t~n tLr 1 GHz den 12,5 GHz.

2.2.3.2.2.2. D6i v6'i BTS thuQc nh6m BTS aa s6ng mang

a) Cong suat Ian nhat do dU'Q'ct<;1ibU'ac c) khong dU'Q'cVU'Q'tqua:

+ -47 dBm d5i vai GSM 900 trong dai t~n tLr 1 805 MHz den 1 880 MHz;

+ -57 dBm d5i vai DCS 1 800 trong dai t~n tLr 921 MHz den 960 MHz.

b) Cong suat Ian nhat do dU'Q'ct<;1ibU'&c d) va bU'&c f) clla mt,./c3.3.3.2.1.1 ngoaicac bang t~n phat trong a) kh6ng dU'Q'cVU'Q'tqua cac gia tri trong Bang 7. L\f ladQ I~ch so v&i bien clla bang TX lien quan. 86i vai cac dQ I~ch nh6 hO'n 10MHz, cong suat do dU'Q'ckh6ng dU'Q'cVU'Q'tqua yeu c~u trong ml,lC2.2.6 ho$ccac gia tri trong Bang 7, tuy theo gia trj nao khM khe nhat.

Bang 7 - Gi&i h~n eong su~t phat x~ gia ngoai bang t~n phat

Dai t~n D9 I~ch t~n s6 Gi&i h'iln cong suM I&n nhM, dBmngoaibangt~nphat lien quan Vung r9ng Vung trung binh Vung nho

9 kHz d~n ;::::2MHz -25 -33 -461 GHz ;::::5 MHz -20 - 4,2 x (M - 5) -28 - 2,6 x (M - 5) -41

;::::10 MHz -36 -36 -361 GHz d~n ;::::2MHz -25 -33 -4512,75 GHz ;::::5MHz -20 -3 x (M - 5) -28 - 1,4 x (i1f - 5) -40

;::::10 MHz -30 -30 -30

c) Cong suat l6'n nhat do dU'Q'ct<;1ibU'ac b) Gila ml,1G 3.3.3.2.1.1 kh6ng dU'Q'cVU'Q'tqua -98 dBm, -91 dBm va -84 dBm trong bang t~n thu Gila BTS tlJ'O'ngCPngv6'iGaGnh6m BTS vung rQng, vung trung binh va vung nh6.

2.2.3.3. Phat x~ gia dan t(Pd~u n6i ang ten ella may phat nflm trong bang tin3Gva nflm ngoai bang t~n phat ella BTS

f8

QCVN 41:2016/BTTTT

2.2.3.3.1. Khai ni~mVi~c do ki~m chI tieu nay nham xac dinh cac phat x~ gia trong bang t~n thu ella UEva BS clla m;:,mgUTRA tll' d~u n6i ang ten may phat khi cac may phat hO<;itdQng.

2.2.3.3.2. Gi&i h~n

Cong suat Ian nhat do dU'Q'ctrong cac bang t~n tll' 1 920 MHz d~n 1 980 MHz va tll'2 110 MHz d~n 2 170 MHz khong dU'Q'cVU'Q'tqua -62 dBm.

2.2.4. Suy hao xuyen di~u ch~

2.2.4.1. Khai ni~mPhep do nay nham xac dinh khil nang clla thi~t bi phat RF trong vi~c h<;inch~ xu6ngdU'ai mlic xac dinh cac tfn hi~u khong mong mu6n do nhCrngph~n tLPphi tuy~n gayra khi co tin hi~u vo tuy~n (y d~u ra clla may phat va tin hi~u nhi~u tai may phat quaang ten phat.

2.2.4.2. Gi6'i h~n

2.2.4.2.1. f)6i v6'i BTS khong thuQc nhom BTS da song mang

f)8i v6'i phep 00 trang bang t<flnTX lien quan:

Ti?i cac t~n s6 I~ch kh6i t~n s6 song mang tfn hi~u mong mu6n Ian han 6 MHz chotai bien clla bang phat tU'ang ling, cac thanh ph~n xuyen di~u ch~ khong dU'Q'cvU'<;rtqua -70 dBc ho?c -36 dBm tuy theo gia tri nao Ian han. MQt trong mQt tram chu kykhe thai gian co th~ sai I~ch so vai yeu c~u tai 10 dB.T<;iicac t~n s6 I~ch kh6i t~n s6 song mang tfn hi~u mong mu6n nh6 han 6 MHz, cacchI tieu trong ml,1c2.2.2.1 dU'Q'cap dl,1ng.NhCrng ngo<;iiI~ trong ml,1C2.2.2.1 nay cOngdU'Q'cap dl,1ng.

2.2.4.2.2. f)6i v6'i BTS thuQc nhom BTS da song mang

f)8i v6'i phep 00 trang bang t<flnRX lien quan:

Trong bang t~n thu clla BTS, cac thanh ph~n xuyen di~u ch~ do trong di~u ki~n blnhthU'ang khong dU'Q'cvU'Q'tqua -98 dBm, -91 dBm va -84 dBm tU'ang ling vai cacnhom BTS vung rQng, vung trung blnh va vung nho.

f)8i v6'i phep 00 trang bang t<flnTX lien quan:

Trong bang t~n phat co lien quan, t<;iicac t~n s6 I~ch kh6i t~n s6 song mang tfn hi~umong mu6n Ian han 6 MHz cho tai 10 MHz ngoai bien clla bang phat tU'ang ling,cac thanh ph~n xuyen di~u ch~ khong dU'Q'cVU'Q'tqua giai h<;introng Bang 8 ho?c-70 dBc ho?c cac yeu c~u quy dinh trong ml,1C2.2.2.1.2.2 tuy theo gia trj nao kemkhat khe han. Ngoai ra d6i vai cac BTS da song mang thl cac thanh ph~n xuyen di~uch~ b~c 3 co th~ cho phep len d~n -60 dBc ho?c -36 dBm, tuy theo gia trj nao kemkhat khe han.Trong bang t~n phat co lien quan, t<;iicac dQ I~ch t~n s6 nho han ho?c bang 6 MHz,cac yeu c~u dU'Q'cquy dinh t<;iiml,1c2.2.2.1, ngo<;iitrll' t<;iicac t~n s6 xuyen dieu ch~cac thanh ph~n xuyen dieu ch~ khong dU'Q'cvU'Q'tqua giai h<;introng Bang 8 ho?c -70 dBc ho?c cac yeu c~uquy dinh trong ml,Jc2.2.2.1.2.2 tuy theo gia tri nao kem khat.kh~.han. Ngoai ra d6i vai cac BTS da song mang thi cac thanh ph~n xuyen dieu ch~b~c 3 co th~ cho phep len d~n -60 dBc ho?c -36 dBm, tuy theo gia tr! nao kem khatkhe han.

19

•

QGVN 41 :2016/BTTTT

86i vai cac dQ I~ch t~n s6 Ian han ho?c bang 1,8 MHz so vai t~n s6 song ma[1g tI[1hi~u mong mu6n, gia tri dBc quy dinh trong Bang 2 phai giam di 5 dB do chuyen doibang thong do tLP100 kHz xu6ng 30 kHz.

Trl1'cynghQ'p BTS da song mang nhU'ng chi h09t dQng t9i 1 t~n s6 s6ng mang thi mucva s6 111'Q'ngcac ng09i I~ len tai 10 MHz ngoai bang t~n phat lien quan dl1'Q'cxacdinh t9i ml,Jc2.2.6 vai N = 1.Cac thanh phctJnxuyen di~u che khi do & bang thong 100 kHz khong dl1'Q'cVl1'Q'tqua-16 dBm trong mQi trl1'cynghQ'p.

Bang 8 - GicYih;;m dU'cYiv~ xuyen di~u ch~

Gong su~t ra IcYnnhM clia moi song mang Gong su~t xuyen di~u ch~

> 33 dBm -36 dBm> 24 dBm va $ 33 dBm -41 dBm

$ 24 dBm -46 dBm

2.2.5. Suy hao xuyen di~u ch~ ben trong thi~t bj tr~m g6c

2.2.5.1.Khili ni~m

Phep do nay nham xac nh~n muc ella cac thanh ph~n xuyen di~u ehe dl1'Q'chlnhthanh ben trong bang RX va TX (do Sl! ro ri clla cong su~t RF git1'a cac may phat khicac may phat dl1'Q'cket hQ'pd~ ghep tai mQt ang ten dan, ho?c dang h09t dQng gctJnnhau) khong Vl1'Q'tqua giai h9n quy dinh.

2.2.5.2.GicYi hCiln

2.2.5.2.1. f)6i vcYiSTS khong thuQc nhom STS da song mang

f)8i vai phep do trang bang tim TX lien quan:

Cac yeu cctJutrong bang tctJnphat co lien quan, t9i cac dQ I~eh Ian tLP0,6 MHz den6 MHz dl1'Q'cquy dinh t9i ml,JC2.2.2.1. NhO'ng ng09i I~ trong ml,JC2.2.2.1 nay eOngdl1'Q'cap dl,Jng.

T9i cac t~n s6 I~ch khoi tctJns6 song mang tfn hi~u mong mu6n Ian han 6 MHz chotai bien clla bang phat tl1'O'ngung, cac thanh phctJnxuyen di~u che khong dl1'Q'cVl1'Q'tqua -70 dBc ho?c -36 dBm tuy theo gia tri nao Ian han. MQt trong mQt tram chu kykhe thCYigian co the sai I~ch so vai yeu cctJutai 10 dB.

2.2.5.2.2. f)6i vcYi BTS thuQc nhom STS da song mang

f)8i vai phep do trang bang tim RX lien quan:

Trong bang tctJnthu clla BTS, eac thanh phctJnxuyen di~u che do trong di~u ki~n binhthl1'cyng khong dl1'Q'cVl1'Q'tqua -98 dBm, -91 dBm va -84 dBm tl1'O'ngung va; cacnhom BTS vung rQng, vung trung bJnh va vung nho.

fJ8i vai phep do trang bang tan TX lien quan:

Ap dl,Jngcac yeu c~u trong ml,Jc2.2.6 d6i vai bang t~n phat co lien quan.

2.2.6. T?p am bang r(mg va suy hao xuyen di~u ch~ ben trong thi~t bl tr?m g6ckhi ho?t d9n9 & ch~ d9 da s6ng mang

2.2.6.1. Khili ni~m

20

QCVN 41 :20161BTTTT

Phep do nay nham xac nh~n muc cua cac thanh ph~n xuyen di~u ch~ nam trong cacbang t~n phat co lien quan cua BTS thuQc nhom BTS da song mang khong VU'Q'tquamuc giai hc~mquy djnh khi hO<;1tdQng & ch~ dQda song mango2.2.6.2. Gi&i h~n

85i vai BTS da song mang, khi co nhi~u hO'nmQt song mang dU'Q'ckich hO<;1t,trongbang t~n phat co lien quan, cong suat phat X<;1khong mong mu5n phai dU'Q'cdo ki~mt<;1icac dQ I~ch nam trong khoang tu 0,4 MHz tinh tu t~n s5 cao nhat va thap nhatcua t~n s5 song mang tin hi~u d~n 10 MHz ben ngoai bien cua bang t~n phat co lienquan.

T<;1icac dQ I~ch t~n s5 Ian hO'nho~c bang 1,8 MHz tinh tCrt~n s5 trung tam cua songmang cao nhat va thap nhat d~n 10 MHz ben ngoai bien cua bang t~n phat co lienquan, cac phat X<;1khong mong mu5n khong dU'Q'cvU'Q'tqua muc kem khat khe hO'ntrong cac yeu c~u sau:

Trong bang t~n 600 kHz nam gi[Pa cac t~n s5 trung tam cua cac thanh ph~nxuyen di~u ch~, cong suat trung blnh do trang mQt khe thO'i gian khong dU'Q'cVU'Q'tqua -70 dBc hOc;lCgiai h,;m trang Bang 9, tuy theo di~u ki~n nao kem khatkhe hO'n.

Bang 9 - Gi&i h~n dU'&i v~ xuyen di~u eh~

Cong su~t ra IcYnnh~t ella m6i song Cong su~txuyen di~u eh~mang

> 33 dBm -36 dBm

> 24 dBm va ~ 33 dBm -41 dBm

~ 24 dBm -46 dBm

Trang bang t~n 600 kHz nam gi[Pa cac t~n s5 trung tam xuyen di~u ch~ b$c ba,cong suat trung blnh cua cac thanh phan xuyen di~u eh~ do tren mQt khe thO'igian co th~ tang len d~n -60 dBc.

Cac yeu c~u trang ml,lC2.2.2.1 co th~ tang len 10xLOG(N) dB vai N 113s6 1U'Q'ngsong mang dU'Q'ckich hO<;1t.Gia tri dBc trang Bang 2 d5i vai dQ I~ch t~n cua t~ns6 trung tam cLla song mang g~n nhat so vai t~n s5 do ki~m phai dU'Q'cgiam di 5dB do chuy~n d6i bang thong do tCr100 kHz xu6ng 30 kHz.

8~ chung minh Sl! phu hQ'pvai cac yeu c~u xuyen di~u ch~ thl c~n phai do tat cacac thanh ph~n xuyen di~u ch~ b$c ba va b~c nam.

86i vai tmO'ng hQ'pdo ki~m khi phan b6 cong suat khong d5ng d~u thl ap dl,lng yeuc~u tU'O'ngung vai cong suat song mang Ian nhat

T<;1icac dQ I~ch t~n s6 nh6 hO'n 1,8 MHz ben ngoai cac song mang ngoai cung, cacphat X<;1khong mong mu6n phai dap ung mc;ltn<;1dU'Q'cxac dinh nhU'sau:

Gia trj dBc trang Bang 2 ml,lC 2.2.2.1 (Aj vai j = 0 d~n N) dU'Q'ctinh rieng chotung song mang, co xem xet d~n muc cong suat ra cua mQt song mang va dQI$ch t~n tU'O'ngung giCl'at~n s6 do kiem va song mang rieng. 85i vai cac dQ I$chIan hO'n 1,8 MHz so vai t~n s6 do kiem, gia trj dBc cLla song mang tU'O'ng ungphai dU'Q'cgiam di 5 dB do chuy~n d6i bang thong do tu 100 kHz xu6ng 30 kHz.

Gia trj dBc (Aj v6'i j = N + 1) cua suy hao 1Mvai cach xac dinh nhU' tren d6i vaiBTS da song mang phai dU'Q'ctinh rieng. Trang mQt s6 cau hlnh co the khong co

21

•

..:":

QCVN 41 :2016/BTTTT

thanh ph~n 1M rai vao t~n s6 tlJ'ang li'ng nen cac phan b6 dlJ'ai day co the boqua.

Gia tr! dBc t,?i N + 1 thu dlJ'Q'cdlJ'Q'ctinh toan trong mi~n tuy~n tfnh nhlJ' sau:N+1

A - lOl ~ lOAj/l0tinh to{m,dBc - agioLj=l

Thll tvc nay phai dlJ'Q'ctht)'c hi$n d6i vai cac dQ I$cht~n s6 ben ngoai hai phiat~n s6 song mang cao nhat va thap nhat sau: 400 kHz, 600 kHz va 1 200 kHz.

T,?i mai t~n s6 do kiem nay, phd t~n s6 khong dlJ'Q'cVlJ'Q'tqua m~t n,?phd phat x'?kh6ng mong mu6n dlJ'qc xac dinh bang AUnh loan, dBe.

B6i v&i blJ'&c c) mvc 3.3.6.1, cac yeu c~u t,?idiem do ben ngoai hai phia t~n s6 songmang cao nhat va thap nhat gi6ng nhlJ' tren vai N la tdng s6 cac song mang dlJ'Q'ckfch ho,?t. Ngoai ra trongthll tL)Cdo kiem con tht)'c hi$n do d6i vai dai t~n nam giO'ac~c song mang trong cung clla hai nhom con (sub-block), trong doap dl,lng cac yeucau sau:

B6i v&i cac dQ I$ch < 1,8 MHz nam ben phai t~n s6 trung tam clla song mang Acao nhat clla nhom con thap han ho~c ben trai t~n s6 trung tam clla song mangB thap nhat clla nhom con cao han thJ cac phat x'? khong mong mu6n khongdlJ'qc vU'qt qua m~t n,? dlJ'Q'Cxac dinh bang cach tfnh toan phd do di~u ch~ vat'?P am bang rQng tLPtung N song mang va cac thanh ph~n xuyen di~u ch~ nhlJ'quy dinh (y ph~n tren d6i vai cac dQ I$ch < 1,8 MHz trong thll tl,lc do kiem phanbd t~n s6 lien tvc.

B6i vai cac dQ I$ch ~ 1,8 MHz nam ben phai t~n s6 trung tam clla s6ng mang Acao nhatclla nh6m con thap han va cac dQ I$ch ~ 1,8 MHz nam ben tra; t~n s6

" trung tam clla s6ng mang B thap nhatclla nh6m con cao han: gia trj phd do di~uch~ va t'?P am bang rQng thu dlJ'Q'ckhi do s6ng mang A ho~c s6ng mang B, tuytheo s6ng mang nao g~n nhat, c6 the khong tang mot 1lJ'Q'ngnhi~u han "10xLOG(N) dB, ho~c dap li'ng yeu c~u v~ xuyen di~u ch~ neu tren d6i vai BTSda s6ng mang t,?i cac t~n s6 ma thanh ph~n 1MdlJ'Q'Cchap nh~n, tuy theo mCPcnao kem khat khe han.

CHO THICH: Cae thanh phan 1M thu dlJ'Q'ctCf tfnh toan dlJ'Q'cthay the bang yeu cau suy hao xuyendi~u che ben trong thiet bi BTS, trCf khi cac thanh phan 1Mxucfltphat tCf m9t ho$c ca hai nh6m con.

Giai h,?n tUY$fd6i nh6 han trong bU'ac b) ml,lc 2.2.2.1.2.2 phai dlJ'Q'cap dVng d6i vaitat ca N s6ng mang dlJ'Q'ckfch ho,?t.

T,?i cac dQ I$ch trong khoang tLP600 kHz ngoai cung hai phfa clla song mang caonhat va thap nhat d~n 10 MHz ben ngoai bang t~n phat lien quan, trong cac dai c6 dorong 200 kHz co tam t~n s6 la bQi s6 clla 200 kHz trong cac blJ'ac a) va b) ml,lc3.3.6.1, cac ngo,?i 1$ van dlJ'Q'c phep d6i vai N s6ng mang dlJ'Q'c kich hO'?t t,?iM= 8+3x(N-1) ho~c len d~n 40 dai t~n, tuy theo gia tr! nao thap nhat. Tat ca cacngo?i 1$do trong bang thong 100 kHz, tinh trung blnh tren dai t~n 200 kHz co the lenden giai h,?n trong Bang 10. Ngoai ra, tat ca cac ngo,?i 1$nam trong Qang t~n phatlien quan va len den 4 ngo,?i 1$t,?i cac dQ I$ch tai 2 MHz so vai cac bien clla dai t~nco the den -70 dBc tlJ'ang CPngvai s6ng mang dlJ'Q'cdo kiem vai bang thong do100 kHz ho$c -36 dBm, tuy theo gia tr! nao kem khat khe han. D6i vai blJ'ac c) ml)C3.3.6.1, tat ca M ngo,?i"r$tlJ'ang tt)' d6i vai N song mang dlJ'Q'ckich hO'?tphai ap dl)ngnhlJ' doi vai blJ'ac a) ml)c 3.3.6.1, bao gam dai cac do I$ch t~n s6 nam. giO'a khoangtCP0,6 MHz ve phia phai tan s6 s6ng mang Ian nhat cua nh6m con thap va 0,6 MHz

-"22

TU50

TU50

TU50

....

QCVN 41:2016/BTTTT

ve phia trai song mang th~p nh~t clla nhom con cao. Cac bang tc1n200 kHz co tc1ns5 trung tam trung v&i tc1ns5 trung tam clla cac thanh phc1nhai 1Mb$c ba do Sl,l' k~thQ'p clla hai ho$c ba song mang dU'Q'ckfch hO<;ltva cac kenh Ian c$n tU'ang Crng(:t200 kHz) khong dU'Q'ctinh vao cac ngo<;1iI~.

Bang 10 - MLPC cong su~t ngo<;li I~ d6i v&i t<;ipam bang rQng

LO<;iiBTS da s6ng mang MLPC ngo<;ii I~

Vung re)ng -36 dBm

Vung trung blnh -42dBm

Vung nh6 -50 dBm

2.2.7. MLPC nhi~u chu~n

2.2.7.1. Khai ni~mMlfC nhieu chu<1ndanh gia kha nang clla may thu khi thu me)ttin hi~u dieu ch~ mongmu5n ma khong lam tang de)giam c~p cho tru'6'c, do co tin hi~u da dieu ch~ kh6ngmong mu5n t<;1ib~t ky tc1ns5 song mang Ian c$n (nhieu kenh Ian c$n).

2.2.7.2. Gi&i h<;in2.2.7.2.1. Yeu c~u d6i vai BTS binh thU'6'ng, micro-BTS va BTS da s6ng mangvung rQng, vung trung binh, vung nh6

a) 8<) I~ch tc1n200 kHz:Khi tat SFH, phai do ki~m chi tieu loi cho moi 10<;likenh logic clla BTS, moi phep dotren me)tARFCN trong nhO'ng dieu ki~n truyen Ian nhat dinh:

TCH/FS:

FACCH/F:

E-TCH/43,2 NT ho$c d5i v&i t5c de) dO' li~u cao nhat ho$cPDTCH/MCS-5 ho$c PDTCH/MCS-x v6'i x k~ ti~p cao han:

PDTCH/UAS-7 ho$c PDTCH/UAS-x v6'i x k~ ti~p cao han: TU50

PDTCH/UBS-5 ho$c PDTCH/UBS-x v6'i x k~ ti~p cao han: TU50

PDTCH/UBS-7 ho$c PDTCH/UBS-x v&i x k~ ti~p cao han: TU50

PDTCH/UBS-10 ho$c PDTCH/UBS-x v6'i x k~ ti~p cao han: TU50

f)5i v6'i cac phep do v&i UBS-x, tin hi~u nhieu phai Slf dl:mg t5c de) ky hi~u cao hanva ~U'Q'Ct<;10b&i cung me)tki~u dieu ch~ va be)IQcslfa d<;1ngxung nhU' tin hi~u mongmuon.

b) f)e) I~ch tc1n400 kHz:

Khi tat SFH, phai do ki~m chi tieu loi cho moi 10<;1ikenh logic clla BTS, do ki~m trencac kenh RF t<;licac di~m tan s5 B, M va T trong nhO'ng dieu ki~n truyen Ian nh~tdjnh:

TCH/FS: TU50

E-TCH/43,2 NT ho$c d5i v&i t5c de) dC!' li$u cao nh~t ho$c TU50PDTCH/MCS-5 ho$c PDTCH/MCS-x v6'i x k~ ti~p cao han:

PDTCH/UAS-7 ho$c PDTCH/UAS-x v&i x k~ ti~p cao han: TU50

PDTCH/UBS-5 ho$c PDTCH/UBS-x v&i x k~ ti~p cao han: TU50

23

r-' -- ----~.=.""~=.."...,,==....-..=:;;....• =..........••••.••......_=.....=.....--'--'-'---'----==~~-

II

QCVN 41:2016/BTTTT

PDTCH/UBS-7 ho~c PDTCH/UBS-x vai x k~ ti~p cao han: TU50

PDTCH/UBS-10 ho$c PDTCH/UBS-x vai x k~ ti~p cao han: TU50

Khi tat SFH, phai do ki~m chTtieu loi cho moi lo?i kenh logic clla BTS, rnoi phep dotren me)tARFCN, trang nhO'ng di~u ki$n truy~n Ian nhM dinh:

FACCH/F: TU SO

c) Cac kenh trang ch~ de)VAMOS:

N~u BTS co ho trQ' ch~ de)VAMOS thi vi$c do kiemchT tieu loi phai dU'Q'cthllc hi$nvai kich ban do VUTS-2. .

Trang trU'cynghQ'pa) neu tren, chTtieu loi phai dap li'ng yeu cau trang Bang 11 va 12trang t~t ca cac t6 hQ'p clla cac tham sa do kiem v~: kieu kenh logic, tan sa clla tfnhi$u mong muan, de)I$ch tan 200 kHz clla tfn nhieu nhieu va di~u ki$n da dU'ang.

Trang trU'cynghQ'p b) neu tren, chTtieu loi phai dap li'ng yeu cau trang Bang 11 va 12dai vai ch~ de) EGPRS, ECSD va Bang 13, 14 dai vai t~t ca cac kenh khac trang t~tca cac t6 hQ'p clla cac tham sa do kiem v~: kieu kenh logic, tan sa clla tfn hi$u mongmuan, de) I$ch tan 400 kHz clla tfn nhieu nhieu va di~u ki$n da dU'ang.

Trang trU'cyng hQ'pc) neu tren, chTtieu loi phai dap li'ng yeu cau trang Bang 15 va 16dai vai me)t kenh lU'u 1U'Q'ngva cac kenh di~u khi~n lien quan tU'ang ung (FACCH vaSACCH) tren me)t ARFCN vai gia tri SCPIR_UL la 0 va -10 dB. Kenh lU'u 1U'Q'ng(TCH/HS, TCH/EFS, TCH/AFSx ho$c TCHNVFSx) va ch~ de)ma hoa (n~u co) vai tacde)bit Ian nh~t cho cac yeu cau (y ca hai gia trj SCPIR_UL cOng phai dU'Q'cdo kiem.

2.2.7:2.2. Yeu cc1ud6i v&i pica - BTS va BTS da s6ng mang vung nhi>a) De) I$ch tan 200 kHz:

Khi tat SFH, phai do ki~m chTtieu loi cho moi lo?i kenh logic clla BTS, moi phep do .tren me)tARFCN trang di~u ki$n truy~n Ian da dU'ang TIS:

TIS

TIS

TIS

TIS

TIS

TIS

TIS

TCH/FS:

FACCH/F:

E-TCH/43,2 NT ho$c dai vai tac de) dO' li$u cao nh~t ho$cPDTCH/MCS-S ho$c PDTCH/MCS-x vai x k~ ti~p cao nan:

PDTCH/UAS-7 ho$c PDTCH/UAS-x vai x k~ ti~p cao han:

PDTCH/UBS-S ho$c PDTCH/UBS-x vai x k~ ti~p cao han:

PDTCH/UBS-7 ho$c PDTCH/UBS-x vai x k~ ti~p cao han:

PDTCH/UBS-10 ho$c PDTCH/UBS-x vai x k~ ti~p cao han:b) De) I$ch ta n 400 kHz:

Khi tat SFH, phai do ki~m chi tieu loi cho moi /o?i kenh logic cua BTS, rnai phep dotren rne)tARFCN trang di~u ki$n truy~n Ian da dU'ang TIS:

TCH/FS: TI5FACCH/F: TI5E-TCH/43,2 NT ho$c doi vai toc de) dO' li~u cao nhat ho$c TI5PDTCH/MCS-5 ho$c PDTCH/MCS-x vai x k~ ti~p cao han:PDTCH/UAS-7 ho$c PDTCH/UAS-x vai x ke tiep cao han: TI5

24

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QCVN 41:2016/BTTTT

PDTCH/UBS-5 ho<':lcPDTCH/UBS-x v&i x k~ ti~p cao han:

PDTCH/UBS-7 ho<':lcPDTCH/UBS-x v&i x k~ ti~p cao han:PDTCH/UBS-10 ho<':lcPDTCH/UBS-x v6'i x k~ ti~p cao han:

TI5

TI5TI5

c) Cac kenh trang ch~ dOVAMOS:

N~u BTS co h6 trQ' ch~ dOVAMOS thl vi$c do ki~m chi tieu 16iphai dU'Q'cthllc hi$nv6'i kich ban do VUTS-2.

Trang trU'cmg hQ'pa) neu tren, chltieu 16iphai dap Crngyeu cc1utrang Bang 11 va 13trang tat ca cac to hQ'pclla cac tham s6 do ki~m ve: ki~u kenh logic, tc1ns6 clla tfnhi$u mong mu6n, do I$ch tc1n200 kHz clla tIn nhieu nhieu, dieu ki$n da dU'CrngT15.

Trang trU'CrnghQ'pb) neu tren, chltieu 16iphai dap Crngyeu cc1utrang Bang 11 va 12d6i v6'i ch~ do EGPRS, ECSD va Bang 13, 14 d6i v6'i tat ca cac kenh khac trong t~tca cac to hQ'pclla cac tham s6 do ki~m ve: ki~u kenh logic, tc1ns6 clla tfn hi$u mongmu6n, do I$ch tc1n400 kHz clla tIn nhieu nhieu va dieu ki$n da dU'Crng.

Gia tri a trang Bang 11 va 14 phai n~m trong khoang ti:r 1 d~n 1,6 va phai gi6ng nhaud6i v6'i ca hai trU'CrnghQ'pxuat hi$n trong dieu ki$n dang dU'CrngT15.

Trang trU'CrnghQ'pc) neu tren, chi tieul6i phai dap Crngyeu cc1utrang Bang 15 va 16d6i v6'i mot kenh lU'u 1U'Q'ngva cac kenh dieu khi~n lien quan tU'ang Crng(FACCH vaSACCH) tren mot ARFCN v6'i gia trj SCPIR UL la 0 va -10 dB va dieu ki$n da dU'CrngT15. Kenh lU'u 1U'Q'ng(TCH/HS, TCH/EFS,-TCH/AFSx ho<':lcTCHIWFSx) va ch~ doma hoa (n~u co) v&i t6c do bit l6'n nhat cho cac yeu cc1uIT ca hai gia tri SCPI~ULcOng phai dU'Q'cdo ki~m.

Bang 11 - Cae gi&i h~n 16ida dU'cyngella GSM 900 t~i mlrc nhi~u RX

Ty I~ 16i d6i v&i cac di~u ki~n truy~n IanKi~u kenh Tham 56 do 16i xac dinh

TU50 (kh6ng SFH) TI5 (kh6ng SFH)

FACCH/F (FER) 95 % 95%

E-TCH/F43 2 NT (BLER) 10 % 10 %

E-TCH/F32 0 T (BER) 01% 0.1 %

E-TCH/F28 8 T (BER) 01% 01%

E-TCH/F28 8 NT (BLER) 10 % 10 %

TCH/FS (FER) 60a% 60a%

- class Ib (RBER) o 40/a % o 40/a %

- class 1\ (RBER) 8.0% 80 %

PDTCH/MCS-5 d€;n 6 (BLER) 10 % 10 %

PDTCH/MCS-7 (BLER) 10 % 10 %



PDTCH/UAS-7 6€;n 9 (BLER) 10 % 10 %

PDTCH/UAS-10 (BLER) 10 % 10 %

PDTCH/UAS-11 (BLER) 10 % 10 %

PDTCH/UBS-5 d€;n 10 (BLER) 10 % 10 %

PDTCH/UBS~11 (BLER) 10 % 10 %

PDTCH/UBS-12 (BLER) 10 % 10 %

25

QCVN 41:2016/BTTTT

Bang 12 - Cae gi&i h~n 16ida dU'cyngcua DCS 1 800 t~i mLPcnhi~u RX

Ty I~ 16i d6i v&i cac di~u ki~n truy~n Ian xacKi~u kenh Tham 56 do 16i dinh

TU50 (khong SFH) TI5 (khong SFH)FACCH/F (FER) 34% 95%E-TCH/F43,2 NT (BlER) 10 % 10 %E-TCH/F32 0 T (BER) 0,1 % 01%

(BER)..

01%E-TCH/F28 8 T 01%E-TCH/F28,8 NT (BlER) 10 % 10 %TCH/FS (FER) 30a% 60a%- class Ib (RBER) o 25/a % 0,40/a %- class II (RBER) 8,1 % 80%PDTCH/MCS-5 d~n 6 (BlER) 10 % 10%PDTCH/MCS-7 (BlER) 10 % 10 %PDTCH/MCS-8 (BlER) 30% 30 %PDTCH/MCS-9 (BlER) 30 % 30 %PDTCH/UAS-7 d~n 9 (BlER) 10 % 10 %PDTCH/UAS-10 (BlER) 10 % 10 %PDTCH/UAS-11 (BlER) 30% 10 %PDTCH/UBS-5 d~n 10 (BlER) 10 % 10 %PDTCH/UBS-11 (BlER) 10 % (*) 10 % (*)PDTCH/UBS-12 (BlER) 10 % (*) 10 % (*)

CHU THlcH (*):Yeu c~u BLER 30 % ap dl,mg doi v&i tin hi$u mong muon bang h~p.

Bang 13 - Cae gi&i h~n 16ida dU'cyngcua GSM 900 ~i mLPcnhi~u RX eo dqI~ch 400 kHz

Ty I~ 16i d6i v&i eac di~u ki~n truy~n Ian xacKi~u kenh Tham s6 do 16i dinh

TU50 (khong SFH) TI5 (khong SFH)FACCH/F (FER) 171% 171 %TCH/FS (FER) 10 2a % 10,2a %- class Ib (RBER) 0,72/a % 0,72/a %- class /I (RBER) 8,8 % 88%

17,1 %10,20 %0,72/a %88%

6,1 %510 %0,45/0 %

8 9 %

Ki~u kenh

Bang 14 - Cae gi&i h~n 16ida dU'cyngella DCS 1 800 t~i mtPenhi~u RX co dqI~eh 400 kHz'

Ty I~ 16i d6i v&i cac di~u ki~n truy~n Ian xacTham s6 do 16i dinh

TU50 (kh6ng SFH) TIS (khong SFH)FACCH/FTCH/FS- class Ib- class II

26

QCVN 41 :2016/BTTTT

Bang 15 - Cae gi&i hC;ln16ida dU'ang ella GSM 900 tC;lirolFe nhi~u RX d6i v&ieae kenh trong eh~ dQVAMOS

Ki~u kenh Tham s6 do 16i SCPIR UL Tv Ie 16i d6i v&i kieh ban do xae dinh(dB) VUTS-2

TCH/HS (FER) 0 1%

- class Ib (RBER) 0 0,16 %

- class II (RBER) 0 3,54%

TCH/EFS (FER) 0 1%

- class Ib (RBER) 0 004%

- class II (RBER) 0 310%

TCH/AFS 12,2 (FER) 0 1%


TCH/AFS 4,75 (FER) 0 1%


TCH/AHS 7,4 (FER) 0 1%

- class Ib (RBER) 0 0.14%

- class II (RBER) 0 1.20 %

TCH/AHS 475 (FER) 0 1%

- class Ib (RBER) 0 018 %

- class II (RBER) 0 450%

TCHIWFS 12 65 (FER) . 0 1%


TCHIWFS 6 60 (FER) 0 1%

- class Ib (RBER) 0 015 %

FACCH/F (FER) 0 5%

FACCH/H (FER) 0 5%

SACCH (FER) 0 5%

Reoeated SACCH (FER) 0 5%

TCH/HS (FER) -10 1%

- class Ib (RBER) -10 013 %

- class II (RBER) -10 3.90%

TCH/EFS (FER) -10 1%

- class Ib (RBER) -10 0,04%

- class II (RBER) -10 340%

TCH/AFS 12,2 (FER) -10 1%


TCH/AHS 74 (FER) -10 1%


- class II (RBER) -10 160 %

TCHIWFS 12,65 (FER) -10 1%


1 %018 %

SCPIR ULdBoo

Tham s6 do 16iKi~u kenh

Bang 16 - Cae gi&i h,:1n 16ida dU'ang ella DeS 1 800 tC;limLPenhi~u RX d6i v&ieae kenh trong eh~ dQVAMOS

Ty I~ 16i d6i v&i kich ban doxae dinhVUTS-2

TCH/HS,- class Ib

27

QCVN 41:2016/BTTTT

Ty I~ 16i d5i v&i kjch ban doKi~u kenh Tham 55 do 16i SCPIR_UL xac dinh

(dB) VUTS-2- class II (RBER) 0 350 %TCH/EFS (FER) 0 1%- class Ib (RBER) 0 0,04 %- class II (RBER) 0 3,85 %TCH/AFS 12,2 (FER) 0 1%- class Ib (RBER) 0 0,52 %TCH/AFS 4 75 (FER) 0 1%- class Ib (RBER) 0 013 %TCH/AHS 74 (FER) 0 1%- class Ib (RBER) 0 0,18 %- class II (RBER) 0 1.54 %TCH/AHS 4,75 (FER) 0 1%- class Ib (RBER) 0 021 %- class II (RBER) 0 4,40 %TCHIWFS 12 65 (FER) 0 1%- class Ib (RBER) 0 0,32 %TCHIWFS 6,60 (FER) 0 1%- class Ib (RBER) 0 0,15 %FACCH/F (FER) 0 5%FACCH/H (FER) 0 5%SACCH (FER) 0 5%Repeated SACCH (FER) 0 5%TCH/HS (FER) -10 1%- class Ib (RBER) -10 0,15 %- class II (RBER) -10 4,01 %TCH/EFS (FER) -10 1 %- class lb (RBER) -10 0,04%- class II (RBER) -10 3,41 %TCH/AFS 12,2 (FER) -10 1%- class Ib (RBER) -10 0,67 %TCH/AHS 7,4 (FER) -10 1 %- class Ib (RBER) -10 023 %- class II (RBER) -10 1 75 %TCHIWFS 12,65 (FER) -10 1%- class Ib (RBER) -10 0,50 %2.2.8. D~c tinh ch~n

2.2.8.1. Khai ni~m

f)~c t1nh ch$n va lo~i b6 dap CPngt~p la thU'6'cdo kha nang cua may thu BTS de thumOt tin hi$u da di~u che GSM mong muon khi co tin hi$u nhieu. MCPccua tin hi$unhieu khi do kiem d~c tinh ch$n cao han so v6'i khi do kiem dap CPngt~p.2.2.8.2. Gi&i h?n

2.2.8.2.1. f)~c tinh ch~n

Ket q~a do kiem doi vai cac kenh sau day (neu BTS ho trQ') kh6ng dU'Q'CVU'Q'tquayeu cau sau:

28

QCVN 41:2016/BTTTT

Bang 17 - Cae gi&i h.;md6i v&i d~e tinh eh~n, dap wng ~p va d~e tinh xuyendi~u eh~

=2,0%

10% BLER (*)

10%BLERd6i v&i E-TCH/F43,2 NT0,1 % BERd5i v&i E-TCH/F32,0T0,1% BERd6i v&i E-TCH/F28,8 T10% BLERd6i v6'i E-TCH/F28,8 NT

10% BLER (*)

Kenh: TCH/FSKenh: E-TCH/F43,2 NTho~c d6i v&i t6c dQdCr li~u caDnh~t

Kfmh 10 ic

Kenh: PDTCH/MCS-5Ho~c PDTCH/MCS-x v6'i x la s6 caDhO'nk~ ti~Kenh: PDTCH/MCS-1 d~n MCS-4 n~u kh6ng h6 tre;>'TCH/FSCHU THlcH *: d&i v6'i cac kenh chu €ln m<;lch oi, cac eu c~u a co PAN.

Yeu c~u V~ cac t~n 55 ch~n ngoai bang chi ap dl:mg d5i vO'i cac kenh logic 5Lrdl,mgki~u di~u che GMSK.D5i vO'i ki~u kenh dU'Q'cdo ki~m, neu 55 1U'Q'ngcac t~n 55 (di~m do) ma t<;lLdo vU'Q'tqua cac giO'i h~n quy dinh neu tren thi d5i vO'imoi tin hi$u mong mu5n dU'Q'cdo ki~m55 1U'Q'ngnay phai dap Ll'ngt~t ca cac yeu c~u 5au day:a) D5i vO'i cac t~n 55 do ki~m:_ GSM 900: cao hO'n tin hi$u mong mu5n ::; 45 MHz thi 55 1U'Q'ngt6ng cong kh6ngdU'Q'cIan hO'n6._ DCS 1 800: cao hO'ntiri hi$u mong mu5n ::; 95 MHz thi 55 1U'Q'ngt6ng cOng kh6ngdU'Q'cIan hO'n 12.b) D5i vO'i cac t~n 55 do ki~m:_GSM 900: cao hO'ntin hi$u mong mu6n ::;45 MHz thi kh6ng dU'Q'cco qua 3 di~m dolien tiep._ DCS 1 800: cao hO'ntin hi$u mong mu5n ::;95 MHz thi kh6ng dU'Q'cco qua 3 di~mdo lien tiep.c) D5i vO'i cac t~n 56 do ki~m:_ GSM 900: cao hO'ri tin hi$u mong mu5n ~ 45 MHz thi 55 1U'Q'ngt6ng cong kh6ngdU'Q'cIan hO'n24._ DCS 1 800: cao hO'ntin hi$u mong mu5n ~ 95 MHz thi 55 1U'Q'ngt6ng cong kh6ngdU'Q'cIan hO'n24.d) D6i vO'i cac t~n 55 do ki~m:_GSM 900: thap hO'ntin hi$u mong mu5n > 45 MHz thi kh6ng dU'Q'cco qua 3 di~mdo lien tiep._ DCS 1 800: thap hO'ntin hi$u mong mu6n > 95 MHz thi kh6ng dU'Q'cco qua 3 di~mdo lien tiep.e) 86i vO'i BTS da song mang dU'Q'ctrang bj be)thu da song mang thi cae yeu c~utrong di~m a) va b) neu tren dLPQ'cap dl,mg doi vai cac t~n s6 trong bang tren toan be)cac bang t~n. TLPO'ngtil, cac yeu c~u trong di~m c) va d) ap dl:mg doi vO'i cac t~n 56ngoai bang tren toan be)cac bang t~n.

2.2.8.2.2. Dap (Pngt~p

Ap dl,mg cac giai h~n trong Bang 17.

29

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QCVN 41:2016/BTTTT

2.2.9. Cae d~c tinh xuyen di~u ch~

2.2.9.1. Khai ni~

f)~c tinh xuyen di~u ch~ danh gia de)tuy~n tinh clla cac phc1nRF clla may thu. Nothe hi$n kha nang clla may thu khi thu me)t tin hi$u di~u ch~ mong muon ma kh6nglam tang de)giam cap cho tfU'ac, do co hai ho~c nhi~u tin hi$u kh6ng mong muon coquan h$ v~ d?c tnl'ng tc1nso vai tin hi$u mong muon.

2.2.9.2. Gi&i hC;ln

Ap dl:mg cac giai hc,mtrong Bang 17.

2.2.1O. Tri~t di~u ch~ bien dQ(AM)

2.2.10.1. Khai ni~m

Tri$t AM la thU'ac do v~ kha nang clla RX clla BTS thu me)t tin hi$u di3 di~u ch~ GSMmong muon rna kh6ng lam tang de)giam cap cho trU'ac, do SlYco m~t clla tin hi$udi~u ch~ kh6ng mong muon.

2.2.10.2. Gi&i hC;ln

K~t qua do kiem doi vai cac kenh sau day (n~u BTS h6 trO') kh6ng dU'O'cvU'O'tquayeu cc1usau:

Bang 18 - Cae gi&i hC;lnd6i v&i tri~t di~u ch~ bien dq

Kenh logic Gi&i hanKenh: TCH/FS Gi&i h;;ln:

FER = 0,10a.%Class Ib (RBER) = OAO/a. %Class II (RBER) = 2,0 %

Kenh: E-TCH/F43,2 NT 10%BLER doi v&i E-TCH/F43,2 NTho~e doi v&i toe de)dCrli~u cao nhM 0,1 % BER doi v&i E-TCH/F32,0T

0,1% BER doi v&i E-TCH/F28,8 T10%BLER doi v&i E-TCH/F28,8 NT

Kenh: PDTCH/MCS-5 10 % BLER (*)Ho~c PDTCH/MCS-x v&i x 13 so cao hO'nk~ ti~pKenh: PDTCH/MCS-1 d~n MCS-4 n~u kh6ng 10 % BLER (*)ho trO'TCH/FSCHU THICH (*): doi vai cac kEmh chuy~n m;;2chgoi, cac yeu cau ap dl,mg doi vai BTTI kh6ng coPAN.

2.2.11. Phat xC;lgiatw d~u n5i ang ten ella may thu2.2.11.1.Khai ni~m

Phat X<;lgia la nhCrng phat X<;lt<;licac tc1nso khae vai cac kenh tc1nso ARFCN va cactc1n56 kenh Ian c$n TX cua BTS. ChI tieu nay danh gia mCPecua cac phat X<;lgia tCPdc1un6i ang ten RX cua BTS.

2.2.11.2.Gi&i han

C6ng suat philt X<;lgia kh6ng dU'O'cVU'Q'tqua:

+ -57 dBm d6i vai cac tc1nso tCP 9 kHz d~n 1GHz;+ -47 dBm doi vai cac tc1nso tLr 1GHz d~n 12,75 GHz.

30

::.: .

QCVN 41:2016/BTTTT

2.2.12. Phat x~ gia bLPC x~

2.2.12.1.Khai ni~m

Chi tieu nay danh gia muc phat X<;lgia buc X<;ltLr va clIa BTS, bao g6m ca cac phatX<;itLr cac may phat.f)5i v6'i BTS da va thl BTS v6'i kh5i v6 tuy~n s5 va v6'l kh5i vatuy~n co th~ dU'Q'cdo ki~m rieng.

2.2.12.2.Gi&i h~n

a) Cong suciltdo dU'Q'ctrong bang t~n phat lien quan cua BTS kh6ng dU'Q'cVU'Q'tqua-36 dBm.

b) Cong suM do dU'Q'ctrong dai t~n tLr 30 MHz d~n 12,75 MHz, trLr cac bang t~nphat lien quan cua BTS kh6ng dU'Q'cVU'Q'tqua:

o -36 dBm d5i v6'i cac t~n s5 d~n 1 GHz;o -30 dBm d5i v6'i cac t~n s5 tren 1 GHz.

3. PHU'O'NG PHAp DO

3.1. M6i trU'Oongdo ki~mCac phep do ki~m quy dinh trong Quy chu~n nay phai dU'Q'cthllc hi~n te;ticac di~mtieu bi~u trong ph<;imvi cac gi6'i h<;lnbien clla di~u ki~n m6i trU'cmg hO<;itdQng dacong b5.Te;tinhCrngdi~m rna chi tieu ky thu~t thay d6i tuy thuQc vao cac di~u ki~n moi trU'ang,cac phep do ki~m phai dU'Q'cthllc hi~n trong du loe;tidi~u ki~n m6i trU'ang (trongph<;imvi cac gi6'i h<;inbien clla di~u ki~n m6i trU'cmg hO<;itdQng da c6ng b5) d~ dambao tfnh tuan thu d5i v6'i cac yeu c~u ky thu~t.Th6ng thU'ang mQi phep do ki~m phai dU'Q'cthllc hi~n b~ng phep do dan trong di~uki~n do ki~m blnh thU'ang (nhU' quy dinh trong Phl,l Il,Ic 1) n~u kh6ng co cac quy dinhkhac.Tham khao ml,lC4.6 cua ETSI TS 151 021-1 v~ vi~c SLY dl,lng cac di~u ki~n do ki~mkhac d~ ki~m tra tfnh tuan thu.Trong Quy chu~n nay nhi~u phep do ki~m dU'Q'cthllc hi~n v6'i cac t~n s5 thfch hQ'p&dai thap, giCra,cao cua bang t~n hO<;itdQng cua BS. Cac t~n s5 nay dU'Q'cbi~u thi lacac kenh RF B (kenh thcilp),M (kenh giCra)va T (kenhcao).H~ th5ng do ki~m phai dap Cmg cac Thll tl,lCdo ki~m m6 ta trong Phl,l Il,IcB clla ETSITS 151 021-1. Cac thu tl,lCdo ki~m va th6ng tin khac v~ do ki~m cac tham s5 co tfnhth5ng ke dU'Q'cneu trong Phl,l Il,IcA va C cua ETS I TS 151 021-1.

3.2. Giai thich cac k~t qua do

Cac k~t qua dU'Q'cghi trong bao cao do ki~m d5i v6'i cac phep do dU'Q'cma ta trongQuy chu~n nay phai dU'Q'cgiai thfch nhU'sau:

Gia trj do dU'Q'clien quan d~n gi6'i he;tntU'ang ung dung d~ quy~t dinh vi$cthi~t bi co thoa man cac yeu c~u cua Quy chuan hay khong;Gia tr! dQkh6ng dam bao do d5i v6'i phep do clla moi tham s5 phai dU'Q'cdU'avao bao cao do ki~rn;f)5i v6'i rnoi phep do, gia trj ghi dU'Q'cclla dQ kh6ng dam bao do phai nha hanho~c b~ng gia tr! cho trong Bang 19.

Theo Quy chuan nay, trong cac phU'O'ngphap do ki~m, cac gia tr! clla dQ kh6ng dambao do phai dU'Q'ctfnh toan va phai tU'O'ngdU'O'ngv6'i h$ s5 ma rQng (h~ s5 phll)k = 1,96 (dap ung "dQtin c~y la 95%, trong trU'ang hQ'pphan b5 tieu bi~u cho cac dQkh6ng dam bao do \a phan b5 chuan (phan b5 Gaussian)).Cac nguyen tac tfnh dQ

31

QCVN 41 :2016/BTTTT

khong dam bao do dLPQ'ctrlnh bay trang TR 100 028 ho~c trLPang hQ'p Cl) th~ trangPhI) Il)c 0 clla TR 100028-2.Bang 19 dLPQ'cxay dl)'ng dl)'a tren cac h$ s6 rna rQng nay.

Bang 19 ~ 8(> kh6ng dam bao do t6i da ella h~ th6ng do ki~m

Tham s6 8(> kh6ng dambao do

Gong su~t phat trung MCfccong su~t BLP6'ccong su~t 0 :t1,O dBblnh clIa song mang RF tUy$t d6iRFPh6 do oi~u che va Gong su~t RF Gac gia tr! gi6'i h,;1n :t1,0 dBtcilPam bang rQng tuy$t d6i

Gong su~t RF of::; 0,1 MHz :to,S dBtLPangd6i 0,1 MHz <of Sai khac cong

::;1,8 MHz su~t< 50 dB: :to,?dB

Sai khac congsu~t ~ 50 dB:

i:1,5 dB> 1,8 MHz :t2,O dB

Ph6 oQt bien do Gong suM RF Gong su~t RF tuy$t i:1,5 dBchuy~n m<;lch o6i

Gong su~t tLPangd6i Sai khac congsu~t < 50 dB:

:to,? dB"Sai khac congsuM ~ 50 dB:

:t1,5 dBPhat X<;lgia dan tLr Ben trang bang :t1,5 dBd~u n6i ang ten t~n phat clla

BTSTrang bang t~n i:3 dBthu clla BTSBang t~n khac f::; 2 GHz :t1,5 dB

2 GHz < f::;4 GHz :t2,0 dBf> 4 GHz :t4,0 dB

Suy hao xuyen di~u Ben ngoai bang Gong su~t RF; Gac :t1,5 dBche va suy hao xuyen t~n thu gia tr! gi6'i h<;lntuy$tdi~u che ben trong d6ithiet bi tr<;lmg6c Gong su~t RF, cac i:2,0 dB

do ki~m tLPO'ngd6i

Ben trong bang Cong su~t RF; Cac +4 dB / -3 dBt~n thu gia tri gi6'i h<;lntuy$t

cr6iMuc nhieu chu~n Conq suM RF :tS dB / -0 dB

32

QCVN 41 :2016/8TTTT

Tham 56 B9 khong dambaa do

Gong suM RF :t1,0 dBtU'O'nqd5i

O~e tinh ch~n Gong su~t RF, :t1,0 dBtin hi$u ,mong

muonGong suM RF, f ~ 2 GHz :to,l dBtin hi$u nhieu 2 GHz < f ~ 4 GHz :t1,5 dB

f> 4 GHz :t3,0 dB

Gae d~e tinh xuyen Gong su~t RF, :t1,0 dBdi~u che may thu va tin hi$u mongtri$t di~u che bien dQ mu5n(AM) Gong su~t RF, :to,l dB

tin hi$u nhieu

Phat xa qia blfc xa Gonq su~t RF :t6,0 dB. .

3.3. PhU'O'ng phap do

3.3.1. Cong su~t phat trung binh cua s6ng mang RF

3.3.1.1. Thu tl}c do ki~m05i v6'i BTS thU'cmg, cong su~t dU'Q'cdo t,?i d~u vao clla bQ ph5i hQ'p TX ho~e t,?id~u n5i ra ang ten clia 8TS. £)5i v6'i micro BTS, eong su~t do t,?i d~u n5i ra ang tenclIa 8TS. 05i v6'i BTS da song mang, eong suM phai do t,?i tung d~u n5i ra ang'tenella 8TS.Nha san xu~t phai cong b5 mLPCeong su~t ra l6'n nh~t ella BTS d5i v&i tung lo,?idi~uehe clIa STS t,?i cung mQt di~m chu~n khi thl)'c hi$n do. BQ ph5i hQ'p TX phai co 551U'Q'ngI&n nh~t cac TRX dU'Q'cket n5i t6'i.CHU THIcH: Gia tri cong suM ra do dU'Q'ct9i d~u n6i ra ang ten thong thU'cyngSLrdl,mg cho vi$c thi~tke vung phu cua a t~ bao va co the yeu c~u cho mlJc dlch quan Iy.Toan bQ cae TRX trong c~u hlnh phai phat dll eong suM trong tM ea eac khe th6'igian it nhM la 1 gi6' trU'6'ekhi do ki~m.

Nha san xu~t phai khai bao 55 1U'Q'ngTRX co trong BTS, trU'6'ng hQ'p:

1 TRX: TRX phai dU'Q'edo ki~m t,?i cac di~m t~n 55 B, M va T.

2 TRX: Moi TRX phai dU'Q'cdo ki~ril t,?i cac di~m t~n s5 B, M va T.

3 TRX ho~c nhi~u hO'n:3 TRX phai dU'Q'cdo ki~m t,?icac di~m t~n 55 B, M va T.

£)5i v6'i BTS lo,?i da song mang, vi$c do ki~m phai dU'Q'cthl)'c hi$n d5i v&i t~t ca caesong mang dLl'Q'ccong b5 khi hO<;3tdQng v&i cong suM phan b5 deu t<;3ikhoang cacht~n 55 song mang nh6 nhM va nhom theo B, M va T d5i v6'i tung d~u n5i ra ang ten.

Trang trU'6'ng hQ'pSTS SLP dl,mg SFH tong hQ'p,BTS phai dLl'Q'cc~u hjnh v6'i s5 TRXva phan b5 tan s5 xac dinh nhLl'tren v6'i che do b~t SFH.

STS c~n do ki~m phai dU'Q'cthiet I~p d~ phat it nhM 3 khe thai gian c<;3nhnhau trongmot khung TDMA co cung mot mLPecong suM. Muc cong su~t RMS phai dLl'Q'cdotren cO' So' khe thai gian tren phan hCl'u ich clla mot trong cac khe th6'i gian hO'?t

33

QCVN 41:2016/BTTTT

de)ng va lay trung binh theo muc cong suat logarit tren it nhat 200 khe thc'Yigian. Khitinh trung binh chi lay nhO'ng cl)m hO<;Itde)ng.

Cho du SFH co dU'Q'cha trQ' hay khong, vi$c do phai thl)'c hi$n lc1n1U'Q'ttren tat ca 3tc1nso. Bang thong do kiem it nhat phai la 300 kHz.• *,'

8inh nghTa v~ phc1nhO'u ich cua khe thc'Yigian dU'Q'cneu trong TS 145 004 va TS 145010.

TrlJ'c'YnghQ'p toc de)ky hi$u thong thlfc'Yng:

Mai me)t khe thc'Yigian chua 156,25ky hi$u dlfQ'Cdi~u ch~, ho$cHai khe thc'Yigian chua 157 va 6 khe thc'Yjgian chua 156 ky hi$u dlfQ'C di~uch~.

TrU'c'YnghQ'p toc de)ky hi$u cao hO'n:

Mai me)t khe thc'Yigian chua 187,5 ky hi$u dlfQ'Cdi~u ch~, ho$cKhe thc'Yjgian 0 va 4 mai khe chua 188,4 ky hi$u va cac khe thc'Yigian con l<;Iichua 187,2 ky hi$u.

Cong suat phai dlfQ'C do t<;Iimuc cong suat tTnh cao nhat nhU' quy dinh t<;Iiml)c 2.2.1.It nhat me)t khe thc'Yigian phai dU'Q'cdo kiem cho mai TRX.

3.3.1.2. Moi trU'ang do ki~m

Binh thU'c'Yng:Mai TRX xac dinh trong Thu tl)C do kiem phai dlfQ'Cdo kiem.

Ngu6n tai h<;In:me)tTRX phai dlfQ'Cdo kiem, tren me)tARFCN.

CHU THICH: Cac phep do & di~u ki$n nguon t&i h<;3ndLYQ'cthllc hi$n t<;3iCaG gi&i h<;3nbien nhi$t dQ t&ih<;3n. .

3.3.2. Cong such kenh Ian c?n3.3.2.1. Phd do di~uch~ va t~p am bang r(>ng

3.3.2.1.1. Thu tl,!c do ki~m

H$ thong cc1ndo kiem vai me)t TRX hO<;Itde)ng ho$c vai BTS chi co me)t TRX phaidlfQ'c do kiem t<;Ii3 diem tc1nso B, M va 1. Che de)nhay tc1nch~m phai dlfQ'C tat:

a) Tat eft cac khe thc'Yigian phai dlfQ'C thiet I~p de phat du cong suat da dlfQ'c d;~uche GMSK bang me)t chuai bit gia ngau nhien cua phc1ncac bit dlfQ'C ma hoa tLPkhethc'Yjgian "0". Khe thc'Y;gian "0" phai dlfQ'Cthiet I~p de phat du cong suat nhlfng co thedi~u ch~ bang dO' li$u BCCH thU'c'Yng.Chuai bit gia ngau nhien co the dlfQ'C t<;IOrabang cach chen vao mQt chuai bit gia ngau nhien khac trlfaC khi ma hoa kenh 6'BTS.b) Muc cong suat (Bang 2 trong ml)C 2.2.2.1) phai dlfQ'C do theo phlfO'ng phap donhlf ml)c 3.3.1trong blfac muc cong suat cao nhat.c) Dung me)t be)loc va de) re)ngbang video bang 30 kHz, cong suat phai do (y tc1nsomang t<;Iidc1u noi ra ang ten. Phep do phai dlfQ'c thl)'c hi$n tren it nhat tLP50% den90% phc1n hO'u ich cua khe thc'Yigian tnf phc1n giO'a khe (midamble), va gia trj dodlfQ'C tren ph~n nay cua cl)m phai dlfQ'C lay trung binh. Vi$c lay trung binh dU'Q'cthl)'chi$n tren it nhat 200 khe thc'Yigian va chi cl)m hO<;Itde)ng mai dU'Q'ctfnh den khi laytrung binh.Phep do dlfQ'c thl)'c hi$n tren mQt khe thc'Yigian khong phai khe thc'Yigian"OH.

d) BU'ac c) phai dU'Q'c I$p l<;Iivai cac de) I$ch tc1nso cao hO'n va thap hO'n tc1nsomang nhU' sau:- TrU'c'YnghQ'p BTS khong thue)c nhom da song mang:+ 100 kHz, 200 kHz, 250 kHz, 400 kHz va

34

tb-__

QCVN 41:2016/BTTTT

+ tLr 600 kHz d~n 1 800 kHz v&i cac bU'&c biing 200 kHz.- TrU'cmg hQ'pBTS thuoc nhom da song mang+ 100 kHz, 200 kHz, 250 kHz, 400 kHz va+ tLr 600 kHz d~n va bao g6m 1600 kHz v&i cac bU'&c biing 200 kHz.e) V&i mot bO IQCva do rong bang video biing 100 kHz va t~t ca cac khe thai gianh09t dQng, trU'cmg hQ'pBTS khong thuQc 109ida song mang thi cong su~t phai dU'Q'cdo t9i d~u n5i ra ang ten v&i dO I$ch t~n 55 tLr tren 1 800 kHz d~n 2 MHz ben ngoaihai ben bang t~n clla TX lien quan. 85i v&i BTS da song mang thi cong su~t phaidU'Q'cdo t9i dO I$ch t~n 55 la 1,8 MHz. Vi$c do ki~m phai dU'Q'cthl,!'c hi$n dU'&i d9ngquet t~n 55 v&i thai gian quet t6i thi~u biing 75 ms va dU'Q'cI~y trung binh qua 200I~n quet.f) N~u TRX ho trQ' di~u ch~ 109iQPSK, AQPSK, 8-PSK, 16-QAM ho$c 32-QAM thiphai I$p 19icac bU'&c tLr a) d~n e) v&i t~t ca cac khe th<Yigian dU'Q'cthi~t I~p d~ phatv6'i ki~u di~u ch~ tU'O'ng(mg, trLr khe thai gian "0" co th~ dU'Q'cdi~u ch~ biing dCI'Ii$uBCCH thong thU'ang.fl5i v&i BTS thuoc nhom da song mang, cac phU'O'ng phap va di~u ki$n do ki~mtrong ml)c nay ap dl)ng d5i v&i cac c~u hinh co mot song mang h09t dong. fl5i v&iBTS co c~u hinh nhi~u hO'n mot song mang h09t dQng thi phai thl,!'c hi$n phep dotrong m"l)c3.3.6.3.3.2.1.2. Moi trU'cYng do.Moi trU'ang binh thU'ang.

3.3.2.2. Phi> dc)t bi~n do chuy~n m~ch

3.3.2.2.1. Thu t~c do ki~mNha san xu~t phai khai bao 55 1U'Q'ngTRX co trong BTS, trU'ang hQ'p:

1 TRX: TRX phai dU'Q'cdo ki~m t9i cac di~m t~n 55 B, M, va T.

2 TRX: mot TRX dU'Q'cdung cho BCCH va TRX con 19iphai dU'Q'ckfch h09t vado ki~m t9i cac di~m t~n 55 B, M va 1.

3 TRX: mot TRX dU'Q'cdung cho BCCH va 2 TRX con 19iphai dU'Q'ckfch h09tva do ki~m. Vi$c do ki~m phai dU'Q'cthl,!'c hi$n t9i cac di~m t~n 55 B, M,Tva ca hai TRX phai dU'Q'cdo ki~m ft nh~t t9i mQt t~n 56.

4 TRX ho$c nhi~u hO'n:mot TRX dU'Q'cdung cho BCCH, ba TRX phai dU'Q'cdoki~m trong do c~u hinh cac TRX nhU' sau: mot t9i B, mot t9i M va mott9i 1.

fl5i v&i BTS thuoc nhom da song mang thi phep do dU'Q'cthl,!'c hi$n tren mot songmang dO'n dU'Q'ckfch h09t t9i cac di~m t~n 55 B, M va T cho tLrng c6ng ra ang ten \fa

phat t9i muc cong suM I&n nh~t.

Trong trU'cmg hQ'pTRX ho trQ' BCCH co 51,!'khac bi$t v~ tfnh chM v~t Iy so v&i CclCTRX con I,?ithl chfnh no cOng phai dU'Q'cdo ki~m t,?i cac di~m t~n 55 B, M va 1.

a) TM ca cac khe thai gian dang h09t dQng phai dU'Q'cdi~u ch~ GMSK, 8-PSK,QPSK, AQPSK, 16-QAM ho$c 32-QAM biing chuoi bit gia ngau nhien, trLr khe thaigian "0" clla TRX dung cho BCCH co the dU'Q'Cdi~u ch~ bang dCI'Ii$u blnh thU'ang.Cong su~t phai dU'Q'cdo t,?imot trong cac t~n 55 song mang trong cau hlnh clla BTSt9i cac dO I$ch va vai cac tham 55 clla thi~t bi do dU'ai day. Cong suat tham chiE~Ucho nhCl'ngphep do lien quan la cong suM cao nhat clla khe thai gian clla TRX dU'o'cdo ki~m trong phep do nay 0 v&i do rong bang t6i thi~u 300 kHz.

Bang thong phan giai: 30 kHz.

35

QCVN 41 :2016/BTTTT

Bang thong video: 100 kHz.Che dQ quet zero.B~t che dQ tach song dinh.

Cac dQ l$ch so vai tc1ns6 mang nhU'sau:

400 kHz, 600 kHz, 1 200 kHz va 1 800 kHz.

b) T~t ca cac khe thai gian clla TRX ho$c cac TRX phai dU'Q'ckfch hO<;ltt<;limuccong su~t tTnh cao nh~t va cong su~t dU'Q'cdo nhU' mo ta trong bU'ac a). Neu SLrdt,mg SFH t6ng hQ'p, phep do phai dU'Q'cI$p l<;licho TRX ho$c cac TRX dU'Q'ckfchhO<;ltva khong dung cho BCCH vai Sl)' nhay tc1ngiiJ'a chung t<;licac diem tc1ns6 B, Mva T.c) BM ky TRX hO<;ltdQng nao khong ha trQ' BCCH phai dU'Q'cc~u hlnh vai cac khethai gian dU'Q'Ckfch hO<;ltxen ke t<;limuc cao nhM trong di~u khien cong suM tTnh,cac khe thai gian con '<;lia tr<;lngthai rai nhU' minh hQa a Hlnh 1 va cong su~t dU'Q'cdo nhU' mo ta trong bU'ac a).

Gong su~t r6i

.MCre eongsuM tTnh

7654321o

~ suat

.. ::===: .. .......... -..... ic=: ... ................ ~ .. ............... :=; .. ............... ......

-

Con

Gae khe thai gian

Hinh 1 - D~ng cong suM Ikhe thai gian3.3.2.2.2. Moi trU'cYngdoMoi trU'ang binh thU'ang.

3.3.3. Phat x~ gia tiP d~u n6i ang ten cLlamay phcit

3.3.3.1. Phat x~ gia d~n tiP d~u n6i ang ten cLla may phat n~m trong bang t~nphat cLla BTS

3.3.3.1.1. Thu tl;Jc do ki~ma) D6i vai BTS khong thuQGnhom BTS da song mang

BTS phai dU'Q'c c~u hinh vai mQt TRX hO<;ltdQng t<;limuc cong suM ra Ian nhM trenmQi khe thai gian. Vi$c do kiem phai dU'Q'cthl)'c hi$n t<;licac diem tc1ns6 B, M va Tclla kenh tc1ns6 RF. Che dQ nhay tan ch~m phai dU'Q'ctat.

Dau n6i ang ten clla may phat phai n6i tai mQt may phan tich ph6 ho$c von met chQnIQcvai cung tra khang d$c tfnh. B~t che dQ tach song dinh. ThllC hi$n do cong suat.

86i vai cac tc1ns6 co dQ I$ch trong khoang: 1,8 MHz :s; f < 6 MHz so vai tan 56 songmang va nam trong bang tan cua may phat BTS:Thiet bj do phai dU'Q'cc~u hlnh vaibang thong phan giai bang 30 kHz va bang thong video bang x~p xi ba Ian gia trj nay.

QCVN 41:2016fBTTTT

Doi v6'i cac t~n so co dQ I$ch ~ 6 MHz so v6'i t~n so song mang va nam trong bangt~n cua may phat BTS:Thi~t bi do phai dU'Q'cc~u hlnh v6'i bang thong phan giai bang100 kHz va bang thong video bang x~p xi ba I~n gia trj nay.

b) Doi v6'i BTS thuQc nhom BTS da song mang

Ap dl:mg cac phU'ong phap va di~u ki$n do ki~m mo ta trong ml)c 3.3.2.1.1 v6'i caec~u hinh co mQt song mang hO<;ltdQng t<;limCfc cong su~t ra Ian nh~t tren mQi khethai gian. 80i vai cac BTS co c~u hinh nhi~u song mang hO<;ltdQng thl thl!c hi$nthem phep do trong ml)C 3.3.6.

3.3.3.1.2. M6i trU'<Yng doMoi trU'ang blnh thU'cmg.

3.3.3.2. Phat x~ gia dan tw d~u nbi ang ten cua may phat n~m ngoai bang fflnphat cua BTS

3.3.3.2.1. £)bi v&i BTS kh6ng thuqc nhom BTS da song mang3.3.3.2.1.1. Tht1tl)C do ki~m

a) BTS phai dU'Q'cc~u hlnh vai t~t ca cac TRX hO<;ltdQng t<;limLPccong su~t ra Iannh~t tren mQi khe thai gian. N~u TRX dU'Q'cthi~t k~ lam BCCH rieng thl TRX nayphai dU'Q'cphan b5 kenh t~n so vo tuy~n M. TM ca cac TRX con l<;1iphai dU'Q'cphanb5 tan so theo thLPtl! sau: d~lUtien la kenh B sau do d~n kenh T, sau do phan beld6ng d~u trong toan bQ bang tan phat cua BTS. Ch~ dQ nhay tan ch~m phai dU'Q'GtM .. b) Dau noi ra ang ten cua may phat phai dU'Q'cnoi tai may phan tfch ph5 ho~c vonmet chQn IQcco cung tr6' khang d~c t1nh.

Thi~t bi do phai dU'Q'cc~u hlnh vai bang thong phan giai va bang thong video ban~l100 kHz. Thai gian quet nhc nh~t toi thi~u la 75 ms va k~t qua dU'Q'CI~y trung blnhqua 200 Ian quet.

Cong suM dU'Q'cdo tren bang tan quy dinh t<;1ibU'ac c).

c) BU'ac b) phai dU'Q'cthllc hi$n tren bang t~n so sau:

80ivai BTS GSM 900: bang tan tLr 1 S05 MHz d~n 1 SSOMHz.Doi vai BTS DCS 1 SOo:bang tan tLr 921 MHz d~n 960 MHz

d) BTS phai dU'Q'cc~u hlnh nhU' trong bU'ac a), ngo<;litrLr TRX khong dU'Q'cdun!;!cho BCGH, phai phat du cong su~t tren cac khe thai gian xen k8. Cac khe thai gianhO<;1tdQng phai nhU' nhau doi vai tM ca cac TRX. Co th~ thl!c hi$n do doi vai cac khechan ho~c cac khe Ie. N~u co nhay t~n ch~m, moi TRX khong dU'Q'cdung cho BCGHS8 nhay qua toan bQdai t~n so neu trong bU'ac a).

Thi~t bi do phai dU'Q'cc~u hlnh nhU' trong Bang 20. B~t ch~ dQ tach song dinh V;3

bang thong video phai xap xi bang ba I~n bang thong phan giai. N~u may do khan!;]co du bang thong video thl d~t bang thong video la gia trj Ian nhM co th~ va toi thi~ula 1 MHz.Gong suat phai dU'Q'cdo tren cac khoang t~n so trong dai t~n tLr 100 kHz d~n12,75 GHz nam ngoai bang t~n phat cua BTS.

Bang 20 - Do phatx? gia n~m ngoai bang t~n phat

Bang t~n 56 Dc?I~ch t~n 56 Bang thong phan giai ~TLr 100 kHz d~n 50 MHz 10kHz

...-----Tc;-50-MH-z-dful-500---f0H~-_~_==_~=~==_-=-~::=-~=~~:=~==~~-=:=.:_______ 100 ~t!~ _37

QCVN 41:2016/BTTTT

Bang t~n s6 Dc?I~ch t~n s6 Bang thong phan giaiTCP500 MHz d~n 12,75 GHz L~ch kh6i bien clla

_____~~~g9aL~~Q.g_L~~at ________~angJ2h_~!.Jien 9uan .. . ._._ .._----_.--

22 MHz 30 kHz25 MHz 100 kHz210 MHz 300 kHz220 MHz 1 MHz> 30 MHz 3 MHz

3.3.3.2. 1.2. M6i tnpang aoMoi trU'ang binh thU'ang.3.3.3.2.2. D6i v&i BTS thuc?c nhom BTS da song mang3.3.3.2.2.1. ThiJ t(.le ao kiflm

a) BTS phai dU'Q'ccau hinh vai tat ca cac TRX h09t de?ngdoi vai tCPngd~u noi raang ten t9i muc cong suat ra tU'ang ung Ian nhat tren mQi khe thai gian. Tat ca cacsong mang phai dU'Q'cphan b6 thea bU'ac b) ml,JC3.3.6 tren toan bang thong RF Iannhat clla tr9m goc, baa g6m cac kenh RF cao nhat va thap nhat co th~ co. N~u me?tsong mang dU'Q'cthi~t k~ lam BCCH rieng thi no phai dU'Q'cphan b6 kenh RF namgilfa bang thong RF Ian nhat clla tr9m goc. Bang thong RF Ian nhat clla tr9m gocphai baa g6m kenh B va trong bU'ac do l$p kenh T.Ch~ de?nhay t~n chc;imphai dU'Q'Ctat.b) Mai d~u no; ra ang ten clla may phat phai dU'Q'cnoi tai may phan tfch ph6 ho$cvon met chQn IQcco cung tra khang d$c t1nh.

Thi~t bj do phai dU'Q'ccau hinh vai bang thong phan giai va bang thong video bang100 kHz. Thai gian quet nho nhat toi thi~u la 75 ms va k~t qua dU'Q'Clay trung binhqua 200 I~nquet.

Cong suat dU'Q'cdo tren bang t~n thu clla BTS.

c) BU'ac b) phai dU'Q'cI$p 19itren bang t~n so sau:

floi vai BTS GSM 900: bang t~n tCP1 805 MHz d~n 1 880 MHz.flo; vai BTS DCS 1 800: bang t~n tCP921 MHz d~n 960 MHz

d) BTS phai dU'Q'ccau hlnh nhU' trong bU'ac a), ng09i trLr song mang khong dU'Q'cdung cho BCCH, phai phat dll cong suat tren cac khe thai gian xen ke. Cac khe thaigian h09t de?ngphai nhU' nhau doi vai tat ca cac song mango Co th~ th!,l'c hi~n do doivai cac khe chan ho$c cac khe Ie. N~u co nhay t~n chc;im, mai song mang khongdU'Q'cdung cho BCCH se nhay qua toan be?dai t~n so neu trong bU'ac a).

Thi~t bi do phai dU'Q'ccau hinh nhU' trong Bang 21.Bc;it ch~ de?tach song trung blnhva bang thong video phai xap XI bang ba I~n bang thong phan giai. N~u may dokhong co dll bang thong video thi d$t bang thong video la gia trj Ian nhat co th~ va toithi~u la1 MHz.

Cong suat phai duQ'c do tren cac khoang t~n so trong dai t~n tCP100 kHz d~n12,75 GHz nam ngoai bang t~n phat lien quan clla BTS.

e) Buac d) duQ'c I$p 'i?i cho 2 trLJ'ang hQ'p: khi cac song mang khong ho trQ' BCCHduQ'c phan bE>ti?i tan so song mang thap nhat gan kenh tan so B va cac kenh ducYnglen va khi duQ'C phan bE>ti?i kenh tan so Tva cac kenh dU'ang xuong .

. 3tr

QCVN 41:2016/BTliTT

Bang 21 - Do phat xc;J. gia n~m ngoai bang t~n phat

Bang t~n s6 D<) I~Gh t~n s6 Bang thong ph.in giai

TlI' 100 kHz d~n 50 MHz - . 10 kHz---- -_._-----_.- -_ ....._---_ ...... _ ..._._._-_ ...._._ ...__ .. --_ .._._._._._-_ ...__ ._---_._-----

TlI' 50 MHz d~n 500 MHz - 100 kHz------_., ...._----- -------------- _._---- .._------_ ...,-

TlI' 500 MHz den 1000 MHz va L$ch khoi bien cllangoai bang t~n phat lien quan ___~~Q.gJ?.bat lie~_?-p_ --_._-------_. __._--_ ..-

~ 2 MHz 30 kHz~ 5 MHz 100 kHz~ 10 MHz 300 kHz~ 20 MHz 1 MHz~ 30 MHz 3 MHz

TlI' 1000 MHz d~n 12,75 GHz------_.

L$ch khoi bien cllava ngoai bang t~n phat lien bang-2hat lien quan . ----

quan ~2 MHz 30 kHz~ 5 MHz 100 kHz~ 10 MHz 1 MHz> 30 MHz 3 MHz

86i v6'i cac BTS thuQc nh6m da s6ng mang, dinh nghTa va cac yeu c~u dU'Q'cthamchi~u d~n cac dinh nghTa trong khuy~n ngh! ITU-R SM_329-12 va CEPT/ERC/REC74-01, trong d6:

Cac phat XC?khong mong mu6n trong ch~ dQ da s6ng mang dU'Q'cquy dinh t~liml)c 2.2.6 clla Quy chuan nay (cac yeu c~u d6i v6'i tc?pam bang rQng va suy haDxuyen di~u ch~ ben trong BTS khi hoC?tdQng & ch~ dQ da s6ng mang), v6'i CaGquy djnh trong ml)C nay, ca phat XC?trong bang va phat XC?ngoai bang & dQ I$clht~n len d~n 2 x BW Hnh tll' bien tc1nphat lien quan, trong d6 BW la bang than!;)clla may phat dU'Q'cdung nhU' bang thong cc1n thi~t d~ xac dinh dU'cmg bien gi[Pacac vung ngoai bang va vung gia. Bang thong may phat la dQ rQng clla bangt~nch(Pa dU'cmg bao clla cac s6ng mang phat.Bang thong may phat cc1nthi~t it nhc1tcho moi nha khai thac la 5 MHz, vi dl) BVVb~ng 5 MHz.Cac phat XC?gia theo dinh nghTa trong CEPT/ERC/REC 74-01 dU'Q'c quy dinhtrong ml)C 2.2.3.2 clla Quy chuan nay tll' 2 x BW = 10 MHz va cac dQ I$ch tc1n56. cao hO'n. 8U'<yng bien vung gia 10 MHz cOng dU'Q'cap dl,mg d6i v6'i cac bangthong may phat rQnghO'n.Ngoai ra con c6 mQtgi6'i hC?ntren d6i v&i cac phat XC?khong mong mu6n (y cac dQI$ch tll' 0 MHz d~n 10 MHz ben ngoai bien cac bang t~n phat lien quan tuy thuQcVaGcac gi&i hC?ntrong mvc 2.2.3.2.2.2 trong Quy chuan nay.Cac bang tc1nphat lien quan dU'Q'cquy djnh trong Bang 1 clla Quy chuan nay.

3.3.3.2.2.2. M6i trwng aoMoi tmang blnh thU'cmg.

3.3.3.3. Phat xc;J. gia d~n tLPd~u nbi ang ten clla may phat trong bang t~n 3G van~m ngoai bang cin phat clla BTS

3.3.3.3. 1. Thu tl)C ao kiem

a) BTS khong thuQc nh6m da s6ng mang phai dU'Q'ccc1uhlnh v&i tM ca cac TRXhO<:ltdQng t<:limuc cong suM ra tU'O'ngung l6'n nhc1ttren mQi khe thai gian. N~u TRXdU'Q'cthi~t k~ lam BCCH rieng thl TRX nay phai dU'Q'cphan bo kenh tc1nso vo tUYE~nM. Tc1t ca cac TRX con l<:Iiphai dU'Q'cphan bo tc1nso thea thu tLYsau: dc1utien la

39

••••• pes mf"!C'!'''''' •.••-.••'•."T"""'"•••. ""=V""".-"!T1.,n~-.~" .,., --.. H'''''' """--'"' "''f'IT ,.•", ••,.,,~,~~ .., ,,,",-.._-~.••..,"-, .. -

QCVN 41:2016/8TTTT

kenh B sau do den kenh T, sau do phan bo d6ng d~u trong toan bQ bang tan phatIan nh~t clla BTS. Che dQ nhay tan ch$m phai dU'Q'Ctat. ,86i vai BTS thuQc nhom da song mang thi BTS phai dU'Q'cc~u hinh v&i tat ca cacTRX ho;::!tdQng d6i v&i tung dau n6i ra ang ten t;::!;mLrc cong su~t ra tU'O'ngLrng I&nnh~t tren mQi khe thai gian. T~t ca cac song mang phai dU'Q'cphan bo theo bU'&c b)ml,1C3.3.6 tren toan bang thong RF Ian nh~t clla tr9m g6c, bao g6m cac kenh RF caonh~t va th~p nh~t co th~ co. N~u mQt song mang dU'Q'cthi~t k~ lam BCCH rieng thino phai dU'Q'c phan bo kenh RF n~m giG'a bang thong RF I&n nh~t clla tr9m g6c.Bang thong RF Ian nhM clla tr9m g6c phai bao g6m kenh B va trong bU'ac do I?pkenh T. Che dQ nhay tan ch$m phai dU'Q'Ctat.b) 8au n6i ra ang ten clla may phat phai dU'Q'cn6i t&i may phan tlch pho ho?c vonmet chQn IQc co cung tra khang d?c tlnh.Thiet bi do phai dU'Q'cc~u hinh vai bang thong phan giai va bang thong video bang100 kHz. Thai gian quet nho nh~t t6i thi~u la 75 ms va ket qua dU'Q'cI~y trung binhqua 200 Ian quet.

Cong su~t dU'Q'c do tren bang tan g6m: tu 1 920 MHz d~n 1 980 MHz va tu2 110 MHz den 2 170 MHz.3.3.3.3.2. M6i trLnyng aDMoi trU'ang binh thU'ang.

3.3.4. Suy hao xuyen di~u ch~

3.3.4.1. Thu tl;Jc do ki~m .

N~u BTS ho trQ' SFH thi che dQ nay phai dU'Q'Ctat khi do ki~m.

Nha san xu~t phai khai bao s5 1U'Q'ngTRX trong BTS. BTS phai dU'Q'cc~u hinh vais6 1U'Q'ngIan nh~t cac TRX ma no ha trQ'. Vi~c do ki~m phai dU'Q'cthllc hi~n v&i s51U'Q'ngclla cac TRX va tan s5 xac djnh trong tai Ii~u ky thu$t.

ChTTRX do ki~m dU'Q'Ckfch h09t. Toan bQ cac TRX con 19ia tr<~ngthai rai tren mQtARFCN thuoc bang tan phatClla BTS.

CHU THICH: DeS; vai BTS SLr dl,mg be;,phoi ghep di~u chTnh t~n thl di~u quan trQng trong qua trinhthl,l'C hi$n phep do nay la phai di~u chTnh t~n so cua tat ca cac thanh ph~n cua be;,phoi ghep v~ ph<;lmvi bang t~n phat cua BTS.

Cong ra ang ten clla TX do ki~m bao g6m bQph5i ghep phai dU'Q'cn5i t&i mQt thiet bighep, t90 thanh thiet bi RF co tai v&i tra khang la 50 Q. Tan s6 Clla tin hi~u do ki@mphai nam trong bang nay (xem ml,1c8.1.2).

Tin hi~u do ki~m la tin hi~u khong dU'Q'cdi~u che va tan s5 phai la x MHz I~ch khoitan s5 clla TX can do ki~m. TRX can do ki~m phai dU'Q'cthi~t I$p a mLrc di~u khi~ncong su~t tTnh Ian nh~t va mLrc cong suM clla tin hi~u do ki~m phai di~u chTnh th~phO'n muc nay 30 dB. Tin hi~u do ki~m dU'Q'cminh hQa tren Hinh 2. Muc cong su~tclla tin hi~u do ki~m phai dU'Q'cdo t9i di~m cu5i clla thi~t bi phat nO'i thao rai capd6ng trl,1cn5i vryi ang ten va tra khang phai dung 50 Q.

Cong su~t ra ang ten clla TX phai dU'Q'cdo trllc tiep t<;'1idiem cu6i cong ra ang tenqua mot ang ten giil. Cac tan s6 eua thanh phan xuyen di~u che trong bang tan lienquan clla TX va RX phili dU'Q'cnhan dc.mgva dU'Q'Cdo theo thu tl,1csau:3.3.4.1.1. Do trong bang t~n RX

Thiet bi do co dQ rQng bang clla bQ IQCbang 100 kHz, che do quet t~m s6, I~y trungbinh qua 200 Ian quet,thai gian quet It nhat bang 75 ms. Tan 56 I~ch X phili dU'Q'cchon de t<;'1Ora thanh phan xuyen dj~u che b$c th~p nhat nam trong bang tan RX.

40

QCVN 41 :2016/8TTTT

3.3.4.1.2. Do trong bang ffin TX

a) £)8; vai BTS kh6ng fhuQc nh6m BTS aa s6ng mang

Phep do ph~i 'dU'Q'c thl!c hi~n v6'i cac dQ I~ch tc1n so X bang: 0,8 MHz;2,0 MHz; 3,2 MHz va 6,2 MHz. Phai do cong suM clla tM ca cac thanh phc1nxuyendieu ch~ b$c 3 va 5. PhU'O'ngphap do chi ra dU'6'i day ph!,l thuQCvao dQ I~ch tc1ns6clla thanh phc1nxuyen dieu ch~ so v6'i tc1ns6 song mang:

- 86i v6'i nhG'ng phep do t<;:licac dQ I~ch tc1nso tLr tc1nso l6'n hO'n6 MHz so v6'i. tc1ns6 TRX hO<;:ltdQng, cong su~t dinh clla cac thanh phc1nxuyen dieu ch~ b~tky phai dU'qc do v6'i bang thong phan giai bang 300 kHz, ch~ dQ quet zero,qua mot chu kY khe thai gian. Phep do nay phai dU'qc thl!c hi~n qua mQt s6lU'qng dll cac khe thai gian d~ dam bao Sl! tuan thll theo phU'O'ngphap do t<;:liPh!,l Il,IcA clia ETSI TS 151 021. Gong su~t tham chi~u clla cac phep do lienquan la cong su~t do dU'qc clla TRX cc1ndo ki~m v6'i bang thong phan giai t6ithi~u bang 300 kHz.

- 86i v6'i nhG'ng phep do t<;:licac do I~ch tc1ns6 ~ 1,8 MHz so v6'i tc1ns6 cllaTRX hO<;:ltdong, cong su~t clia cac thanh phc1nxuyen dieu ch~ phai do ban~1cach do chQn t~n SLrdl,lng gia tr! trung binh video tren mQt khoang tll' 50% d~n90% clla phc1nhG'u fch clla khe thai gian trLr ph~n giG'a khe(midamble). Vi~cI~y trung binh dU'qc thl!c hi~n qua it nh~t 200 khe thai gian va chTtren nhG'nflcl,Imho<;:ltdong. Bang thong RF va bang thong video clla bQ IQcclla thi~t bidola 30 kHz.

- 86i v6'i nhG'ng phep do t<;:licac dQ I~ch t~n s6 tLr 1,8 MHz d~n 6 MHz, conflsuM clla thanh ph~n xuyen dieu ch~ dU'qc do a ch~ dQ quet tc1nso v6'i thaigian quet th~p nh~t t6i thi~u la 75 ms va dU'qc I~y trung binh qua 200 lc1nquet.Bang thong RF va bang thong video clla bQ IQcclla thi~t bi do la 100 kHz.

b) £)8i vai BTS fhuQc nh6m BTS aa s6ng mang

Phep do phai dU'qc thl!c hi~n v6'i cac dO I~ch t~n so X bang: 0,8 MHz;2,0 MHz; 3,2 MHz va 6,2 MHz. Gong su~t clla tM ca cac thanh phc1nxuyen dieu ChE~b$c 3 va 5 phai dU'Q'cdo v6'i bang t~n 600 kHz nam giG'a t~n s6 trung tam clla chung.PhU'O'ngphap do chTra dU'6'iday phl,l thuQc vao dQ I~ch t~n so clla thanh phc1nxuyendieu ch~ so v6'i tc1ns6 song mang:

- f)6i v6'i nhG'ng phep do t<;:licac dO I~ch t~n so tLr t~n s6 l6'n hO'n6 MHz ~o vo'it~n so TRX hO<;:ltdong, cong su~t trung binh clla thanh phc1nxuyen dieu chi~b~t ky phai dU'qc do v6'i bang thong phan giai bang 300 kHz, ch~ dQ quetzero, qua mot chu trinh khe thai gian. Phep do nay phai dU'qc thl!c hi~n quamQt so lU'qng dll cac khe thai gian d~ dam bao Sl! tuan thll theo phU'O'ngphapdo t<;:liPh!,ll!,lc A clla ETSI TS 151 021. Gong su~t tham chi~u clla cac phep dolien quan la cong suM do dU'Q'cclla TRX cc1ndo ki~m v6'i bang thong phangiai toi thi~u bang 300 kHz. Phep do phai dU'Q'cthl!c hi~n t'ili cac t~n s6 trunntam nam trong bang :t150 kHz xung quanh tc1nso trung tam clla cac thanhph~n xuyen dieu ch~.

- f)6i v6'i nhCmgphep do t<;licac dQ I~ch tc1nso tLr t~n so tLr 1,8 MHz d~n 6 MHz,cong suM trung binh cua thanh ph~n xuyen dieu ch~ bM ky phai dU'Q'cdo vo'ibang thong phan giai bang 100 kHz, ch~ dQ quet zero, qua mQt chu ky khethai gian. Phep do nay phai dU'Q'cthl!c hi~n qua mQt so 1U'Q'ngdu cac khe tho'igian de dam baa Sl! tuan thu thea phU'O'ngphap do t'ili Ph!,l l!,IcA clla ETSI TS151 021. Cong suM tham chi~u cua cac phep do lien quan la cong suM dodU'Q'ccua TRX can do kiem v6'i bang thong phan giai toi thieu bang 100 kHz.

41

mn'====y=pg====

QCVN 41:2016/8TTTT

Phep do phai dU'Q'c thl!c hi$n t<;ii cac t~n 56 trung tam nam trong bang:t250 kHz xung quanh t~n 56 trung tam cua cac thanh ph~n xuyen di~u che.D6i vai nhCl'ng phep do t<;ii cac do I$ch t~n 56 tlY t~n 56 tlY 1,2 MHz den1,8 MHz, cong suat trung binh cua thanh ph~n xuyen di~u che bc1tky phaidU'Q'cdo vai bang thong phan giai bang 30 kHz, che do quet zero, qua motchu ky khe thai gian. Phep do nay phai dU'Q'cthl!c hi~n qua m<?t56 1U'Q'ngducac khe thai gian d~ dam bao 51! tuan thu theo phU'O'ngphap do t9i Phl} Il}c Acua ETSI TS 151 021. Cong suc1ttham chieu cua cac phep do lien quan lacong suc1t00 oU'Q'ccua TRX c~n do ki~m vai bang thong phan giai t6i thi~ubang 30 kHz.

3.3.4.2. M6i trU'cyng doMoi tnJ'ang binh thU'ang.Thl!c hi~n cac phep do sau day tuy theo 56 1U'Q'ngTRX ma BTS ho trQ':

1 TRX: TRX phai dU'Q'cdo ki~m t<;iicac di~m t~n 56 B, M, va 1.

2 TRX: Mot TRX phai dU'Q'cdo ki~m t<;iicac di~m t~n 56 B, M, va 1. Moi TRXoU'Q'cdo ki~m It nhat mot I~n.

3 TRX ho~c nhi~u hO'n:mot TRX oU'Q'cdo ki~m t<;iiB, mot t<;iiM va mot t9i 1.

BTS thuQc nh6m da s6ng mang phai dU'Q'cdo ki~m t<;iiB, M, va T cho tlYng d~u n6i raang ten phat.

Cong suat (dB)••

f

70dS

Il'

XX30dS

Nhieu

IfO+X kHzfo

1\ m

f \I \

/ I

Tin hi$u I !\mongmuon II I 1

I j \-:------.------------/----\-----11----- ----

I \

) \I '

,I \

II-I

Hinh 2 - VI dy v~ suy hao xuyen di~u ch~ TX

3.3.5. Suy hao xuyen di~u ch~ ben trong thiM bi tr~m g6c

3.3.5.1. Thu tyc do ki~m

Neu BTS ho trQ' SFH thi che do nay phili dU'Q'ctat khi do kiem.

BTS phili dU'Q'ccc1uhinh vai d~y du cac TRX. Moi thiet bj phat RF phai hO<;itdong t<;iimuc cong suc1t Ian nhat (Muc cong suat tTnh Ian nhat nhU' neu trong ml}c 2.2.1) vadl1'Q'Cdi~u che bang chuoi gia ngau nhien.

42

QCVN 41:2016/8TTTT

86i v6'i BTS thui;>cnh6m da s6ng mang thl cac phep do phai dU'Q'cthl,/'c hi$n chotll'ng d~u n6i ra ang ten v6'i s6 1U'Q'ngs6ng mang ho trQ' it nh~t (~ 2) va s6 1U'Q'ngls6ng mang l6'n nhM do nha san xuM cong bo, phat tren cong su~t l6'n nh~t can ban£1tuy theo cong su~t cong bo d6i v6'i moi c~u hlnh.

Trang bang phat lien quan, cac thanh ph~n xuyen di~u che phai do te;ticac di;>I$cht~n s6 nam ngoai khoang t~n s6 cao nh~t va th~p nh~t clla cac s6ng mango

TM ca cac t~n s6 clla thanh ph~n xuyen di~u che trong bang TX va RX phai duQ'cxac dinh va do theo trlnh tl,/'sau:

3.3.5.1.1. Do trong bang clIa RXThiet bi phai hoe;ttdi;>ng(y cac ARFCN sao cho thanh ph~n xuyen di~u che b~c th~pnhM nam trong bang thu. Vi$c do ki~m phai thl,/'c hi~n te;tid~u n6i ra ang ten cuaBTS, bang cach dung mi;>tmay do chQn t~n.

SO'd6 c~u hlnh do ki~m nhU'trong PhI) h,lcA.

Thiet I~p may do:

Bi;>IQcv&i bang thong video bang 100 kHzChe di;>quet t~n so.

- Thai gian quet it nh~t bang 75 ms va dU'Q'cI~y trung blnh qua 200 I~n quet.3.3.5.1.2. eo trong bang clIa TXa) fJ8i v&i BTS khong fhuQc nh6m BTS cIa s6ng mang

Thiet bi phai hoe;ttdi;>ngte;tikhoang cach t~n so d~u va nhc nh~t dU'Q'cxac dinh choc~u hlnh BTS c~n do ki~m.

Uoi v6'i cac di;>I$ch t~n s6 l6'n hO'n6 MHz, cong suM dinh clla cac thanh ph~n xuyendi~u che bM ky phai dU'Q'cdo v&i bang thong phan giai bang 300 kHz, che di;>qUE~tzero, qua mi;>tchu ky khe thai gian. Cong su~t dinh phai dU'Q'cdo qua mi;>ts6 1U'Q'ni::J"cac khe thai gian dll I&n d~ dam bao Sl,/'phu hQ'pv6'i phU'O'ngphap do neu trong ml)CA.1 clla ETSI TS 151 021. Cong su~t tham chieu clla cac phep do lien quan la congsu~t do dU'Q'ccua TRX c~n do ki~m v6'i bang thong phan giai toi thi~u bang 300 kHz.

Uoi v6'i cac do I$ch t~n so :::;1,8 MHz, cong su~t clla thanh ph~n xuyen di~u che phiiidU'Q'cdo chQn t~n SLr dl)ng trung blnh videotCr 50% den 90% ph~n hCfu ich clla khethai gian va khong bao g6m ph~n giCfa khe. Vi~c I~y trung blnh se dU'Q'cthl,l'c hi$n itnh~t qua 200 khe thai gian va chi tinh tCr nhCfng cl,lm hoe;ttdi;>ng.Bang thong phangiai va bang thong video clla bO IQc clla thiet bi do la 30 kHz.

U6i v6'i cac dO I$ch t~n s6 trang khoang tCr1,8 MHz den 6 MHz, cong su~t clla thanhph~n xuyen di~u che phai do trong che di;>quet t~n so v6'i thai gian quet It nh~t la 75ms va dU'Q'CI~y trung blnh qua 200 I~n quet. Bang thong phan giai va bang thongvideo cua bO IQcclla thiet bj do la 100 kHz.

b) f)6i v&i BTS thuQc nh6m BTS cIa s6ng mang

Cac phep do dU'Q'cthl,/'c;hi$n theo ml,lc 3.3.6.

3.3.5.2. Moi trU'cYng doMoi tmang blnh thU'ang.

3.3.6. T;;tpam bang ri?ngva suy hao xuyen di~u ch~ ben trong thi~t hi tr;;tmgilCkhi ho;;ttdi?ng iY ch~ di?da s6ng mang3.3.6.1. Thll tyc do ki~m

43

QCVN 41:2016/BTTTT

N~u BTS he trQ' SFH thi ch~ de)nay phai dU'Q'ctat khi do kiem.

a) Cac phep do phai dU'Q'cthlfc hi~n tc;litCrng dc1un6i ra ang ten vai s6 1U'Q'ngs6ngmang Ian nh~t ma nha san xu~t cong b6 va phat tren cong su~t Ian nh~t can b~ngtuy theo cOng su~t cong b6.Thi~t bi phai hOc;ltde)ng tc;likhoang cach tc1ns6 s6ng mang nh6 nh~t dU'Q'cc~u hlnhcho BTS c~n do kiem. Phep do thlfc hi~n thlfc hi~n d6i vai cac s6ng mang xungquanh diemtc1n s6 M.b) BTS thuQc nh6m BTS da s6ng mang phai dU'Q'cc~u hlnh de ho~t dQng vai s61U'Q'ngs6ng mang ho trQ' ft nh~t (~ 2) va s6 1U'Q'ngs6ng mang Ian nhM do nha sanxuM cong b6, phat tren cong su~t Ian nh~t can b~ng tuy theo cong suM cong b6 d6ivai mai c~u hinh va dU'Q'cphan b6 nhU' mo ta sau day tren bang thong RF Ian nh~tcua BTS, dU'Q'cc~u hlnh chua diem tc1ns6 B. Phep do dU'Q'cli;lp Ic;lia c~u hlnh mabang thong RF Ian nhat cua BTS chCradiem tc1ns6 T.Ngoai ra, n~u khong co thanh phc1nxuyen dieu ch~ b~c 3 tc;li b~t ky c~u hlnh naoxu~t hi~n ben ngoai nhom cac song mang va ben trong bang tc1nTX lien quan hoi;lcbang thong Ian nhM cua be) IQc phat, tuy gia tri nao nh6 nh~t, thi cac khoang cachtc1ns6 song mang phai dU'Q'cgiam deu cho d~n khi xu~t hi~n mQt thanh phc1nxuyendieu ch~ b~c 3 g~n nhM vai nhom cac song mang, tren mQt trong cac bien bang tc1ncua bang thong co the ap dl;Jng,va phep do dU'Q'Cli;lp Ic;li.Khi giam cae khoang cachtc1ns6, ca hai c~u hlnh t~n s6 song mang phai dU'Q'cdo kiem cho hai trU'ang hQ'p:trU'ang hQ'p mQt la tc;lit~n s6 th~p nh~t dU'Q'cgiG'a diem tc1ns6 B va cang gc1nbiencua bang t~n dU'ai cang t6t va trU'ang hQ'p hai la tc;li tc1ns6 Ian nhat dU'Q'cgiCl'tc;lidiem t~n s6 T va gc1nbien cua bang tc1ntren cang t6t.c) N~u BTS thuQc nhom BTS da song mang, theo cong b6 cua nha san xu~t, ho trQ'phan bo t~n s6 khong lien tl,JCnhU' neu trong ml,JCB.2.10 va nhieu han hoi;lc b~ng 4song mang, thi cac phep do phai dU'Q'cthlfc hi~n cho tCrngdc1un6i ra ang ten vai s61U'Q'ngsong mang nhieu nh~t dU'Q'cphan b6 cang deu cang t6t giCl'ahai nh6m convai bien cua mei nhom con trung bien cua bang thong RF Ian nh~t cua BTS. Cacnhom con dU'Q'cdi;lt xung quanh diemtc1n s6 M vai khoang cach giCl'acac nh6m conla 5 MHz va bang thong cua nhom con nhU' trong Bang 22. Cac song mang phai hOc;ltdQng te;:ticong su~t can b~ng Ian nh~t trong c~u hlnh nay. .

Bang 22 - Bang thong nhom con d6i vcYiphan b6 t~n 56 khong li~n k~ nhau

So 1U'Q'ngsong Bang thong nhom con Khoang each tan 56 can bangmang IcYnnh~t [MHz] IcYnnh~t (Deq) [MHz]

4 4 3,65 d~n 6 4 1,87 d~n 8 4 1,29 d~n 10 4,4 111 d~n 12 4,4 0,813 d~n 14 5,2 0,815 d~n 16 6 0,8

CHU THICH: 80i vai so 1U'Q'ngsong mang Ian nhat, moi Ian tang them 2 song mang thl bang thOngnh6m con tang 0,8 MHz nhU'ng Deq van la 0,8 MHz.

Be phan b6 cac s6ng mang trong bU'ac b) va ben trong nh6m con nhLl' bU'ac c), Sl)'sa; 'khac giG'a cac khoang cach song mang Ian c?n, giCl'a cac tc1ns6 trung tam cuas6ng mang phai ~ 200 kHz va cac thanh phc1n1Mb?c 3, tc;lora do SLYk~t hQ'pbat kycua hai hoi;lc ba tc1ns6, phai cung xu~t hi~n trong phe;:tmvi 400 kHz, do tc;licac tc1ns6trung tam cua cac thanh phc1n1M. Bat ky SLYk~t hQ'p day du cac y~u t6 nay deu c6

44

t". ~.f

QCVN 41:2016/STTT1'

th~ su dl)ng, nhU'ng cau hinh cling t~n 56 song mang phai dU'Q'c su dl)ng khi di~lTIt~n 56 B ho~c T lc1n1U'Q'tnam trong phep do.

Thu tl)C sau day ap dl,mg d6i vai bU'ac b):Tinh toan khoang cach tc1n 56 can bang Ian nhat (Deq) ben trong bang thon~JRF cua BTS (RF-Bwmax). LU'u y 121cac tc1n56 trung tam cua cac song mannngoai cling phai 121200 kHz ben trong cac bien cua bang tc1n RF-Bwmax V~lDeq 121bQi 56 cua 200 kHz.Phan be mQt song mang t<;1it~n 56 thap nhat va mQt t<;1itc1n 56 sao nh<1tco th€~ben trong RF-Bwmax.Phan be cac song mang con Ii?i ti?i cac tc1n56 d!ch khoi mQt trong cac tc1n s(~ngoai cling mQt bQi 56 cua Deq vai cac dQ I~ch bien dei. Cac dQ I~ch nay c6th~ 1l1achQn tllY Y 1210, +200 kHz ho~c -200 kHz nhU'ng 51! sai khac gifra haikhoang cach kenh Ian c~n khong qua 200 kHz. Khong dU'Q'c phep thiet I~ptoan bQ cac dQ I~ch bang O. Ngoai ra cac giai hi?n trai 1M (1M3 cling xuat hi~ntrong phi?m vi 400 kHz) phai dU'Q'c dap Crng.

TrU'cmg hQ'p ngoi?i I~, neu cac dieu ki~n neu tren khong dU'Q'c th6a man thi khoan!~cach tc1n56 gifra cac song mang ngoai cling xac d!nh trong bU'ac 2 dU'Q'c giam xu6ng200 kHz bang cach phan be Ii?i song mang ngoai cling ben phai neu B nam tron!~phep do ho~c phan b6 l<;1isong mang ngoai cling ben trai neu T nam trong phep db.

Thu tl)C sau day ap dl,mg d6i vai bU'O'c c):Ghi Ii?i khoang cach t~n s6 can bang Ian nhat co th~ (Deq) tLr Bang 22.Trong moi nhom con, phan be trong bang thong cua nhom con mQt son!~mang ti?i tc1n56 thap nhat va mQt ti?i tc1n56 cao nhat co th~ dU'Q'c.Phan be cac song mang con Ii?i ti?i cac tc1n56 dich khoi mQt trong cac tc1n SISngoai cling mQt bQi 56 cua Deq vai cac dQ I~ch bien dei. Neu 56 1U'Q'ngcacsong mang ben trong hai nhom con nay khong deu thi cc1n bo bat mQt bQi 5,5ctla Deq kh6i nhom con co it song mang hO'n. Cac dQ I~ch nay co th~ Il)'achQn tllY Y la 0, +200 kHz ho~c -200 kHz nhU'ng 51)'sai khac gifra haikhoangcach kenh Ian c~n khong qua 200 kHz.

TrU'cYng hQ'p ngoi?i I~, neu cac dieu ki~n neu tren khong dU'Q'c th6a man thi thu tl)Ctren co th~ dU'Q'c sua dei nhU' sau:

i) Co th~ SLr dl)ng thu tl)c tren vai bang thong nhom con nh6 hO'n neu bangthong RF Ian nhat cua BTS khong du, vai khoang cach tc1n 56 can bang Iannhat co th~ la bQi 56 nho hO'n tiep theo cua 200 kHz.

ii) Neu i) khong dU'Q'c thoa man thi co th~ SLr dl)ng thu tl)C tren vai khoang cachsong mang nh6 nhat neu bang thong RF Ian nhat cua BTS khong duo TrongtrU'cYng hQ'p nay khong dU'Q'c SLr dl)ng cac dQ I~ch bien dei nhU' mo tai trongbU'O'c 3).

iii) Neu i) ho~c ii) khong thoa man thi co th~ SLr dl)ng thu tl)C tren khi khai bao 561U'Q'ngsong mang Ian nhat thap hO'n d6i vai phan be tc1ns6 khong lien tl)C.

86i vai cac dQ I~ch tc1ns6 Ian hO'n 6 MHz so v6'i tc1n s6 trung tam cua song mangngoai cling ben trai va ben phai, cong suat trung blnh phai dU'Q'c do tren du 56 khethcYi gian d~ dam bao Sl,/'tuan thll phU'O'ng phap do trong ml)c A.1 clla ETSI T3 151021 :

Ben trong bang 600 kHz co di~m gifra d~t ti?-i cac tc1n s6 trung tam clla c~lcthanh phc1n xuyen dieu che, cac phep do phai dU'Q'c thl,/'c hi$n vai cac tc1n s6trung tam clla bang thong do nam trong bang tc1n :t150 kHz xung quanh c~ictc1n s6 trung tam clla cac thanh phc1n xuyen dieu che, SLr dl)ng bang thong dola 300 kHz. Cong suat tham chieu clla cac phep do lien quan la cong suat cLiarnQt trong cac song mang cc1ndo v6'i bang thong 300 kHz.

45

QCVN 41:2016/8TTTT

D5i vai cac d(> I~ch ngoai cac bang 600 kHz xung quanh tan s5 trung tam cllacac thanh phan xuyen di~u ch~, cac phep do phai dU'Q'cthllc hi~n vai cac tans5 trung tam clla bang thong do bat dau t?i diem ::1:350kHz xung quanh cactan s5 trung tam cua cac thanh phan xuyen di~u ch~, Slf dl,mg bang thong dola 100 kHz. Cong SUl3ttham chi~u clla cac phep do lien quan la cong suat cllam(>ttrong~cac song mang can do vai bang thong 30 kHz.

D5i vai cac d(> I~ch tan s5 tll' 1,8 MHz d~n va g6m 6 MHz so vai tan s5 trung tam cuasong mang ngoai cung ben tra; va ben phai, cong suat trung binh phai dU'Q'cdo cych~ d(>quet tan s5, thai gian quet nh6 nhat t5i thieu la 75 ms va lay trung binh qua200 Ian quet:

Ben trong bang 600 kHz co diem giO'a d~t t?; cac tan s5 trung tam clla cacthanh phan xuyen di~u ch~, cac phep do phai dU'Q'cthl!c hi~n vai cac tan s5trung tam cua bang thong do n~m trong bang tan ::1:250kHz xung quanh cactan s5 trung tam cua cac thanh phan xuyen di~u ch~, Slf dl,mg bang thong RFva bang thong video clla b(> IQc la 100 kHz. Cong suat tham chi~u clla cacphep do lien quan la cong suat clla m(>ttrong cac song mang can do vai bangthong 100 kHz.D5i vai cac d(> I~ch ngoai cac bang 600 kHz xung quanh tan s5 trung tam cllacac thanh phan xuyen di~u ch~, cac phep do phai dU'Q'cthllc hi~n vai cac tans5 trung tam clla bang thong do bi3t dau t?i diem ::1:350kHz xung quanh cactan s5 trung tam cua cac thanh phan xuyen di~u ch~, SLrdl,mg bang thong dola 100 kHz. Cong suat tham chi~u cua cac phep do lien quan la cong suat cuamot trong cac song mang can do vai bang thong 30 kHz.

D5i va; cac d(> I~ch tan s5 nh6 han 1,8 MHz so vai tan s5 trung tam clla song mangngoai cung ben trai va ben phai, cong suat trung binh phai dU'Q'cdo b~ng phep dochQn tan Slf dl:mg trung binh video tren 50% d~n 90% cua phan hO'u ich clla khe thaigian, trll' phan giO'a khe. Vi~c lay trung binh dU'Q'cthllc hi~n qua it nhat 200 khe thaigian va chf lay cac Cl,Jmho?t d(>ng. Bang thong RF va bang thong video cua b(> IQcdo phai la 30 kHz. Cong suat tham chi~u cua cac phep do lien quan la cong suat cuam(>ttrong cac song mang can do vai bang thong 30 kHz.Cac di~u ki~n do kiem d5i vai ph6 di~u ch~ lien tl,JClien quan d~n cac do I~ch tan s5va thi~t I~p ch~ d(> tach song gi5ng nhU' trong ml,Jc3.3.2.1 d5i vai BTS thuoc nhomBTS da song mango

3.3.6.2. Moi trU'cYng doMoi trU'ang binh thU'ang.

3.3.7. MlvCnhieu ehu~n

3.3.7.1. Thu tye do kj(~m

. N~u BTS ho trQ' SFH thi ch~ d(> nay phai dU'Q'Ctat khi do kiem, trll' khi do kiem Slfdl)ng cac die,u ki~n Ian truyen co SFH Iy tU'cyng.

N~u SFH du'Q'c Slf dl,Jng trong khi do kiem, BTS se nhay qua khoang cach va s51U'Q'ngcac ARFCN Ian nhat co the trong cau hinh BTS. Neu khong ho trQ' SFH, dokiem phai dU'Q'c thllc hi~n tren mot s5 1U'Q'ngnhat djnh cac ARFCN. T5i thieu m(>tTRX phai dU'Q'cdo kiem mot khe thai gian.

Cac phep do phai dU'Q'cthU'c hi~n t?i cau hinh ang ten dan, trLPtmang hQ'p cac kenhchuyen m?ch goi co t5c dO ky hi~u cao han v~ cac kenh trong che dO VAMOS cocau hinh hai ang ten nhU'ng khong tU'ang quan ho$c Slf dl,JngdO tang ich khac nhaugiCracac nhanh.

46

QCVN 41:2016/BTTTf

Hai tin hi~u vao phai dU'Q'cdU'a t&i dau noi RX tU'O'ngung qua m~mg phoi ghep. Khido ki~m, moi tin hi$u dU'Q'cdU'a qua mQt bQ mo ph6ng pha dinh da dU'cyng(MPS)nhU' mo ta t<;1iml,lc B.1 clIa ETSI TS 151 021, tru cac trU'ang hQ'pcac dQ I$ch tan soclla tin hi$u nhieu so v&i tin hi$u mong muon bang 400 kHz, t<;1id6 bQt<;10nhieu ph,li{y ch~ dQ tTnh, n~u khong thl nhU' neu trong Bang 25 va 26. Cac di~u ki$n truy~n Ianpha dinhda dU'cmg phai la khong tU'O'ngquan. Trong trU'ang hQ'p cac kenh {y ch~ 6QVAMOS, hai tin hi$u mong muon dau vao va hai tin hi~u nhieu dU'a vao tung dau nISiang tenmay thu phai qua bQ mo ph6ng pha dinh da dU'cyngd~ cac di~u ki$n truy@nIan pha dinh da dU'ang giO'a cac tin hi~u vao va tat ca cac ang ten may thu la khongtU'O'ngquan. Cac dQ I$ch tan So va cac muc lien quan clla cac tin hi$u nhieu dU'Q'cquy dinh trong Bang 23 doi v&i kich ban do VUTS-2. Cac tin hi$u mong muon trenkenh VAMOS phl,l 1 va kenh VAMOS phl,l 2 phai dU'Q'cdi~u ch~ GMSK va dU'Q'cmah6a theo ki~u kenh trong Bang 30. Cac tin hi$u nhieu phai dU'Q'cdi~u ch~ GMSKbang dong bit gia ngau nhien khong c6 phan giO'a. Cac tin hi$u dau vao phai Sll'dl,lng cac dong bit gia ngau nhien dQc I~p v&i nhau.

Bang 23 - Cae kieh ban do mLPenhi€!u ehu~n dc3ivai cae kenhtron eh~ do VAMOS

Dai tr€! ellabo tao nhi€!uKhong tre

Khan tre

TSC

Khong

Khan

MLPCeong su~t ellabo tao nhi€!u *Tin hi~u nhi€!uKieh ban

doVUTS-2 Kenh Ian c~n 1 *

Kenh Ian c~n 2 ** 0 dBCHU THicH (*): MUGcong su~t tll'O'ng quan v6'i kenh lanc~n 1.

**: Ca hai bO t;;1onhieu d~u tren clmtan s6 kenh Ian G~n.

Muc cong suat tham chi~u cho ca hai tin hi$u phai la cong suat trung blnh dU'a t{yidau n6i ang ten RX clla BTS. Cong suat nay dU'Q'cdo bc1ngcach lay trung blnh cliat6ng cong suat tren cac dU'ang rieng h~.

Doi v&i cac kenh chuy~n m<;1chkenh dU'Q'cdi~u ch~ GMSK, tru cac kenh {y ch~ dQVAMOS, tin hi$u mong muon phai c6 muc cong suat nhU' quy dinh trong Bang 24 codi~u ch~ GSM thU'cyng.TrU'ang hQ'p pico-BTS hO<;lcBTS da s6ng mang vung nh6 thlcong suat quy dinh trong Bang 24 phai cao hO'n4 dB khi do ki~m v&i dQ I$ch clla bQt<;10nhieu la 400 kHz.Doi v&i cac kenh chuy~n m<;1chg6i va cac kenh ECSD di@uch~ SPSK, tin hi$u mongmuon phai la (X - 9 dB + Ir) v&i "X" la cong suat quy dinh trong Bang 24 va "Ir" la ty-so nhieu d6ng kenh dU'Q'cquy dinh trong Bang 2S. Doi v&i cac kenh chuy~n m<;1chgoi di@uch~ QPSK, 16-QAM va 32-QAM v&i nhieu kenh Ian c~n 200 kHz, tin tin hiE~Umong muon phai la (X + 9 dB + lar) v&i "X" la cong suat quy dinh trong Bang 24 va"Iar" la ty-so nhieu dU'Q'cquy djnh trong Bang 29.

Doi v&i cac kenh & ch~ dQ VAMOS, v&i kich ban do VUTS-2 kenh VAMOS phl,l 2phai co muc cong suat la (X + 9 dB + Ir) v&i "X" la cong suat quy djnh trong Bang 24va "Ir" la tY s6 nhieu tren s6ng mang dU'Q'cquy djnh trong Bang 30, trU'cynghQ'pBTSda s6ng mang vung nh6 thi ap dl,lng Bang 31. Kenh VAMOS phl,l 1 phai c6 muc congsuat tU'O'ngung v&i kenh VAMOS phu 2 tuy theo gia trj SCPIR_UL trong Bang 30.

Ban 24 - MLPetrun binh ella tin hieu vao dc3ivai do ki~m mLPenhi~u ehu~nLoai BTS MLPetrun binh ella tin hieu do ki~m t&i RX

GSM 900 / DCS 1 SOO -S4 dBm-------_ _ _._.__ _._ __ _.-- .._- _-- __ _ _-_ _---

GSM 900 micro-BTS M1 -77 dBm..._---_ ...•..._--_.__ .-..__._ ..._----_ ..._ ..._ .._._-~.~---_._._.._._--GSM 900 micro-BTS M2 -72 dBm

47

-78 dBm

-70 dBm (*)

QCVN 41:2016/BTTTT

Loai BTS MLPetrun binh ella tin hieu do ki~mtai RXGSM 900 micro-BTS M3 -67 dBm•... _ ... _ ... ._.H •••.. _._ .•••.. __ .. ••_._ ... .•.•••.•.... ...• _._ .•• . ._ •••.. • .__ ••• . . . ..•• ' __ .,_, .__ .• ... __

....~~f0.-~ggJ2~Q=-'?I~...EL__________. . _ ..__ ... .__ -=-~?~J?m_C.L. ...__ ....._ .._. ..DCS 1 800 micro-BTS M1 -82 dBm

-- •••••• ------- •••• -.-.- ••• ---.---.-- •• --.--- ••• - •••• --.-- ••• --- .H ••••• •••• H. •• •• ._ •• __ • •• __ ••• __ • • _

DCS 1 800 micro-BTS M2 -77 dBm- ••••• _ ••••••••••••••••••• H ••••• ••••••••••••• _. __ •••••••• ---.- ••••• ----- •• _ ••• __ • •• H.H. __ ••• _._ ••••••• __ ._. ._ •••••• __ ••••••• •••••• __ • __ • • ._. __ • __ • ._

DCS 1 800 micro-BTS M3 -72 dBm------_.__ ._ _-_._-_._---_. __ .._~.__ .._----_. __ ._--._ _._._ .._.__ __._-------_._ .•_----_ _--_. __._-~_._-_._-

.Qg~_.1_?g9_~_~g_=!?_I~_E_1__ . .__ .._.._...... __.__ -Z~dBm L1.~ ._ .. _GSM 900 / DCS 1 800 da -84 dBm

. s6':!g_~_9.~g-Y.Q.Q9_!:.2!.:l_9 ..._ ..._._._._.. .._. . _GSM 900 / DCS 1 800 da

_~~!.:l_gm ~!2g_.Y.Q!!gJ.r_~~g__b in h__GSM 900 / DCS 1 800 dason man vun nho.CHU THICH (*): mCPc cong suat phai tang 4 dB doi v6'i cac phep do thl,l'c hi$n v6'i d(> I$ch clla b(>t90 nhieu ban 400 kHz.

Tin hi$u nhieu phai la tfn hi$u lien tl,1cva co di~u ch~ GSM b~ng m(>t chuai bit giangau nhien khang co ph~n giii'a khe (midambJe). N~u TRX ha trO' 8-PSK, 16-QAM va32-QAM t<;:l;t6c d(> ky hi$u binh thLP6'ngthi TRX phai dLPO'cdo ki~m b~ng tfn hi$unhieu co d;~u ch~ GMSK va tfn hi$u nhieu co di~u ch~ 8-PSK, trlf khi chCmg minhdLPO'cchI c~ndo ki~m b~ng tfn hi$u nhieu co di~u ch~ GMSK ho~c 8-PSK.

N~u tfn hi$u mong mu6n co t6c d(>ky hi$u cao hO'n thl TRX phai dLPO'cdo ki~m v~chI tieu nhieu kenh Ian c~n (200 kHz) vai tfn hi$u nhieu & t6c d(>ky hi$u cao hO'n, sudl,1ngcung ki~u di~u ch~ va b(>loc sua d<;:lngxung nhLPtfn hi$u mong mU6n, con chItieu nhieu kenh Ian c~n (400 kHz) phai dLPO'cdo ki~m vai tin hi$u nhieu di~u ch~GMSK va vai tfn hi$u nhieu di~u ch~ 8-PSK. N~u TR khang ho trO' 8-PSK thi TRXphai dLPO'cdo ki~m b~ng tfn hi$u nhieu di~u ch~ GMSK. 86i vai SFH, tfn hi$unhieunay phai g5m ho~c /a m(>ttin hi$u nhay d5ng b(>vai khe th6'i gian dang do ki~m ho~cm(>t s6 ngu5n tfn hi$u t~n s6 c6 dinh. a tru6'ng hO'p sau, s6 ILPO'ngcac ngu5n nhieuquy~t dinh s6 ILPO'ngcac t~n s6 ma khe th6'i gian dang do ki~m co th~ nhay trongdi~u ki$n ma; tru6'ng do ki~m, khang c~n quan tam v~ giai h<;:lntren cua BTS.

86i vai cac kenh chuy~n m<;lchgoi chI c~n do ki~m BITI khang co PAN.

Khi do ki~m ~ac kenh dLPQ'cdi~u ch~ 16-QAM, 32-QAM (ea t6c d(>thLP6'ngva t6c d(>cao) va QPSK phai su dl,1ngTSC-6 cho tin hi$u mong mu6n.

86i vai cac kenh chuy~n m<;:lchkenh di~u ch~ GMSK, ngo<;:litrlf cac kenh trong ch~d(> VAMOS, vi$c do ki~m phai dLPO'cthllc hi$n vai cac d(> I$ch t~n s6 clla tfn hi$unhieu so vai tin hi$u mong mu6n va mCPc cang su~t clla tin hi$u nhieu tren tfn hi$umong mu6n nhLPquy dinh t<;liBang 25.

86i vai cac kenh chuy~n m<;lchgoi va ECSD, vi$c do ki~m phai dLPQ'cthllc hi$n vaicac dQ I$ch t~n so clla tfn hi$u nhieu so vai tfn hi$u mong mu6n, ty s6 tfn hi$u songmang tren nhieu va ty so nhieu dong kenh (C/lc) nhLPquy dinh trong Bang 26. Ty s6nhieu dong kenh nho nh~t (C/lc) doi vai tat ca to hQ'pclla 10<;1i kenh logic va di~u ki$ntruy~n Ian dLPQ'cquy dinh t<;:liBang 28.

80i vai cac kenh trong ch~ dQ VAMOS, vi$c do kiem phai dLPQ'cthllc hi$n thea kichban do kiem trong Bang 23 vai ty so tfn hi$u tren nhieu quy djnh t<;:liBang 30. 86i vaiBTS da song mang thi ap dl,1ngBang 31.

QCVN 41:2016/BTITT

cokh6ng

-5 dB

-37 dB

pico-BTS va BTS Pha dinh c~a tina song mang vung hi~u nhieu

nhe>

-9 dB

-41 dB

200 kHz

400 kHz

£>(>I~ch clla cactin hi~u nhieu:

TrlJ'ang hQ'p co nhay tan ch~m (SFH) thl tin hi~u nhieu phai tren cung ARFCN nhl.l'tin hi~u mong mu6n tren phan h[Pu fch clla cl,Jrnkhe thai gian. 86i VITi BTS thU'cyngva micro-BTS thl chi can do kiem a dieu ki~n truyen Ian da dU'cyngTU50 (kh6ngSFH) va d6i VITi pico-BTS thl chi can do kiem a dieu ki~n truyen Ian da dLl'cyngTIS(kh6ng SFH).

Bang 25 - Lo~i be>nhieu kenh Ian c~n d6i v&i cac kenh chuy~n m~chkenh ngo~i triP ECSD

T' 56 tin hieu sonBTS thU'ang, micro-BTS, BTS da songmang vung r(>ngvavun trun binh

Bang 26 - Ty 56 nhieu kenh Ian c~n d6i v&i cae kenh chuylm m~ch goi va CaGkenh ECSD

coco

Pha dinhella tinhi~unhi~u

Ban 29Cllc - 48 dB

Ty 56 tin hi~u s6ngmang tren nhi~u

16-QAM va QPSK,16-QAM32-QAM vai t6c dQ va 32-QAM .vai t6cky hi~u binh thU'cYng dQkY hi~u cao

8-PSK

Ki~u di~u ch~clla tin hieu.,mong muon

J:'\~ I~ h' , Ty 56 tin hieu"1:.10 ec cua cae , . ~t'" h'~ h'::' song mang trenIn I~U n leu. nhi~u

200 kHz Ban 29400 kHz ellc - 50 dB

Ty 56 tin hi~us6ng mang tren

nhi~uBan 29

C/lc - 44,5 dB(QPSK)

Cllc - 43 dB(16-QAM)

C/lc - 42,5 dB32-QAM

£)6i v6'i cac kenh dU'Q'cdieu ch~ QPSK, 16-QAM va 32-QAM co t6c dQ cao, khi dokiem kenh Ian cc;in(400 kHz) thl tin hi~u mong mu6n phai di qua bQ IQc sua d,;mgxung bang rQng. £)6i v6'i trLl'ang hQ'p do kiem kenh Ian c~n (200 kHz) thl tin hiE~Urnong mu6n phai di qua bQ IQcsua d,;mg xung theo Bang 29.

£)6i v6'i cac kenh a ch~ dQVAMOS thl thai gian va dQ I~ch tan s6 phai ap dl,Jngv6'ikenh VAMOS phl,J1 tU'ang CrngVITikenh VAMOS phl,J2. Cac dQ I~ch phai la dQ fe)ngCl,JmdU'Q'cap dl,Jngva I~y hl' chuoi mau phu hQ'pVITiphan b6 xac xuM trong phuangtrinh 3.3.7a d6i v6'i dQ I~ch thai gian va phU'ang trinh 3.3.7b d6i v6'i de) I~ch tan s6.

Bang 27 - Cac tham 56 phan b6 xac su~t

90045 Hz10 Hz

1 80090 Hz17 Hz J

. _.~.•...

49

QCVN 41:2016/BTTTT

(0,25 d6i v&i dt) l~eh thai gian = -1, cae ehu ky symbol thtremg

edA IA h h" . ) = ~ 0,5 d6i vai dt)l~eh thai gian = 0, cae ehu ky symbol thtremg (3.3.7a)p 0 ee t en gwn 25 ot'" ,. otA IA h h". l' h k' b I h '. . 0, uOLVO'luQ ~e t O'Lgwn = ,cae e u y sym 0 t trO'ng

l 0, tTtremg hQ7Jkhae

. 1 -(d9l~ch tan si5-j1.) 2

p(d91~ch thai gian) = ()~ e 2cr2 (3.3.7b)

CHU THICH: co th~ Stf dl,lng bM ky chu6i mau nao dap Cmg cac tieu chi nay.

Bang 28 - Ty s6 nhi~u dang kenh (Cllc) d6i v&i cac kenh chuy~n m<;lchgoi vacac kenh ECSD

GSM 900

Ty s6 tin hi,?u song mangl nhi~u d6i v&iLO<;likenh DO'n vi cac di~u kien truy~n Ian xac dinh

TU50 .

TIS(khong SFH) (khong SFH)

PDTCH/MCS-5 dB 15,5 19,5PDTCH/MCS-6 dB 18 22PDTCH/MCS-7 dB 24 28PDTCH/MCS-B dB 30 34PDTCH/MCS-9 dB 33 37E-TCH/F43,2 NT dB 19,5 23,5E-TCH/F32,0 T dB 17 21E-TCH/F28,B T dB 17,5 21,5E-TCH/F28,8 NT dB 14,5 18,5CHU THIGH: Cac ty s6 Un hi$u song_mang/nhieu trong bang nay chi Stf dl,Jngd~ Unh mCrc Un hi$umonq muon Stf dunq cho chi tieu nhieu kenh Ian c<;ln.

DCS 1 800LO<;likenh DO'n vi Ty so tin hi,?u song mangl nhi~u doi v&i

cac di~u kien truyfm Ian xac dinhTU50 TI5

(khong SFH) (khong SFH)PDTCH/MCS-5 dB 15 19,5PDTCH/MCS-6 dB 17,5 22PDTCH/MCS-7 dB 26 28PDTCH/MCS-8 dB 25 ** 34PDTCH/MCS-9 dB 29 ** 37E-TCH/F43,2 NT dB 19,5 23,5E-TCH/F32,0 T dB 16 21E-TCH/F28,8 T dB 16 21,5E-TCH/F28,8 NT dB 14 18,5-CHU THICH 1: Hoat dong tai mCrc BLER 30% dLl'Q'cdanh dtJu la (**).

CHU THICH 2: Cae ty s6 Un hi$u song mang/nhieu trong bang nay chi stY dl,Jng d~ tinh mCPctin hieumong mu6n stY dung cho chi tieu nhieu kenh Ian c$n.

50

QCVN 41:2016/BTTTT

Bang 29 - Ty s6 nhi~u kenh Ian c~n (C/la) d6i vai cac kenh EGPRS, EGPRS2va ECSD

GSM 900Ty so tin hi~u song mangl nhi~u doi vai cac

Lo<;tikenh BO'n vidi~u kien truv~n Ian xac dinh

TU50 TI5(khong SFH) (khon~ SFH) Chu giai

PDTCH/MCS-5 dB -2 2PDTCH/MCS-6 dB 1 5PDTCH/MCS-7 dB 8,5 12,5PDTCH/MCS-8 dB 9** 13**PDTCH/MCS-9 dB 13,5** 17,5**PDTCH/UAS-7 dB 9,5 13,5PDTCH/UAS-8 dB 11 15PDTCH/UAS-9 dB 13,5 17,5PDTCH/UAS-10 dB 17 21PDTCH/UAS-11 dB 23,5 27,5PDTCH/UBS-5 dB -16,5 -12,5 Cac tin hi~u d~uPDTCH/UBS-6 dB -14,0 -10,0 vao dU'Q'c t<;10PDTCH/UBS-7 dB -9,5 -5,5 bang bQ IQc suaPDTCH/UBS-8 dB -6,0 -2,0 d<;1ngxung bangPDTCH/UBS-9 dB -3,5 0,5 rQngPDTCH/UBS-10 dB 1,0 5,0 (xem chu thich 2:)PDTCH/UBS-11 dB 9,0 13,0PDTCH/UBS-12 dB 13,5 17,5PDTCH/UBS-5 dB -14,0 -10,0 Cac tin hi~u d~uPDTCH/UBS-6 . dB -11,0 -7,0 vao dU'Q'c t<;10PDTCH/UBS-7 dB -2,5 1,5 bang bi? IQc suaPDTCH/UBS-8 dB 0,5 4,5 d<;1ngxung bangPDTCH/UBS-9 dB 2,0 6,0 h~pPDTCH/UBS-10 dB 9,0 13,0 (xem chu thich 2)PDTCH/UBS-11 dB 13,0 17,0PDTCH/UBS-12 dB 14,5 18,5 .

E-TCH/F43,2 NT dB . 3,5 7,5

E-TCH/F32,0 T dB -2,5 1,5

E-TCH/F28,8 T dB 0,5 4,5

E-TCH/F28,8NT dB -1,5 2,5

CHU THlCH 1: HO<;ltdQng t<;liml1c BLER 30% dU'Q'cdanh d~u la (**).CHU THICH 2: Cac yeu cau PDTCH/UBS-5 d~n 12 ap dl,mg d6i v6'i cau hlnh 2 ang ten. Tin hi$u nhii\uphai SLY dl,mg toc dQ ky hi$u cao va dU'O'ct<;lora v6'i cung kieu di~u ch~ va b(> loc sLYa d<;!ngxung nhU'tin hi$u monq muon.

DCS 1 800Ty so tin hi~u song mang/ nhi~u doi vcYicae

Lo<;tikenh BO'n vidi~u kien truy~n Ian xae dinh

TU50 TI5(khong SFH) (khonQ SFH) . Chu giai

PDTCH/MCS-5 dB -2 2

51

QCVN 41:2016/8TTTT

Bang 30 - Ty so tm hl~u s6ng mang/nhleu dOl VO'lcac kenh trong che d9VAMOS

Des 1 800Ty s6 tin hi~u s6ng m,angl nhieu d6i v&i cac

Lo~ikenh fJO'nvi .di~u kien truyen Ian xac dinhTUSO TIS

ChLi giai(khong SFH) (khong SFH)PDTCH/MCS-6 dB 1,5 5PDTCH/MCS-7 dB 10,5 12,5PDTCH/MCS-8 dB 10** 13**PDTCH/MCS-9 dB 16** 17,5**PDTCH/UAS-7 dB 9,5 13,5PDTCH/UAS-8 dB 12 15PDTCH/UAS-9 dB 15,5 17,5PDTCH/UAS-10 dB 24,5 21PDTCH/UAS-11 dB 20,5** 27,5PDTCH/UBS-5 dB -13,0 -12,5 Cac tfn hi~u d~uPDTCH/UBS-6 dB -10,0 -10,0 VaG dl1'Q'c t?OPDTCH/UBS-7 dB -5,5 -5,5 b~ng bQ IQc seraPDTCH/UBS-8 dB -2,0 -2,0 d?ng xung bangPDTCH/UBS-9 dB 1,5 0,5 fQngPDTCH/UBS-10 dB 5,0 5,0 (xem chD thfch 2)PDTCH/UBS-11 dB 14,.5 13,5PDTCH/UBS-12 dB 20,0 17,5PDTCH/UBS-5 dB -10,0 -10,0 Cac tfn hi~u d~uPDTCH/UBS-6 dB -6,5 -7,5 VaG dl1'Q'c t?OPDTCH/UBS-7 dB 2,0 1,5 b~ng bQ IQc seraPDTCH/UBS-8 dB 5,0 4,5 d?ng xung bangPDTCH/UBS-9 dB 7,0. 6,0 h~pPDTCH/UBS-10 dB 14,0 13,0 (xem chD thlch 2)PDTCH/UBS-11 dB 12,5** 17,0PDTCH/UBS-12 dB 14,0** 18,5E-TCH/F43,2 NT dB 4 7,5E-TCH/F32,O T dB -3,5 1,5E-TCH/F28,8 T dB -0,5 4,5E-TCH/F28,8NT. dB -2 2,5CHU THICH 1: HO<;ltdong t<;l;muc BLER 30% dU'Q'cdanh dau la (**).

CHU THICH 2: Cac yeu c~u PDTCH/UBS-5 den 12 ap dl,lng deS;va; cau hinh 2 ang ten. Tfn hi$u nhieupha; SLPdl,lng toe dO ky hi$u cao va dU'Q'Ct<;lOra vai cung ki~u dj~u che va bo loc sLPad;;'lngxung nhU'Un hi$u mong mueSn.

> > - - _. - . - ~ - -

Ty s6 tin hi~u s6ng mang/nhi~u(CJl1) 6,6i v&i cae klch bim 60 trong

Lo~i kenh DO'n vj SCPIR_UL (dB) dieu ki~n truyen Ian TU50(khong SFH)

VUTS-2GSM 900.- DeS 1 800

TCH/HS dB a -6,5 -5,5TCH/EFS dB a -3,5 -3,5TCH/AFS 12,2 dB a -4,5 -4,5

52

QCVN 41:2016/BTTTT

Ty 56 tin hi«%us6ng mang/nhi~u(CII1) d6i vo-i cae klch ban do tronu

Lo~i k€mh DO'nvl SCPIR_UL (dB)di~u t{i«%ntruy~n Ian TU50

(kh6ng SFH)

VUTS-2GSM 900 DCS 1 800

TCH/AFS 4,75 dB a -12,5 -14TCH/AHS 7,4 dB 0 -1 -1TCH/AHS 4,75 dB 0 -7,5 -7,5TCHIWFS 12,65 dB a -4 -4TCHIWFS 6,60 dB 0 -11 -11FACCH/F dB 0 -8,5 -8,5FACCH/H dB 0 -8,5 -8SACCH. dB 0 -7,5 -7SACCH I~p dB a -14,5 -15TCH/HS dB -10 -8 -6,5TCH/EFS dB -10 -7 -5TCH/AFS 12,2 dB -10 -7,5 -6TCH/AHS 7,4 dB -10 -3 0,5TCHIWFS 12,65 dB -10 -6,5 -5IcHU THicH: 11tLfO'nq (rnq v&i CDnq su<flt clIa kenh Ian c?n 1.

Bang 31 - Ty 56 tin hi~u s6ng mang/nhi~u d6i v&i cac kenh trong ch~ de}VAMOS trong di~u kil%ntruy~n Ian TI5 (khong SFH)

Ty 56 tin hi«%us6ng mang/nhi~u(CII1) d6i vo-i cae klch ban do tron!a

Lo~i k€mh DO'n vl SCPIR_UL (dB)di~u ki«%ntruy~n Ian TIS

(kh6ng SFH)

VUTS-2GSM 900 DCS 1 800

TCH/HS dB a -0,5 0,5TCH/EFS dB 0 2,5 2,5TCH/AFS 12,2 dB 0 1,5 1,5TCH/AFS 4,75 dB 0 -6,5 -8TCH/AHS 7,4 dB 0 5 5TCH/AHS 4,75 dB 0 -1,5 -1,5TCHIWFS 12,65 dB a 2 2TCHIWFS 6,60 dB 0 -5 -5FACCH/F dB a -2,5 -2,5FACCH/H dB a -2,5 -2SACCH dB 0 -1,5 -1SACCH I~p dB a -8,5 -9TCH/HS dB -10 -2 -0,5TCH/EFS dB -10 -1 1TCH/AFS 12,2 dB -10 -1,5 0TCH/AHS 7,4 dB -10 3 6,5TCHIWFS 12,65 dB -10 -0,5 1CHUTHicH: 11tU'O'nq (rnq v&i CDnq suat cGa kenh Ian can 1.

Tat ea cae TRX trong cEIUhinh eua BTS phai dlfQ'C b~t va phat du eong sucftt tren tatca cac khe thai gian.

Tin hi~u dau vao trlfO'C khi ma h6a kenh trong BSSTE phai dlfQ'C so sanh v&i tin hii~Uthu dlfQ'C tll' may thu eua BTS sau khi giai ma kenh.

53

'eeM,speb

- .•.•..

.-"''',,''-'''-''''''

QCVN 41 :2016/BTTTT

3.3.7.2. Moi trU'ang doMoi trU'cmg blnh thU'cmg.

3.3.8. f)~c tinh ch~n

3.3.8.1. Thu tyc do ki~m

Nha san xu~t phai khai bao cac tan s6 trung gian (bl' IF1 t6'i IFn) SLrdVng cho RX vatan s6 clla bQ t'?Odao dQng nQi dung cho bQtrQn cua may thu thlf nh~1.

1) Thu tvc do ki~m dU'O'cthl.l'c hi$n theo 3 bU'6'c:a) Do ki~m sa bi) tuy chQn d~ nh$n d,?ng cac tan s6 clla tin hi$u nhieu can dU'O'c

nghien ClfU ky han.b) Do d~c tlnh ch~n: tM ca cac tan s6 ngoai bang (cac yeu cau chung d6i v6'i BTS

nhi~u bang tan).c) Do chi tieu dap lfng t'?P, phep do nay chi can thl.l'c hi$n t<;licac tan s6 cua tfn hi$u

nhieu ma t,?i do khong d'?t dU'O'cd~c tlnh ch~n.2) BTS phai dU'O'cc~u hlnh d~ lam vi$c cang gan v6'i phan trung tam cua bang tan

thu cang t61. N~u BTS thuQc nhom BTS da song mang co bQ thu da s6ng mangthl ap dl,mg c~u hlnh trong mvc B.2.1 O. N~u BTS he trO' SFH thl phai tat FSHtrong qua trlnh do ki~m.

3) Vi$c do ki~m dU'O'cthl.l'c hi$n & c~u hlnh do tuy thuQc vao ki~u may thu:a) D6i v6'i tM ca cac ki~u may thu, tru BTS thuQc nhom BTS da song mang co maythu da s6ng mang, hai tfn hi$u RF dU'O'cdU'a t6'i dau n6i ang ten RX cua BTS quam,?ng ph6i ghep. Tfn hi$u mong mu6n phai la Un hi$u da di~u ch~ GSM thU'6'ng t,?itan s6 cong tac clla RX va co cac mCfccong su~t theo Bang 32, 33, 34. Vi$c do ki~mchi thl.l'c hi$n trong di~u ki$n truy~n Ian tTnh.b) TrU'6'ng hO'p do ki~m BTS thuQc nhom BTS da s6ng mang vung rQng va vungtrung blnh va dU'O'ctrang bi may thu da song mang, s6 IU'O'ngtin hi$u mong mu6nnhi~u nhM ho~c 4, tuy theo s6 nao nh6 han, va tfn hi$u ch~n phai dU'O'cdU'a vao daun6i ang ten thu cua BTS qua m,?ng ph6i ghep. TrU'6'ng hO'pdo ki~m BTS thuQc nhomBTS da song mang vung nh6 dU'O'ctrang bi may thu da song mang, s6 IU'O'ngtfn hi$umong mu6n nhi~u nh~t ho~c 2, tuy theo s6 nao nh6 han, va tfn hi$u ch~n phai dU'O'cdU'a vao dau n6i ang ten thu cua BTS qua m,?ng ph6i ghep. Cac tfn hi$u mong mu6nphai dU'O'c trai d~u tren bang thong RF l6'n nh~t clla may thu. Mei Un hi$u mongmu6n phai SLPdvng di~u ch~ GSM thU'6'ng v6'i mCfccong su~t Un hi$u quy djnh trongBang 32, 33, 34 t,?i dau vao thu. N~u khong co yeu cau nao quy dinh trong Bang 36d6i v6'i Sl.l' k~t hO'p v~ cong suM tfn hi$u nhieu va dQ I$ch tan s6 giCfa tfn hi$u nhieuva tfn hi$u mong mu6n, thl khi danh gia co th~ lo,?i dCf Ii$u do dU'O'cd6i v6'i cac tfnhi$u mong mu6n tU'O'nglfng. Sl.l' phan b6 tan s6 trung tam trong bang thong RF cuatr~m g6c dU'O'cthl.l'c hi$n theo mvc B.2.10, ngo,?i tru cac phep do ch~n ngoai bangma t,?i d6 co kha nang sap x~p trung tam bang thong RF clla BTS cang gan v6'i tans6 trung tam clla bang tan hO'?tdQng.Chat IU'O'ngcua tin hi$u mong mu6n cOng d<Sngth6'i dU'O'cghi 19i.L~p I,?i phep do den khi do ki~m dU'O'cmCfc nhieu co th~ ap dvng dU'O'ctrong Bang36.

N~u BTS he trO' ca EGPRS va ECSD thl khong can thi~t phai do ca hai ch~ dQ. N~uBTS khong he trO' TCH/FS thl phai do ki~m muc he trO' cao nh~t cua PDTCH/MCS-1den MCS-4.

Khong can quan tam d~n cac kenh logic dU'O'che trO', khi do ki~m cac tan s6 ch~nngoai bang thl chI can do kiem cac kenh dieu ch~ GMSK.

54

QCVN 41:2016/BTTTT

Bang 32 - MLPecong su~t ella tin hi~u mong mu6n d~ do ki~m d~e tinh eh~nella TCH/FS va PDTCH/MCS-5-9

._-

Mlve cong suM eua tin hi~u mang mu6n, dBm

La~iBTS TCH! POTCH! POTCH! POTCH! POTCH! POTCH!FS MCS-5 MCS-6 MCS-7 MCS-8 MCS-9

GSM 900 I DCS 1 800 -101 -98 __ -96,L. -93 -90 __ ::~?,5 __._---- _ .._._---- ._-_._ .._-_. __ ...•. _._. __ •• M __ •

GSM 900 micro-BTS M1 -94 -91 -89,5____ -86 -83 _ -81!_~._.~--- _ ..._-_._- ._._.._---_._.-

GSM 900 micro-BTS M2 -89 -86 ~1L -81 -78 -=I.6,5 --_._--_.- ---- .---_._-

GSM 900 micro-BTS M3 -84 -81 -79,5 -76 -73 -71,~__- ._..__ .

GSM 900 pica-BTS P1 -85 -82 .-80L -93 -74 -72,5f---.-- ...._----_.-

DCS 1 800 micro-BTS M1 -99 -96 .-945 -91 -88 -86,5._-- ' ..- _.__ ._...-----,---

DCS 1 800 micro-BTS M2 -94 -91 -89,5 -86 -83 -8.:l-L~_.-- --DCS 1 800 micro-BTS M3 -89 -86 -845 -81 -78 _-76,5 __

- ---' ---- .-----

DCS 1 800 pica-BTS P1 -92 -89 -87,5 -84 -81 _:7.9,5 --- -----

GSM 900 I DCS 1 800 da -101 -98 -96,5 -93 -90 -88,5~g mang vung rQng .1-----. . -- ._.--

GSM 900 / DCS 1 800 da -95 -92 -90,5 -87 -84 -82,5~g mang vung trung binh -- --

GSM 900 / DCS 1 800 da -87 -84 -82,5 -79 -76 -74,5sonq mana vuna nh6

Bang 33 - MLPCcong su~t ella tin hi~u mong mu6n d~ do ki~m d~c tfnh eh~nclIa cac kenh ECSD

La~iBTS Mlve eong su~t eua tin hi~u mang mu6n, dBm

E-TCH/F43,2NT E-TCH/F32,aT E-TCH/F28,8T E-TCH/F28,8NT

GSM 900 / DCS 1 800 -94 -101 -96,5 -97

GSM 900 micro-BTS M1 -87 -94 -89,5 -90

GSM 900 micro-BTS M2 -82 -89 -84,5 -85

GSM 900 micro-BTS M3 -77 -84 -79,5 -80

GSM 900 pica-STS P1 -78 -85 -80,5 -81

DCS 1 800 micro-BTS M1 -92 -99 -94,5 -95

DCS 1 800 micro-BTS M2 -87 -94 -89,5 -90

DCS 1 800 micro-BTS M3 -82 -89 -84,5 -85

DCS 1 800 pica-BTS P1 -85 -92 -87,5 -88

GSM 900 / DCS 1 800 da -94 -101 -96,5 -97

sonq mana vuna rQnqGSM 900 / DCS 1 800 da -88 -95 -90,5 -91

sonq manq vunq trunq binhGSM 900 I DCS 1 800 da -80 -87 -82,5 -83

sonq manq vunq nho

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QCVN 41:2016!BTTTT

Bang 34 - MLPCcong su~t cua tin hi~u mong mu6n d~ do ki~m d~c tinh ch~ncua POTCH!MCS-1-4

Lo~iBTS MLPCcong su~t cua tin hi~u mong mU6n, dBmPOTCH! POTCH! POTCH! POTCH!MCS-1 MCS-2 MCS-3 MCS-4

GSM 900 I DCS 1 800 -101 -101 -101 -98,5GSM 900 micro-BTS M1 -94 -94 -94 -91,5GSM 900 micro-BTS M2 -89 -89 -89 -86,5GSM 900 micro-BTS M3 -84 -84 -84 -81,5GSM 900 pico-BTS Pi -85 -85 -85 -82,5DCS 1 800 micro-BTS M1 -99 -99 -99 -96,5DCS 1 800 micro-BTS M2 -94 -94 -94 -91,5DCS 1 800 micro-BTS M3 -89 -89 -89 -86,5DCS 1 800 pico-BTS Pi -92 -92 -92 -89,5GSM 900 I DCS 1 800 dasong mang vung rQng -101 -101 -101 -98,5

-'GSM 900 I DCS 1 800 dasonl] manq vunq trung binh -95 -95 -95 -92,5GSM 900 I DCS 1 800 dasong mang vung nh6 -87 -87 -87 -84,5

£)0 ki~m sO' b(>

4) 80 kiem tuy chQn nay dU'Q'cthl!c hi~n nham ml)C dfch giam bat s<3phep do yeuc~u t9i bU'ac 8). N~u thl!c hi~n phai do t9i cac t~n s<3chi ra dU'ai day. Phep do naykhong ap dl:mg d<3ivai BTS thuQCnhom BTS da song mang co bQthu da song mangkhi do kiem cac t~n s<3ch$n trong bang. TrL1'anghQ'p BTS thuQc nhom BTS da songmang co bQ thu da song mang, n~u thl!c hi~n do kiem thl phai thl!c hi~n thu va danhgia dang thai vai s6 1U'Q'ngcac tin hi~u mong mu<3nnhU' mo ta trong bU'ac 3b) khi dokiem cac t~n s<3ch$n ngoai bang.5) 80 kiem dU'Q'c thl!c hi~n cho mQt tin hi~u nhieu t9i mQi t~n s6 la bQi s6 clla200 kHz va nam trong mQt ho$c nhi~u bang t~n s<3dU'Q'cli~t ke (y dU'ai day, nhU'ngkhong bac: gam cac t~n s6 Ian han 12,75 GHz ho$c nh6 hO'n600 kHz so vai tfn hi~umong muon.

a) Dai t~n:

P-GSM 900: TCP790 MHz d~n 1015 MHz.

E-GSM 900: Tu 780 MHz d~n 1015 MHz.

DCS 1 800: Tu 1 610 MHz d~n 1 885 MHz.

b) P-GSM 900, E-GSM 900:

Tu Flo - (IF1 + IF2 + ... + IFn + 12,5 MHz) tai

Flo + (IF1 + IF2 + ... + IFn + 12,5 MHz).

DeS 1 800:

Tu Flo - (lF1 + IF2 + ... + IFn + 37,5 MHz) tai

Flo + (IF1 + IF2 + ... + IFn + 37,5 MHz).

56

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QCVN 41:2016/BTTTT

c) Tll' IF1 - 400 kHz t6'i IF1 + 400 kHz

Tru'cYnghqp BTS thuoc nhom BTS da song mang co may thu da song mang:

IF1 - RFBWMaxl2- 200 kHz d~n IF1 - RFBwMax/2+ 200 kHz

d) T~t cckac dai:

TLr mFlo - IF1 - 200 kHz t6'i mFlo - IF1 + 200 kHz; va

tLr mFlo + IF1 - 200 kHz t6'i mFlo + IF1 + 200 kHz.

e) Cac boi s5 clla 10 MHz

Trang do:

Flo: T~n s5 clla bo dao dong noi dung cho bOtron thlr nhM

IF1 + IFn: La n t~n s5 trang khoang giO'a trang ph~n s5 va ph~n tU'ang tl;l'clla maythu.

m: Cac s5 nguyen dU'O'ng

RFBWMax: bang thong RF l6'n nh~t clla BTS.

£)~ giam th6'i gian do ki~m, co th~ SLrdl:mg cac thll tl,lCrut gqn. Trang trU'6'ng hQpnay phai thl;l'c hi$n theo cac thll tl,lCtheo Phl,lll,lc A clla ETSI TS 151 021 v6'i gi(yjh~n tren clia do ki~m la 4.GHz.

6) Tin hi$u nhieu la tin hi$u di~u t~n co t~n s5 di~u ch~ la 2 kHz va do di t~n dIn hbang ::1:100kHz.

7) £)5i v6'i cac dai t~n s5 :

P-GSM 900: TLr 870 MHz d~n 925 MHz.

E-GSM 900: TLr 860 MHz d~n 925 MHz.

DCS 1 800: TLr 1 690 MHz d~n 1 805 MHz.

Mlrc clia tin hi$u nhieu nam trang cac dai tren t~id~u VaGmay thu, trLr BTS thu()cnhom BTS da song mang co bOthu da song mang, phai la:

GSM 900: -3 dBm.

DCS 1 800: -15 dBm.

£)5i v&i cac tin hi$u nhieu tren cac t~n s5 khac thi mlrc tin hi$u nhieu phai la:

£)5i v6'i cac BTS trLr BTS thuoc nhom BTS da song mang co bO thu da songmang: +10 dBm.

BTS thuoc nhom BTS da song mang co bOthu da song mang: -9 dBm.

Phai do RBER d5i v6'i kenh TCH/FS dung bit lo~i \I va BLER d5i v6'i kenh hi) trqPDTCH/MCS-x v6'i x th~p nhM va di~u ch~ 8-PSK (x = 5 n~u BTS hi) trq tM ca c.kki~u ma hoa) valho$c kenh E-TCH/F43,2 NT ho$c BLER (ho$c BER) t~i t5c do cHi'li$u cao nh~t va n~u BTS kh6ng hi) trQ'TCH/FS thi do BLER d5i v6'i PDTCH/MCS-1d~n MCS-4 da dU'Q'cdo ki~m. Cac t~n s5, t~i do RBER > 10% valho$c BLER > 25%ho$c BER > 0,25% phai dU'qc ghi I~i d~ phan t1ch sau hO'n.TrQngs5 th5ng ke long coth~ SLrdl,lng trong phep do nay d~ so sanh v6'i bU'6'c9).

Do ki~m d~c t1nhch~n8) Neu da do ki~m sO'bo thi do ki~m nay phai dU'qc thl;l'c hi$n t~i t~t ca cac t~n 55

da dU'qc ghi I~i 6' bU'6'c 7). Neu chU'a do ki~m sO' bo thi do ki~m nay phai dU'q'c

57

. QCVN 41 :2016/BTTTT

thllC hi$n tc;:litat ca cac tan s5 a bU'ac 5). D5i vai BTS thuQc nhom BTS da songmang co bQ thu da song mang thi phai thllc hi~n phep do nay khi do kiem cac tans5 ch~n trong bang bat ke da thllC hi~n vi~c do kiem sa bQ hay chU'a.Tin h;$u nhieu phai kh6ng dU'O'cdi~u ch~ va co muc tc;:lidau vao RX nhU' trongBang 36 va 37.

9) Cac kenh trong Bang 18 n~u dU'O'cho trO' thl phai do kiem trLPcae tan s5 ch$nngoai bang la nO'i chTphai do cac kenh di~u ch~ bang GMSK. Tat ca cac tan 55ma t,?i d6 giai hc;:lntrong Bang 18 bj vU'qt qua phai dU'O'cghi Ic;:li.TrU'cmg hO'p BTSthuQc nhom BTS da s6ng mang c6 bQ thu da s6ng mang thl cac tan s5 nay phaidU'O'cgh; rieng cho tung tan s5 tin hi$u mong mu5n.85i va; cac kenh chuyen mc;:lchg6; thl cac phep do va yeu cau ap dl:mg cho BITIkh6ng co PAN.85i vai phep do nay, cac tan s5 trong bang dU'O'cdjnh nghTa nhU' Bang 35.

Bang 35 - Dinh nghia cac t~n 56 trong bang

Bang ffin GSM Dai t~n trong bang lien quan

P-GSM 900 870 MHz d~n 925 MHz

E-GSM 900 860 MHz d~n 925 MHz.

DCS 1 800 1 690 MHz d~n 1 805 MHz

PhU'ang phap do kiem BER pha; tuan thu Phl,Jll,JcA cua ETSI TS 151 021.

TrU'<yng hO'p BTS thuQc nhom STS da song mang c6 bQ thu da song mang thl thllchi$n do kiem co the dU'Q'Crut ngc1nbang cach do d6ng thai cac kenh logic khac nhautren cac s6ng mang khac nhau. Ty 1$ loi phai dU'O'cdanh gia rieng d5i vai tLPngtinhi$u mong mu5n va tren cung mQt khoang thai gian nhU' nhau d5i vai mQi tin hi$umong mu5n, dU'O'cxac dinh la khoang thai gian do kiem dai nhat cua mQt kenh logic.

fo la tan 55 cua tin hi$u mong mu5n.

Bang 36 - MLPCtin hi~u nhi~u de do d~c t1nh ch~n d6i v&i cac BTS tnR BTS dasong mang co may thu da song mang

GSM 900 (dBm) DeS 1 800 (dBm)

micro va r ieo-BTS micro va pieo-STSDai teln STS M1 M2 M3 P1 STS M1 M2 M3 P1

Tronq banq:f,,:t 600 kHz -26 -31 -26 -21 -34 -35 -40 -35 -30 -41800 kHz::;; If- fol < 1,6 MHz -16 -21 -16 -11 -34 -25 -30 -25 -20 -411,6 MHz ::;;jf- fol < 3 MHz -16 -21 -16 -11 -26 -25 -30 -25 -20 -313 MHz::;; If- fol -13 -21 -16 -11 -18 -25 -30 -25 -20 -23Nqoai banq 8 8 8 8 8 0 0 0 0 0CHU THfcH 1: f tham chieu den tfn hi$u chc;innhieu va fo tham chieu den tfn hieu mong mu6n dl1'Q'cdo kiem.

CHU THfcH 2: B6i v6'i BT$ thl!Qc nhom BTS da song mang vung rQng kh6ng co may thu da songmanq thJ ap dl,mq cac yeu cau d6i v6'i BTS.

58

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I'I

"QCVN41:2016/BTTTT

Bang 37 - MLPC tin hi~u nhi~u d~ do d~c tinh ch~n dBi vai cac BTS da songmang co may thu da song mang

Ban~ t~n GSM 900 (dBm) DeS 1 800 (dBm)

Nh6m STS da s6n~ man~ WA MR LA WA MR LA

Tronq banq:fo :t 600 kHz -35 -30 -22 -35 -30 -22

800 kHz :s;If- fol <1,6 MHz -25 & -16 -20 & -15 -12 &-7 -25 -20 -12

1,6 MHz :s;If- fol < 3 MHz -25 & -16 -20&-15 -12&-7 -25 -20 -12

-25 ho~e -20 ho~e

3 MHz:s; If- fo -16 -15 -12 ho~e-7 -25 -20 -12

Ngoai bang MCreehunq -15 -15 -15 -15 -15 -15

Co-sitinq 16 8 -6 16 8 -6

CHU THiCH 1: f tham chieu den tin hi$u ch~n nhieu va fo tham chieu den tin hi$u mong mu6n dlJ'Q'cdo kiem. TrlJ'6'ng hOOpco nhi~u hO'n mQt tin hi$u mong mu6n dlJ'OOcdo kiem thi mQt tin hi$u mongmu6n dlJ'OOcdo kiem fo tham chieu den tCrng tin hi$u mong mu6ri dlJ'OOcdo kiem nhlJ' ma ta trong blJ'o'c3b).CHU THicH 2: 86i v&i GSM 900, cac yeu du trong bang d6i v&i dQ I$ch 800 kHz :s; If-fol, cong SU;3tcila tin hi$u mong mu6n trong cac Bang 32, 33 va 34 co the tang len thea Bang 38. Cac yeu cau trongbang d6i v&i dQ I$ch If-fol 2: 3 MHz, muc tin hi$u nhieu phV thuQc vao tan s6 nhieu thea quy t~c sau:neu tan 56 nhieu la bQi 56 cua 400 kHz thi 5Lr dl,lng muc tin hi$u nhieu cao hO'n trong bang, con I;;lidung muc th~p hO'n.

Bang 38 - MLPC tang cua tin hi~u mong muBn (y GSM 900 dBi vai BTS da son~1mang co bQ thu da song mang

Vunq rQng Vung trunq binh Vunp nhe

MLPetin hi~u MLPetang ella MLPetin hi~u MLPetang MLPetin hi~u Mue tangtin hi~uplOng ella tin hi~u ella tin hi~ul

nhi~u muon nhi~u monq muon nhi~u monq muon

< -25 dBm +0 dB < -20 dBm +OdB < -12 dBm +OdB

> -25 dBm va > -20 dBm va > -12 dBm va:s;-20 dBm +5 dB :s;-15 dBm +5 dB :s;-7 dBm +9 dB

> -20 dBm va<-16dBm +9 dB - - - -

Doi vai P-GSM 900 va E-GSM 900 mLrc ch~n trong bang tCr925 MHz d~n 935 MHzdU'Q'cnai long v~ a dBm.

Do ki~m dap l'Png t~p

10) Thu b,.Icdo ki~m ki~m nay phai dU'Q'cthllc hi~n t~i t~t ca cac t~n so va cac kenhda dU'Q'cghi I~i (y bU'ac 9). Tfn hi~u nhieu phai kh6ng dU'Q'cdi~u ch~ va co mu'cla: -43 dBm. TrU'cmg hQ'p BTS thuQc nhom BTS da song mang co bQ thu erasong mang thi phep do nay phai dU'Q'cthllc hi~n vcYivi~c thu va danh gia dongthai cac tin hi~u mong muon nhU' m6 ta trong bU'cYc3b).

11) Phai do RBER clla TCH/FS dung cac bit lo~i II va BLER doi vai kenh he trQ'PDTCH/MCS-x v&i x th~p nh~t va di~u ch~ 8-PSK (x = 5 n~u BTS he trQ' t~t eacac ki~u ma hoa) va/ho$c BLER doi vai E-TCH/F43,2NT ho$c BLER (hoilcBER) doi vai toc dQ dCI'li$u cao nhM va n~u kh6ng ho trQ'TCH/FS thi do BLERdoi vai cac kenh PDTCH/MCS-1 d~n MCS-4 da dU'Q'cdo ki~m.

3.3.8.2. M6i trU'<Yng do

M6i trU'ang binh thU'ang.

59

QCVN 41:2016/BTTTT

3.3.9. Cac d~c tinh xuyen di~u ch~

3.3.9.1. Thu tl;JC do ki~m

N~u BTS ha trQ' SFH thl phai tat SFH khi do kiem. ChTdo trong cac di~u kj~n tTnh.Phai do t9i cac diem t~n s6 B, M va T clla cac kenh t~n s6 va cac kenh ha trQ' trongBang 32, 33 va 34. It nhat, phai do kiem mQt khe thai gian d6i v&i mQtTRX.

Ba tfn hi~u dU'Q'cdU'a t&i may thu qua m9ng ph6i ghep. Cong suat clla cac tin hi~udU'Q'cdo t9i d~u n6i ang ten RX.

Tfn hi~u mong mu6n co muc cong suat nhU' trong Bang 32, 33 va 34. ChTcac tinhi~u mong mu6n.v&i BTTI va khong co PAN m&i c~n do kiem.

Tfn hi~u thu 2 la mQt tin hi~u nhieu dLi'Q'cdi~u ch~ GMSK bang mQt chuai bit giangau nhien co tan s6 cao hO'n tan s6 clla tin hi~u mong mu6n la 1,6 MHz. Trongph~n hO'u fch clla Cl,JmthuQc tin hi~u mong mU6n, tin hi~u nhieu dU'Q'cdi~u ch~ bangchuai con 148 bit bat ky clla chuai 511 bit (Khuy~n nghi ITU-T 0.153 t~p IVA) va cocong suat bang -43 dBm d6i v&i GSM 900 va -49 dBm d6i v&i DCS 1 800.

CHO THfcH:Tfn hi$u nay co the la Un hi$u lien t1,lCdU'Q'cdi~u che b~ng chuoi 511 bit.

Tfn hi~u thu 3 la mQt tin hi~u nhieu va khong dU'Q'cdi~u ch~. T~n s6 tin hi~u nhieucao han tan s6 clla tin hi~u mong mu6n la 800 kHz va co eong suat bang -43 dBmd6i v&i GSM 900 va -49 dBm d6i v&i DCS 1 800.

Cae tfn hi~u khae nhau dU'Q'cminh hQa tren Hlnh 3.Gong suat (dBm)

GSM:-43dBmDCS1800: -49 dBm

Nhi~u Nhi~u

Nhl1trongBang 32

Tin hi$umong muon

Thanh phanxuyen dieu che

fO fo+800 kHz fo+1600 kHz

Hinh 3 - Vi dy v~ tri~t xuyen di~u ch~ cua RX

TrU'cmg hQ'p BTS thuQc nhom BTS da song mang co bQ thu da song mang thl haimuc tin hi~u nhieu phai giam ve 0 dB, +2 dB va +5 dB tU'O'ng ung v&i BTS vungrQng, vung trung blnh va vung h~p.

60

QCVN41 :2016/8TTTT

N~u BTS he trQ'ca EGPRS va ECSD thl khong can thi~t phai thl,l'c hi$n do ca hai ChE~dQ. N~u BTS khong he trQ'TCH/FS thl phai do kiem cac kenh cao nh<1tdU'Q'Che tr~)'til' PDTCH/MCS-1 d~n MCS-4.

Cac bit 10<;IiII khOng dU'Q'cbao v$ thu dU'Q'ctil' RX clla BTS sau giai ma kenh V;)

trU'Cyckhi ngo<;Iisuy phai dU'Q'cso sanh v&i cac bit 10<;IiII khong dU'Q'cbao v$ ban dautil' BSSTE.Phai do RBER clla TCH/FS dung cac bit 10<;IiII va BLER d6i v&i kenh he trq'PDTCH/MCS-x v&i x th<1pnh<1tva dieu ch~ 8-PSK (x = 5 n~u BTS he trQ' t<1tca cackieu ma hoa) va E-TCH/F43,2 NT hoi;ic BLER (hoi;ic BER) d6i v&i t6c dQ dO' li$u caonh<1tva n~u khong he trQ'TCH/FS thl do BLER d6i v&i cac kenh PDTCH/MCS-1 d~nMCSA da dU'Q'cdo kiem.

Phai li;ip l<;Iiphep do cho cac tan 56 clla tin hi$u khong mong mu6n th<1phan t<1n56song mang clla tin hi$u mong mu6n.

3.3.9.2. M6i trU'cYng do

M6i trU'cmg blnh thU'cmg.

3.3.1O. Tri~t di~u ch~ bien de? (AM)

3.3.10.1. Thu tl;JC do ki~mN~u BTS he trQ' SFH thl khi do phai tat ch~ dQ nay. Phep do chI dU'Q'cthl,l'c hi$ntrong cac dieu ki$n tTnh:a) TrU'cmg hQ'pBTS kh6ng thuQc nhom BTS da song mang hoi;ic thuQc nhom BTSda song mang nhU'ng khong co may thu da song mangPhep do kiem nay phai dU'Q'cthl,l'c hi$n t<;IimQt ARFCN b<1tky tren mQt TRX va tn~~ncac kenh dU'Q'cBTS he trQ't<;Iimuc tin hi$u nhU'ng quy dinh trong Bang 32, 33 va 34.b) TrU'ang hQ'pBTS thuQc nhom BTS da song mang co may thu da song mangTmang hQ'p BTS thuQc 10<;Iivung rQng va vung trung blnh, BTS phai dU'Q'cc<1uhlnhtheo ml,JCB.2.1a v&i 56 1U'Q'ngI&n nh<1ttin hi$u mong mu6n hoi;ic b6n (4), tuy theo s6naa nh6 han, ap dl,Jngd6i v&i cac kenh v&i muc tin hi$u t<;Iid<1uvao may thu quydinh trong Bang 32, 33 va 34.Tmang hQ'pBTS thuQc 10<;Iivung nh6, BTS phai dU'Q'cc<1uhlnh theo ml,JC8.2.10 v&i56 1U'Q'ngI&n nh<1ttin hi$u mong mu6n hoi;ic hai (2), tuy theo 56 nao nh6 han, (~pdt,mg d6i v&i cac kenh v&i muc tin hi$u t<;Iid<1uvao may thu quy djnh trong Bang 32,33 va 34.Cac t<1n56 clla cac tin hi$u mong mu6n dU'Q'cphan b6 cang d6i xung cang t6t trongph<;Imvi va xung quanh tan 56 trung tam clla bang thong RF I&n nh<1tclla tr<;Imgl)Cv&i hai tin hi$u mong mu6n t<;Iicac t<1n56 cach tin hi$u nhieu 6,0 MHz, cac tin hii~umong mu6n con l<;Iinam t<;Iibien clla bang thong RF I&n nh~t, mien la khoang cacht<1n56 trong cac ci;ip t<1nso tU'ang ung t6i thieu bang 600 kHz, nhU' the hi$n trongHlnh 4.N~u bang thong RF I&n nh~t clla tr<;Img6c khong cho phep phan b6 cac tin hi$u (ykhoang cach 6 MHz va I&n han ve hai phfa cua tin hi$u nhieu theo mo ta tren thl tan56 clla tin hi$u nhieu dU'Q'cphan b6 de co khoang cach tan 56 giva tin hi$u mongmu6n va tin hi$u nhieu ve mQt phla phai :::::6 MHz nhU' mo ta tren va cac tin hi$umong mu6n khac van co the phan b6 t<;Iibien clla bang thong RF l6'n nhat clla tr~lmg6c v&i khoang cach tan 56 trong cac c~p tan 56 tU'ang Crngt6i thieu bang 600 kHz..CHU THICH 1: Neu s5 1U'Q'ngtin hi$u mong mu5n I&n nh~t la ba (3) thi ma ta neu tren thl so v&i cauHinh 4 tinhi$u, tin hi$u phfa ngoai co khoang cach tan s5 den nhieu nh6 nh~t trong c~u Hinh 4 tfn

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QCVN 41 :2016/8TTTT

hi$u dll'Q'c b6 ra ngoai. Neu s6 11I'Q'ngtin hi$u mong mu6n Ian nhM Iii hai (2) thl ca hai tfn hi$u phfangoai dll'Q'c b6 ra.

Cac tfn hi~u mong mu5n phai.co cung di~u ch~ GSM thlJ'ang.N~u BTS ha trO' ca EGPRS va ECSD thi khong c~n thi~t phai thllc hi~n do ca hai ch~dQ. N~u BTS khong ha trO'TCH/FS thi phai do ki~m cac kenh cao nhM dlJ'O'cha trO'tu PDTCH/MCS-1 d~n MCS-4.Tin hi~u nhieu dlJ'O'cdi~u ch~ GMSK theo cac d$c tfnh GSM (co ho$c khong co ph~ngi[Pa khe) bang chuai bit gia ngau nhien co chi~u dai It nh~t la 511 bit.

A.J

Tin hi~u nhieu

Cae Un hi?u mongmu6ndauvao Cae tin hf~Umong

muon dauvao

~ jo;(

6;Oi\t1Hz ""6;0 MHz

Bang thong RF l6'n nhat eua STS

Hinh 4 - Phan b6 cac tin hi~u mong mu6n va tin hi~u nhi.%uCHU THICH 2: M('>tchuai 148 bit trong chuai 511 bit gia ngay nhien dll'Q'c dinh nghia trongKhuyen nghj ITU- T 0.153 t~p IVA.

i) TrlJ'ang hQ'p BTS khong thuQc nhom BTS da song mang ho$c thuQc nhomBTS da song mang nhlJ'ng khong co may thu da song mangT~n s5 (t) clla tfn hi~u nhieu phai nam trong bang thu lien quan cach ARFCNdlJ'O'cdo ki~m t5i thi~u 6 MHz. T~n s5 f la bQi s5 clla 200 kHz va cach dap Cmggia b<Mky xac dinh trong blJ'6'cdo 9) ml)C 3.3.8 t5i thi~u 2 ARFCN.

ji) TrlJ'ang hO'pBTS thuQc nhom BTS da song mang co may thu da song mangT~n s5 (t) clla tin hi~u nhieu phai nam trong bang thong RF l6'n nhM clla BTScach (cac) ARFCN dlJ'Q'c do ki~m t5i thi~u 6 MHz. T~n s5 f la bQi s5 cua200 kHz va cach dap Cmg gia b~t ky xac dinh trong blJ'6'c do 9) ml)C 3.3.8.2 t5ithi~u 2 ARFCN.K~t qua do clla cac tin hi~u mong mu5n cachtin hi~u nhieu ~ 6 MHz phaidLPQ'cghi 'C;]id6ng thai va khong dlJ'Q'c phan b6 lC;]icac ngu6n clla may thutrong qua trinh do.TrlJ'cmg hQ'p BTS thuQc nhom BTS da song mang co may thu da song mang,thai gian do co th~ rut b6't bang cach do d6ng thai cac kenh logic khac nhautren cac song mang khac nhau. Ty I~ loi phai dlJ'Q'cdanh gia rieng cho tung tinhi$u mong mu5n va tren khoang thai gian nhlJ' nhau d5i v6'i mQi tin hi$u mongmuon, dU'Q'cxac dinh la thai gian do ki~m dai nh~t cua kenh logic dlJ'Q'cdoki~m.

Tin hi$u nhieu phai co mQt khe thai gian hoC;]tdQng, dap Lrng m;;lt n9 cong su~tlth(yigian trong Phl) Il)c A cua TS 145 005. Cac Cl)m phat di phai dlJ'Q'cdong bQ nhU'ng tre

62

QCVN 41:2016/BTTTT

so v6'i cac Cl,JmclIa tin hi$u mong mu6n mQt khoang thCYigian tu 61 d~n 86 chu ky k:{hi$u. MLrc trung binh clIa nhieu tren ph~n hCl'uich clIa Cl,JmdU'Q'cdinh nghTa tronqBang 39.

Bang 39 - MlJ'eeong 5U~t tin hi~u nhi~u

GSM 900DeS 1 800

Hai tin hi$u d~u vao phai dU'Q'cdU'a vao may thu qua mC;1ngph5i ghep. MLrc congsuat tham chieu cho ca hai tin hi$u phai la cong suat dU'a vao d~u n6i ang ten RXclIa BTS.CHU THicH 3: Khi do kiem yeu c~u nay c~n thiet phai co mot bO IQc notch de dam bao kh6ng anhhU'&ng den ho9t dong d6ng kenh clla may thu.

3.3.10.2. Moi trU'cyngdo

Moi trU'cyngbinh thU'cyng.

3.3.11. Phat x~ gia tiP d~u n6i ang ten eua may thu

3.3.11.1. Thu t~e do ki~m

May phat dU'Q'ccau hinh v6'i mQt TRX hOC;1tdQng & t~n 56 M clIa kenh RF va phattoan bQcong suat tren tat ca cac khe thCYigian.

Trong trU'cynghQ'pBTS co phan ti;lp, cac yeu c~u clla ml,JCnay ap dl,Jngcho tung di3.Un6i ang ten clla RX.TrU'cynghQ'pBTS co mQt ho$c nhieu bQsong cong thi nhCl'ngyeu c~u clla ml,Jc2.2.3ap dl,Jngd6i v6'i bat ky d~u n5i ang ten nao dung lam c6ng cho ca (cac) may thu va(cac) may phat, do do khong c~n phai thl,J'chi$n cac phep do tren cac c6ng nay.

f)~u n6i ang ten RX phai n5i t6'i may phan Uch ph6 ho$c Von met chQn t~n co cungtr& khang d$c tlnh.

Thiet bj do phai co cau hinh nhU' quy dinh trong Bang 40. Bi;lt che dQ giCl'song d1nhva bang thong video xap xi bang ba I~n bang thong phan giai. Neu thiet bj do khongdll bang thong nay thi bang thong phai la gia trj l6'n nhat co th~ va t5i thi~u la 1 MHz.TrU'cyng hQ'p BTS thuQc nhom BTS da song mang co may thu da song mang thi coth~ bi;lt che dQtach song trung binh RMS.

Cong suat phai dU'Q'cdo tren cac khoang t~n s5 cho trong Bang 40.

Bang 40 - £)i~u ki~n do d6i v&i cae phat x<;t gia dan tLP d~u n6i ang ten RX

Bang t~n 56 £)9 I~ch t~n 56 Bang thong phan giaiTu 100 kHz den 50 MHz 10 kHzTu 50 MHz den 500 MHz va 8Q I$ch khoi bien cllanam ngoai bang tan phat bang phat

> 2 MHz 30 kHz

63

QCVN 41:2016/8TTTT

8ang t~n s6 - D9 I~ch t~n s6 Bang thong phan giai~ 5 MHz 100 kHz

TI1'500 MHz o~n 1 GHz va 80 I$ch khoi bien cuanam ngoa; bang t~n phat bang phat

~ 2 MHz 30 kHz~ 5 MHz 100 kHz~ 10 MHz 300 kHz~ 20 MHz 1 MHz~ 30 MHz 3MHz

TLr 1 GHz d~n 12,75 GHz 80 I$ch khoi bien cuava nam ngoai bang t~n phat bang phat

~ 2 MHz 30 kHz~ 5 MHz 100 kHz~ 10 MHz 300 kHz/1 MHz (*)~20 MHz 1 MHz> 30 MHz 3 MHz

Trang bang t~n phat 80 I$ch khoi tc~ns6song mang phat~ 1,8 MHz 30 kHz~6 MHz 100 kHz

CHU THICH (*): Bang thong do kiem 1 MHz chi ap dl,mg doi vai BTS thuQc nhom BTS da songmanq co bQ thu da song manq.

3.3.11.2. M6i trU'o-ng do

Mai trU'6'ng binh thU'6'ng.

3.3.12. Philt x~ gia bwc x~

.86i vai BTS co mot va dan nhU' Hinh 5 va 6 thi cac phat X<;l gia bCrc X<;l oU'Q'cdo tl1'vo cua BTS bao gam cac phat X<;l do cac may phat cua thi~t bj vo tuy~n.

86i vai BTS co nhieu va nhU' Hinh 5 va 7 thi cac phat X<;l gia bCrc X<;l tl1' BTS vai kh6iva tuy~n s6 va kh6i vo tuy~n dU'Q'c00 rieng reo

Khai ni$m c6ng va nhU' dU'Q'cma ta trang Hinh 5, khai ni$m chi ti~t oU'Q'Cneu trangml,lc1.4. .

CHU THICH: VI dl) ve c6ng: bat ky diem ket noi nao tren thiet bj dung de ket noi cac cap den ho~c ditCrthiet bi deu dlJ'Q'ccoi /a c6ng (xem Hinh 5).

C6ng va

C6ng ngucSnAC IIC6ng,ngUcS~ D~ _

Cong noi dat .•EUT

II

C6ng ang ten

~ Cong dieu khien/ Un hi$u

. Cong vien thong

Hinh 5 - VI du v~ cae c6ngThi~t bi BTS

Thiet biva tuyen

64

QCVN 41:2016/BTTTT

Hinh 6 - BTS co rnQt vo dO'nThi~t bi BTS

.,1

I

I

1IIII

III1II_____ J

------------ ---------------------Thi€!t bj va tl;J.Y.~rt._._._._

Kh6i va Kh6i v6tuy€!n s6 tuy€!n

------------- --------------------Hinh 7 - BTS co nhi~u vo

3.3.12.1. Thu tlJC do ki~ma) Khu VIlCdo ki~m phai tuan thu cac yeu c~u trong Khuy~n nghi ITU-R SM.329-12.BTS phai dU'qc dc;ittren thi~t bi phi dan va SLY dl,mg ngu6n cung c~p thong qua m~tbQ IQcRF d~ ngan nhO'ng buc X<;itLr day ngu6n. PhU'O'ngphap do trong Khuy~n nghiITU-R SM.329-12 dU'Q'cap dl,mg ngo<;iitrLr nhO'ng trU'cYnghQ'pkhong phu hQ'pv6'i quychucflnnay.Buc X<;iclla cac thanh ph~n t<;ipbM ky dU'Q'cphat hi~n qua ang ten do va may thu do(VI dl,l: may phan Uch ph6). Tc;timoi t~n so khi xuM hi~n phat X<;igia, phai xoay trc,"BTS va di~u chTnhdQ cao clla ang ten do ki~m d~ dc;ttdU'qc muc thu l6'n nh~t. GongsuM buc Xc;thi~u dl,lng clla thanh ph~n tc;tpdU'qc xac dinh b.tIng phU'O'ngphap do thayth~. Phep do phai dU'Q'cIc;ipIc;tiv6'i ang ten do trong mc;itphc3.ngphan CIlCtn.J'cgiao.b) BTS phai dU'Q'cc~u hinh v6'i mQt TRX hO<;itdQng tc;timuc congsu~t ra l6'n nh~ttren tM ca cac khe theYigian tc;ticac ARFCN xac dinh. Ch~ dQnhay t~n ch$m phai tM.CHU THICH: co th~ c~n phai thl!c hi$n cac bU'O'cdo d~ dam bao cac phat X9 tlf cac may phat khackhOng ho9t dong kh6ng lam anh hU'ang d€!n k€!t qua do. Vi$c nay co th~ thl!c hi$n b~ng cach thi€!t I;~pBTS chi co mot TRX ho9t dQng ho~c ch~n (muting) cac d~u ra clla cac may phat a muc cao hO'nm1.JCyeu c~u trong TS 145 005.c). May thu do phai dU'Q'cc~u hinh v&i bang thong phan giai b.tIng 30 kHz va bangthong video x~p XI b.tIng ba I~n bang thong phan giai. B$t ch~ dQ giO' song dlnh, trLrtrU'eYnghQ'p BTS thuQc nhom BTS da song mang thi co th~ b$t ch~ dQ tach songtrungblnh RMS. Cong su~t thu phai dU'qc do v&i cac t~n so c6dQ I~ch trong khoang1,8 MHz :'S: f < 6 MHz tLr t~n so song mang va cac t~n so nay n.tIm trong bang t~nphat cua BTS.Tc;timoi t~n so co thanh ph~n phat X<;igia, cong su~t phat X<;ihi~u dl,lng CIlC d<;iiCIliathanh ph~n nay phai dU'Q'cxac dinh nhU' cach neu & bU'&c a).d) May thu do phai dU'qc c~u hinh vai bang thong phan giai b.tIng 100 kHz va bangthong video x~p XI b.tIng ba I~n bang thong phan giai. B$t ch~ dQ giO' song dlnh, trLrtrU'eYnghQ'p BTS thuQc nhom BTS da song mang thi co th~ b$t ch~ dQ tach songtrung binh RMS. Cong suM thu phai dU'Q'cdo v&i cac t~n so co dQ I~ch 2': 6 MHz tLrt~n so song mang va cac t~n so nay n.tImtrong bang t~n phat cua BTS.Tc;timoi t~n so co thanh ph~n phat Xc;tgia, cong su~t phat X<;ihi~u dl,lng Cl)'Cd<;iiclIathanh ph~n nay phai dU'qc xac dinh nhU' cach neu (y bU'&c a).e) BTS phai dU'qc c~u hinh v6'i t~t ca cac TRX hO<;itdQng t<;iimCPccong su~t ra 16'nnhM tren t~t ca cac khe thai gian. N~u mQt TRX dU'Q'cdung cho BCCH thi TRX nayphai dU'qc phan bo kenh tan so M. T~t ca cac TRX con Ic;tiphai dU'Q'cphan bo nhU'sau: TRX thCPnh~t (y di~m tan so B, sau do d~n di~m tan so T, k~ ti~p dU'Q'cphan bod~utren bang tan phat clla BTS. Phai tat ch~ dQnhay tan ch$m.TrU'cmg hQ'pBTS thuQc nh6m da s6ng mang thi phai kfch hoc;ttcac s6ng mang nhi~unhM ma BTS ho trQ'va hoc;ttdQng (y cong su~t I&n nh~t nhU' cong booCac s6ng mangdU'Q'cphan bo tren bang RF I&n nh~t nhU' quy dinh trong ml,JC3.3.6.

65

QCVN 41:2016/BT1TT

May thu do phai dU'Q'ccau hJnh nhU' & Bang 41. B~t ch~ do giO' song dlnh va bangthong video xap XI bilng ba l~n bang thong phan giai. N~u thi~t bi do khong dll bangthong nay thJ bang thong phai la gia tr! Ian nhat co th~ va t5i thieu la 1 MHz. TrU'cmghQ'p BTS thuoc nhom BTS da song mang thi co the b~t ch~ do tach song trung bJnh. RMS. Gong suat thu phai dU'Q'cdo tren khoang t~n 55 tCP30 MHz d~n 4 GHz khongbao gam bang t~n TX clla BTS.T<;limai t~n 55 co thanh ph~n phat X<;lgia, cong suat phat X<;lhi$u dl,1ngCl}'Cd<;licllathanh ph~n nay phai dU'Q'cxac dinh nhU' cach neu & bU'ac a).

Bang 41 - Do phat x~ gia bl"Pcx~ ngoai bang t~n phat

Bang t~n s6 Do h~ch ~n s6 Ban~ thon~ phan ~iaiTCP100 kHz d~n 50 MHz 10 kHzTCP50 MHz d~n 500 MHz va flo I$ch kh6i bien cllanilm ngoai bang t~n phat bang phat

~2 MHz 30 kHz~ 5 MHz 100 kHz

TCP500 MHz d~n 1 GHz va flo I$ch kh6i bien cllanilm ngoai bang tan philt bang phat

~2 MHz 30 kHz~ 5 MHz 100 kHz~ 10 MHz 300 kHz~ 20 MHz 1 MHz> 30 MHz 3 MHz

TCP1 GHz d~n 12,75 GHz flo I$ch kh6i bien cllava nilm ngoai bang t~n phat bang phat

~2 MHz 30 kHz~ 5 MHz 100 kHz~ 10 MHz 300 kHz/1 MHz (*)~ 20 MHz 1 MHz

. '-." .

> 30 MHz . 3 MHzCHU THICH (*): Bang thong do kiem 1 MHz chi ap dl,Jngdoi v6'i BTS da song mango

3.3.12.2. Moi trU'cyng do

Moi trU'ang bJnh thU'6'ng.

4. QUY D!NH VE QUAN LYCac thi~t bj tr,?m g5c thong tin di dong G8M thuoc ph,?m vi di~u chTnh quy dinh t,?imt.Jc1.1 phai tuan thll cac quy djnh ky thu~t trong Quy chu~n nay.

5. TRAcH NHI~M CUA TO CHUC, cA NHAN

Cac t6 chCrc, ca nhan lien quan co trach nhi$m thl}'c hi$n cac quy dinh v~ chCrngnh~n va cong b5 hQ'p quy cac thi~t bj tr,?m g5c thong tin di dQng G8M va chiu Sl}'ki~m tra clla ca quan quan ly nha nU'ac thea cac quy djnh hi$n hanh.

6'6

---------- ~_=.= ..==,.,..,.... =. ==_"__-----".,....,....,,.,."""". ""'"...•.••I • .&"""EL,,"""&2 .••.=3_i."'-~~,-":~,."=}Jl.1I~,';.~~L'••...".,.~_o=" ,.

QCVN 41 :2016/BTTTT

6. TO CHLrC THl)'C Hii;N

6.1. Cl)C Vien thong va cac S6' Thong tin va Truy~n thong co trach nhi$m te chLPGtrien khai hlfang dan, quan Iy cac thi~t bi tr9m g6c thong tin di dong GSM thea Quychu~mnay.6.2. Quy chu~n nay dlfQ'c ap dl:Jngthay th~ cha Quy chu~n QCVN 41: 2011/BTTITQuy chu~n ky thu$t qubc gia v~ thi~t bi tr9m g6c thong tin di dong GSM.

6.3. Trang trlfcYng hQ'pcac quy dinh neu t9i Quy chu~n nay co Sit thay dei, be sun'9ha~c dlfQ'c thay th~ thl thltc hi$n thea quy dinh t9i van ban maL

67

--------------------------------<

QCVN 41:2016/BTTTT

PHI) LI)C A(Quy dinh)

C~u hinh do ki~m

A.1. Thi~t bi do ki~m h~ thc5ngtr?m gc5c(BSSTE)

BSSTE 121 mQt cong CI,1chuc nang dung cho ml,1c dich do ki~m tr<;l.mg6c GSM.BSSTE co th~ thl!c hi$n do ki~m toan bQ cac phep do dU'Q'cmo ta trong tai Ii$u kythu$t cua thi~t bi nay.

A.2. ThiM bi mo phong pha dinh va truy~n Ian da dlJ'<Yng(MFS)Thi~t bi mo phong pha dinh da dU'cmgSLr dl,1ngtrong mQt s6 phep do may thu d~ maphong truyen Ian da dU'cmg bang rQng cua cac kenh vo tuy~n di dQng (vi dl,1dU'cmgtruyen giCl'acac ang ten cua tr9m g6c va may di dQng). T$p hQ'pcac dieu ki$n truyenIan da dU'cYngtieu chu~n sau day dU'Q'cCOST 207 dU'a ra va dU'Q'Cmo ta trong3GPP TS 45.005, bao g6m:

1) 8ia hinh thanh ph6 di~n hlnh (Typical Urban terrain - TU)

2) 8ja hinh nang thon (Rural terrain - RA)

3) 8ia hinh d6i nui (Hilly terrain - HT)

Ngoai ra MFS con dung trong bQ tham s6 da dU'cYngd~c bi$t, thi~t k~ d~ danh giakha nang can bang cua may thu:

4) BQ can bang (Equalizer - EQU) .

Cac bQ tham s6 da dU'cYngdU'Q'cSLr dl,1ng cho mQt dai t6c dQ thong thU'cYngcuaphU'O'ng ti$n giao thong:

GSM 900: TCf 3 km/h d~n 250 km/h. Cac t6c dQ 3, 50, 100 va 250 km/h thU'cYnghaydU'Q'cSLr dl,1ng.

DCS 1 BOO: TCr 1,5 km/h d~n 130 km/h. Cac t6c dQ 1,5; 50; 100 va 130 km/h thU'cYnghay dU'Q'cSLr dl,1ng.

~hi ti~t ve cac dieu ki$n da dU'cYngva cac yeu c~u tU'O'nglI'ng trong MFS dU'Q'cneutrong 3GPP TS 11.10 (Mobile Station Conformity Specification).

MFS co the la mQt thanh ph~n cua BSSTE nhU'ng_cOng c6 the 121 mQt thi~t bL rieng__bi$t.

A.3. Do suy hao xuyen di~u ch~

Cac c~u hinh do kiem sau day 121 cac vi dl,1ve cac giai phap do ki~m trong ml,1C3.3.4va 3.3.5. Cac phep do nay r~t kh6 thl!c hi$n do cac yeu c~u khat khe ve dai dQng.Khi thllc hi$n cac phep do nay thi phai lU'u y cac di~m sau d~ tinh phi tuy~n trongc~u hinh do khong anh hU'ang d~n kM qua do kiem.

CHU THICH 1: Can phai c~n th~n trong qua trlnh thiet I~p cau hlnh do va phai sCI' dl,mg cap va dau noico chat 1U'Q'ngtOt. Cap phai dU'Q'cbao v$ dn th~n v~ v~t Iy va khong dU'Q'cch<;1md€:n lieu kh6ng canthiet

CHU THfcH 2: Cac dau noi phai la v~t Ii$u phi tiJ' tfnh. Cac v~t li$u co b~ mc;\tkhac nhau & ca cac daunoi cOng nhU' cae moi ncSitren dU'cyngtruyen dan se anh hU'0'ng den vi$c truy~n tin hi$u.

CHU THICH 3: Cac bQ suy hao cong suat thong thU'cyng se anh hU'0'ng d€:n truyen tin hi$u & mlJ'Ccong suat van cao, do d6 khi do ki~m mlJ'c cong suat cao thl nen dung cac cap dai. .

68

QCVN41:2016/8TTTT

A.3.1.Trong bang t~n thuSa d6 c~u hinh do suy hao xuyen di~u ch~ trong bang t~n thu du'Q'cminh hQa tronqHinh A.1. BQghep n6i dinh hU'ang SLr dl,mg trong do ki~m d$t tren d~u n6i du6'ng tinhi$u chinh. BQ ghep song cong c6 tlnh nang IQcphu hQ'p do d6 may phan tlch phc)ho~t dQng trong dai tuyen t1nh. Tinhi$u dU'a vao dU'Q'ckhu~ch d~i va dU'Q'cIQcd~ ciSphan CllC phu hQ'pnham ch$n cac thanh ph~n xUYEmdi~u ch~ phat sinh trong nQi t~lic~u hinh do.

B(}19Csong c6ng

--:x:::.....

BTS 89 ph6ighep ~--:><:..- Philn ueh

l Tx BangBTS-RXph6

••••H ••~•• H • I...~....•....••.......•.........•.•-..- BangBTS-TX.:........ -..............~......-....- ~_."...•... -:><...- - ;

Rx ~"""><..-..-x:::.....

~ ~~ •••• ~ ••••••••••••••••••••••••••••••••• h •••••••• _ .......Hio s6 BTS-TX -x.....

Capsuy Capsuygiam giam

B9~O [> --:x:.....Un hi${J - I-- ~ -

"""><....- BangBTS-TX 050.0. 0500..l... 1

Hinh A.1 - C~u hinh do do suy hao xuyen di~u ch~ trong bang t~n thu

A.3.2.Ngoai bang t~n thu

Sa d6 cc1uhinh do suy hao xuyen di~u che ngoai bang t~n thu dU'Q'cminh hQa tronghinh A.2. Thiet bi ghep n6i phai ho~t dQng tren bang thong phu hQ'pd~ dam bao c,kyeu c~u do ki~m.

6TS 69 phoi ghep

~ TxPhan t1chph6

............. ".•.. cap suy

...................• giam

.,...............••••••••••••• H •••• _

f ••..•..•••••

Rx

-><--Tgn so ella ---------bCl f?o song

~

Capsuygiam

89 t?O - [>tin hieu [ 50n

Hinh A.2 - ciiu hinh do xuyen di~u ch~ ngoai bang tc1nthu

69

QCVN 41:2016/8TTTT

AA. £)0 suy hao xuyen di~u ch~ ben trong thi~t bi tr~m gacAA.1.Trong bang t~n thu

SO'd6 c~u hinh do suy hao xuyen dieu che ben "trong thiet bi tr<;lmg5c trong bang t~nthu dU'Q'cminh hQa trong Hinh A.3. Thiet bj ghep n5i phai hO<;ltdQng tren bang thongphu hQ'pd~ dam bao cac yeu c~u do ki~m.

Suy hao chan dai clla bQ IQc song cong phai du Ian d~ dam bao cho may phan Uchphd hO<;ltdQng trong dai tuyen tinh clla no.

SO loesong eong

: -_ :

BTS

jTX

................

...............• ............RX

Cap suygiam Bang BTS-RX

Bang BTS-TX----:x::.... i--~~

............. __ _-_ .

Phan Uehpho

Cap suygiam

1]50n1

Hinh A.3 - c~u hinh do suy hao xuyen diE1uch~ ben trong thi~t bi tr~m gactrong bang t~n thu

AA.2. Trong bang dn phat

SO' d6 c~u hinh do suy hao xuyen dieu che ben trong thiet bi tr<;lmg5c trong bang t~nphat dU'Q'cminh hQa trong Hinh A.4. f)~ giam yeu c~u ve dai dQng clla may phan tichphd thi c~n SLY dl,Jngcac bQ IQcben ngoai.

BTS

1 TX

Cap suygiam --x..-

Phan tfeh---.........-x...... ph6

~RX

Hinh AA - c~u hinh do suyhao xuyen di~u ch~ ben trong thi~t bi tr~m g6ctrong bang tJn phat

70

QCVN 41 :2016/BTTTT

PHl) Ll)C 8(Quy dinh)

Cae di~u ki~n do ki~m chung va khai baa

B.1. Khai baa ella nha san xu~t

Cac chuc nang xac dinh clla mQt STS la tuy chon trong cac c~u hlnh clla GSM.Khi do kiem, nha san xu~t phai khai bao gia tri danh dinh clla tham s6, ho~c mQt tuychon co dU'Q'cSLrdl,lng hay khong.8.1.1. Cong suM ra va xae dinh lo~i eong su~tNha san xu~t phai khai bao cong su~t I&n nh~t cho m6i TRX d6i v&i m6i kieu di@:uch~. 86i v&i micor - STS ho~c pica - STS, muc cong suM nay dU'Q'cxac dinh t;;ti dEIUn6i ang ten. 86i v&i BTS thU'6'ng, muc cong su~t nay phai dU'Q'cchI ra ho~c la t;;tid~u VaGclla bQ ph6i ghep ho~c la t~i d~u n6i ang ten clla BTS.86i v&i STS thuQc nhom STS da song mang, nha san xuM phai cong b6 cong su~t mI&n nh~t clla tLmg song mang trong trU'cynghQ'p t~t ca cac song mang ho;;tt dQng t;;ticung muc cong su~t danh dinh. M6i kieu di~u ch~ va m6i tCrngs6 1U'Q'nghe trQ' dE~ns6 1U'Q'ngsong mang I&n nh~t dU'a d~n tCrngc6ng ang ten cOng phai dU'Q'ckhai bao.Ngoai ra cOng phai khai bao cong su~t t6ng cQng I&n nhM CllC d;;ticlla STS. Nha s~inxuM cOng phai khai bao STS co dap ung dU'Q'ccac yeu c~u clla STS da s6ng mangvung rQng, vung trung blnh va/ho~c vung nhe. Co the chI c~n khai bao STS dap ungcac yeu c~u clla BTS da song mang vung trung blnh va/ho~c vung nhe n~u congsuM t6ng cQng clla STS thea man gi&i h;;tncong suM quy dinh trong bang 8.1-2.86i v&i micro-STS, lo;;ti clla micro-STS dU'Q'cxac dinh tCrgia tri cong su~t I&n nhMdU'Q'ckhai bao, tU'O'ngLmg v&i Sang S.1-1. N~u co the ap dl,lng dU'Q'Cthl nha s(~nxu~t phai khai bao STS co dap ung cac yeu c~u clla micro-STS ho~c pico-STS hay.kl)ong.86i v&i BTS he trQ' cac kieu di~u ch~ khac (8-PSK, 16-QAM, 32-QAM, QPSK,AQPSK) ho~c t6c dQ ky hi~u cao hO'nthl nha san xu~t phai khai bao v~ cong su~t raCllC d~i d6i v&i GMSK va tCrngt6 hQ'pv~ di~u ch~ va t6c dQ ky hi~u co the he trQ'.V~I&p cong su~t clla TRX, I&p cong su~t clla micro-STS ho~c pico-STS dU'Q'cxac dinhla cong su~t ra cao nhM clla kieu di~u ch~ b~t kyo

8ang 8.1-1 -Cae lo~i eong su~t ella miero-8TS va pieo-8TS

Lo~i eong suat Cong suat ra I&n nhat ella Cong suat ra I&n nhat ellaella TRX micro va pica GSM 900 BTS micro va pica DCS 1 800 BTS

M1 TCr> 19 dSm d~n 24 dBm TCr> 27 dBm d~n 32 dBm

M2 TCr> 9 dBm d~n 14 dBm TCr> 22 dBm d~n 27 dBm

M3 TCr> 14 dSm d~n 19 dBm TCr> 17 dBm d~n 22 dBm

P1 TCr> 13 dBm d~n 20 dBm TCr> 16 dBm d~n 23 dBm

Bang 8.1-2 - Cae lo~i BTS da s6ng mang

Lo~i STS da s6ng mang Gi&i h~n eong suM t6ng e9ng t~i ttrng e6ng ang tl~n

Khan i&i hc:'ln:::;38 dBm:::;24 dBm

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QCVN 41:2016/BTTTT

CHU THICH: 86i v&i STS thlJ'cmg 10<;licong su~t clla TRX co the dlJ'Q'Cxac djnh tll' cong suat ra do nha san xuatkhai bao cho moi TRX do t<;lidau VaG bQ phoi ghep theo bang cac lo?i eong suat ella TRX trong TS 145 005.Nhli'ng yeu eau do kiem doi v&i STS thlJ'Crngse khong thay d6i lheo eae 10<;lieong suat ella TRX. 8inh nghTa v~io?i eong sual ella TRX chi lien quan t&i eong suat khai bao eho moi TRX va eong suat ra 00 OlJ'Q'Cella STS vakhong lien quan oen yeu cau v~ cong suat ra 00 OlJ'Q'C.

8.1.2. Dai tc1n cong tacNha san xu~t phai khai bao:

Dai t~n cong tck cua BTS g6m nhCrng dai nEw trong ml,lC 1.1; mQt BTS co th~hO<;itdQng a dai t~n DCS 1 800 va mQt trong cac dai t~n GSM 900 nhU'ng khongth~ cong b6 BTS hO<;itdQng a nhi~u hO'nmQt dai t~n trong bang GSM 900.Dai t~n cong tac nc1mtrong cac bang t~n tren: bao g6m bang t~n phat va bangt~n thu.TrU'ong hO'p BTS thuQc nhom BTS da song mang: bang thong RF l6'n nh~t d6iv6'i mei d~u n5i ang ten phat va thu ma BTS he trO'. .TrU'ong hO'p BTS thuQc nhom BTS da song mang: bang thong bQ IQc phat l6'nnh~t ma BTS he trO'.

Nhi~u do ki~m trong tieu chuc1nnay dU'O'cthl,l'c hi$n v6'i cac t~n s5 thfch hO'pa d~u,giCrava cu5i bang t~n cong tac cua BTS Crngv6'i cac kenh RF B(d~u bang), M (giCrabang) va T (cu6i bang).

Khi vi$c do ki~m do ph6ng thu nghi$m thl,l'c hi$n thi ph6ng thu nghi$m phai xac dinhcac ARFCN dU'O'cdung cho cac kenh RF B, M, T. Ph6ng thu nghi$m co th~ thamkhao cac nha cung c~p djch Vl,l,cac nha san xu~t ho$c cac dO'nvi khac.

Khi do ki~m do nha san xuM thl,l'c hi$n, cac ARFCN dU'O'cdung cho cac kenh RF B,M, T co th~ do nha cung c~p dich Vl,lquy~t dinh.

8.1.3. Nhay tc1nNha san xu~t phai khai bao v~ vi$c BTS co he trO' nhay t~n ch~m (SFH) hay khongva n~u co thl phU'O'ngthCrcthl,l'c hi$n cO'ban hay nhCrng phU'O'ngthCrc thl,l'c hi$n naodU'Q'csu dl,lng. N~u co he trO'SFH thi BTS phai co kha nang chuy~n t6'i t~n s6 bM kytrong bang t~n hO<;i.tdQng cua BTS theo nguyen t~c nhay theotCmg khe thoi gian.D5iv6'i cac BTS thuQc nhom BTS da song mang thl STS phai co kha nang chuy~n d~nb~t ky m(>tt~n s5 nao thu(>c bang thong RF cua BTS theo nguyen t~c nhay theo tungkhe thoi gian .

.Hai phU'O'ng thCrc cO'ban thl,l'c hi$n SFH la:

a) Nhay t~n bang t~n g5c: Nhay t~n dU'O'cthl,l'c hi$n thong qua ghep dCrIi$u clla cackenh logic VaGcac TRX khacnhau tU'O'ngtheo cO' ch~ nhay t~n. Cac TRX dU'O'cdi~u hU'ang c5 dinh t6'i m(>tARFCN rieng.

b) Nhay t~n t6ng hO'p: Nhay t~n dU'O'cthl,l'c hi$n thong qua vi$c di~u hU'ang TRXtheo nguyen t~c tung khe thoi gian. Cac kenh logic dU'O'cdanh rieng cho m(>tTRX nhay t~n.

Mo ta chi tiM v~ cO'ch~ nhay t~n nhU'mota trong TS 145002.

8.1.5. Phat gian do~n dU'(yng xUcSng

Phat gian dO<;indU'ang xu6ng dU'O'csCI'dl,lng nhU' quy dinh trong cac tham s6 cllaGSM cho cac kenh tho<;iitoan t5c d(>va nhU' quy djnh trong TS 124 022 va TS 148020 d6i v&i dCr li$u khong trong sucH.DTX co the dU'O'cthl,l'c hi~n mot cach tuy chQntrong dU'ong xu6ng clla BTS (may phat) theo Sl,l'Il,l'achQn clla nha cung cap djch Vl,l.Tat ca nhCrng yeu c~u trong quy chuan nay dU'O'cap dl,lng bat ke DTX dU'ang xuongdU'O'csCI'dl,lng hay khong dU'O'csCI'dl,Jng.

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8.2. Cae e~u hinh eua BTSOuy chuc1nnay quy dinh nhCmgThll tl)C do kiem doi v6'i cac c~u hinh chuc1nclIa BTSthoa man cac yeu c~u ky thu~t clla GSM, Cl) the trong TS 145 001, TS 145 002 vaTS 145 005. Tuy nhien, co nhung c~u hinh khac clIa BTS tuan thll cac yeu c~u kythu~t nay, nhLPngvi~c ap dl)ng cac yeu c~u ky thu~t doi v6'i cac c~u hinh nay khongdLPQ'cquy dinh d~y duo80i v6'i mQt so c~u hinh nhLPv~y, co the co nhung cach thayth~ de ap dl:mg cac yeu c~u ky thu~t nay de do kiem v~ c~u hinh, hoc)c c~n thi~t comQt so thay d6i trorrg phLPO'ngphap do kiem. Vi v~y cac ben tham gia do kiem dinphai d9t dLPQ'cSl)' nhM trf tm6'c v~ phLPO'ngphap tm6'c khi do kiem.

N~u BTS co cac c~u hinh v~ moi tmang khac nhau thi khong nh~t thiet phai do dictham so RF clla tli'ng c~u hinh moi tmcmg, mien la co the cherng minh dLPQ'cla thi,~tbi dLPQ'cdo kiem t9i cac di~u ki~n moi tmang x~u nh~t.

N~u BTS co cac c~u hinh v~ cac bQ phoi ghep ang ten phat thl) dQng khac nhau, thico the co co cac cach khac nhau de chCrngminh Sl,l'phu hQ'pthay cho vi~c thl)'c hi~~ndo kiem tli'ng c~u hinh, vf dl) toi thieu la thl)'c hi~n do kiem v6'i mQt c~u hinh phCrctc~Pnh~t (worst case) clla cac bQphoi ghep ang ten.

Khi co cac giai thfch khac v~ yeu c~u ky thu~t cho mQt c~u hinh BTS c~n do kiem thigiai thfch dU'Q'cch~p thu~n trong khi do kiem phai dLPQ'cghi 19i trong baa cao dokiem.N~u Sl)' thay d6i v~ phLPO'ngphap do kiem trong quy chuc1nnay la c~n thi~t de co thedo kiem m<)tc~u hinh BTS thi Sl)' thay d6i v~ phLPO'ngphap da thl)'c hi~n trong quatrinh do kiem phai dU'Q'Cghi 19i cung v6'i cac ket qua do kiem. Neu co the, c~n di9tdLPQ'cSl,l' nh~t trf trLP6'cv~ ban ch~t clla Sl)' thay d6i v6'i nhung dO'n vi nao S8 til~pnh~n nhCl'ngket qua do kiem.

Cac giai thfch trong quy chuc1nnay v~ mQt so c~u hinh thong thLPangdLPQ'ctrinh baytrong cac ml)c sau day.

8.2.1. Phan t~p may thuCac phep do kiem a cac ml)C tli' ml)C 3.3.7 den 3.3.11 cua quy chuc1nnay dLPQ'ccoila may thu khong phan t~p. 80i v6'i cac may thu co phan t~p thi cac phep do thl)'chi~n bang cach dLPacac tfn hi~u do kiem dLPQ'cchi dinh vao mQt trong cac d~u 110iang ten clla may thu, cac d~u noi ang tencon 19i clla cac may thu dLPQ'cket cuoi bang50 Q, hoc)c tat.

Phan t~p may thu khong ap dl)ng doi v6'i cac tmcmg hQ'pc~u hinh chi co hai ang ten,vf dl) EGPRS2-B v6'i toc dQ ky hi~u cao va cac kenh trong che dQ VAMOS. Trongtmcmg hQ'pdo tM cac cac phep do may thu dLPQ'cthl)'c hi~n v6'i c~u hinh hai ang tenng09i trli' trong cac di~u ki~n Ian truy~n tTnh. Cac yeu c~u v6'i c~u hinh hai ang tendU'Q'cthiet I~p de khong co Sl)'mat can bang v~ dQ tang fch ho$c khong tll'O'ng quangiua hai nhanh thu.

8.2.2. 8<) song eong

Neu bQ song cong la mQt ph~n clla BTS thi nhung yeu c~u cua quy chuc1nnay phaidLPQ'cdap ung khi b<)song congo Neu nha san xu~t coi bQsong cong la tuy chQn, thlphai I$p 19i nhung do kiem d~y dll khi co va khong co bQsong cong de xac djnh E:TSco dap ung nhCPngyeu e~u eua quy chuc1ntrong ca 2 trLPcynghQ'phay khan-g.

NhCPngdo kiem sau phai dLPQ'cthl)'c hi~n khi co bQ song cong, va khang co bQ songcong (neu bQsong eong la tuy chQn):

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QCVN 41:2016/8TTTT

1) Ml)c 3.3.1, Cong suat phat trung binh cua RF, chi deSivai bU'ac do muc cong suattTnh cao nhat n~u do t?i dau neSiang ten.

2) Ml)c 3.3.3.2"Phat X? gia dan tu dau neSitu dau neSiang ten may phat nam ngoaibang phat cua BTS.

3) Ml)c 3.3.5, Suy hao xuyen di~u ch~ ben trong h~ theSngtr?m geScha$c ml)C 3.3.6,t?P am bang rQng va suy hao xuyen di~u ch~ ben trong BTS khi ho~t dQng & ch~dQda song mango

Ml)c 2.3.2: DQ nh?y chw1n da dU'cyng- cac ARFCN phai dU'qc lila chon d~ teSithi~uhoa cac thanh phan xuyen di~u ch~ tu cac may phat vao cac kenh thu.NhO'ng do ki~m con I?i co th~ thllc hi~n khi co ho$c khong co bQsong congoCHU THICH 1: Khi thl,J'chi$n nhCfng phep do may thu co b(J song cong, dieu quan trQng la phai dambao sao cho c6ng ra cua cac may phat khong anh hLl'&ng den cac thiet bi dLl'Q'Cdo ki~m. Bieu nay cothe d;;:ltdLl'Q'cbang cach SLrdl,mg m(Jt t6 hQ'pcua cac b(Jsuy hao, cac b(Jcach Iy va cac b(J IQc.

CHU THICH 2: Khi SLrdl,mg cac b(Jsong cong, cac thanh phan xuyen dieu che se dLl'Q'ct;;:lOra khOngchT& trong b(J song cong ma con & trong h$ th6ng ang ten. Cac thanh phan xuyen dieu che dLl'Q'ct;;10ra trong h$ th6ng ang ten khong dLl'Q'cquy dinh bang cac yeu cau ky thu~t cua ETSI va h$ th6ng angtenco the suy giam chcflt 1Ll'Q'ngtrong qua trlnh hO;;:ltd(Jng (vi dl,J:do Sl,J'tham nh~p cua hO'i nLl'6'c). Dov~y, de dam bao BTS tiep tl,Jc hO;;:ltd(Jng dung thi nha cung ccflpdich Vl,JthLl'<yngll,J'achQn cac kEmhARFCN d~ giam thi~u cac thanh phan xuyen dieu che rai vao cac kenh thu. f)~ do ki~m va danh giadLl'Q'Cday du thl nha cung ccflpdich Vl,Jphai cung ccflpdanh sach cac kenh ARFCN dLl'Q'cSLrdl,Jng.

8.2.3. NhG>ngtuy eh(;mv~ ngu6n eung e~p

N~u BTS dU'Q'Ccap ngu6n vai mQt seScau hinh khac nhau thi co th~ khong can doki~m cac tham seSRF thea tung tuy chon ngu6n cung cap n~u chung minh dU'O'crang ph?m vi cua cac di~u ki~n rna thi~t bj dU'Q'Cdo ki~m It nhat cOng bang ph?m vicac di~u ki~n d$t ra cho bat ky cau hinh ngu6n cung cap nao.

Di~u nay dU'Q'c d$c bi~t ap dl)ng n~u BTS co mQt dU'cyng ngu6n DC co th~ dU'Q'ccung cap tu ben ngoai ho$c tu mQt ngu6n chfnh ben trong cua BTS. Trong trU'cynghQ'p nay, nhO'ng di~u ki~n v~ ngu6n t6'i h?n deSiv6'i nhO'ng tuy chon cua ngu6n chfnhco the dU'Q'Cdo ki~m bang cach chi do ki~m v6'i ngu6n DC ben ngoai. Dai di~n apDC vao d~ do ki~m phai du de danh gia cac yeu cau ky thu~t khi BTS ho?t dQng vaibat cu ngu6n cung cap nao, trong ph?m vi cac di~u ki~n ho?t dQng cua BTS, k~ ca51l thay dBi clla di~n ap vao chfnh, nhi~t dQ va dong di~n ra.

8.2.4. Cae be? khu~eh d~i RF phl;Jtrg'

Cac yeu cau cua quy chu~n nay phai dU'Q'cdap ung khi co bQ khu~ch d?i RF phI)trQ'. Cac phep do kiem & cac ml)C tu ml)C 3.3.1 d~n 3.3.6 va ml)C 3.3.7 d~n 3.3.11tU'O'ng ung deSiv6'i TX va RX, bQ khu~ch d'ili phI) trQ' dU'Q'cneSit6'i BTS thong quam?ng k~t neSi(baa g6m bat cu (cac) cap, (cac) bQ suy hao, ... nao), v6'i suy hao thfchhQ'p de dam baa nhO'ng di~u ki~n ho?t dQng phu hQ'p cua bQ khu~ch d?i phI) trQ' va8TS. Khoang suy hao thfch hO'p cua m?ng k~t neSidonha san xuat khai baa. NhO'ngd$c tfnh khac va Sll phI) thuQc nhi~t dQ cua dQ suy'hao cua m?ng k~t neSidU'O'cboqua. Gia trj suy hao thl)'c cua mang k~t neSidU'Q'cchon cho tung phep do la mot trongso nhCl'ng gia tri t6'i h'iln dU'Q'cap dl)ng. Gia tri thap nh3t dU'O'cSLP dl)ng tru ml)c 3.3.1la ml,lCap dl,lng gia tri suy hao Ian nhat.

NhO'ng do ki~m thfch dang phai dU'Q'cI$p I'ili vai bo khu~ch d<;3iphl,l trO' va kh6ng cobo khu~ch d?i RF phI) trQ' (n~u la tuy chon) de danh gia BTS co dap CfngnhCl'ngyeucau cua quy chu~n nay trong ca hai trU'cynghQ'p hay kh6ng.

Khi do kiem cac chi tieu thi~t y~u, cac phep do trong bang B.2-1 dU'ai daY'phai dU'O'cI$p l<;3iv6'i bQ khu~ch d?i phI) trQ' (dau "x" bi~u thj vi$c co do kiem):

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Bang 8.2-1

Chi co b{) Chi co bl) KM h9'P dic bl)Do ki~m Ml,lc khu~ch dCili khu~ch dCili khu~ch dai

TX RX TXlRX (*)

3.3.8 x xCac phep do 3.3.9 x xmay thu

3.3.11 x3.3.1 x x

3.3.2 (chi 3.3.2.1) x xCac phep do 3.3.3 x xmay phat

3.3.4 x x3.3.5 ho~c 3.3.6 x x

CHU THlcH (*): S\..l' ph5i ghep co th~ dU'Q'cbang cac bQIQcsong cong ho~e cac m~ngkhae. Cae bQkhu~eh d~i co th~ (y nhanh thu ho~c nhanh phat ho~e ca hai. Cae bQkhu~ch d~i nay kh6nq dU'Q'c113 caem~nqthl,ldQnq.

f)5i v6'i cac phep do may thu, chi yeu c~u do ki~m v6'i TCH/FS.

Trang cac phep do t9i ml,Jc3.3.1, gia tri suy hao cao nhat dU'Q'cap dl,Jng.

B.2.5. BTS SlP dl;lng cae day ang tenBTS co th~ dU'Q'ccau hinh v6'i mQt k~t n5i cong nhi~u ang ten cho mQt s5 ho~c tO~lnbQ cac TRX clIa no ho~c v6'i mQt day ang ten clIa mQt cell (khong phai mQt day chomQt TRX). Ml,Jcnay ap dl,Jngcho BTS dap (PngIt nhat mQt trong cac di~u ki~n sau:

Cac tin hi~u ra clla may phat tlY mQt ho~c nhi~u TRX dU'a ra nhi~u hO'nmQt congang ten; ho~cCo nhi~u hO'n mQt cong ang ten clla may thu d5i v6'i mQt TRX ho~c moi cell vamQt tin hi~u vao dU'Q'cdU'a VaGnhi~u hO'nmQt cong d~ may thu h09t dQng dung;hoacCHLJ TH!CH: Thu phan t$p kh6ng dap ung yeu du nay do d6 cac d~u ra cua cac may phat cOngnhU' cac dau vao cua cac may thu dU'Q'ck~t nei tn!c ti~p d~n mQt vai ang ten (dU'Q'cgQi la "pheighep kh6ng gian - air combining").Cac may phat va cac may thu dU'Q'ck~t n5i qua cac bQsong cong d~n nhi~u h()'nmQt ang ten.

Trang di~u ki~n h09t dQng binh thU'ang, n~u mQt BTS dU'Q'cslf dl,Jngcung v6'i rnQth~ th5ng ang ten co ch(Pacac bQ IQcho~c cac ph~n tlf tfch Cl,l'Cc~n thi~t d~ dap (Pngcac yeu c~u clla GSM, cac phep do hQ'pchu~n thi~t y~u co th~ dU'Q'cthllc hi~n tn~nmQt h~ th5ng bao g5m BTS cung v6'i cac ph~n tlf nay, dU'Q'ccung cap rieng cho ml,Jcdlch do ki~m. Trong trU'ang hQ'pnay, phai ch(Png minh rang cau hinh dU'Q'cdo kiE~mla d9i di~n clla h~ th5ng trong h09t dQng binh thU'ang va vi~c dimh gia hQ'pchu~n chiap dl,Jngkhi dung BTS v6'i h~ th5ng ang ten.

8e do kiem hQ'pchu~n thi~t y~u d5i v6'i mQt BTS nhU' v~y co th~ sCI'dl:Jngcac thll tl,JCsau day:

Do ki~m may thu

85i v6'i moi phep do, cac tin hi~u do ki~m dU'Q'cdU'a t6'i cac d~u n5i ang ten clla maythu phai dll I&n sao cho tong cac cong suat clla cac tin hi~u dU'a vao bang v6'i congsuat clla (cac) tin hi~u do ki~m dU'Q'cchi ra trong do kiem.

VI dl,Jve cau hinh do kiem thich hQ'pnhU' Hinh B.2-1.

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QCVN 41:2016/BTTTT

Giao di$n ang ten Rx

Cong :rag~__ 1 Mta'~cnhgl.. do kiem _ ..

: Pi ~ IiBT~I

Ps : Tong (Pi)Ps:Cong suat cong vao dU'O'cchI dinh

Hinh B.2-1 ~Thi~t f~p do ki~m may thu

OBi v6'i cac phat X<,1gia tu d~u nBi ang ten clla may thu, vi$c do ki~m co the dU'O'cthl,l'c hi$n rieng cho tung d~u nBi ang ten clla may thu.

Do ki~m may phat

8Bi v6'i mei phep do, tong clla cac tfn hi$u phat X<,1do mei d~u nBi ang ten may phatphai thoa man yeu c~u hO'p chu~n. Oi~u nay co th~ xac dinh bling cach do rieng cactfn hi$u phat X<,1tu tung d~u nBi ang ten va l<1ytong cac k~t qua, ho~c bling cachphBi ghep cac tfn hi$u va thl,l'Chi$n mQt phep do. M<,1ngphBi ghep phai co cac d~ctfnh (vi dl): bien dQ va pha) d~ dam bao cong su<1tclla tfn hi$u phBi ghep la l6'n nh<1t.

Vi dl) v~ c<1uhlnh do ki~m thich hO'pnhU' Hlnh B.2-2.

Giao dien ang ten TX C x~__ • I ong ra

I BTS I i IM~;~e~h6iI do ki~g'I

Hinh 8.2-2-Thi~t I~p do ki~m may phat

OBi v6'i suy hao xuyen di~u ch~, vi$c do ki~m co the ti~n hanh rieng cho tung d~u nBiang ten cua may phat.

8.2.6. BTS h6 trC?'ki~u di~u ch~ 8-PSK

N~u TRX he trO' 8-PSK thl, tru khi co tuyen bB khac trong cac phep do clIa ml)C 3.3,BTS phai dU'Q'cdo ki~m ca hai ki~u di~u ch~ GMSK va 8-PSK, n~u khong thl phaichung minh dU'O'crling chI c~n do ki~u di~u ch~ GMSK ho~c 8-PSK la dll.N~u BTS co c<1uhlnh he trO' ca TRX he trO' 8-PSK va TRX khong he trO' 8-PSK thlphai tuyen bd sd IU'O'ngcua tung 10<,1iTRX dU'O'cdo ki~m.

8.2.7. BTS h6 trC?'cac ki~u di~u ch~ khac trong ch~ d9 EGPRS2

N~u T~X he trO' cac kieu di~u ch~ khac (QPSK, 16-QAM ho~c 32-QAM) thl, tru khico tuyen bd khac trong cac phep do clla ml)C 3.3, BTS phai dU'O'cdo ki.em 0' GMSKcOng nhU'O' cac kieu di~u ch~ khac do n~u khong thi phai chung minh dU'Q'crling chIc~n do ki~u di~u ch~ GMSK ho~c mQt kieu di~u ch~ Cl) th~ nao do la duoN~u BTS co c<1uhlnh v6'i cac TRX he trO' cac kieu di~u ch~ khac va cac TRX khonghe trO' cac kieu di~u ch~ khac thl phai tfnh rieng cac 10<,1iTRX khac nhau va phaituyen bd rieng re sd ILPO'ngdBi v6'i tung lo~i TRX dU'O'cdo kiem.

8.2.8. T6e d9 ky hi~u

Cac phep do trong yeu c~u nay dLPQ'cap dl)ng ddi v6'i ca c<1uhlnh tde dQ ky hi$ubinh thU'CYngva c<1uhinh tdc dQ ky hi$u cao, tru khi co tuyen bd khac. TrLPcynghO'pcau hinh tdc do ky hi$u cao thi cac yeu c~u trong ml)c 2.2.7 cua quy chu~n nay apdl)ng ddi v6'i cac tin hi$u vao co sCI'dl)ng bQ loc sCl'ad<,1ngxung bang rO\lg tru khi cotuyen bd khac. Cac tin hi$u vao dU'O'cdinh nghTa nhU' sau:

76

QCVN 41:2016/8T11T

BQ loc Slfa d9ng xung bang h~p: T6c dQ ky hi~u cao Slf dl,mg bQ loc slfad9ng xung ph6 h~p.BQ loc slfa d9ng xung bang rQng: T6c dQ ky hi~u cao Slf dl,mg bQ loc slfad9ng xung ph6 rQng.

B.2.9. H6 trg RTTI vMho~c FANR

Tcfltca cac phep do dU'Q'cthllc hi~n d6i vai ccfluhinh BTII va kh6ng co PAN, tru khico tuyen b6 khac. Cac phep do ki~m them khac dU'O'cdU'O'cdanh dcflu rieng la C~ICyeu c~u RTII co va khong co PAN, cOng nhU' BTII co PAN dU'Q'cthllc hi~n n~u BTSdU'O'ckhai bao la co he trO'cac t1nh nang nay.

R2.10. BTS da s6ng mang

N~u BTS dU'O'ccong b6 thuQc nhom BTS da song mang thi ccflu hinh va s6 IU'O'ngcac TRX dU'Q'cSlf dl:mg trong phep do phai tU'O'ng (Png vai ccflu hinh va s6 1U'Q'ngsong mang h09t dQng t?i tlJ'ng d~u n6i ang ten may phat (vi dl,Jt?i mei d~u ra m~iyphat clla may phat ho~c may thu phat da song mang). Cac phep do phai I~p 19id6iv6'i tung d~u n6i ang ten phat n~u no k~t n6i tai may phat da song mango N~u bangthong RF Ian nhM clla BTS nh6 hO'n bang t~n phat lien quan va may phat co khanang h09t dQng tren tcfltca cac ph~n clla bang t~n phat lien quan ho~c di~u chInh d~h09t dQng trong mQt ph~n clla bang t~n phat (bang TX ho?t dQng theo rnl,JCB.1.2) thicac phep do may phat phai dU'O'cI~p 19icho d~n khi do ki~m h~t toan bQ bang t~inphat lien -quan ho~c bang t~n h09t dQng cong b6.

86i vai vi~c do ki~m BTS thuQc nhom BTS da song mang, khai ni~m "khoang cacht~n s6 song mang t6i thi~u" dU'O'cap dl,Jngd6i vai cac trU'ang hO'p co khoang cachsong mang bcfing600 kHz.Cac phep do trong quy chw1n nay dlla tren vi~c do ki~m cac ccfluhinh da song mangv6'i s6 IU'O'ngsong mang BTS he trO', h09t dQng t9i mLrc cong suM l6'n nhcflt theocong b6 d6i vai tung s6 IU'O'ngsong mang va cong suM dU'Q'cphan b6 deu cho GaCsong mango Phai thllC hi~n do d6i v6'i tcfltca cac s6 IU'O'ngv~ song mang BTS ho trO'tn) khi co tuyen b6 khac trong Thll tl,JCdo ki~m.

86i vai BTS thuQc nhom BTS da song mang, nha san xuM phai cong b6 vi~c BTS codap (Png cac yeu c~u clla nhom BTS vung rQng, vung trung binh va/ho~c vung hf~Phay khong. Ngoai ra nha san xuM phai cong b6 cac t6 hO'pve s6 IU'O'ngsong mang,cac cong suM ra va bang thong RF Ian nhcfltclla tr9m g6c d6i v6'i tung d~u n6i. Khicac song mang trong phep do may phat dU'Q'cyeu c~u phan b6 tren toan bang thongRF Ian nhM clla tr9m g6c thl bang thong Ian nhcfltt9i d~u ra may phat tll'O'ng (PngdU'O'cap dl,Jng.

Nha san xuM cOng phai cong b6 n~u BTS thuQc nhom BTS da song mang dU'O'ctrang bj may thu da song mang va n~u BTS co cac dU'ang may thu da song mangtU'O'ngdU'O'ngv~ m~t va tuy~n. Cac nhom BTS vung rQng va vung trung binh co th~khong c~n cong b6 la khong co may thu da song mango Cac phep do phai I~p l<;lid6iv6'i tung d~u n6i ang ten phat n~u no k~t n6i tai may thu da song mango N~u nha sanxu~t cong b6 cac dU'ang may thu da song mang la tU'O'ngdU'O'ngthi chI c~n dU'a cactin hi~u do ki~m vao mQt dU'ang may thu da song mang b~t ky trong s6 cac d~u n6iang ten. N~u bang thong RF Ian nh~t clla BTS nhc hryn bang tan thu lien quan vamay thu co kha nang h09t dQng tren tM ca cac ph~n clla bang t~n thu lien quan ho~cdieu chInh de h09t dQng trong mQt ph~n clla bang tan phat (bang TX hO<;ltdQng theoml,Jc8.1.2) thi cac phep do may thu phai dU'O'cI~p 19icho d~n khi do kiem h~t toanbQ bang t~n thu lien quan ho~c bang t~n hO<;ltdQng);ong b6.

77

QCVN 41:2016/BTTTT

MQt so phep do co cac yeu dIu rieng doi vai BTS thuQc nhom BTS da song mangoTrong trU'cmg hO'p nay cac yeu c~u ap dl,mg doi tai t~t ca cac nhom BTS da songmang (vung rQng, vung trung bJnh va vung nho), tn) khi co tuyen bo khac. N~u kh6ngco yeu c~u rieng do; vai BTS thuQc nhom BTS da song mang thJ ap dl,mg cac yeuc~u doi vai BTS thong thU'ang.

Do; vai phep do ap dl)ng cho BTS thuQc nhom BTS da song mang dU'O'ctrang bimay thu da song mang, trong suot qua trJnh do kiem tru khi co tuyen bo khac, cacnguon ceramay thu yeu c~u dung cho so IlfO'ng Ian nhat cac song mang mong muondlfO'C cong bo phai dU'O'cphan bo va klch hO<;1tdong thai t<;1icac t~n so dlfO'c phanbo cang d~u cang tot tren bang thong RF Ian nh~t ceratr<;1mgoc bao gam ca cac biencera bang thong. So IlfO'ng thl!c t~ va vi$c phan bo cac tfn hi$u d~u vao phai nhlfdlfO'C dinh nghTa cho tung phep do tlfO'ng (Png. Trlfcmg hO'p so IlfO'ng Ian nh~t cactfn hi$u dlfO'c BTS he trO' nhi~u hO'nso IlfO'ng cac tfn hi$u mong muon dlfO'CSLrdl)ngthj cac nguon con l<;1idU'O'cphan bo va klch hO<;1tcho cac t~n so va khong c~n phaido kiem.

C~u hjnh cong bo va tfnh nang tuyen bo phai dlfO'Cdo kiem va phai thoa man doi vaikenh b~t ky Slf dl)ng phan bo nguon va c~u hJnh tIn hi$u vao neu tren. Khi yeu c~ucac nguonmay thu Slf dl)ng trong phep do phai phan bo tren toan bang thong RFcera tr9m goc thJ so IlfO'ng cac tfn hi$u mong muon Ian nhat dlfO'C he trO' phai dlfO'Cphan bo tren toan bang thong Ian nh~t dlfO'C he trO' t<;1id~u vao ang ten thu tlfO'ng(Png.

Cac Thu tl)C do kiem doi vai may thu da song mang cOng ap dl)ng doi vai BTS thuQcnhom BTS da song mang co may thu da song mang he trO'phan bo t~n so khong lientl)c nhlf dlfO'C xac dinh IT ph~n dlfai trong ml)c nay va ap dl)ng cac di~u ki$n c~uhJnh cera BTS trong ml)C nay.

80i vai phep do b~t ky ap dl)ng cho c~u hJnh da song mang trong trlfcmg hO'p BTSthuQc nhom BTS da song mang thJ t~t ca cac song mang phai ap dl)ng di~u ch~GMSK, tru khi co tuyen bo khac.

Trong cac Thu tl)C do kiem lien quan d~n phat X<;1kh6ng mong muon trong bang, VIdl) gam cac phi) do di~u ch~ va t<;1pam bang rQng, cac. phat X<;1gia va suy hao xuyendi~u ch~ thJ phai ap dl)ng ch~ dQ tach song RMS de do kiem. Ch~ dQ tach song phaidlfO'C tuyen bo trong bao cao do kiem.

Nha san xuM phai khai bao vi$c BTS thuQc nhom BTS da song mang co he trO' phanbo t~n so khong lien tl)C hay khong, la phan bo dlfO'Cxac dinh la hai nhom con cachnhau It nh~t 5 MHz.

8.2.11. BTS h6 tr9' ch~ d9 VAMOSc~c yeu c~u khong ap dl)ng doi vai cac kenh trong ch~ dQVAMOS tru khi co tuyenbo ra rang. Neu cac yeu c~u dlfO'C ap dl)ng thJ phai ap dl)ng cho ca hai kenh VAMOSphI}.

T~t ca cac phep. do may thu phai dU'Q'cthllc hi$n vai hai ang ten phan t~p thu vakh6ng co Sl! m~t tU'O'ngquan ho$c m~t can bang v~ dQ tang Ich giCPahai nhanh thu.Cac phep do may thu va may phat phai dU'Q'cthl)'c hi$n vai TSC-5 tCrbQ TSC 1 trenkenh VAMOS phI) 1 va TSC-5 tt:PbQTSC 2 tren kenh VAMOS phI) 2.Ca hai kenh phI)phai SLPdl)ng cac chuei bit gia ngau nhien dQc l~p cho cac bit dU'Q'cma hoa. .N~u TRX he trO' AQPSK thJ, trCrkhi co tuyen bo khac trong cac phep do ceraml)c 3.3,thj no phai dLPO'cdo kiem cY GMSK cOng nhU' IT APQSK.

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QCVN 41 :2016/BTTTT

N~u BTS co c<fluhinh v&i cac TRX he trQ'APQSK va cac TRX kh6ng he trq APQSKthl phai tinh rieng cac 109iTRX khac nhau va phai tuyen b5 rieng re s5 IlfQ'ng d5i v01itung 109iTRX dlfQ'Cdo ki~m.Ch~ d9 VAMOS kh6ng ap dl:mg d5i v&i pico-BTS.

79

m~'IIITC",'~"''''><' -. _ .• '.•.•,. ..• - .• -""~,,. ••• ,..." ..••••:,••--.".

QCVN 41:2016/BTTTT

PHl) Ll)C C(Quy dinh)

M6i trlP<Yngdo ki~m

86i v6'i moi phep do trong quy chuc1nnay, cac di~u ki$n m6i tnl'ang dlJ'Q'cthiet I~p doBTS phai dlJ'Q'Cquy dinh r6. Cac m6i trlJ'ang phai nhlJ' quy dinh trong EN 60721.

C.1. M6i trlP<Yng do ki~m binh thlP<Yng

Trang di~u ki$n m6i trlJ'ang do ki~m binh thlJ'ang, phep do phai dlJ'Q'cthllc hi$n v6'imQt t6 hQ'p bM ky clia cac di~u ki$n m6i trlJ'ang n£m trong khoang cac gi6'i h,;l.nthapnhat va cao nhat nhlJ' quy dinh trong Bang C.1-1.

Bang C.1-1 - Cae di~u ki~n gi&i h~n d6i v&i m6i trU'<Yngdo ki~m binh thlP<Yng

f)i~u ki~n Th~p nh~t Cao nh~tAp suat khf quy~n 86 kPa 106 kPaNhi$t dQ 15°C 30°C8Q c1mtlJ'O'ngd6i 20% 85%Ngu6n nu6i Danh dinh, theo khai bao clla nha san xuM

Oai ap suat khf quy~n, nhi$t dQ va dQ c1mth~ hi$n Sll thay d6i l6'n nhat co th~ dien ratrang m6i trU'ang kh6ng dlJ'Q'cki~m soat clia phong thLr nghi$m. Neu kh6ng th~ duytri dlJ'Q'c cac tham s6 nay trong cac giai h,;1ndlJ'Q'cchi ra thi cac gia trj thllc te phaidU'Q'cghi '<;1itrong bao cao do ki~m.CHU THICH: vr dl,l, di~u ki$n neu tren co the 1<3trU'6'ng hQ'p do kiem phat X<;1buc X<;1t<;1ikhu VI!C dokiem rna.

C.2. Moi trlP<Yng do ki~m t&i h~n

Nha san xuM phai khai bao me)ttrong cac trlJ'ang hQ'psau:

a) LO<;1ithiet bi d<;1idi$n .cho thiet bi dlJ'Q'cdo ki~m, theo EN 300 019-1-3, (Ky thu~tthiet bi; Cac di~u ki$n m6i trlJ'ang va do ki~m m6i trlJ'ang d6i v6'i thiet bi vien th6ng,ph~n 1-3: Phan lo?i cac di~u ki$n m6i trlJ'ang, SLrdl:mg c6 dinh t<;1icac vi tri dU'Q'cbaov$ v~ thai tiet);b) LO<;1ithiet bi d<;1idi$n cho thiet bi dlJ'Q'cdo ki~m, theo EN 300 019-1-4, (Ky thu~tthiet bi; Cac di~u ki$n m6i trlJ'ang va do ki~m m6i trlJ'ang d6i v6'i thiet bi vien th6ng,ph~n 1-4: Phan lo?i cac di~u ki$n rn6i trlJ'ang, SLrdt.mg c6 dinh t<;1icac vi trf kh6ngdlJ'Q'cbao v$ v~ thai tiet);c) 86i vai thiet bi kh6ng tuan thu theo mQt phan lo?i nao trong EN 300019-1-0, cac10<;1ico lien quan trong tai li$u EN 60721 v~ nhi$t dQva dQ c1mphai dlJ'Q'Ckhai bao.CHU THlcH: SI! suy giam tfnh nang do cac dieu ki~n m6i trU'cmg nam ngoai cac dieu ki~n hO;;Jtd(Jng chu~nkh6ng dU'qc do kiem trong quy chu~n nay. Cac dieu ki~n m6i trU'ang ni3y co the dU'qc tuyen b5 va do kiem rieng.

C.2.1. Nhi~t dQ t&i h~n

Khi do ki~m & di~u ki$n nhi$t de) t6'i h?n, do ki~m phai dlJ'O'cthllc hi$n t?i nhi$t de)ho?t dQng thap nhat va cao nhcftttheo khai bao clla nha san xuM.

Nhi$t de)thcftp nhcftt:

Phep do phai dlJ'Q'cthl,1'chi$n v6'i thiet bj do ki~m rnai trlJ'cyngva cac phU'O'ng phapt?O ra cac hi$n tU'Q'ng rnai trlJ'cyngtac dQng vao thiet bL tuan thu thu tl:JCdo cua EN300019-2-3 hOc;lCEN 300019-2-4 phan cac phep do Ab/Ad: I?nh. Thiet bi phai dlJ'Q'cduy tri trong dieu ki$n on dinh trong su6t qua trinh do kiern.

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QCVN 41:2016/BTTTT

Nhi$t dQcao nhat:

Phep do phai dU'Q'cthl)'c hi$n v&i thiet bj do kiem m6i tmcmg va cac phU'O'ngphapt<;!ora cac hi$n tU'Q'ngm6i tmcmg tac dQng vao thiet bj, tUc3nthu thll tl.Jcdo clla EN300019-2-3 ho~c EN 300019-2-4 phtm cac phep do Bd kh6 n6ng. Thiet bi phai dU'Q'cduy trl trong di~u ki$n 5n dinh trong sueStqua trlnh do kiem.CHU THlcH: Thiet bi dLJ'qckhuyen nghi ho~t dQng on dinh trLJ'6'ckhi chuy~n sang nhi~t dQ ho~t donHth~p han.

C.3. Ngu5n cung c~pNeu phai do kiem trong di~u ki$n ngu6n t&i hc;ln,do kiem phai dU'Q'cthl)'c hi$n t<;!icacgi6'i h<;!nchucfmtren va dU'&i clIa di$n ap hOc;ltdQng clIa thiet bj dU'Q'cdo kiem theokhai bao clIa nha san xuat.

Gi6'i h~n di~n ap trenThiet bi phai dU'Q'Ccap ngu6n v6'i mLPcdi$n ap bang v6'i gi6'i hc;lntren theo khai baoclIa nha san xuat (do t<;!ivi tri cap ngu6n cho thiet bi). Cac phep do phai du'Q'c tienhanh t<;!icac gi6'i h<;!nnhi$t dQ thap nhat va cao nhat {y tr<;!ngthai 5n djnh theo khaibao clIa nha san xuat. PhU'O'ngphap do phai tUc3nthll theo EN 30001 9-2-3 ho~c EN300019-2-4, ph<1nphep do Ab/Ad: I<;!nhva phep do Bb/Bd: kh6 n6ng.

Gi6'i h~n di~n ap dU'6'iThiet bi phai dU'Q'Ccap ngu6n v&i mLPcdi$n ap bang v6'i gi6'i h<;!ndU'&i theo khai baoclIa nha san xuat (do t<;!ivi tri cap ngu6n cho thiet bi). Cac do kiem phai dU'Q'ctienhanh v&i cac gi6'i h<;!nnhi$t dQ thap nhat va cao nhat {y tr<;!ngthai 5n dinh theo khatibao clla nha san xuat. PhU'O'ngphap do phai tUc3nthu theo EN 300019-2-3 ho~c lEN300019-2-4, ph<1nphep do Ab/Ad: I<;!nhva phep do Bb/Bd: kh6 n6ng.

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•.

QCVN 41:2016/BTTTT

THO' Ml)G TAl L1f;UTHAM KHAo

[1] QCVN 41 :2011/BTITT, Quy chuan ky thu~t qu6c gia v~ thiet bj tr<;img6c thong tindi dQng GSM.

[2] ETSI EN 301 502 V12.1.1 (2015-03) Global System for Mobile communications(GSM); Harmonized EN for Base Station Equipment covering the essentialrequirements of article 3.2 of the R&TIE Directive.

[3] Directive 1999/51EC of the European Parliament and of the Council of 9 March1999 on radio equipment and telecommunications terminal equipment and the mutualrecognition of their conformity.

[4] IDA - Technical Specification for GSM Base Station and Repeater Equipment -712009.

[5] HKTA 1020 ISSUE 07 (11-2011) - Performance specification of the Base StationSystem (BSS) and repeater equipment for use in the public mobile communicationsservice employing global system for mobile communications (GSM) or in the personalcommunications serVice (PCS).

[6] Saudi Arabic - CITC Technical Specification - RI002 - issue 2 (10101/2010) -Specification for GSM Base Station and Ancillary Equipment.

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