GSM Wireless PS Performance Analysis Guide V1.0(20120615)

5/23/2018 GSM Wireless PS Performance Analysis Guide V1.0(20120615)

GSM Wiress PS PerformanceAnalysis Guide

Issue V1.0

Date 2011-12-31

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&' iress P' Perfor*an#e +nalysis &uide Cange History

Change History

Date Issue Description Author

2011-12-31 V1.0 Co*pleted te draft. 'en Huafang$ ,ie ing

2012-01-20 V1.1 odified a##ording to

reiew #o**ents.

'en Huafang



ii


&' iress P' Perfor*an#e +nalysis &uide 2 +nalysis 'yste*

Contents

Change History..................................................................................................................................ii

Change History..................................................................................................................................ii

1 Overview..........................................................................................................................................1

1.1 Introdu#tion.............................................................................................................................................................1

1.2 '#ope.......................................................................................................................................................................1

1.3 Data 'our#es............................................................................................................................................................1

2 Analysis System...............................................................................................................................1

2.1 /PI Perfor*an#e........................................................................................................................................ ......... ....1

2.1.1 +##essiility.......................................................................................................................................................2

2.1.2 etainaility.......................................................................................................................................................2

2.1.3 "rans*ission Perfor*an#e................................................................................................................................2

2.2 ser 4perien#e.......................................................................................................................................................3

2.2.1 %%C "rougput................................................................................................................................................5

2.2.2 Delay..................................................................................................................................................................5

2.2.3 Cell esele#tion.................................................................................................................................................5

2.3 "raffi# odel.......................................................................................................................................................... .5

2.3.1 6'C "rougput................................................................................................................................................5

2.3.2 PDCH "rougput.............................................................................................................................................7

2.3.3 PDCH 6earing ffi#ien#y............................................................................................................................ .....7

2.3.5 8u*er of "69 stalis*ents Per ser During Pea: Hours..........................................................................7

2.3.7 +erage "rougput Per ser During Pea: Hours............................................................................................7

3 KI Analysis an! Optimi"ation.....................................................................................................#

3.1 /PI '#oring................................................................................................................................................... ..........;

3.2 /PI +nalysis and



5.1.5 Cannel 'atisfa#tion Degree +nalysis.............................................................................................................23

5.2 Delay +nalysis.......................................................................................................................................................23

5.3 Cell esele#tion.....................................................................................................................................................25

) *etwor+ Characteristics &valuation...........................................................................................2,7.1 ' 'upport Capaility aluation........................................................................................................................2>

7.1.1 ' 9re@uen#y 6and 'upport Capaility.........................................................................................................2>

7.1.2 ' ulti-ode 'upport Capaility................................................................................................................2;

7.1.3 ' n#ryption +lgorit* 'upport Capaility.............................................................................................. ..2;

7.1.5 ' P' 'eri#e Capaility.................................................................................................................. .......... ...2;

7.2 P' Cara#teristi#s +nalysis............................................................................................................................ .......2A

7.2.1 +erage "69 Duration +nalysis......................................................................................................................2A

7.2.2 odel apping 6etween 8u*er of "69 stalis*ents and "raffi#..........................................................2A

7.2.3 Duty Cy#le of Downlin: "69 elease Delay.......................................................................................... .......2?

7.2.5 +nalysis on Proportions of Du**y 6lo#:s and 'ignaling 6lo#:s.............................................................. ...30

7.3 ireless esour#e +nalysis...................................................................................................................................30

7.3.1 CCCH esour#e +nalysis................................................................................................................................30

7.3.2 ireless esour#e +nalysis.............................................................................................................................30

, Appen!i'........................................................................................................................................31

>.1 elated "ools............................................................................................................................................... ..........31

>.2 eferen#e Do#u*ents............................................................................................................................................31

>.3 6'C Para*eters.................................................................................................................................................. ...32

>.3.1 P' 6asi# Para*eters............................................................................................................................... .........32



2



1 Overview1.1 Intro!uction

"is do#u*ent des#ries te wireless networ: P' perfor*an#e analysis syste* as well as its

analysis and opti*i=ation *etods$ and proides te in-dept analysis of fa#tors affe#ting

networ: perfor*an#e. It proides guidelines for P' perfor*an#e analysis$ elping @ui#:ly anda##urately isolate and lo#ate prole*s and perfor* opti*i=ation to i*proe deliery

effi#ien#y.

"e wireless networ: P' perfor*an#e analysis syste* #onsists of /PI perfor*an#e (in#luding

a##essiility$ retainaility$ and trans*ission perfor*an#e)$ user e4perien#e (in#luding logi#al

lin: #ontrol (%%C) trougput$ delay$ and #ell resele#tion)$ traffi# *odel$ and networ:

#ara#teristi#s.

6'C /PIs are used as data sour#es analy=ed in tis do#u*ent. "e &'B8etwor:+udit tool

of te



Data Source /emar+s How to Otain Data Collection /ange

using te



2 Analysis System2.1 KI er0ormance

8etwor: /PI perfor*an#e in#ludes a##essiility$ retainaility$ and trans*ission perfor*an#e.

It is used to refle#t te i*pa#t of trans*ission @uality on te * and &-+is interfa#es and

resour#es usage on networ: @uality in different pases of P' seri#es.

-ale 1.18etwor: /PIs

Category KI /ecommen!e! alue

+##essiility

plin: &P' "69 stalis*ent 'u## ate E ?7F

Downlin: &P' "69 stalis*ent 'u## ate E ?7F

plin: &P' "69 stalis*ent 'u## ate E ?7F

Downlin: &P' "69 stalis*ent 'u## ate E ?7F

plin: "69 Congestion ate G 3F

Downlin: "69 Congestion ate G 3F

plin: &P' "69 Congestion ate G 3F

Downlin: &P' "69 Congestion ate G 3F

etainaility

plin: &P' "69 Call Drop ate G 7F

Downlin: &P' "69 Call Drop ate G 7F

% &P' "69 drop rate (F) G 7F

D% &P' "69 drop rate (F) G 7F

"rans*issionperfor*an#e

etrans*ission rate of % %C data lo#: (F) G 7F

etrans*ission rate of D% %C data lo#: (F) G 7F

etrans*ission rate of % &P' %C datalo#: (F)

G 7F



1



Category KI /ecommen!e! alue

etrans*ission rate of D% &P' %C data

lo#: (F)

G 10F

ate of "rans*itted rror 9ra*es G 0.70F

2.1.1 Accessiility

"e a##essiility *easures te networ: a##ess su##ess rate of 's and refle#ts te i*pa#t of

trans*ission @uality on te * and &-+is interfa#es and resour#e usage on networ: a##essof 's. If te alues of a##essiility /PIs are not witin te nor*al range$ te networ: a##ess

su##ess rate and networ: a##ess delay of 's as well as #ore networ: /PIs (su# as te

atta# su##ess rate$ PDP a#tiation su##ess rate$ and + su##ess rate) *ay deteriorate. +s aresult$ 's fail to a##ess te networ:.

+##essiility /PIs are defined fro* te aspe#ts of "69 estalis*ent su##ess rate and "69

#ongestion rate. "e for*ulas for #al#ulating te "69 estalis*ent su##ess rate and "69#ongestion rate are as follows

"69 estalis*ent su##ess rate 8u*er of su##essful "69 estalis*entsJ8u*er of "69estalis*ent atte*pts

"69 #ongestion rate 8u*er of "69 estalis*ent failures due to no #annelaailaleJ8u*er of "69 estalis*ent atte*pts

"e "69 #ongestion rate indi#ates weter PDCHs are suffi#ient.

"e for*ulas for #al#ulating te uplin:Jdownlin: &P'J&P' "69 estalis*ent su##ess rate anduplin:Jdownlin: &P'J&P' "69 #ongestion rate are si*ilar to te pre#eding for*ulas.

2.1.2 /etainaility

etainaility *easures #all drops on PDCHs and refle#ts te i*pa#t of trans*ission @ualityon te * and &-+is interfa#es and resour#e usage on seri#es of 's. If te alues of

retainaility /PIs are not witin te nor*al range$ te data trans*ission rate and delay of

's as well as #ore networ: /PIs (su# as atta# su##ess rate$ PDP a#tiation su##ess rate$and + su##ess rate) *ay deteriorate. +s a result$ 's fail to a##ess te networ:.

"e for*ula for #al#ulating te "69 anor*al release rate is as follows

"69 anor*al release rate 1 K 8u*er of "69 nor*al releasesJ8u*er of su##essful "69estalis*ents

"e for*ulas for #al#ulating te uplin:Jdownlin: &P'J&P' "69 anor*al release rate are si*ilar to te

pre#eding for*ulas.

2.1.3 -ransmission er0ormance

"rans*ission perfor*an#e *easures networ: trans*ission @uality and refle#ts te i*pa#t of

trans*ission @uality on te * and &-+is interfa#es and resour#e usage on seri#es of 's.

If te alues of /PIs related to trans*ission perfor*an#e are not witin te nor*al range$ te

networ: a##ess su##ess rate and data trans*ission rate *ay deteriorate and te delay *ay



2



prolong.

"rans*ission perfor*an#e /PIs are defined fro* te aspe#ts of %C data lo#:

retrans*ission rate and trans*ission fra*e error rate (9).

"e for*ulas for #al#ulating te %C data lo#: retrans*ission rate are as followsetrans*ission rate of % %C data lo#: 1 K (8u*er of Valid plin: %C Data 6lo#:s

sing C'1 L 8u*er of Valid plin: %C Data 6lo#:s sing C'2 L 8u*er of Valid

plin: %C Data 6lo#:s sing C'3 L 8u*er of Valid plin: %C Data 6lo#:s singC'5)J"otal 8u*er of plin: &P' %C Data 6lo#:s

etrans*ission rate of % &P' %C data lo#: 1 K ("otal 8u*er of Valid plin:

&P' C'1 %C Data 6lo#:s L M L "otal 8u*er of Valid plin: &P' C'? %CData 6lo#:s)J"otal 8u*er of plin: &P' %C Data 6lo#:s

"e for*ula for #al#ulating te retrans*ission rate of downlin: &P' %C data lo#:s issi*ilar to te for*ula for #al#ulating te retrans*ission rate of uplin: &P' %C data

lo#:s. "e for*ula for #al#ulating te retrans*ission rate of downlin: &P' %C data

lo#:s is si*ilar to te for*ula for #al#ulating te retrans*ission rate of uplin: &P' %Cdata lo#:s.

"e for*ula for #al#ulating te 9 is as follows

"rans*ission fra*e error rate (8u*er of e#eied

plin: "rougput of &P' sers %%C PD E 57

Downlin: "rougput of &P' sers %%C PD E 120

Delay +erage delay in seri#e intera#tion response (s) G 0.32

Cell

resele#tion

% &P' "69 drop rate due to 9lus G 1F

D% &P' "69 drop rate due to 9lus G 1F





3



2.2.1 C -hroughput

%%C trougput refle#ts te a#tual trougput e4perien#ed y users on te 6'' side. It also

refle#ts te i*pa#t of trans*ission @uality on te * and &-+is interfa#es and resour#e

usage on te user trougput. If te %%C trougput is low$ user e4perien#e deteriorates.eanwile$ seri#e-related #ounters$ su# as *ulti*edia *essage sendJre#eie su##ess rate$

we page openJrefres su##ess rate$ and we page display period$ *ay e adersely affe#ted.

%%C trougput is affe#ted y PDCH single-ti*eslot rate$ "69 *ultiple4ing degree$ and

#annel satisfa#tion degree.

2.2.2 Delay

Delay *easures te interal etween a seri#e re@uest and a seri#e response and refle#ts tei*pa#t of trans*ission @uality on te * and &-+is interfa#es$ resour#e usage$ and #ore

networ: prole*s on user e4perien#e. If te delay is too long$ user e4perien#e deteriorates.eanwile$ #ore networ: /PIs and /PIs related to seri#e su##ess rate$ su# as atta#

su##ess rate$ PDP a#tiation su##ess rate$ + su##ess rate$ *ulti*edia *essage sendJre#eiesu##ess rate$ we page openJrefres su##ess rate$ and we page display period$ *ay e

adersely affe#ted.

9ro* te 6'' side$ delay *ay e generated y te downlin: 6''$ uplin: 6''$ or #ore

networ:.

Delay generated y te downlin: or uplin: 6'' is #aused y te poor trans*ission @uality on

te * and &-+is interfa#es and resour#e insuffi#ien#y. Delay generated y te #ore

networ: is #aused y resour#e insuffi#ien#y on te #ore networ: or networ: prole*s.

2.2.3 Cell /eselectionCell resele#tion *easures te fre@uen#y of #ell resele#tion during seri#e pro#essing. 'eri#es

are te*porarily interrupted wen #ell resele#tion o##urs. "is deteriorates user e4perien#e.

2.3 -ra00ic o!el

2.3.1 4SC -hroughput

6'C trougput refle#ts te total 6'C trougput. Download seri#es a##ount for a large

proportion of P' seri#es$ and terefore you need to fo#us on te /PIs "rougput ofDownlin: &P' %C Data 6lo#:s per 6'C(yte) and "rougput of Downlin: &P'%C Data 6lo#:s per 6'C(yte).

"e two /PIs are displayed in &P' 8etwor:



-ale 1.1 elated /PIs

-hroughput o0

%plin+ 5/S /C

Data 4loc+s per

4SC6yte7

-hroughput o0

Downlin+ 5/S

/C Data 4loc+s

per 4SC6yte7

-hroughput o0

%plin+ &5/S

/C Data 4loc+s

per 4SC6yte7

-hroughput o0

Downlin+ &5/S

/C Data 4loc+s

per 4SC6yte7

2.3.2 DCH -hroughput

PDCH trougput refle#ts te trougput #arried on ea# PDCH. "e for*ula for #al#ulatingte PDCH trougput is as follows

PDCH trougput (Downlin: &P' %%C trougput per 6'C L Downlin: &P' %%Ctrougput per 6'CJ+erage nu*er of o##upied PDCHs

2.3.3 DCH 4earing &00iciencyPDCH earing effi#ien#y refle#ts PDCH usage. "e PDCH earing effi#ien#y de#reases wit

a de#rease in te PDCH usage. If traffi# in a #ell is #ongested due to insuffi#ient resour#es$you #an #o*press te nu*er of PDCHs to aoid traffi# #ongestion witout affe#ting te user

trougput. "e for*ula for #al#ulating te PDCH earing effi#ien#y is as follows

PDCH earing effi#ien#y PDCH trougputJ3>00

2.3.$ *umer o0 -48 &stalishments er %ser During ea+ Hours

"e /PIs 8u*er of plin: "69 stalis*ent Per ser on 6usy"i*e and 8u*er of

Downlin: "69 stalis*ent Per ser on 6usy"i*e refle#t ow often a "69 estalises

during pea: ours. "ese /PIs elp you learn aout seri#e pro#essing during pea: ours.

"e /PIs are displayed in te ser odel tale in te %ser o!elwor:seet of te



"e /PIs are displayed in te ser odel tale in te %ser o!elwor:seet of te



3 KI Analysis an! Optimi"ation3.1 KI Scoring

/PI s#oring elps you deter*ine te status of networ: /PIs and identify te :ey /PIs

affe#ting s#oring.

6'C-leel /PIs and /PI s#oring are displayed in te *etwor+ er0ormance Au!it

wor:seet of te



8ote

6aseline alue "e aseline alue for "69 stalis*ent 'u## ate is ?7F.

+#tual alue "e a#tual alue is otained a##ording to te statisti#al alue of te lie

networ:. "e alue of ate of 9ailed "69 stalis*ents due to ' 8o esponse on te lienetwor: is e4#essiely iger tan tat of ate of 9ailed "69 stalis*ents due to



-ale 1.3 uantified analysis on a##essiility /PIs of top 8 #ells

4SC *ame -op Contriutio

n Degree o0

-O Cells

4SC -48

&stalishmen

t Succ /ate

a0terOptimi"e

4SC -48

&stalishmen

t Succ /ate

a0terOptimi"e

DCH

resource

4SC -48

&stalishmen

t Succ /ate

a0terOptimi"e S

*o /sponse

4SC -48

&stalishment

Succ /ate

a0terOptimi"e

Other reason

'H6'C>

Perfor*an#e after

opti*i=ing

top 7 #ells

25.7;F ?A.?AF ?A.AAF ?A.?1F ?A.?7F

'H6'C

>

Perfor*an#

e after

opti*i=ingtop 10 #ells

5;.A5F ?A.??F ?A.AAF ?A.?2F ?A.?7F

'H6'C

>

Perfor*an#

e afteropti*i=ing

top 20 #ells

0.00F ?A.AAF ?A.AAF ?A.AAF ?A.AAF

"e following figure sows an e4a*ple of data analysis on 6'C220 in &er*any .?3F.

If te per#entage of failed "69 estalis*ents due to no resour#es for #ell 73 is 2F$ te "69

estalis*ent su##ess rate for te #ell in#reases to ;;.0;F and te alue of te 6'C-leel /PIin#reases to ?1.A>F. 9urter opti*i=e te "69 estalis*ent su##ess rate due to no '

response. en te /PI alue *eets 3F of te aseline alue$ te #ell /PI in#reases to

?5.;>F$ and te 6'C /PI in#reases to ?7.11F.



?



Accessiility KI er0ormance Analysis

"e failure #auses of a##essiility /PIs related to "69 estalis*ent failure rate #an e

analy=ed ased on te data in te following wor:seets

4SC %plin+ &5/S -48 &stalishment Succ /ate Analysis 4SC %plin+ 5/S -48 &stalishment Succ /ate Analysis

4SC Downlin+ &5/S -48 &stalishment Succ /ate Analysis

4SC Downlin+ 5/S -48 &stalishment Succ /ate Analysis

+s sown in "ale 1.5and "ale 1.7(using uplin: &P' /PIs as an e4a*ple)$ tea##essiility /PIs related to "69 estalis*ent failure rate are as follows

ate of 9ailed plin: &P' "69 stalis*ents due to 8o Cannel (*ain #auseresour#e #ongestion)

ate of 9ailed plin: &P' "69 stalis*ents due to ' 8o esponse (*ain #ause

poor trans*ission @uality on te * interfa#e$ anor*al trans*ission on te &-+is

interfa#e$ and CCCH #ongestion)

ate of 9ailed plin: &P' "69 stalis*ents due to



In nor*al #ases$ te &P' PDCH #ongestion rate is al*ost te sa*e as te &P'PDCH #ongestion rate. If te &P' PDCH #ongestion rate is ig ut te &P'

PDCH #ongestion rate is low$ #e#: weter &P' PDCHs are insuffi#ient e#ause

&P' dedi#ated PDCHs or &P' preferred PDCHs are #onfigured. en tiso##urs$ #ange &P' dedi#ated PDCHs or &P' preferred PDCHs to #o**on

&P' PDCHs and set Allow & Down 5 %p Switchto :es.

If traffi# in te underlaid su#ell of a #on#entri# #ell is #ongested$ set Dynamic ChannelConversion arameter o0 Concentric Cellto Only convert !ynamic channel at O.

.3.1P' 6asi# Para*eters.

627 -48 &stalishment 8ailures Due to *o S /esponse

Due to poor trans*ission @uality of te * interfa#e$ anor*al &-+is trans*ission orCCCH #ongestion$ "69 estalis*ent fails wen te ' fails to re#eie or parse downlin:

*essages or te 6'C fails to parse te uplin: response *essages fro* te ' #orre#tly.

"ese "69 estalis*ent failures are #ounted as "69 estalis*ent failures due to no 'response.

Poor trans*ission @uality of te * interfa#e

ea: #oerage$ interferen#e$ and i*alan#e etween te uplin: and te downlin: resultin poor trans*ission @uality of te * interfa#e. 9or details aout ow to analy=e and

opti*i=e te trans*ission @uality of te * interfa#e$ see te Guide to GSM Network

Evaluation of Coverage and Interference.

+nor*al &-+is trans*ission

If it errors or #annel out-of-syn#roni=ation o##urs$ uplin: and downlin: data fails to

e de#oded #orre#tly. +s a result$ "69 estalis*ent fails. In addition$ te lin: delayprolongs wen te &-+is trans*ission is anor*al. en tis o##urs$ te ti*er at te

re#eiing end *ay e4pire. +s a result$ "69 estalis*ent fails.

9or details aout ow to analy=e te &-+is trans*ission$ see &-+is "rans*ission.

CCCH #ongestion

Rou #an deter*ine weter an assign*ent *essage is deliered nor*ally ased on te

pa#:et i**ediate assign*ent su##ess rate and te 'u##ess ate of P+CCH assign*ent

su##ess rate. "ale 1.>and"ale 1.; list te /PIs related to 6'C-leel and #ell-leeluplin: assign*ent su##ess rates.

-ale 1., 6'C uplin: assign*ent su##ess rate analysis

4SC *ame Success0ul %

Assignment /ate 6;7

Success /ate o0 %

S Imme!iate

Assignment

Success /ate o0 %

Assignment on

ACCH



11



-ale 1.# plin: assign*ent su##ess rate analysis

4SC

*ame

Cell

*ame

Success0ul

%

Assignment

/ate 6;7

*umer o0

%

Assignments

Success

/ate o0 %

S

Imme!iateAssignment

*umer o0

% S

Imme!iate

Assignments

Success

/ate o0 %

Assignment

on ACCH

Success0ul

%

Assignments

on ACCH

If te pa#:et i**ediate assign*ent su##ess rate is low$ ut te pa#:et i**ediateassign*ent su##ess rate on te P+CCH is ig$ #e#: weter CCCH oerload o##urs. If

CCCH oerload o##urs$ te I**ediate +ssign*ent *essages sent oer te CCCH are

dis#arded. +s a result$ "69 estalis*ents fail. Rou #an #e#: weter CCCH oerloado##urs ased on te Cell CS Service aging Deletion Chec+and aging Deletions

/ate 0or S Services Analysiswor:seets.

If CCCH oerload o##urs$ set te CCCH load tresold to a large alue to aoid "69

estalis*ent failures due to flow #ontrol. "e *ost effe#tie *etod is to in#rease te

nu*er of e4tended 6CCHs.

In addition$ in#rease te alue of ti*er "31>A during two-pase a##ess. "is preents's fro* fre@uently sending #annel re@uests$ and alleiate CCCH oerload.

"o redu#e "69 estalis*ent failures due to no #annel aailale and no ' response$i*proe te trans*ission @uality of te * and &-+is interfa#es. +lternatiely$ opti*i=e te

settings of te following para*eters

In#rease te alue of "31>A for a satellite #ell or a #ell were trans*ission prole*s are

serious and diffi#ult to resole$ su# as a #ell were te trans*ission delay oer te &-+is interfa#e is long and unstale.

In#rease te alues of -31(2$ /elease Delay o0 Downlin+ -486ms7$ /elease Delay o0

*on



Analysis on A00ecting ercentage o0 /etainaility KIs

-ale 1.1 +nalysis on 6'C-leel retainaility /PIs

KI 4aselinealue Actualalue Deviation A00ectingercentage

etainaility/PIs

"69 Call Drop ate 7F

ate of "69 Drop

Due to ' 8o

esponse

2.7F

ate of "69 Drop

Due to 9%'H0.;F

ate of "69 Drop

Due to ''P8D0.7F

J

ate of "69 DropDue to 8o esour#e

0.7F

ate of "69 Drop

Due to



-ale 1.2 "op 8 #ells wit poor retainaility

/ate o0 Cell

-48

&stalishme

nt Successtimes to 4SC

/ate

o0

Cell

-48Drop

-ime

s to

4SC

/ate o0

Cell -48

Drop

-imes6*o

/esource

7 to 4SC

/ate o0

Cell -48

Drop

-imes6S *o

/esponse

7 to 4SC

/ate o0 Cell

-48 Drop

-imes68%S

H7 to 4SC

Cell

-48

Call

Drop/ate

a0ter

Optimi"

e

Cell

-48

Call

Drop/ate

a0ter

Optimi"

e DCH

/esourc

e

Cell

-48

Call

Drop/ate

a0ter

Optimi"

e S *o

/sponse

Cell -48

Call

Drop

/atea0ter

Optimi"

e

8%SH

9uanti0ie! Analysis on Improvements in /etainaility KIs

uantified analysis on i*proe*ents in retainaility /PIs @uantifies ow *u#

i*proe*ents 6'C /PIs #an *a:e wen /PIs of top 8 #ells rea# teir aseline alues. "e"69 #all drops due to arious reasons #an e #al#ulated ased on teir aseline alues.

-ale 1.3 uantified analysis on i*proe*ents in retainaility /PIs

4SC *ame -op Contriution

Degree o0 -O

Cells

4SC -48

Call Drop

/ate a0ter

Optimi"e

4SC -48

Call Drop

/ate a0ter

Optimi"eDCH

/esource

4SC -48

Call Drop

/ate a0ter

Optimi"eS *o

/sponse

4SC -48

Call Drop

/ate a0ter

Optimi"e8%SH

'H6'C> Perfor*an#e

after opti*i=ingtop 7 #ells

1>.1?F 1.2>F 1.2AF 1.2AF 1.2?F

'H6'C> Perfor*an#e


27.23F 1.2>F 1.2AF 1.2;F 1.2?F

'H6'C> Perfor*an#e


3>.25F 1.2>F 1.2AF 1.2;F 1.2?F

/etainaility KI Analysis an! Optimi"ation

9or te #ells wit unsatisfied #all drop rate$ analy=e te #ause of #all drops ased on te

analysis ite*s in te &5/S=-48=CA=D/O=/A-&and

5/S=-48=CA=D/O=/A-&wor:seets."ale 1.5 and "ale 1.7list te /PIs related

to 6'C-leel and #ell-leel "69 anor*al releases. 9ollowing uses uplin: &P' "69

anor*al release as an e4a*ple.



-ale 1.$ +nalysis on uplin: &P' "69 anor*al releases

4SC *ame %plin+

&5/S -48

Anormal

/elease *oChannel

/esource

%plin+ &5/S

-48 Anormal

/elease

Suspen!

%plin+

&5/S -48

Anormal

/elease 8lush

%plin+

&5/S -48

Anormal

/elease S *o/esponse

-ale 1.) "op 8 #ells wit ig uplin: &P' "69 anor*al release rate

4SC

*ame

Cell

*ame

%plin+

&5/S

-48Anormal

/elease *o

Channel

/esource

%plin+

&5/S

-48Anormal

/elease

Suspen!

%plin+

&5/S

-48Anormal

/elease

8lush

%plin+

&5/S

-48Anormal

/elease S

*o

/esponse

%plin+

&5/S

-48 CallDrop

D

&5/S

-48 !roprate 6;7

617 -48 Anormal /eleases Due to *o S /esponse

*31>1$ *31>3$ and *31>)are #ounters for te 6'C to *easure uplin: and downlin: "69

@uality. If anor*al "69 releases o##ur e#ause tese #ounters oerflow$ te uplin: anddownlin: "69 @uality is anor*al. +nor*al releases due to no ' response refer to uplin:

#all drops due to 83101 and 83103 oerflow and downlin: #all drops due to 83107 oerflow.

In nor*al #ases$ *ore tan A0F #all drops are due to 83101$ 83103$ and 83107 oerflow.

*31>1$ *31>3$ or *31>)oerflows *ainly e#ause of poor trans*ission @uality on te *

interfa#e$ or unstale trans*ission @uality on te &-+is interfa#e. In addition$ #all drops dueto 83101$ 83103$ and 83107 oerflow *ay o##ur wen te settings of P' #oding para*eters

are inappropriate$ or an inappropriate algorit* is sele#ted for adNusting te #oding s#e*e.

"o redu#e "69 anor*al releases due to no ' response$ i*proe te trans*ission @uality onte * and &-+is interfa#es. +lternatiely$ opti*i=e te settings of te following

para*eters

In#rease te alues of *31>1$ *31>3$ and *31>)to i*proe te lin: @uality toleran#e ofte networ:.

se a low-rate #oding s#e*e to redu#e #all drops. 9or details$ see te *etods for

sele#ting a low-rate #oding s#e*e.

'ele#t te 6"' reporting 6 algorit* for adNusting te uplin: #oding s#e*e. Call

drops #an e redu#ed y using te algorit*.

627 -48 Anormal /eleases Due to Suspen!e! Data Services

Data seri#es are suspended wen 's perfor* lo#ation updates or C' seri#es during P'

seri#es. In tis situation$ "69 anor*al releases due to suspended data seri#es are

*easured. "is type of anor*al release refle#ts te i*pa#t of C' seri#es on P' seri#es.

If anor*al releases of tis type o##ur$ te lo#ation area settings for #ells were te #all drop



17



rate is ig and te setting of te ti*er for periodi# lo#ation updates *ay e inappropriate.Rou are adised to #e#: tese settings.

637 -48 Anormal /eleases Due to the 8%SH= essages

en te sering &P' support node ('&'8) dete#ts #ell resele#tion initiated y an 'during data seri#es$ it sends a 9%'HB%% *essage to te original #ell. +fter te sour#e #ellre#eies te 9%'HB%% *essage$ one "69 anor*al release due to te 9%'HB%%

*essages is #ounted."is type of "69 anor*al release refle#ts te fre@uen#y of #ell

resele#tion initiated y 's. If a flood of anor*al releases of tis type o##ur$ #e#: te

settings of #oerage para*eters and resele#tion para*eters of a sering #ell and itsneigoring #ells to aoid ping-pong resele#tion. 9or details aout te opti*i=ation *etod$

see se#tion 5.3Cell esele#tion.

6$7 -48 Anormal /eleases Due to *o Channel

"e #auses of "69 anor*al releases due to no #annel aailale are as follows

nstale #annel status

9re@uent #annel out-of-syn#roni=ation

Cannel faults

anual #annel lo#:ing

Cannel dea#tiation

PDCH pree*ption y C' seri#es

If anor*al releases of tis type o##ur$ you are adised to #e#: te status of te trans*issiondei#es$ trans*ission lin:s$ and trans*ission #lo#:.

If te nu*er of ti*es te 6'C re#lai*s dyna*i# PDCHs is e@ual to te nu*er of ti*es te6'C re#lai*s dyna*i# PDCHs in load state$ ongoing C' seri#es pree*pt #annels o##upied

y P' seri#es. In tis situation$ you need to add stati# PDCHs. In addition$ set evel o0reempting Dynamic Channelto &&16*o preempt o0 CCHs7.

3.2.3 -ransmission er0ormance

"rans*ission perfor*an#e /PIs *easure trans*ission @uality of te networ:. "ey affe#t

a##essiility and retainaility /PIs as well as user e4perien#e. "ale 1.1 lists te trans*ission

perfor*an#e /PIs displayed in te *etwor+ er0ormance Au!itwor:seet. sually$ te

downlin: &P' %C data lo#: retrans*ission rate is lower tan 10F$ oter retrans*issionrates are lower tan 7F$ and te trans*ission fra*e error rate is lower tan 0.7F. "e a#tual

rates depend on te re@uire*ents of tele#o* operators.

-ale 1.1 6'C-leel trans*ission perfor*an#e /PIs

KI /ecommen!e!alue

"rans*issionperfor*an#e

etrans*ission rate of % %C data lo#: (F) G 7F

etrans*ission rate of D% %C data lo#: (F) G 7F

etrans*ission rate of % &P' %C data

lo#: (F)

G 7F

etrans*ission rate of D% &P' %C data

lo#: (F)

G 10F



1>



ate of "rans*itted rror 9ra*es G 0.70F

Cell trans*ission perfor*an#e #an e analy=ed ased on te analysis ite*s in te

&5/S=/C=4K=/&S&*D=/A-&and 5/S=/C=4K=/&S&*D=/A-&

wor:seets.

/C /etransmission /ate

"e retrans*ission rate of %C data lo#:s refle#ts te trans*ission @uality at te %C layer.If te trans*ission @uality of te * or &-+is interfa#e is poor$ te re#eiing end re@uests

te sending end to retrans*it data. "erefore$ te retrans*ission rate of %C data lo#:s

refle#ts te trans*ission @uality of te * and &-+is interfa#es to so*e e4tent.

9or details aout ow to analy=e and opti*i=e te trans*ission @uality of te * interfa#e$

see te Guide to GSM Network Evaluation of Coverage and Interference. Rou #an deter*ine

te trans*ission @uality of &-+is interfa#e ased on te 9 oer te &-+is interfa#e$trans*ission alar*s$ and #lo#: alar*s.

"e #oding s#e*e is dyna*i#ally adNusted during &P' data trans*ission. en a low-rate#oding s#e*e is used$ data lo#:s #ontain *ore redundant data and te data trans*ission rate

is low$ ut te reliaility of data trans*ission is ig. en a ig-rate #oding s#e*e is

used$ data lo#:s #ontain less redundant data and te data trans*ission rate is ig$ ut te

reliaility of data trans*ission is low. "erefore$ if te trans*ission @uality of te * or &-+is interfa#e is poor$ you are adised to use a low-rate #oding s#e*e to otain ig-@uality

data trans*ission$ i*proing user e4perien#e. sing a ig-rate #oding s#e*e *ay not

i*proe user e4perien#e as e4pe#ted and *ay een deteriorate user e4perien#e. "e *etodsfor sele#ting a low-rate #oding s#e*e are as follows

'ele#t a low-rate initial #oding s#e*e.

9or &P' seri#es$ in#rease diffi#ulties in #onerting a low-rate #oding s#e*e to a

ig-rate #oding s#e*e and de#rease diffi#ulties in #onerting a ig-rate #odings#e*e to a low-rate #oding s#e*e.

9or &P' seri#es$ sorten te 6P period to i*proe te sensitiity of *easure*ent

reports (s) to #anges in te trans*ission @uality of te * interfa#e to ensure tat

appropriate #oding s#e*es are dyna*i#ally sele#ted and used.

'ele#t te 6"' reporting 6 algorit* for adNusting te uplin: #oding s#e*e toensure tat te uplin: #oding s#e*e is appropriate to te trans*ission @uality of te *

interfa#e.

9or details aout para*eters related to te #oding s#e*e$ see se#tion >.3.1P' 6asi#Para*eters.

5



ate of "rans*itted rror 9ra*es (8u*er of e#eied Ce#: rror "+ 9ra*es L8u*er of e#eied



$ %ser &'perience Analysis an! Optimi"ation$.1 C -hroughput Analysis

"e %%C trougput on te lie networ: #an e otained ased on te weigted alue of te

uplin: and downlin: &P'J&P' %%C trougputs. Ce#: weter te %%C trougput

*eets te standards y #o*paring it wit its aseline alue.

-ale 1.1 6'C-leel %%C trougput ealuation

4SC *ame C -hroughput

4aseline alue

6+it?s7

C -hroughput on

the ive *etwor+

6+it?s7

Analysis /esult

DouleH+ ;>.?0 >?.3A 8F. "erefore$ te *ain fa#tor affe#ting te %%C trougput on te lie networ: is

insuffi#ient #annel resour#es.

-ale 1.2 +nalysis on fa#tors affe#ting 6'C-leel %%C trougput

4SC *ame A00ecting 8actor KI

4aseline

Actual

alue

A00ecting

ercentage

DouleH+ "rougout Capa#ityof %C 'ignal-

ti*e(:ps)

2;.>7 27.1> 1;.15F

DouleH+ 9re@uen#e of "69 2 1.?1 0.00F

DouleH+ Content of Cannel 0.A7 0.>2 A2.A>F



1?



2.57 0.;A A5.31F 17.71F 0.1AF

9ollowing des#ries ow to analy=e ea# affe#ting fa#tor.

$.1.2 /C Single



-ale 1.2 +nalysis on 6'C-leel %C single-ti*eslot affe#ting fa#tors

4SC *ame A00ecting 8actor KI 4aseline Actual alue A00ecting

ercentage

DouleH+ 6P1?T31 atio A7.00F A3.A?F 7.A7F

DouleH+ ate of 9ail +ppli#ation

+tte*pts of +is "i*eslot6e#ause of no Idle "i*eslot

30.00F A3.5?F ?5.17F

.73 ?5.57F ?1.00F 0.00F 100.00F

4&1(



-ale 1.$ e#eie leel and #arrier-to-interferen#e ratio supported y ea# #oding s#e*e

Co!ing Scheme /eceive evel 6!4m7 -%3 Carrier U -?> 20

C'; U -?3 23.7

C'A U -?0.7 2A.7

C'? U -A> 30

roportion o0 Ais -imeslot Application 8ailures Due to *o I!le -imeslots

+is ti*eslot suffi#ien#y is a prere@uisite for #ells using ig-rate #oding s#e*es. If idle

ti*eslots are insuffi#ient$ #annels #annot use ig-rate #oding s#e*es. "ale 1.7des#rieste *apping etween te nu*er of re@uired idle ti*eslots and #oding s#e*es.

-ale 1.) apping etween te nu*er of idle ti*eslots and #oding s#e*esCo!ing Scheme *umer o0 /e@uire! I!le -imeslots

C'1 to C'2 0

C'3 to C'5 1

C'1 to C'2 0

C'3 to C'> 1

C'; 2

C'A to C'? 3

In te -D=Ais Inter0ace /esource &valuationwor:seet of te



PDCH *ultiple4ing degree needs to de#rease to i*proe te single-user trougput.

9or te #ells wose uplin: and downlin: PDCH "69 *ultiple4ing degrees are iger tan 2$

perfor* te following opti*i=ation operations

9or te #ells were #annels are insuffi#ient and "CHs are not #ongested$ *ore PDCHs#an e otained y i*proing te *a4i*u* PDCH rate tresold$ de#rease te uplin: ordownlin: *ultiple4ing dyna*i# #annel #onersion tresold$ and set te PDCH

downlin: *ultiple4ing tresold to A0.

9or te #ells were "CHs are #ongested$ te re#o**ended opti*i=ation operation is

#apa#ity e4pansion.

$.1.$ Channel Satis0action Degree Analysis

Cannel satisfa#tion degree is te ratio of te a#tual nu*er of allo#ated #annels to te '

*ulti-ti*eslot #apaility. "e iger te #annel satisfa#tion degree$ te *ore te nu*er of

#annels allo#ated to #ells$ te iger te proaility tat te nu*er of allo#ated #annels

*eets te re@uire*ents of ' *ulti-ti*eslot #apaility.

If te #annel satisfa#tion degree is lower tan A7F$ te nu*er of PDCHs in te #ell is

insuffi#ient. "e opti*i=ation *etods are as follows

If te nu*er of ti*es te 6'C re#lai*s dyna*i# PDCHs is e@ual to te nu*er of

ti*es te 6'C re#lai*s dyna*i# PDCHs in load state$ ongoing C' seri#es pree*pt#annels o##upied y P' seri#es. In tis situation$ you need to add stati# PDCHs. In

addition$ set evel o0 reempting Dynamic Channelto &&16*o preempt o0CCHs7.

Ce#: te analysis ite*s in te DS C% Occuption /ate o0 D%wor:seet. en

te alue of +erage 8u*er of PDCHs +#tiated on D'P is greater tan 50$ dyna*i#PDCHs in so*e #ells #annot e #onerted e#ause a single D'P rea#es te #annel

a#tiation upper li*it. +s a result$ #annels are insuffi#ient. en tis o##urs$ tenu*er of a#tiated #annels on #ertain D'P is great. It is re#o**ended tat #ell

redistriution e perfor*ed to alan#e te #ell distriution on D'Ps. If *ost D'Pse4perien#e tis type of prole*$ it is re#o**ended to add DPPs.

9or te #ells were #annels are suffi#ient and "CHs are not #ongested$ i*proe te

*a4i*u* PDCH rate tresold in te #ell to otain *ore PDCHs.

9or te #ells were "CHs are #ongested$ te re#o**ended opti*i=ation operation is

#apa#ity e4pansion.

$.2 Delay AnalysisDelay #an e analy=ed ased on PCH data instead of traditional traffi# statisti#s. PCHs are

i*proed sin#e &6'' 13.0$ and terefore tere is no tool for at# analy=ing PCHs. In tis

situation$ you need to analy=e PCHs one y one y using te Insigt'arp tool. 9or details

aout ow to use te Insigt'arp tool$ see se#tion>.1elated "ools. Delay #an e analy=edased on te data in te PCH delay-sensitie seri#e infor*ation area. "e :ey /PI to e

analy=ed is aerage delay in seri#e intera#tion response. "e for*ula for #al#ulating te

aerage delay in seri#e intera#tion response is as follows

+erage delay in seri#e intera#tion response +erage delay in sending PDs L +erage

delay in re#eiing PDs L +erage delay in PD round trip oer te & interfa#e

"ale 1.1des#ries te for*ulas for #al#ulating ea# /PIs.



23



-ale 1.1 Delay /PIs

KI 8ormula

+erage delay in sending

PDs

"otal duration for sending PDsJ"otal nu*er of sent PDs

+erage delay in re#eiingPDs

"otal duration for re#eiing PDsJ"otal nu*er of re#eiedPDs

+erage delay in PDround trip oer te &

interfa#e

"otal interal etween uplin: and downlin: PDsJ'tatisti#alti*es for *easuring te interal etween uplin: and

downlin: PDs

"e aerage delay in sending PDs and aerage delay in re#eiing PDs refle#t te downlin:

and uplin: delays on te 6'' side$ respe#tiely. "e aerage delay in PD round trip oer te

& interfa#e refle#ts te delay aoe te & interfa#e$ in#luding te uplin: and downlin:pro#essing duration on te & interfa#e and #ore networ:.

9or te #ells wit long delay on te 6'' side$ #e#: weter a##essiility$ retainaility$ and

trans*ission perfor*an#e /PIs are nor*al. If tey are anor*al$ opti*i=e te* y referring

to asso#iated *etods.

9or te #ells wit long delay aoe te & interfa#e$ #e#: te lin:s oer te & interfa#e or

#onta#t #ore networ: engineers to lo#ate prole*s on te #ore networ:.

$.3 Cell /eselection

"e :ey /PI for analy=ing #ell resele#tion on te 6'' side is "69 anor*al release rate due

to flus. If te alue of tis /PI is greater tan 1F$ #ell resele#tion greatly affe#ts seri#es. In

tis situation$ you need to set te #ell resele#tion para*eters and adNust #oerage.

-ale 1.1 6'C-leel #ell resele#tion analysis

KI /ecommen!e! alue







-ale 1.2 Cell-leel #ell resele#tion analysis

Cell

*ame

-48 !rop

rate !ue to

8lush

*umer o0

-imes a Cell

Is Selecte! y

S

/atio o0 Cell

/eselections y S

at Short Interval

/atio o0 Cell

ing



) *etwor+ Characteristics &valuation).1 S Support Capaility &valuation

+naly=ing ' support #apailities on te lie networ: elps in guiding #usto*ers to use

so*e fun#tions and to learn aout ' infor*ation.

"is se#tion proides te proportion of ' support #apailities on te lie networ: ased on

/PIs. 9re@uen#y and support #apaility$ en#ryption algorit* support #apaility$ CD+

support #apaility$ "D-'CD+ support #apaility$ and CD+ support #apaility$ networ:assisted #ell #ange (8+CC)$ and dual transfer *ode (D") are *easured after C' #alls are

initiated or wen te #lass*ar: otained during an in#o*ing 6'C andoer #ontains response

support #apaility. D+$ *ulti-"69$ and P' andoer support #apailities are *easured wen

oter support #apailities are otained after P' seri#es are initiated. "e proportions of '

support #apailities proided in tis do#u*ent are *easured ased on #all ti*es. "erefore$support #apailities for an ' *ay e *easured seeral ti*es e#ause of #alls initiated for

seeral ti*es.

"e proportions of ' support #apailities #an e otained fro* te S Capaility Au!it

wor:seet.

).1.1 S 8re@uency 4an! Support Capaility

' fre@uen#y and support #apaility elps #usto*ers properly plan and fully utili=e teir

fre@uen#y and resour#es. 9or e4a*ple$ resour#es on ?00 H= and are insuffi#ient ut

resour#es on 1A00 H= are suffi#ient. eanwile$ 's on te &' networ: support ot

?00 H= and 1A00 H= fre@uen#y ands. In tis situation$ it is re#o**ended tat te dual-

and networ: e deployed.



-ale 1.1 ' fre@uen#y and support #apaility ealuation

4SC

*am

e

-erminal

o0

Supportin

g5S(>>

4an!

-erminal

o0

Supportin

g5S(>>

& 4an!

-erminal

o0

Supportin

g5S(>>

/ 4an!

-erminal

o0

Supportin

gDCS1B>>

4an!

-erminal

o0

Supportin

gCS1(>>

4an!

-erminal

o0

Supportin

g5SB)>

4an!

-erminal

o0

Supportin

g5S$B>

4an!

-erminal

o0

Supportin

g5S$)>

4an!

).1.2 S ulti



-ale 1.1 +nalysis on P' seri#e #apailities

4SC

*am

e

-erminal

o0

Supporti

ng D-

-erminal

o0

Supporti

ng5&/A*

1

-erminal

o0

Supporti

ng SSwitch

-erminal

o0

Supporti

ngDownlin

+

&5/S2



-ale 1.1 odel *apping etween te nu*er of uplin: "69 estalis*ents and uplin: traffi#

*umer o0

%plin+ S

Imme!iate

Assignments

*umer o0

%plin+ -48

&stalishments

%plin+

-ra00ic

6K47

-ale 1.2 odel *apping etween te nu*er of downlin: "69 estalis*ents and downlin:

traffi#

Average

Duration o0

Downlin+ -48s

6ms7

*umer o0

Downlin+ S

Imme!iate

Assignments

*umer o0 Downlin+

-48 &stalishments

Downlin+

-ra00ic 6K47

).2.3 Duty Cycle o0 Downlin+ -48 /elease Delay

+fter te last downlin: %C data lo#: is trans*itted on te networ: side and all tetrans*itted downlin: data lo#:s are re#eied$ te ' is not infor*ed to stop tis downlin:

"69. Instead$ te state of te last data lo#: is for#ily set to not re#eied and te 6P

flag of te last data lo#: is retrans*itted #ontinuously so tat te downlin: "69 is notreleased. During te downlin: delay release$ if te upper layer of te networ: side needs to

trans*it downlin: data$ te downlin: %C lo#: for unpa#:ing #an e trans*itted in tedownlin: "69 for delay release. "e state of te downlin: "69 is #anged fro* delay release

to downlin: trans*ission. In addition$ te ' *ust respond te Pa#:et Downlin: +#:J8a#:*essage troug te uplin: data lo#: of te 6P to e4#ange *essages wit te networ:

side. en te ' needs to send data$ te ' #an send te uplin: re@uest to te networ:

sides troug te Pa#:et Downlin: +#:J8a#: *essage wit te #annel re@uest des#ription.

'etting tis para*eter to a large alue results in a waste of radio resour#es$ adersely affe#ts

te a##essiility of oter 's on te networ:. In addition$ unne#essary signaling *ay o##upy

te #annel andwidt$ leading to a waste of downlin: resour#es.

'etting tis para*eter to a s*all alue results in #onstant downlin: "69 releases and

reestalis*ents and prolongs te delay wen a delay test for +tta# or Ping seri#es is

perfor*ed. "e original downlin: "69 is released @ui#:ly$ te suse@uent downlin: datatrans*ission *ust e i*ple*ented y estalising a new "69. In addition$ te suse@uent

uplin: data *ust e trans*itted on a new "69. "is as signifi#ant i*pa#t on te "69estalis*ent period and "69 estalis*ent su##ess rate.

Duty #y#le of downlin: "69 release delay spe#ifies te proportion of "69 release delay to te

total "69 period. If te duty #y#le of downlin: "69 release delay is too long and te "69#ongestion rate is ig$ prolong te downlin: "69 release delay to allow *ore 's to a##ess

te networ:.

"e 6'C- and #ell-leel downlin: "69 release delay and duty #y#le of downlin: "69 release

delay is displayed in te -48 Delay /elease -ime Au!itwor:seet.



2?



).2.$ Analysis on roportions o0 Dummy 4loc+s an! Signaling 4loc+s

it #ontinuous deelop*ent of P' seri#es$ te proportion of PDCHs to all "CHs in#reasesand te i*pa#t on te C' spee# @uality strengtens. In tis situation$ you need to perfor*

power #ontrol on P' seri#es to *ini*u* te interferen#e of P' seri#es to C' seri#es.

Perfor*ing power #ontrol on P' seri#es is to perfor* power #ontrol on du**y lo#:s. "egains on te networ: otained y P' power #ontrol depends on te proportion of du**y

lo#:s.

It is re#o**ended tat P' power #ontrol e disaled in te following s#enariosCells in '1 and '2 #onfiguration *ode. "is is e#ause PDCHs are #onfigured on te 6CCH

", in tis s#enario and te 6CCH ", *ust always trans*it power.

Cells are in '3 or '5 #onfiguration *ode and teir P' e@uip*ent traffi# olu*es (nu*er ofo##upied PDCHs) are lower tan >. In oter s#enarios$ weter power #ontrol is enaled

depends on te proportion of du**y lo#:s.

"e proportions of 6'C- and #ell-leel downlin: du**y lo#:s and proportions of 6'C- and

#ell-leel downlin: signaling lo#:s are displayed in te D%: an! essage 4OCK/atio Au!itwor:seet.

).3 ireless /esource Analysis

).3.1 CCCH /esource Analysis

6y analy=ing CCCH resour#es$ analy=e te nu*er of #onfigured CCCHs$ signaling load on

te lie networ:$ #onsu*ption of CCCH resour#es on C' and P' seri#es$ i*pa#t of CCCHresour#es on P' and C' seri#es$ and signaling loads for P' and C' seri#es. "is elps you

adopt appropriate solutions$ su# as a##urate paging and C' preferen#e and analy=e tepro*otion and wide use of e4tended 6CCH and dyna*i# *ulti-CCCH on te lie networ:.

"e analysis ite*s in te CCCH Signaling Channel /esouce Au!itwor:seet refle#t te

proportions of P' and C' paging flow in a #ell.

).3.2 ireless /esource Analysis

ireless resour#e analysis analy=es wireless resour#e #ongestion$ #onsu*ption of wireless

resour#es on PDCHs and "CHs$ P' earing effi#ien#y$ alf-rate proportion. +naly=ing te

related /PIs elps in learning aout te resour#e usage and sele#ting te areas and #ells to e

opti*i=ed. If te C' alf-rate proportion is ig and te P' earer effi#ien#y is low$ analy=ingte #ause of low P' earer effi#ien#y elps in perfor*ing opti*i=ation y adNusting te

following para*eterselease delayplin: ultiple4 "resold of Dyna*i# Cannel ConersionJDownlin: ultiple4 "resold

of Dyna*i# Cannel Conersion

"i*er of eleasing Idle Dyna*i# Cannel

"e analysis ite*s in te /8 Channel oa! Au!itwor:seet refle#ts te 6'C- and #ell-leel

resour#e usage.



30



, Appen!i',.1 /elate! -ools

-ale 1.1 elated tools

-ool Description How to Otain

8IC Data #olle#tion9or details aout ow to otain '



%ireless Maintenance.

ttpJJsupport.uawei.#o*JsupportJpagesJnewsJ8ewsInfo+#tion.dodo#BidI8000003>A;3#olIDA 700 +fter eli*inating teeffe#t of lin: @ualityand radio resour#e

#ongestion$ in#reasete alue of -31,Btoi*proe te uplin:

"69 assign*ent

su##ess rate. "is *ay

prolong te delay ofuplin: "69

assign*ent.

'"

&C%%P'6+'

"31?2 700 en networ:resour#es are

suffi#ient$ tat is$ te

&P' seri#e#ongestion rate is low$set -31(2to a ig

alue to a##elerate

"69 estalis*ent andi*proe data

trans*ission

perfor*an#e.

esour#e a4i*u*

atio

"resold ofPDCHs in a

Cell(F)

30 '"&C%%P'CH



32



Category arameter

*ame

De0ault

alue

/ecommen!e!

alue

Setting rinciple Comman!

%eel of

Pree*pting

Dyna*i#Cannel

%V%0 %V%0 If "CHs are suffi#ient

ut e#lai*ed

Dyna*i# PDCH rate isig$ set tis para*eter

to &&1.

Dyna*i#

CannelConersion

Para*eter of

Con#entri#Cell



Category arameter

*ame

De0ault

alue

/ecommen!e!

alue


plin:

Default C'

"ype

C'2 C'2 If te trans*ission

@uality of te *

interfa#e is unstaleand a ig-rate initial

uplin: #oding s#e*e

is used$ te "69

estalis*ent su##essrate *ay e low. If a

low-rate #oding

s#e*e is used$ te"69 estalis*ent

su##ess rate in#reases

ut te uplin:

trougput and

proportion of ig-rate#oding s#e*es

de#rease.

Downlin:

9i4ed C'

"ype

89I,

D

89I,D

Downlin:

Default C'

"ype

C'> C'> se a ig-rate initial

#oding s#e*e to

in#rease te proportionof ig-rate #oding

s#e*es. "is *ay

in#rease te

retrans*ission rate.

plin: 9i4ed

C' "ype

89I,

D

89I,D '" &C%%P'C'plin:

Default C'

"ype

C'1 C'1 If te trans*ission

@uality of te *

interfa#e is unstaleand a ig-rate initial

uplin: #oding s#e*e

is used$ te "69

estalis*ent su##essrate *ay e low. If a

low-rate #oding

s#e*e is used$ te

"69 estalis*entsu##ess rate in#reases

ut te uplin:

trougput andproportion of ig-rate

#oding s#e*es

de#rease.



35



Category arameter

*ame

De0ault

alue

/ecommen!e!

alue


Downlin:

9i4ed C'

"ype

89I,

D

89I,D

Downlin:

Default C'

"ype

C'2 C'2 se a ig-rate initial

#oding s#e*e to

in#rease te proportion

of ig-rate #odings#e*es. "is *ay

in#rease te

retrans*ission rate.



37

Documents

GSM Wireless PS Performance Analysis Guide V1.0(20120615)