Comparison Between CDMA and GSM_20100222.doc

8/14/2019 Comparison Between CDMA and GSM_20100222.doc

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Operator LOGO

Comparison Between CDMAand GSM


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Comparison Between CDMA and GSM


Version Date Author Approved By Remarks

V1.0 2009-03-05 Li C !n"in# Li M $ot open to t e t ird part"

2009-05-31%ian# &aoLi C !n"in#

Add t e 'GV

2010-02-22 Li C !n"in# (pdate &emp)ate

*&+ Con,identia) roprietar" 2009 *&+ Corporation. A)) ri# ts reser/ed.

2009 *&+ Corporation. A)) ri# ts reser/ed.

ZTE CO !"DE T"A#$ & is do !ment ontains proprietar" in,ormation o, *&+ and is not to edis )osed or !sed wit o!t t e prior written permission o, *&+.

D!e to !pdate and impro/ement o, *&+ prod! ts and te no)o#ies in,ormation in t is do !ment iss! 4e ted to an#e wit o!t noti e.


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&ABL+ O CO$&+$&S

% Data &er'orman(e Comparison)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%1.1 er,orman e nde6 Comparison.................................... ......................................... .................. 11.2 Con )!sion..................................... ........................................ ............................. ...... ....... ....... . 2

* Voi(e Capa(ity Comparison))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))+2.1 Comparison o, er,orman e nde6es............................................................ .................... ....... '2.2 Con )!sion..................................... ........................................ ............................. ...... ....... ....... . 5

, Covera-e Area and BTSs um.er Comparison))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))/3.1 Co/era#e Area.......................................................... ........................................ ............... ...... .. 7

3.2 Comparison o, B&Ss $!m er 8e !ired ,or t e Same Co/era#e................................... ...... .... :+ Comparison o' CA&E0 and O&E0))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))1

2 Summary%3

/ Appendi4$ Emu5ation Do(uments)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%37.1 GSM ; +d#e Data..................................................... ........................................ ..................... 107.2 CDMA1< ; +V-DO Data.................................................... ........................................ ...... ...... 117.3 ntrod! tion to t e Voi e Capa it" +6pansion &e no)o#ies ro/ided " GSM and CDMA1


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G(8+S

Comparison .etween the &eak !orward Se(tor Throu-hput and the Avera-e !orward Se(torThrou-hput*

Comparison .etween the &eak Reverse Se(tor Throu-hput and the Avera-e Reverse Se(torThrou-hput*

Se(tor Voi(e Capa(ity Comparison 7%3 M89 etworkin-:))))))))))))))))))))))))))))))))))))))))))))))))))))))))+

Comparison o' the um.er o' BTSs Re;uired 'or the Same Covera-e)))))))))))))))))))))))))))))))))))6

O&E0 < CA&E0 (omparison .etween GSM and CDMA))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))1Comparision o' various te(hni;ues))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%3

Di''erent sta-es o' EDGE down5ink peak rate))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%%

%4 and DO the peak rate at di''erent sta-es))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%%

Comparision o' voi(e (apa(ity in %3M=.andwidth)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%*

&ABL+S

Te(hni(a5 "nde4es Comparison)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))%

Se(tor Voi(e Capa(ity Comparison 7%3 M89 etworkin-:))))))))))))))))))))))))))))))))))))))))))))))))))))))))+

Comparison o' Covera-e Area o' .etween CDMA Ce55 and GSM Ce55)))))))))))))))))))))))))))))))))))))) /

O&E0 Data 1

CA&E0 Data))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 1

A..reviations)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) %/

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1 Data er,orman e Comparison

1.1 er,orman e nde6 Comparison

&a )e 1 &e ni a) nde6es Comparison

CDMA%0

EV=DORev)A

EV=DORev)B Ed-e Ed-e evo

C anne) andwidt 1.25M=>1.25M=>

$ 6 1.25M=> 200 ?=>

2 6 200?=>

+stimated time o,ommer ia) !se

t as een p!t intoommer ia) !se ona )ar#e s a)e.

Se onda), o,2009

t as eenp!t intoommer ia)!se on a)ar#e s a)e.

2009

orward ompati i)it"mode -

O/er)a"networ?witCDMA1 networ?in# E

& e ,orward re/erse pea? rate o, t e +d#e se tor is a )itt)e i# er t an t at o,CDMA1 networ?in# anddown)in? 1.25 M=> networ?in# E

& e a/era#e ,orward re/erse rate o, t e +d#e se tor is asi a))" e !a) to t ato, t e CDMA1< se tor.

& e a/era#e ,orward re/erse rate o, t e +d#e e/o se tor is ,ar )ower t an t ato, t e +V-DO 8e/.A se tor and 8e/.B se tor.

S!mmar"E

& e data per,orman e o, +d#e is )ose to and a )itt)e )ower t an t at o, CDMA1


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2 Voi e Capa it" ComparisonBot +V-DO and +d#e s!pport t e pa ?et- ased Vo ser/i e. n t is ase t e /oi eapa it" o, Vo is in dire t proportion to t e data t ro!# p!t. As des ri ed in C apter 1t e omparison o, data t ro!# p!t etween +V-DO and +d#e a)so re,)e ts t eomparison o, /oi e apa it" etween t em.

C apter 2 #i/es a omparati/e ana)"sis o, t e /oi e apa it" o, CDMA1< and GSM.

2.1 Comparison o, er,orman e nde6es

&a )e 2 and i#!re 3 #i/e a omparison o, se tor /oi e apa it" etween CDMA1< and

GSM w en ot t e !p)in? andwidt and down)in? andwidt are 10 M=>.

&a )e 2 Se tor Voi e Capa it" Comparison @10 M=> $etwor?in#

GSMCon,i#!ration + 8 D C D&< AM8 AM8 D CA S- = =8

Capa it" @+r) 7: 1'2 1:0

CDMA%0Con,i#!ration Ori#ina) 'GV 'GV C

Capa it" @+r) 1 5 2'9 350

i#!re 3 Se tor Voi e Capa it" Comparison @10 M=> $etwor?in#

ote$

& e apa it" o, GSM in ot &a )e 2 and i#!re 3 are ased on t e ,o))owin#ass!mptionE 8e!seH1 1 and ra tiona) Loadin# H 25I. & e ass!mption is an idea)

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ondition and is a)most impossi )e in rea)it". or GSM t e t"pi a) i# re!se oe,,i ientis ' 12 or 1 3 and t e ,re !en " re!se oe,,i ient is 0.1 to 0.33. A,ter an a##ressi/e,re !en " re!se te no)o#" @,or e6amp)e S = or D CA is adopted t e pro a )e,ra tiona) )oad is a o!t 0.' @t e ,re !en " re!se oe,,i ient is 0.7 i, re!se is e !a) to 1 1.

n t is ase t e /oi e apa it" o, GSM is #reat)" red! ed.

2.2 Con )!sion

&a )e 2 and i#!re 3 s ow t at t e /oi e apa it" o, CDMA1< is ,ar i# er t an t at o,GSM in t e same app)i ation s enario.

& e i# - apa it" ,eat!re o, CDMA1< rin#s t e ,o))owin# ene,its to t e operatorsE

8i-h spe(trum uti5i9ation$ S!pport more s! s ri ers t ro!# t e same andwidtand t !s e6pand t e s! s ri er apa it" o, t e networ?F an rin# potentia) re/en!eto operators and red! e t e spe tr!m-re)ated e6pense.

A i# - apa it" networ? an red! e t e e6penses in networ? dep)o"ment andmaintenan e sa/e t e e6pense in t e e6pansion o, /oi e apa it" and e)poperators )a" down a more ompetiti/e ser/i e ar#in# po)i " t !s #ainin# morere/en!e.

Jins a di,,erentia) ad/anta#e in t e mar?et ompetition and #ain additiona) re/en!e" pro/idin# t e more ompetiti/e road and data ser/i e.

Ad4!sts t e data /oi e apa it" o, t e ,i6ed mo i)e ser/i e !nder t e same networ?ar ite t!re.

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3 Co/era#e Area and B&Ss $!m erComparison

3.1 Co/era#e Area

or a omm!ni ation s"stem or wire)ess )o a) )oop it is t e asi re !irement to o,,er anappropriate o/era#e area. & e o/era#e area o, ea e)) is a,,e ted " t e )in? !d#etsi#ni,i ant)". Based on t e determined )in? !d#et "o! an ompare t e e)) radi!s andt e re !ired n!m er o, Base &rans ei/er Stations @B&Ss ,or t e di,,erent air inter,a ete no)o#ies.

&a )e 3 #i/es a omparison o, o/era#e area etween CDMA and GSM !nder t e sameen/ironment.

&a )e 3 Comparison o, Co/era#e Area o, etween CDMA Ce)) and GSM Ce))

&arameter Dense >r.anArea>r.anArea

Su.ur.anArea

Rura5Area

Area o, CDMA e)) @?m 2 1.': 3.'9 31.'0 3:5.3:

Area o, GSM e)) @?m 2 0.3 0.79 7.': : .05

Comparison o,o/era#e area '. 2E1 5.0 E1 '. 5E1 '. 1E1

ote$

& e omparison in &a )e 3 is ased on t e norma) parameters o, GSM and CDMA as,o))owsE

8e/erse )in? !d#et

& e termina) power o, GSM is 2 J and t e termina) power o, CDMA is 0.2 J.

& e ,re !en " o, GSM is 90 M=> and t e ,re !en " o, CDMA is 25 M=>.

or GSM t e re ei/er sensiti/it" o, t e B&S is -10 dBm. or CDMA t e re ei/ersensiti/it" o, CDMA is -12: dBm.

+6 ept t e GSM-re)ated s"stem parameters and CDMA-re)ated s"stem parametersot er pre onditions are t e same ,or e6amp)e t e B&S ei# t is t e same @30meters in t e dense !r an area '0 meters in t e !r an area and 50 meters in t er!ra) area and s! !r an area and t e antenna #ain is 1: dBi.

& e omparison in &a )e 3 s ows t at t e re !ired n!m er o, CDMA e))s is at )east0I )ess t an t at o, GSM e))s i, t e o/era#e area is t e same. a ts a)so s ow t atCDMA o/ers a wider area t an GSM.

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3.2 Comparison o, B&Ss $!m er 8e !ired ,or t eSame Co/era#e

i#!re ' s ows a omparison o, t e n!m er o, B&Ss re !ired ,or t e same o/era#earea etween CDMA and GSM @ ased on t e ommer ia) networ?s o, C ina (ni om inBei4in# and nner Mon#o)ia .

i#!re ' Comparison o, t e $!m er o, B&Ss 8e !ired ,or t e Same Co/era#e

As s own in i#!re ' t e re !ired n!m er o, CDMA B&Ss is 39I )ess t an t at o, GSMB&Ss ,or t e same o/era#e area in Bei4in# and t e re !ired n!m er o, CDMA B&Ss is52I )ess t an t at o, GSM B&Ss ,or t e same o/era#e area in nner Mon#o)ia.

As ompared wit GSM CDMA an de rease t e re !ired n!m er o, B&Ss si#ni,i ant)". As a res!)t operators an !t down t e initia) e6penses in networ? onstr! tion@in )!din# t e e !ipment e6pense and en#ineerin# imp)ementation e6pense #ain ai# er inp!t-o!tp!t ratio and )a" down a more ,)e6i )e ar#in# po)i ".

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' Comparison o, CA +< and O +#$ 2)+ M.ps

72 M89? !DD:

%)20 in(reasein voi(e (apa(ity %

D##$ %2, k.ps7%)*2 M89? !DD:

CDMA*333 RoadmapCDMA*333 Roadmap

D#$ *)+ M.ps

>#$ %2, k.ps7%)*2 M89? !DD:

D#$ %2, k.ps>#$ %2, k.ps

7%)*2 M89? !DD:

D#$ ,)% M.ps

>#$ %)1 M.ps7%)*2 M89?!DD:

+0 in(reasein voi(e (apa(ity *

D##$ ,36 k.ps7%)*2 M89? !DD:

CDMA*333%0

D#$ ,* M.ps 2

>#$ %*)+ M.ps7+4%)*2 M89?

!DD:

D#$ @),

M.ps,

>#$ 2)+ M.ps72 M89? !DD:

%0Enhan(ements

ew Channe5 CardEVRC=B #"C O!

%4EV=DORev) A

S

EV=DOEnhan(ements%4EV=DO

Re5) 3

8 M"MOS

Mu5ti(arrierEV=DO

i#!re 16 and DO t e pea? rate at di,,erent sta#es



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i#!re 9 Comparision o, /oi e apa it" in 10M- andwidt

7.3 ntrod! tion to t e Voi e Capa it" +6pansion&e no)o#ies ro/ided " GSM and CDMA1ed ,ar ear)ier t an CDMA so )ots o, GSM te no)o#ies were notapp)ied in t e initia) /ersion. &o impro/e t e /oi e apa it" and ,re !en " re!seoe,,i ient GSM amp as a)wa"s onsidered t e step o, optimi>ation and

impro/ement.

Adapti/e M!)ti-rate spee trans odin# @AM8 E AM8 an mana#e t e /oi e !a)it"and ontro) errors d"nami a))" t !s ens!rin# i# /oi e !a)it" e/en in a poorwire)ess en/ironment. AM8 an e6pand t e /oi e apa it" " :0I.

=a), rate @=8 E in )!din# + 8-=8 and AM8-=8. =8 ena )es t e transmission o,two /oi e anne)s o/er one times)ot. or t e minim!m =8 mode @AM8-=8pro/ides !p to si6 rate modes t e /oi e apa it" an e impro/ed " 100I atmost.

A##ressi/e ,re !en " re!se te no)o#"

Dynami( &ower Contro5 7D&C:$ D C impro/es t e power ontro) rate @2.0=> and pre ision and red! es o-,re !en " inter,eren e. n on4!n tion wit,re !en " oppin# D C an attain t e optima) e,,e tF ,or e6amp)e impro/in#t e apa it" " 50I.

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!re;uen(y 8oppin- 7!8:$ = an swit t e ,re !en " o, t e /oi e ser/i eanne) !i ?)" t !s impro/in# t e ,re !en " re!se oe,,i ient to as i# as 1

@w en t e = te no)o#" is app)ied t e )o ?s o, t e entire networ? s o!)d es"n roni>ed t at is t e S = te no)o#" s o!)d e app)ied . J en t e =

te no)o#" is !sed in on4!n tion wit D"nami ower Contro) AM8 anddis ontin!o!s &ransmission t e ,ra tiona) )oad an amo!nt ,rom '0I to 70It at is t e ,re !en " re!se oe,,i ient is 0.' to 0.7.

Dis(ontinuous Transmission 7DT0:$ t is simi)ar to t e /oi e a ti/ation te no)o#"o, CDMA. J en t e s! s ri er is not ta)?in# t e s! s ri erKs tra,,i anne) anstop transmission to red! e t e inter-,re !en " inter,eren e. & e /oi e a ti/ationoe,,i ient is !s!a))" 0.'5 to 0.5. n t is ase t e /oi e apa it" an e e6panded" 30I i, D&< is app)ied sin#)".

Dynami( !re;uen(y and Channe5 A55o(ation 7D!CA:$ , t e D CA te no)o#" is

app)ied t e )o ?s o, t e entire networ? s o!)d e s"n roni>edF ,or CDMA t eG S )o ?s are !sed ,or s"n roni>ation o, t e entire networ?. & e s! s ri erKstra,,i anne) and t e anne) a))o ated !pon ando/er an e a))o atedd"nami a))" a ordin# to t e ,re !en " and wire)ess stat!s o, t e anne). , t eD CA te no)o#" is !sed sin#)" t e s"stem apa it" an e e6panded " a o!t50I. , AM8 and re !en " oppin# a/e een !sed t e ene,it o, DVCA is#reat)" red! ed.

Mo.i5e Re(eive Diversity 7MR4D:

nter,eren e Can e))ation @ C

Sin-5e Antenna "nter'eren(e Can(e55ation 7SA"C:$ SA C is an C te no)o#"@4oint demod!)ationE one o, t e ?e" te no)o#ies !sed " &D-SCDMA . J en amo i)e p one as on)" one re ei/in# antenna SA C an e !sed to in reaset e ,orward #ain @w en t e SA C te no)o#" is app)ied t e )o ?s o, t e entirenetwor? s o!)d " s"n roni>edF t e SA C te no)o#" is estimated to impro/et e /oi e apa it" " at )east 50I .

orward inter,eren e an e))ation @ C

8e/erse inter,eren e an e))ation @8 C

Transmit Diversity$ &ransmittin# di/ersit" o, B&S antennaF t ro!# s! odin#modes as spa e time odin# and s"n rono!s odin# t e B&S !ses twotransmittin# antennas to impro/e t e ,orward apa it".

/),)* Voi(e Capa(ity E4pansion Te(hno5o-y &rovided .y CDMA%0

Lots o, GSM te no)o#ies @,or e6amp)e D&< and d"nami power ontro) are re !iredin t e ,irst /ersion o, CDMA1


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d"nami priorit" settin#s ,or /oi e !a)it" and s"stem apa it" t e on/ersionetween t e i# /oi e !a)it" and t e i# s"stem apa it" an e rea)i>ed.=owe/er 'GV app)i ation does not mean t at t e de )ine in /oi e !a)it".'GVte no)o#" pro/ides rate )e/e)s t e" are CO 0-CO : @,rom i# to )ow . & esim!)ation and *&+ ,ie)d tests in ndia s ow t at t e /oi e !a)it" wit a )ower rateCO 7 )e/e) is simi)ar to t ose wit +V8C. At t e same time t e a/era#e rate o,sin#)e-!ser an )ower a o!t 30I wit CO 7 t an t ose wit +V8C. & e o/era))s"stem apa it" an e !p#raded " a o!t 20 I. Most o, t e !rrent CDMAtermina) s!pport 'GV te no)o#".

8a5' Rate 78R:$ CDMA1< s!pports t e transmission o, /aria )e-rate /oi e. & e/oi e a ti/it" ,a tor" is 0.5 so t ere are sti)) 50I ,!))-rate /oi e pa ?ets. & ere,oret e s"stem an d"nami a))" oose to s!pport a),-rate /oi e a ordin# to t ese tor /oi e apa it". Genera))" t e CDMA s"stem an impro/e t e se tor /oi e

apa it" " 20I.

"nter'eren(e Can(e55ation 7"C:$ n )!din# (ALCOMM Linear nter,eren e @ L Cand re/erse o-,re !en " inter,eren e an e))ation te ni !e @8L C F CDMA isse),-inter,eren e s"stem. CDMA ,orward an re ei/e si#na) inter,eren e ,romnei# or ase stations and t eir m!)tipat si#na) inter,eren e so inter,eren ean e))ation te no)o#" is t e most e,,e ti/e and dire t wa" to en an e t e apa it"o, CDMA s"stem. & e C te no)o#" an impro/e t e /oi e apa it" o, CDMA1< "50I. or detai)s re,er to t e C te no)o#" o, GSM.

Dua5 R0$ D!a)-antenna re ei/er termina) te no)o#" an e,,e ti/e)" in rease t ere ei/e di/ersit" #ain impro/e si#na) to noise ratio to re ei/e o, t e re ei/e si#na)and red! e t e dept de i)itatin# e,,e ts o, t e ,orward si#na). D!a)-antennatermina)s an re ei/e at )east 3dB #ain at t e same time t e ,orward )in? apa it"an !p#rade a o!t 2.5dB and t e ,orward )in? #ain an en an e :0I. CDMA16apa it" is )imited " t e ,orward apa it". & ere,ore t e ene,its o, D!a) 86te no)o#" to CDMA are ,ar more t an t e ene,its o, M86D to GSM. & e most o,!a) omm termina) ips as we)) as a)) 16 +VDO d!a)-mode termina) ips a)read"s!pport termina) re ei/e di/ersit" te no)o#".

Transmit Diversity 7TD:$ &ransmittin# di/ersit" o, B&S antennaF t ro!# s!odin# modes as spa e time odin# and s"n rono!s odin# t e B&S !ses twotransmittin# antennas to impro/e t e ,orward apa it". As a matter o, ,a t t e &Dte no)o#" as een de,ined in t e initia) /ersion o, CDMA1


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/),), Te(hni(a5 Comparison

CDMA and GSM te no)o#ies e6perien ed #reat impro/ements !t not a)) t e impro/edte no)o#ies an e p!t into ommer ia) !se easi)". +spe ia))" )ots o, impro/ed GSMte no)o#ies re !ire )o ? s"n roni>ation o, t e entire networ?. or e6amp)e S = =D CA and SA C are t e t ree riti a) GSM te no)o#ies t at impro/e t e ,re !en "re!se oe,,i ient !t t e" re !ire pre ise )o ? s"n roni>ation @s"m o)s"n roni>ation o, t e entire networ? w i is "et to e imp)emented in a ommer ia)networ?.

As a matter o, ,a t t e ,irst ommer ia) CDMA1< standard as in orporated )ots o,impro/ed GSM te no)o#ies.

D!CA$ & e S95- omp)iant CDMA as !sed pre ise G S )o ? s"n roni>ation asa re !ired te no)o#" and as introd! ed t e so,t ando,, te no)o#".

Dynami( varia.5e=rate vo(oder a5-orithm$ & e S-95- omp)iant CDMA s!pportst e odin# mode in w i t e /aria )e rate is !sed a ordin# to t e /oi e !a)it".& is a)#orit m ontains t e D&< and =8 te no)o#ies o, GSM !t is moread/an ed t an as ompared to t e ones !sed in GSM.

D&C$ & e S95- omp)iant CDMA s!pports ,ast power ontro) at a rate o, 00 M=>w i is '00 times i# er t an t e D C rate o, GSM @2.0 => .

& e ,o))owin# te no)o#ies a/e not een app)ied in t e two standards on a )ar#e s a)e.=owe/er t e" rin# t e same ene,its to s"stem apa it"E

AM8 @'GV - A new #eneration o, /oi e odin# te no)o#"

MR4D @D!a) 86 $ & e ,orward apa it" o, t e CDMA1< s"stem is )imited. Certain)"t e CDMA1< s"stem an #ain a i# er apa it" i, t e D!a) 86 te no)o#" is !sedsin#)". n addition to t e M86D owe/er GSM a)so re !ires t e dedi atedte no)o#" o, e6pandin# t e re/erse apa it".

TD$ & e ,irst ommer ia) CDMA1< standard as de,ined and standardi>ed t e &D.Genera))" t e &D te no)o#" rin#s more ene,its to CDMA1< t an GSM.

"C$ n )!din# C and 8 C.



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Comparison Between CDMA and GSM_20100222.doc