a2 general description of 3g.ppt
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Wireless Curriculum Development SectionWireless Curriculum Development Section
ISSUEISSUE
OWR00001 General Description of 3G
1.01.0
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Confidential
Course Contents
Chapter 1 Introuction to I!"#$000Chapter 1 Introuction to I!"#$000
Chapter $ CD!% &unamentalChapter $ CD!% &unamental
Chapter 3 'erformance Enhancement !ethosChapter 3 'erformance Enhancement !ethos
Chapter ( WCD!% &DD !oeChapter ( WCD!% &DD !oe
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1st Generation
1)*0s +analo,-
$n Generation
1))0s +i,ital-
3r Generation
current +i,ital-
3G provies Complete inte,rate service
solutions /i,h anith Unifie air interface 2est spectral efficienc an
444444 a step toars 'CS
%!'S
%nalo, to Di,ital"%CS
5!"
O"/ERS
GS!
CD!%
IS)6
"D!%
IS#137
'DC
U!"S
WCD!%
CD!%
$000
"D#
SCD!%
Development of !oile Communications
8oice to 2roaan
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Stanari9ation Course of I"U I!"#$000
1)*6 &':!"S; rename as I!"#$000 in 1))7
1))$ $30!/9 spectrum as allocate in WRC)$
1))).3 &amil concept ? as aopte in netor= part
Stanari9ation or,ani9ations such as 3G''+1))*.1$-;
3G''$ +1)))- ere estalishe
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"ar,et of I!"#$000
Gloal uniform fre@uenc an an stanar; ,loal
seamless covera,e
/i,h efficient spectrum utilit
/i,h @ualit of service; hi,h securit
Eas for evolution from $G sstem
'roviin, multimeia service
Car spee environment 1((=ps
Wal= spee environment 3*(=ps Inoor environment $0(*=ps
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Stanars for 3G
3G sstem
CD!%$000
3G''$
&DD moe
WCD!%
3G''&DDA"DD moe
"D#SCD!%
CW"S
"DD moe
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Main CDMA 3G Proposals
Re,ional Stanar
Or,ani9ation+RSO-
Raio "ransmission
"echnolo,+R""-
U.S. TIA(TR 45.5) cdma2000
T1 W-CDMA
Korea TTA TTA1(~cdma2000)
TTA2(~W-CDMA)
Japa ARI! W-CDMA
"#rope "TSI(SM$ 2) W-CDMA
C%&a CWTS TD-SCDMA
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Spectrum %llocation of I!"#$000
1*60 1)00 1)60 $000 $060 $100 $160 $$00 $$60
I"U
Europe
US% !SS'CS
A D ! !C D C" ' A '"!SSReserve!roadca a#*&+&ar,
$176 !/91))0 !/9
1*60 1)00 1)60 $000 $060 $100 $16
0
$$0
0
$$6
0
1**0 !/9 1)*0 !/9
U!"SGS! 1*00 DEC" !SS
1**6 !/9 $0$6 !/9
$010 !/9
I!" $000
!SSU!"S
Bapan !SSI!" $000!SSI!" $000'/S
1 8 9 5
1 9 1 8
!C
1 8 8 5
A A
$10 !/9
I!" $000$110 !/9 $10 !/9
!SS !SS
CD!%"DD
W::
&DD
W::
1 9 8 0
$0$6!/9
$SM
100CD!%
&DD
W::
1 9 6 0
1 9 2 0
1 9 4 5
China
cellular(! cellular("! cellular("!
1*06 !/9
1 8 6 5
1 8 6 5
1 8 7 0
1 8 8 5
1 8 9 0
1 8 9 5
1 9 1 0
1 9 3 0
1 9 4 5
1 9 6 5
1 9 7 0
1 9 7 5
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3G Spectrum +%fter W%RC$000-
1850 1900 1950 2000 2050 2100 2150 2200 2250
Reserve
UMTSGSM 1800
D
C T MSS
MSS!MT 2000P "
S MSS!MT 2000
!MT 2000
MSS!MT 2000!MT 2000
!MT 2000
MSSUMTS
MSS
# $ % &' # % C
MSS
MSS MSS
#GSM 1800$ PCS%
'&% %C
!TU !&en'i(i)a'ions
*rope
C+ina,,
-apan$
.orea /o P"S
Aeri)as,,,
1700 1750 1800950 1000800 850 900
!MT 2000!MT 2000
2500 2550 2600 2650 2700
!MT 2000
UMTS
GSM
Cell*lar
PDC
Cell*lar
MSS
GSM
I)*
"+++
!MT 2000
!MT 2000
, P
C S
PCS
- -
$
!MT 2000
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oS Re@uirements of Different Services
"ime ela
ualit +2ER-
ac=,roun
conversational
streamin,
interactive
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Course Contents
Chapter 1 Introuction to I!"#$000Chapter 1 Introuction to I!"#$000
Chapter $ CD!% &unamentalChapter $ CD!% &unamental
Chapter 3 'erformance Enhancement !ethosChapter 3 'erformance Enhancement !ethos
Chapter ( WCD!% &DD !oeChapter ( WCD!% &DD !oe
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Chapter $ CD!% &unamental
2.1 Radio Transmission Environment 2.1 Radio Transmission Environment
$.$ !ultiple %ccess "echnolo, an
Duple "echnolo,$.3 CD!% 'rinciple an R%
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!ulti#path Environment
"ime
Receive
si,nal
"ransmitte
si,nal
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&ain,
"ransmitte Si,nal
-40
-35
-30
-25
-20
-15
-10
-5
0
d B
Receive Si,nal
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&ain,
Distance+m-
Receive 'oer+2m-
10 $0 30
#$0
#(0
#70
Slo fain,
&ast fain,
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&re@uenc Selection of &ain,
5arroan
Sstem
&ain,
"ransmit Si,nal Receive Si,nalf f
'+f- '+f-
&ain
,
"ransmit Si,nal Receive Si,nalf f
'+f- '+f-
2roaanSstem
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M*l'i4pa'+ C+ara)'eris'i)s o( Moile C+annel
"+ecroma/e&c ram&&o - re+ec&ocaer&/
d&rac&o
S&/a+ ad&/ ca e d&3&ded &o %ree par & rad&o
e3&rome
a% +o 6&% &/ ra/e o ad&/
!&/ ca+e ad&/+o6-peed 6&% m&dd+e ra/e o ad&/ a+o
6&% +o/ar&%m orma+ d&r&#&o c%aracer&&c
Sma++ ca+e ad&/ a-peed 6&% ma++ ra/e o ad&/
T6o ,p&ca+ ,pe o ma++ ca+e ad&/ &c+#de
Ra,+e&/% d&r&#&o (o +&e-o-&/% ram&&o)
R&cea d&r&#&o(+&e-o-&/% ram&&o)
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Ca'eor o( Tpi)al Ra&io C+annel
Sa&c C%ae+
Idoor C%ae+
7#door-o-&door pa3eme C%ae+
8e%&c+e mo#ed C%ae+
Mo3&/ C%ae+
!&r%-dea% C%ae+
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Chapter $ CD!% &unamental
$.1 Raio "ransmission Environment
2.2 Multiple Access Technology and2.2 Multiple Access Technology and
Duplex Technology Duplex Technology
$.3 CD!% 'rinciple an R%
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!ultiple %ccess "echnolo, an Duple
"echnolo,
!ultiple access technolo,
"ime ivision multiple access +"D!%-
&re@uenc ivision multiple access +&D!%-
Coe ivision multiple access +CD!%-
Duple technolo,
"ime ivision uple +"DD-
&re@uenc ivision uple +&DD-
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"raffic channels ifferentusers are assi,ne uni@ue
coe an transmitte over
the same fre@uenc an;
for eample; WCD!% an
CD!%$000
"raffic channels ifferent fre@uenc ans
are allocate to ifferent users;for eample;
%!'S an "%CS
"raffic channels ifferent time slots
are allocate to ifferent users; for
eample; D%!'S an GS!
& r e @ u
e n c 3
" i m e
'oer
& r e @ u
e n c 3
" i m e
'oer
& r e @ u
e n c 3
" i m e
'oer
&D!%
"D!%
CD!%
U s e r
U s e r
U s e r
U s e r
U s e r
U s e r
!ultiple %ccess "echnolo, an Duple
"echnolo,
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Characteristics of CD!% Sstem
/i,h Spectral Efficienc
&re@uenc multiple coefficient is 1.
soft capacit
ualit Covera,e
Interference
Self#interference sstem
% UE transmission poer is interference for another UE.
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'rocessin, 'roceure of CD!% Sstem
Source
coin,
Channel
coin,Spreain, !oulation
Source ecoin,
Channel
ecoin, Despreain, Demoulation
Raio channel
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Chapter $ CD!% &unamental
$.1 Raio "ransmission Environment
$.$ !ultiple %ccess "echnolo, an
Duple "echnolo,
2.3 CDMA rinciple and RA!E Technology 2.3 CDMA rinciple and RA!E Technology
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correlation
Correlation is a measure of similarit of eteen an to
aritrar si,nals.
EF%!':E
*1 1 #1 1 1 1 1 1
#1 1 #1 1
ero correlation Ortho,onal si,nals
#1 1 #1 1
#1 1 #1 #11 1 1 1 1 correlation
Ientical si,nals
H1
0
#1H1
0
#1
H1
0#1
H1
0
#1
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%utocorrelation
%utocorrelation is relate to the muti#path interference characteristic.
Dela time +chip-
Correlation
Dela time se@uence correlation
0 #1 #1 #1 1 1 #1 1 1
1 #1 #1 1 1 #1 1 #1 #1A $ #1 1 1 #1 1 #1 #1 #1A
3 1 1 #1 1 #1 #1 #1 #1A
( 1 #1 1 #1 #1 #1 1 #1A 6 #1 1 #1 #1 #1 1 1 #1A
7 1 #1 #1 #1 1 1 #1 #1A
1
Eample #1 #1 #1 1 1 #1 1
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Confi,uration of Gol Se@uence Generator
clong00n
clong0"0n
S% LS%
Gol se@uence is use as scramlin, coe in WCD!%
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Spreain, an Despreain, +DS#CD!%-
Spreading
$espreading
Chip
Sym2ol
$ata
Spreading code
Spreading signal
$ata3code
$ata
Spreading3code
1
-1
1
-1
1
-1
1
-1
1
-1
Spreading code
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$esired signal
4ther user5s signal
$esired spreading signal
Spreading code
$ata after despreading
4ther spreading signal
4ther signal after integration
1
-1
1
-1
1
-1
-
1
-1
-
$ata after integration
4ther signal after despreading
Spreain, an Despreain, +DS#CD!%-
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Spreain, coe
Sprea&in )o&e
Si,nal
Comination
Spectrum %nalsis of Spreain, Despreain,
5arroan si,nal
f
'+f-
2roaan si,nal
'+f-
f
5oise
'+f-
f
5oiseHroa&an& sinal
'+f-
f
Recovere si,nal
'+f-
f
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'rinciple of R%
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Structure of R%
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%vanta,es of CD!%
R%
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Course Contents
Chapter 1 Introuction to I!"#$000Chapter 1 Introuction to I!"#$000
Chapter $ CD!% &unamentalChapter $ CD!% &unamental
Chapter 3 'erformance Enhancement !ethosChapter 3 'erformance Enhancement !ethos
Chapter ( WCD!% &DD !oeChapter ( WCD!% &DD !oe
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Introuction to Diversit "echni@ue
Reuce the effects of fain,
fast fain, cause multipath
Slo fain, cause shaoin,
Improve the reliailit of communication
Increase the covera,e an capacit
!acroscopic iversit
Soft hanover an softer hanover Reuce lar,e#scale fain,
!icroscopic iversit
Diversit techni@ue is use to otain uncorrelate
si,nals for cominin,
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!icroscopic Diversit
"ime iversit
Channel coin,; 2loc= interleavin,; error#correction
&re@uenc iversit
"he user si,nal is istriute on the hole anith
fre@uenc spectrum
Space iversit
Receive iversit
"ransmit iversit
'olari9ation iversit
8ertical polari9ation
/ori9ontal polari9ation
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2asic Cominin, !ethos
!aimal#Ratio Cominer "he mutipath si,nals are ei,hte proportional to their
si,nal S5R an then summe.
E@ual#Gain Cominer
E@ual#,ain cominin, is similar to maimal#ratiocominin,; ut there is no attempt to ei,ht the si,nal
efore aition.
Selection Cominer
Choose the si,nal ith the hi,hest instantaneous @ualit;
so the output @ualit is e@ual to that of the est incomin,
si,nal.
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CDMA R:T: Diversi'
'or6ard +&9 capac&, & %e o+e ec9 o CDMA ce++#+ar
,em capac&,. WCDMA adard %a deep+, reearc%ed
%e app+&ca&o o ram&&o d&3er&,. :e6 ram&
d&3er&, c%eme %a ee p# or6ard. I 6&++ &mpro3e
or6ard +&9 capac&,.
7pe +oop ram&&o d&3er&,
ram& d&3er&, aed o pace-&me +oc9 cod&/ (STTD)
T&me 6&c%ed ram& d&3er&, o SC; (TSSD)
C+oed +oop ram&&o d&3er&, '!I doma&
S&e e+ec&o d&3er&,(macro d&3er&,) ce++ e+ec&o '!I
doma&
T i'' A ' Di i'
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Transi''er An'enna Diversi'
ase& on Tie4spa)e lo); Co&in
2" 2+ 2 21
2+ 2 2" 21
*2" 21 2+ *2
#ntenna
#ntenna "
Channel 2its
S))$ encoded channel 2its
for antenna and antenna ".
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Tie Si')+e& Transi' Diversi' on SC"
A)ea 1
A)ea 2
ac(
acp
ac(
acp
ac(
acp
S+o)
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Close&
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Re)eivin ((e)'s (or Di((eren' M*l'i4pa'+ Diversi'
5 10 15
S N R(dB)
0.0001
0.001
0.01
0.1
1
E
1 path rayl
2 path rayl
5 path rayl
No atte!at"o
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Smart %ntenna
Wante si,nal
interference
Reuce interferenceIncrease covera,e an capacit
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Smart %ntenna
Omni antenna Directional antenna Smart antenna
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Course Contents
Chapter 1 Introuction to I!"#$000Chapter 1 Introuction to I!"#$000
Chapter $ CD!% &unamentalChapter $ CD!% &unamental
Chapter 3 'erformance Enhancement !ethosChapter 3 'erformance Enhancement !ethos
Chapter ( WCD!% &DD !oeChapter ( WCD!% &DD !oe
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Characteristics of WCD!% &DD
Channel anith 6!/9
Chip rate 3.*(!cps
&rame len,th 10ms
8oice coin, %!R +%aptive !ulti#Rate-
Uplin= an onlin= moulation 'S
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Characteristics of WCD!% &DD
Satisf the minimum performance re@uirement of I!"$000
Compatile ith GS!#!%' core netor=
Comparativel stea version R)) has een release
Support open loop an close loop transmit iversit moe
Support Common 'ac=et Channel+C'C/- an Donlin= Share
Channel; aapt to Internet ata access moe
Support macro iversit; selection iversit of 5oe2 location
Support ifferent fast poer control al,orithms an open loop;out loop poer control
&ull support UE locatin, services
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WCD!% 8oice Evolution
%opt %!R voice coin,; an support voice @ualit of
(.6
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Data Service Evolution of WCD!%
Support maimum $!ps ata service
Support pac=et sitch
%opt %"! platform currentl
'rovie oS
Common 'ac=et Channel+C'C/- an Donlin= Share
Channel+DSC/- can support Internet pac=et services etter
'rovie moile I' service+namic allocation of I' aresses-
"&CI omain provies namic ata rate
'rovie hi,h#@ualit support for uplin=#onlin= smmetric
ata service; such as voice; vieo phone; conference "8
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