Owa200002 Wcdma Ran Fundamental Issue 1.1
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Transcript of Owa200002 Wcdma Ran Fundamental Issue 1.1
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www.huawei.com
Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
C!"A #A$%undamental
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Page2Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
&'(ectives
)pon completion o* this course, you will 'e a'le to+
!escri'e the development o* -
&utline the advantage o* C!"A principle
Characterie code se/uence
&utline the *undamentals o* #A$
!escri'e *eature o* wireless propagation
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Page3Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
Contents
. - &verview
2. C!"A 1rinciple
. C!"A $etwor Architecture and protocol
structure
3. C!"A ireless %undamental
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Page4Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. 3G Overview
2. C!"A 1rinciple
. C!"A $etwor Architecture and protocol
structure
3. C!"A ireless %undamental
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Page5Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
!i4erent 5ervice, !i4erentTechnology
AMPS
TACS
NMT
Others
- 680sAnalog
GSM
CDMAIS-95
TDMAIS-136
PDC
2- 660s!igital
Technoloies!rive
-7"T2000
"MTS
#CDMA
c!$%&'''
De$%n!s!rive
TD-
SCDMA
3G provides co$(ositiveservices for both operators and subscribers
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Page6Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
9ands C!"A )sed
"ain 'ands 620 : 680"H ; 20 : 2)5A? Australia?
. . .
%re/uency channel num'er central *re/uencyB=, *ormain 'and+
)L *re/uency channel num'er 62 6888
!L *re/uency channel num'er + 0=2 088
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Contents
. - &verview
&. CDMA Princi(le
. C!"A $etwor Architecture and protocol
structure
3. C!"A ireless %undamental
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"ultiple Access and !upleTechnology "ultiple Access Technology
%re/uency division multiple access >%!"A?
Time division multiple access >T!"A?
Code division multiple access >C!"A?
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"ultiple Access Technology
Frequ
ency
Time
Power
FDMA
Frequ
encyTime
Power
TDMA
Power
Time
CDMA
Frequency
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"ultiple Access and !upleTechnology !uple Technology
%re/uency division duple >%!!?
Time division duple >T!!?
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!uple Technology
Time
Frequency
Power
TDD
U!" #
U!" $
D%
U%
D%
D%
U%
FDD
Time
Frequency
Power
U% D%
U!" #
U!" $
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Contents
. - &verview
2. C!"A 1rinciple
3. #CDMA Networ) Architect*re %n! (rotocol
str*ct*re
3. C!"A ireless %undamental
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C!"A $etwor Architecture
+NS
+NC
+NS
+NC
Core Networ)
No!e , No!e , No!e , No!e ,
I*-CS I*-PS
I*r
I* I*I* I*
CN
"T+AN
""*
CS PS
I*-CSI*-PS
CSPS
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Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
)u 7nter*ace protocol structure
/3
con
trol
control
control
con
trol
Cplane signaling )plane in*ormation
P0
/&2MAC
/1
+/C
!C$t-C
/&2+/C
MAC
+/C+/C
+/C
D*(lic%tion %voi!%nce
)u5 'oundary
/&2,MC
control
PDCPPDCP /&2PDCP
!C$t-C
++C
+/C+/C
+/C
+/C
,MC
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Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
-eneral 1rotocol "ode *or )T#A$Terrestrial 7nter*ace
The structure is 'ased on the principle that the layers andplanes are logically independent o* each other.
Application
Protocol
Data
Stream(s
A!"AP(s
Transport
#et$or%
!a&er
P'&sical !a&er
Signaling
earer(s
"ontrol Plane )ser Plane
Transport #et$or%
)ser Plane
Transport #et$or%
"ontrol Plane
*a+io
#et$or%
!a&er
Signaling
earer(s
Data
earer(s
Transport #et$or%
)ser Plane
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Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
7uC5 7nter*ace
A%CAP
Contro& P&ane
Transport 'etwor(
Contro& P&ane
User p&ane"adio'etwor(
%ayer
Transport 'etwor(
User P&aneTransport
'etwor(
%ayer
A )
"A'AP
AA%# PAT*
ATM
Physica& %ayer
AA% ''+
CCP
MTP3,)
+u UP
AA% ''+
MTP3,)
Transport 'etwor(
User P&ane
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Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
7u15 7nter*ace
Contro& P&ane User p&ane"adio
'etwor(
%ayer
Transport 'etwor(
User P&aneTransport'etwor(
%ayer
Transport 'etwor(
User P&ane
C
"A'AP
ATM
AA% ''+
CCP
MTP3,)
+u UP
AA% Type -
+P
UDP
GTP,U
Physica& %ayer
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Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
7u' 7nter*ace
A%CAP
Contro& P&ane
Transport 'etwor(
Contro& P&ane
User p&ane"adio
'etwor(
%ayer
Transport 'etwor(
User P&ane
Transport
'etwor(
%ayer
Transport 'etwor(
User P&ane
')AP
AA%# PAT*
ATM
Physica& %ayer
AA% U'+
+ub FP
AA% U'+
'CP CCP
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Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
7ur 7nter*ace
A%CAP
Contro& P&ane
Transport 'etwor(
Contro& P&ane
User p&ane"adio'etwor(
%ayer
Transport
'etwor(
%ayer
A )
"A'AP
AA%# PAT*
ATM
Physica& %ayer
AA% ''+
CCP
MTP3,)
+ur Data
tream
AA% ''+
MTP3,)
Transport 'etwor(
User P&aneTransport 'etwor(
User P&ane
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Page20Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
Contents
. - &verview
2. C!"A 1rinciple
. C!"A $etwor Architecture and protocol
structure
. #CDMA #ireless 4*n!%$ent%l
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Page21Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
1rocessing 1rocedure o* C!"A5ystem
So*rceCo!in
Ch%nnel Co!in Interle%vin
S(re%!in Mo!*l%tion
So*rceDeco!in
Ch%nnel Deco!in Deinterle%vin
Des(re%!in
De$o!*l%tion
Tr%ns$ission
+ece(tion
chi( $o!*l%te!sin%l
it s$ol
Service
Sin%l
+%!ioCh%nnel
Service
Sin%l
"eceiver
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Page22Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
ireless 1ropagation
"eceived
i.na&
Transmitted
i.na&
Transmission %oss/
Path %oss 0 Mu&ti,path Fadin.
Time
Amp&itude
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Page23Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
1ropagation o* #adio 5ignali.na& at Transmitter
i.na& at "eceiver
30
=
0
2=
20=
0
=
d9
0
0d9m
20
=
0
=
=
0
=
20
Fadin.
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Page24Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
%ading Categories
%ading Categories 5low %ading
%ast %ading
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Page25Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
!iversity Techni/ue
!iversity techni/ue is used to o'tain uncorrelatedsignals *or com'ining
#educe the e4ects o* *ading
%ast *ading caused 'y multipath
5low *ading caused 'y shadowing
7mprove the relia'ility o* communication
7ncrease the coverage and capacity
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Page26Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
!iversity
Time diversity Channel coding, 9loc interleaving
%re/uency diversity
The user signal is distri'uted on the whole 'andwidth
*re/uency spectrum
5pace diversity
1olariation diversity
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Page27Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
1rinciple o* #ADE #eceiver
+eceive set
Correl%tor 1
Correl%tor &
Correl%tor 3
Se%rchercorrel%tor
C%lc*l%te theti$e !el%%n! sin%lstrenth
Co$inerThe
co$ine!sin%l
tt
s7t8 s7t8
+A receiver hel( to overco$e on the $*lti-(%th :%!in %n! enh%ncethe receive (er:or$%nce o: the sste$
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Page28Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.
5ummary
7n this course, we have discussed 'asic concepts o*C!"A+
5preading ; !espreading principle
)T#A$ Foice Coding
)T#A$ Channel Coding
)T#A$ 5preading Code
)T#A$ 5cram'ling Code
)T#A$ "odulation
)T#A$ Transmission;#eceiving
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