Owa200002 Wcdma Ran Fundamental Issue 1.1

7/17/2019 Owa200002 Wcdma Ran Fundamental Issue 1.1

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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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Contents

. - &verview

2. C!"A 1rinciple

. C!"A $etwor Architecture and protocol

structure

3. C!"A ireless %undamental


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Contents

1. 3G Overview

2. C!"A 1rinciple


structure



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!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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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


7/29Page7Copyright 2008 Huawei Technologies Co., Ltd. All rights reserved.

Contents

. - &verview

&. CDMA Princi(le


structure




"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?



"ultiple Access Technology

Frequ

ency

Time

Power

FDMA

Frequ

encyTime

Power

TDMA

Power

Time

CDMA

Frequency



"ultiple Access and !upleTechnology !uple Technology

%re/uency division duple >%!!?

Time division duple >T!!?



!uple Technology

Time

Frequency

Power

TDD

U!" #

U!" $

D%

U%

D%

D%

U%

FDD

Time

Frequency

Power

U% D%

U!" #

U!" $



Contents

. - &verview

2. C!"A 1rinciple

3. #CDMA Networ) Architect*re %n! (rotocol

str*ct*re




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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)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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-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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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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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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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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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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Contents

. - &verview

2. C!"A 1rinciple


structure

. #CDMA #ireless 4*n!%$ent%l


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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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ireless 1ropagation

"eceived

i.na&

Transmitted

i.na&

Transmission %oss/

Path %oss 0 Mu&ti,path Fadin.

Time

Amp&itude


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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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%ading Categories

%ading Categories 5low %ading

%ast %ading


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!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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!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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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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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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Owa200002 Wcdma Ran Fundamental Issue 1.1

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