1- Oma310000 Gsm Radio Interface Issue2.20

7/21/2019 1- Oma310000 Gsm Radio Interface Issue2.20

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Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.

m !nter"ace and#adio Channels


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Contents

1. Overview

2. $rocessing o" %oice &ignal

'. #adio Channel


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#adio !nter"ace

Another MSC

HLR/AUC

SMC

PSTN

ISDN

OMC

MS

Um

MS

A-bis

BSC

A

BTS

MSC/VLR


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Communication management (CM)

Communication management (CM)

Radio resources management (RR)

Radio resources management (RR)

Mobility and security management

(MM)

Mobility and security management

(MM)

Integrated management

Integrated management

TCH0 TCH1 TCH SACCH TCH! IDL

TCH0 TCH1 TCH SACCH TCH! IDL

M"#ti$r%me

Ph&si'%# #in( #%&er )L1*

D%t% #in( #%&er )L*

Net+or( %,,#i'%tion #%&er )L!*

Hierarchical &tructure o" m!nter"ace

RACH BCCH ACH/PCH SDCCH SACCH TCH .ACCH


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Contents

1. +verview

2. Processing of Voice Signal

'. #adio Channel


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%oice &ignal $rocessing

((A/DA/D))

2020msms

22.8kbit/s22.8kbit/s

!kbit/s!kbit/s8"#$%!bi8"#$%!bi

tt

!!.8kbit/s!!.8kbit/s

&e'menttion&e'menttion &eec* co+in'&eec* co+in' C*nne, co+in'C*nne, co+in'

-nter,ein'-nter,ein' ncrytionncrytion)) urst 1ormttin' Mo+u,tionMo+u,tion

Tr%nsmission

Voi'e


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Analog/igital Conversion


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&peech Coding

The Enhance Full RateEnhance Full Ratecoding mode is called CELPCELP Code Excited LinearCode Excited LinearPredictive CodingPredictive Coding

The Full RateFull Ratecoding mode is called RPE-LTPRPE-LTPRegular Pulse Excited-LongRegular Pulse Excited-Long

Term Prediction).Term Prediction).

The Half RateHalf Ratecoding mode is called VCELPVCELP((ector-!um Excited Linearector-!um Excited Linear

PredictionPrediction))

!kbit/s!kbit/s20 bits(F3)20 bits(F3)

2 bits(#3)2 bits(#3)

244 bits(F3)244 bits(F3) 2.2kbit/s2.2kbit/s

5.kbit/s5.kbit/s

((A/DA/D))

2020msms

8"#$%!bi8"#$%!bi

tt

&e'menttion&e'menttion &eec* co+in'&eec* co+in'

Voi'e


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Channel Coding

!kbit/s!kbit/s20 bits(F3)20 bits(F3)

2 bits(#3)2 bits(#3)

244 bits(F3)244 bits(F3) 2.2kbit/s2.2kbit/s

5.kbit/s5.kbit/s

((A/DA/D))

2020msms

8"#$%!bi8"#$%!bitt

&e'menttion&e'menttion &eec* co+in'&eec* co+in'

Voi'e

C*nne, co+in'C*nne, co+in'

22.8kbit/s22.8kbit/s45bits(F3/F3)45bits(F3/F3)

228bits(#3)228bits(#3) .4kbit/s.4kbit/s

Block

Coder1:2

Convolutional

Coder


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1 ! 2 3 4 5 666 666 2 2! 2 22 231 ! 2 3 4 5 666 666 2 2! 2 22 23

B

5

136

6

6

23

5

136

6

6

23

106

6

6

20

106

6

6

20

3

16

6

6

2

3

16

6

6

2

1

76

6

6

7

1

76

6

6

7

16

6

6

2

16

6

6

2

4

126

6

6

22

4

126

6

6

22

!

116

6

6

21

!

116

6

6

21

2

1!6

6

6

2!

2

1!6

6

6

2!

6666 6666

B0 B1 B B! B B2 B3 B4

8A9B0: 8A29B1: 8A39B: 8A49B!: 8B9C0: 8B29C1: 8B39C: 8B49C!:8A9B0: 8A29B1: 8A39B: 8A49B!: 8B9C0: 8B29C1: 8B39C: 8B49C!:

.irst inter#e%;in


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%oice 3urst

Ti,Ti,

bitbitTi,Ti,

bitbit

6ur+6ur+

erio+erio+DtDt

DtDt Trinin' sequenceTrinin' sequence

57 encryte+ bits57 encryte+ bits!!

bitsbits8.25 bits8.25 bits2 bits2 bits1

!!

bitsbits57 encryte+ bits57 encryte+ bits 1

((A/DA/D))

2020msms

22.8kbit/s22.8kbit/s

!kbit/!kbit/

ss8"#$%!bit8"#$%!bit

!!.8kbit/!!.8kbit/

ss

&e'menttion&e'menttion &eec* co+in'&eec* co+in' C*nne, co+in'C*nne, co+in'

-nter,ein'-nter,ein' ncrytionncrytion)) urst 1ormttin' Mo+u,tionMo+u,tion

Tr%nsmission

Voi'e


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%oice &ignal $rocessing

33.8 kbit/s

22.8 kbit/s

13 kbit/s

8 kHz13 bits

Transmitting part

Receiving part

Speaker

ReceiverDemodulator

AdaptiveEqualization

De-ciphering

De-interleaving

Channel decoding

Speech decoding

D/A-conversion

TransmitterModulator

Burst formatting

Ciphering

Interleaving

Channel coding

Speech coding

Segmentation

A/D-conversion

Microphone

13 kbit/s

Transmitting part

Receiving part

TransmitterModulator

Burst formatting

Ciphering

Interleaving

Channel coding

D/D-conversion

8 kHz

8 bits64 kbit/s PCM

ReceiverDemodulator

AdaptiveEqualization

De-ciphering

De-interleaving

Channel Decoding

GSM Network

Mobile equipment


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Tr%nsmission e#%& t

Tr%nsmission e#%& t

TA

The mobi#e ,hone sho"#

sen the si


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4re5uency Hopping

Frequency

1 0

Frame

1

1 2

1 !

1 4

Time


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Pro,on' bttery ,i1e n+re+uce inter1erence

/T6

/T67 /iscontinuous Transmission &hut o8 the transmission at voice intervals9

+nly transmit &!/ "rames:

The transcoder at the #6 terminal produces com"orta;le noise.

%A/7 %oice Activity /etection

!mplemented ;y the transcoder.


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$ower Control

$rolong ;attery li"e #educe networ< inter"erence

!nclude ;oth uplin< power control and downlin< power control

Level and 5uality are taudicator

BCCH C%rrier is notin;o#;e in ,o+er 'ontro#6

Time

Si


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Contents

1. +verview

2. $rocessing o" %oice &ignal

3. Radio Channel


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.re"en'&

00(H?

12/3ms

BP

S#it

Time

4rame and Channel


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32107654321

$hysical Channel o" LogicalChannel

0

+i11erent

mess'e

tyes

Logicalchannel

P*ysic, C*nne,

Logicalchannel

Logical

channel

LogicalchannelLogicalchannel

TDMA F3AM

200"

577 s


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8bit 4 sync*ronousbits

! encryte+

bits!bit 8.25bit

Tail bit Tail bit Guard intervalData

Guard interval

!bit 42bit !bit 8.25bit

Tail bit Tail bitData

!bit ! encryte+bits

! encryte+

bits!bit 8.25bit

Tail bit Tail bit Guard intervalDataData

3urst

4 sync*ronous bits

? Access ;urst A37 sed in @& initial access

? 4re5uency correction ;urst 437 sed in "re5uencysynchroniation ;etween @& and 3T&

? &ynchronous ;urst &37 sed in timing synchroniation;etween @& and 3T&


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!bit 42 mo+u,tion bits !bit 8.25bit

Tail bit Tail bit Guard interval

3urst

!bit 57 encryte+ bits 57 encryte+ bits !bit 8.25bit

Tail bit Tail bit Guard intervalDataData

2bit

Trainin !e"uence

Frame !tealin #la

Bormal ;urst B3 sed to carry the in"ormation o" the trac channel and the control

channel eDcept "or #ACH

/ummy ;urst /3

sed in transmission o" =lling "rames ;y 3T& at timeslots when there

is no in"ormation delivered


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Bro%'%st 'ontro# 'h%nne#

)BCH*Contro# 'h%nne#Common 'ontro# 'h%nne#

)CCCH*

Voi'e 'h%nne#

)TCH*

.CCH SCH BCCH TCH/.ACH RACH SDCCH .ACCH

SACCH

TCH/HPCH

Common 'h%nne#

)CCH*

Dei'%te 'h%nne#

)DCH*

Lo


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FCC#

&C#

CC#

PC#

A6C#

CC#

CCC#

Common

C*nne,

&DCC#

&ACC#

FACC#

TC#/F

TC#/#

DCC#

TC#

De+icte+

C*nne,

/ownlin< Logical Channel


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3AC# CCC#

Common

c*nne,

&DCC#

&ACC#FACC#

TC#/F

TC#/#

DCC#

TC#

De+icte+

c*nne,

plin< Logical Channel


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se o" Logical Channels

4CCH

A,,octe si'n,in' c*nne,

Power9on &erc* 1or 1requency correction burst

&erc* 1or sync*ronous burst

:isten to t*e system in1ormtion

Monitor 'in' mess'e

&en+ ccess burst

&et u t*e c,,

A,,octe oice c*nne,

Conerstion

3e,ese t*e c,,

-+,e mo+e

&CH

3CCH

$CH

#ACH

AECH

&/CCH

&/CCH

TCH

4ACCH

De+icte+ mo+e

-+,e mo+e


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26-frame multi-frame

TC$%F&F'CC$%F&('CC$%F )#ull*rate TC$+

TC$%$&F'CC$%$&('CC$%$ ),al#*rate TC$+

51-frames multi-frameFCC$&(C$&BCC$&CCC$ )main BCC$+

FCC$&(C$&BCC$&CCC$&(DCC$%4&('CC$%4 )combined BCC$+

BCC$&CCC$ )e-tended BCC$+

(DCC$%.&('CC$%. )main (DCC$+

$hysical Com;ination o" LogicalChannel


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&tructure o" @ain 3CCH1 multi-frame !1"#$% &rames' 23!.3(ms #ownlin)

*rou+ *rou+1 *rou+2

*rou+3,

same

as

*rou+2'

*r+u+!

Channel & S / C/ & S C/ C/ 00 & S C/ C/

&rame

ume

r

4 1 2-! 5-6 141

1

12-

1!

15-

1624-36

4

1

2-

!

5-

6!4

1 multi-frame !1"#$% &rames' 23!.3(ms 7+lin)

Channe

lR R R R R R R R R R R R R R00R R R R R

&rame

ume

r

4 1 2 3 ! 5 8 ( 6 14 11 12 13-5 8

(

6

!

4

F;FCC#< &;&C#< ;CC#< C;CCC#< 3;3AC#< -;-D:


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&tructure o" Com;ined3CCH 1 multi-frame !1"#$% &rames' 23!.3(ms #ownlin)

*rou+ *rou+1 *rou+2 *rou+3 *rou+ *r+u+!

Channel & S

9

C

9

& S

C

9

C

9

& S

#

4

9

#

1

9

& S

#

2

9

#

3

9

& S

%4

9

%1

9

Channel & S

9

C

9

& S

C

9

C

9

& S

#

4

9

#

1

9

& S

#

2

9

#

3

9

& S

%2

9

%3

9

&rame

umer4 1

2-

!

5-

614 11

12

-

1!

15

-

16

24 21

22

-

2!

25

-

26

34 31

32

-

3!

35

-

36

4 1

2

-

!

5

-

6

!4


Channel #39 R R %29 %39 R00R #49 #19 R R #29

Channel #49 R R %49 %19 R00R #49 #19 R R #29

&rame

umer4-3 ! 5-6 14-13 1-35 38-4 1- ! 5 8-!4

F;FCC#< &;&C#< ;CC#< C;CCC#< D;&DCC# /A;&ACC#< 3;3AC#< -;-D:


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&tructure o" Logical ChannelCom;ination 4rame@ain &/CCH

1 multi-frame !1"#$% &rames' 23!.3(ms #ownlin)

Channel#4

9

#1

9

#2

9

#3

9

#

9

#!

9

#5

9

#8

9

%4

9

%1

9

%2

9

%3

9

Channel#4

9

#1

9

#2

9

#3

9

#

9

#!

9

#5

9

#8

9

%

9

%!

9

%5

9

%8

9

&rame

umer 4-3 -8

(-

11

12-

1!

15-

16

24-

23

2-

28

2(-

31

32-

3!

35-

36

4-

3

-

8

(

6

!

4


Channel%!

9

%5

9

%8

9

#4

9

#1

9

#2

9

#3

9

#

9

#!

9

#5

9

#8

9

%4

9

Channel

%1

9

%2

9

%3

9

#4

9

#1

9

#2

9

#3

9

#

9

#!

9

#5

9

#8

9

%

9

&rame

umer4-3 -8

(-

1112 13 1

1!-

1(

16

-

22

23-

25

28-

34

31-

3

3!-

3(

36-

2

3-

5

8-

!4

D;&DCC#< A;&ACC#< -;-D:


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0 1 2 32044 2045 204 204!

0 1 2 3 4" 4# 504!

0 1 24 25

0 1 24 25 1 4# 500

0 1 4 5 !2 3

T$

3

T$

3

%&

"'25T$ Tail bitT$

3T$3

%&"'25

%& %uard eriodT$3

T$3

%&"'25

T$3

T$3

%& "'25

5" in*ormation bits2 training

se+uences5" in*ormation bits

Constant bit 142

In*ormation bit 3# ,-tended training se+uence 4 In*ormation bit 3#

.ync/ronous se+uence 41 In*ormation bit 3

ormal burst ($)

Fre"uenc correction bur!t )FB+

.ync/ronous burst (.$)

Access burst (A$)

1 ,er #rame204. !uer*#rame!271564.TD' #rame! )3 ,our! 2. minute! 53 !econd! and 760 milli!econd!+

1 suer*rame132TMA *rames ('12 seconds)

1 multi*rame2TMA *rames (120ms) 1 multi*rame51TMA *rames (30013ms)

1TMA *rame" timeslots (12024'15ms)

1 timeslot15'25 bit duration (1520'5!!ms)(1 bit duration 4"133'"us)

$CCCCC.CC

TC.ACCT6ACC

4rame


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PCH RACHACH

Do+n#in( CCCH U,#in( CCCH

Ho+ to etermine the tot%# CCCH reso"r'es o$ the 'e##@ Ho+ to

%##o'%te ACH %n PCH re%son%b#&@

Con=guration o" Common ControlChannel


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&ummary

!n this course, we have learned7 $rocessing o" %oice &ignal

#adio Channel in m !nter"ace

Fey Technical in m !nter"ace


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T,ank ou,uaeicom

1- Oma310000 Gsm Radio Interface Issue2.20

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Transcript of 1- Oma310000 Gsm Radio Interface Issue2.20