omf000001 um interface and radio channels issue2.1

7/21/2019 OMF000001 Um Interface and Radio Channels ISSUE2.1

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Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.

m !nter"ace and#adio Channels


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Pa e2Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.

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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5/44


#adio Access TechnologyTime

.DMA

.re"en'&

TDMATime

.re"en'&

CDMA

.re"en'&

Time

Coe


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#adio Access Technology

Time.DMA

.re"en'&

TDMATime

.re"en'&

CDMA

.re"en'&

Time

Coe


7/44Pa e7Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.

Contents

(. )verview

2. Processing of Voice Signal

'. #adio Channel



Voi'e A/DA/D2H3 1!bit S,ee'h

'oin4

S,ee'h

'oin4Se4me

nt%tion

Se4me

nt%tion

0ms

1!(bit/sCh%nne# 'oin4Ch%nne# 'oin4

Inter#e%5in4Inter#e%5in4 B"rst $orm%ttin4B"rst $orm%ttin46n'r&,tion6n'r&,tion

7(bit/s

Mo"#%tionMo"#%tion

!!7(bit/s

Tr%nsmission

%oice &ignal $rocessing



&peech Coding

The coding mode is called #egular $ulse *+citedLong Term $rediction -#$*LT$.

!t wor/s as "ollow 1H3 o" sampling is per"ormed

4rst, then divided into "rames with 20ms5 every"rame has su7"rames5 the duration o" every su7

"rame is 8ms5 and the pure 7it rate is ('/7it9s.



B#o'(

'oer

B#o'(

'oer

68'ite

'oer

68'ite

'oer

90bit

:! ;: = 777 777



1 ! < 9 > = 777 777



33 5757 11 2626 11 5757 33

%oice :urst



Tr%nsmission e#%& t

Tr%nsmission e#%& t

TA

The mobi#e ,hone sho"#

sen the si4n%# in %5%n'e

Timing Advance -TA



Timing Advance -TA

Tr%nsmission e#%& t

Tr%nsmission e#%& t

TA

The mobi#e ,hone sho"#

sen the si4n%# in %5%n'e



;re



Prolong battery life andreduce interference

=T>

=T> =iscontinuous Transmission &hut o? the transmission at voice intervals5

)nly transmit &!= "rames@

The transcoder at the #> terminal produces com"orta7le noise.

%A= %oice Activity =etection

!mplemented 7y the transcoder.



=T>

=T> =iscontinuous Transmission &hut o? the transmission at voice intervals5

)nly transmit &!= "rames@

The transcoder at the #> terminal produces com"orta7le noise.

%A= %oice Activity =etection

!mplemented 7y the transcoder.

Prolong battery life and

reduce interference



$ower Control

$rolong 7attery li"e #educe networ/ inter"erence

!nclude 7oth uplin/ power control and downlin/ power control

Level and



Contents

(. )verview

2. $rocessing o" %oice &ignal

3. Radio Channel



.re"en'&

00(H3

19/>ms

BP

S#it

Time

;rame and Channel


23/44Pa e23


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

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

)CCCH*

Voi'e 'h%nne#

)TCH*

.CCH SCH BCCH

)s&stem in$orm%tion*

TCH/.ACH RACH SDCCH .ACCH

SACCH

TCH/HPCH

Common 'h%nne#

)CCH*

Dei'%te 'h%nne#

)DCH*

Lo4i'%# 'h%nne#

Logical Channel Type

B&D00 and =C&(100 have the same logical channel category


24/44Pa e24


FCCH

CH

!CCH

PCH

"#CH

!CCH

CCCH

Common

C$annel

%CCH

"CCH

F"CCH

TCH&F

TCH&H

%CCH

TCH

%edicated

C$annel

=ownlin/ Logical Channel


25/44Pa e25


=ownlin/ Logical Channel

FCCH

CH

!CCH

PCH

"#CH

!CCH

CCCH

Common

C$annel

%CCH

"CCH

F"CCH

TCH&F

TCH&H

%CCH

TCH

%edicated

C$annel


26/44Pa e26


'"CH CCCH

Common

c$annel

%CCH

"CCHF"CCH

TCH&F

TCH&H

%CCH

TCH

%edicated

c$annel

plin/ Logical Channel


27/44Pa e27


plin/ Logical Channel

'"CH CCCH

Common

c$annel

%CCH

"CCHF"CCH

TCH&F

TCH&H

%CCH

TCH

%edicated

c$annel


28/44Pa e28


se o" Logical Channels

&earch "or "re


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(bit 41 )ync$ronou)bit)

36 encry*ted

bit)3bit 6(+25bit

Tail bit Tail bitGuard interval

Data

Access burst (AB): Used in MS initial access

Guard interval

3bit 142bit 3bit (+25bit

Tail bit Tail bitData

Frequency correction burst (FB): Used in frequency synchronizationbetween MS and BTS

3bit 3, encry*tedbit)

3, encry*ted

bit)3bit (+25bit

Tail bit Tail bit Guard intervalDataData

Synchronous burst (SB): Used in timin synchronization between MS

and BTS

:urst

64 )ync$ronou) bit)


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3bit 142 modulation bit) 3bit (+25bit

Tail bit Tail bit Guard interval

!ummy burst (!B): Used in transmission of fillin frames byBTS at timeslots when there is no information deli"ered

:urst

3bit 57 encry*ted bit) 57 encry*ted bit) 3bit (+25bit

Tail bit Tail bit Guard intervalDataData

26bit1 1

Trainin se!uence

Frame

stealin

fla

#ormal burst (#B): Used to carry the information of the traffic channel and

the control channel e$ce%t for &A'


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26-frame multi-frame

TCH"F#SACCH"F $full%rate TCH&

TCH"H#SACCH"H $'alf%rate TCH&

51-frames multi-frameFCCH#SCH#BCCH#CCCH $main BCCH&

FCCH#SCH#BCCH#CCCH#SDCCH"(#SACCH"( $combined BCCH&

BCCH#CCCH $e)tended BCCH&

SDCCH"*#SACCH"* $main SDCCH&

$hysical Com7ination o" LogicalChannel


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&tructure o" ain :CCH1 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, // % S C, C, 0

%rame

ume

r

1 2- 4-5 11

1

12-

1

14-

152-35

,

,

1

,2-

,

,4-

,5

1 multi-frame (1!"#$ %rames& 23.3'ms 6*lin

Channe

lR R R R R R R R R R R R R R//R R R R R

%rame

ume

r

1 2 3 , 4 7 ' 5 1 11 12 13-,4 ,7,

'

,

5

F-FCCH. -CH. !-!CCH. C-CCCH. /-/%. '-'"CH


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&tructure o" Com7ined

:CCH1 multi-frame (1!"#$ %rames& 23.3'ms "ownlin

)rou* )rou*1 )rou*2 )rou*3 )rou*, )r*u*

Channel % S

8

,

C

8

,

% S

C

8

,

C

8

,

% S

"

8

,

"

1

8

,

% S

"

2

8

,

"

3

8

,

% S

$

8

,

$1

8

,

0

Channel % S

8

,

C

8

,

% S

C

8

,

C

8

,

% S

"

8,

"

1

8,

% S

"

2

8,

"

3

8,

% S

$2

8

,

$3

8

,

0

%rame

umer 1

2-

4-

51 11

12

-

1

14

-

15

2 21

22

-

2

24

-

25

3 31

32

-

3

34

-

35

, ,1

,2

-

,

,4

-

,5


Channel "38, R R $28, $38, R//R "8, "18, R R "28,

Channel "8, R R $8, $18, R//R "8, "18, R R "28,

%rame

umer-3 , 4-5 1-13 1,-34 37-, ,1-,, , ,4 ,7-

F-FCCH. -CH. !-!CCH. C-CCCH. %-%CCH +"-"CCH. /-/%. '-'"CH


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&tructure o" Logical ChannelCom7ination ;rameain &=CCH

1 multi-frame (1!"#$ %rames& 23.3'ms "ownlin

Channel"

8,

"1

8,

"2

8,

"3

8,

",

8,

"

8,

"4

8,

"7

8,

$

8,

$1

8,

$2

8,

$3

8,0 0 0

Channel"

8,

"1

8,

"2

8,

"3

8,

",

8,

"

8,

"4

8,

"7

8,

$,

8,

$

8,

$4

8,

$7

8,0 0 0

%rame

umer-3 ,-7

'-

11

12-

1

14-

15

2-

23

2,-

27

2'-

31

32-

3

34-

35

,-

,3

,,-

,7

,

'

,

5


Channel$

8,

$4

8,

$7

8,0 0 0

"

8,

"1

8,

"2

8,

"3

8,

",

8,

"

8,

"4

8,

"7

8,

$

8,

Channel $18,

$28,

$38,

0 0 0 "8,

"18,

"28,

"38,

",8,

"8,

"48,

"78,

$,8,

%rame

umer-3 ,-7

'-

1112 13 1,

1-

1'

15

-

22

23-

24

27-

3

31-

3,

3-

3'

35-

,2

,3-

,4

,7-

%-%CCH. "-"CCH. /-/%


35/44


&tructure o" Logical ChannelCom7ination ;rameTCH

T-TCH."-"CCH. /-/%

1 multi-frame (24!"#$ %rames& 12ms

Channel ! ! ! ! ! ! !/! $ !+++! ! ! ! ! ! ! 0

%rame

umer 1 2 3 ,

4/

1112

13/

1'15 2 21 22 23 2, 2


36/44


0 1 2 3 2044 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 burst $FB&

.ync/ronous burst (.$)

Access burst (A$)

- ',.er frame/01(* su.er%frames/02-34(*TD5A frames $6 'ours7 0* minutes7 36 seconds and 241 milliseconds&

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

;rame


37/44


0 1 2 3 2044 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

%&

"'25

T$ Tail bitT$3

T$3

%&"'25

%& %uard eriodT$3

T$3

%&"'25

T$3

T$3

%& "'25

5" in*ormation bits

2 training

se+uences 5" 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 burst $FB&

.ync/ronous burst (.$)

Access burst (A$)

- ',.er frame/01(* su.er%frames/02-34(*TD5A frames $6 'ours7 0* minutes7 36 seconds and 241 milliseconds&

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

;rame


38/44


PCH RACHACH

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

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

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

Con4guration o" Common ControlChannel


39/44


CCCH Brouping

The B& system supports various /inds o" channelcom7inations -B$#& not ta/en into account, in

which the main :CCH, e+tended :CCH, com7ined

:CCH, and the :CCHC:CH com7ination contain the

CCCH, i.e. all o" the "our com7inations support the

& access. The & are distri7uted to di?erent CCCH

groups 7ased on this "act.


40/44


CCCH Brouping

The B& speci4es that the CCCH can 7e mapped totimeslots 0, 2, and 6 7ut the e+tended :CCH

com7ination can only 7e mapped to timeslots 2,

and 6 7ecause it does not contain ;CCH and &CH.

There"ore, all & synchroniEe with the 7ase station

at timeslot 0 and access the networ/ via di?erent

CCCH.


41/44


$aging Broup

The B& system supports a ma+imum o" DDI1(paging groups. the & can 7e divided into 1( su7

groups at most "rom the opinion o" the paging group.

Jo matter what com7ination mode is adopted, the

num7er o" 7loc/s used "or paging in every 8( multi

"rame does not e+ceed D. The system ena7les the 8(

multi"rame to cycle again , with a


42/44


$aging Broup

!n B& terms, the paging 7loc/ in any 8( multi"rameis called a paging supergroup. There"ore, the

num7er o" paging super"rames in the system is the

Knum7er o" "rames o" the same paging. The num7er

o" paging groups in each supergroup is -D or ' M

Knum7er o" access granted reserved 7loc/s.


43/44


Nuestions

Fhat@s the rate o" voice coding O Fhat are the advantages o" discontinuous

transmission -=T>O

Fhat types o" logical channels are thereO


44/44

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omf000001 um interface and radio channels issue2.1

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