86468417 05 Dynamic Abis System Description for BSS10

8/10/2019 86468417 05 Dynamic Abis System Description for BSS10

http://slidepdf.com/reader/full/86468417-05-dynamic-abis-system-description-for-bss10 1/35

NOKIA Company Confidential

RAS Dynamic Abis System Description for BSS10 Page 1 (35)10.9.2004 Version 2.00

Dynamic Abis

System Description for BSS10

Version 2.00

Filename:

ey!ords:

Prepared "y #e$ie!ed %ppro$ed &o' ment m"er **e+ ,- /%





Document History

Version &ate % t or(s) C anges and ot er notes0.01 ,dit 9. .1999 *arri *elminen &o' ment started0.02 ,dit 9. .1999 ,sa - r$el C apters 4. . and part of 5. . and . . added0.03 ,dit

0.04 ,dit0.05 ,dit

0.0 ,dit

19. .1999

2 . .199930. .1999

30. .1999

,sa - r$el

**e**e

,-

Comments from eif Friman added to ' apter4. .Part of ' apters 2. and 3. addedC anges from 4. meeting and ' apters 2 and 3modified+ &yn %"is sim lation added C anges from 4. meeting and added ' apter 5+edited "y %rto angas

0.0 ,dit 2 .9.1999 ,- 6**e C anges from 1.9. meeting0.0 ,dit 1 .10.1999 ,- C anges after 29.9 and 15.10 meetings1.00 2 .10.99 ,- Corre'tions after 19.10 meeting+ first a''epted

$ersion1.01,dit 20.3.2000 ,- 7pdating to semi8dynami' ' apters 4 81.02,dit 23.3.2000 **e 7pdating to semi ' apters 1831.03,dit 05.04.2000 ,- 7pdating ' apter 42.00 1 .04.2000 ,- Comments added+ $ersion for ;;102.00 0 .05.2000 ,- Comments and 'orre'tions





<a"le of Contents

Page1 INTROD !TION............................................................................................................................................................."

1.1 & =C7>, < = V,#V?,@ ...........................................................................................................................................................51.2 ; C=P, % & # ,%&,#;*?P .........................................................................................................................................................51.3 & ,F? ?<?= ; % & < ,#>? = =AB .............................................................................................................................................51.4 # , %<,& &=C7>, <; ...........................................................................................................................................................

2 D#NA$I! ABIS OV%RVI%&......................................................................................................................................'

2.1 P #? C?P , =F ; ,>? &B %>?C %?; .........................................................................................................................................

2.1.1 Physical Connections.........................................................................................................................................7 2.1.2 Semi Dynamic Abis............................................................................................................................................82.2 ,<@=# , ,>, <; % & , <?<?,; ? V= V,& ......................................................................................................................102.3 C % C7 %<? A <*, =C ? A =F ;,>? 8&B %>?C %?; ,&%P ................................................................................................102.4 < == ; ................................................................................................................................................................................1

2.4.1 Planning Tools.................................................................................................................................................17 2.4.2 Management Tools...........................................................................................................................................18

2.5 < #% ;>?;;?= <=P= =A?,; ..................................................................................................................................................12. < #% ;>?;;?= ? , ? <,#F%C,; ..........................................................................................................................................22

( TRANS$ISSION I) S*%!I)I!ATION O) D#NA$I! ABIS ..........................................................................2(

3.1 = V,#V?,@ =F <#% ;>?;;?= ; ?A % ? A %B,#; ..................................................................................................................233.2 %PP ?C%<?= %B,# ; P,C?F?C%<?= ....................................................................................................................................23

3.2.1 Dynamic Abis Transmission Management ............................................................................................... .....233.2.2 Testing of Pool after Commissioning an in !se...........................................................................................24

3.3 < #7 ,< ; P,C?F?C%<?= ........................................................................................................................................................243.4 P *B;?C% ; P,C?F?C%<?= .....................................................................................................................................................24

3.4.1 A itional Physical "e#$irements to %1& T1& 'DS(......................................................................................243.4.2 C)ty*e Crossconnections.................................................................................................................................2+

+ O,$ I) S*%!I)I!ATION O) D#NA$I! ABIS..................................................................................................2-

4.1 = V,#V?,@ .........................................................................................................................................................................24.2 & B %>?C %?; P== * % & ? A ..........................................................................................................................................2

4.2.1 Creation of the Dynamic Abis Pool.................................................................................................................27 4.2.2 Mo ification of the Dynamic Abis Pool..........................................................................................................27 4.2.3 Deletion of the Dynamic Abis Pool.................................................................................................................27 4.2.4 ,C- ,TS T"/ Creation...................................................................................................................................28

4.3 % ?; %7<=C= F?A7#%<?= ..................................................................................................................................................24.4 % ?; ==P < ,;< .................................................................................................................................................................24.5 # %&?= ,<@=# # ,C=V,#B ...............................................................................................................................................29

" T% %!O$ I) S*%!I)I!ATION O) D#NA$I! ABIS.....................................................................................(0

5.1 & B %>?C %?; P== * % & ? A ..........................................................................................................................................30+.1.1 Creation of ynamic Abis Pool........................................................................................................................30+.1.2 %DAP !*gra e................................................................................................................................................30+.1.3 %DAP Do ngra e............................................................................................................................................31

5.2 C ?#C7?< ; @?<C*,& ; ,#V?C,; .............................................................................................................................................315.3 P %C ,< ; @?<C*,& ; ,#V?C,; ...............................................................................................................................................32

+.3.1 er ie of Signaling (ayers..........................................................................................................................32+.3.2 P"S T,-........................................................................................................................................................33

+.3.3 % P"S T,-.....................................................................................................................................................33+.3.4 (1 S*ecification...............................................................................................................................................34

- S% !AS%S......................................................................................................................................................................(+





' T%STIN/..........................................................................................................................................................................("

.1 < #%C, <== ; (% ?; )..........................................................................................................................................................35





1 INTROD !TION

1.1 Document O er ie

< is do' ment is a s ort des'ription of semi dynami' %"is+ it s "e a$ior and ser$i'es.< e ' apter 2 gi$es a s ort o$er$ie! of t e semi dynami' %"is. < e ' apter 3 des'ri"est e transmission8related t ings and des'ri"es s ortly possi"le net!orD 'onfig rations.< e ' apter 4 des'ri"es t e =6> ser$i'es of t e semi dynami' %"is. < e ' apter 5des'ri"es P; tele'om ser$i'es related to semi dynami' %"is. < e ' apter goes t ro g

some se 'ases. C apter gi$es some reE irements to t e tra'e tools to s pport semidynami' %"is.

1.2 Scope an Rea ers3ip

< e do' ment is !ritten for people in #6&.

1.( Definitions an Termino4o5y

%C pool % to'onfig ration pool

;C ase ;tation Controller

<; ase <rans'ei$er8;tation

;; ase ;tation ; "system

C;81 C;84 AP#; ' annel 'oding s' emes

,&%P ,AP#; &ynami' %"is Pool

,&A, ,n an'ed &ata rates for A;> e$ol tion( e! mod lation s' eme for A;>)

,AP#; ,n an'ed Aeneral Pa'Det #adio ;er$i'e

FC @ireline transmission nit !it one line interfa'e to t e2 >"it/s (,1) or 1.5 >"it/s (<1) transmission line. FC,1/<1 as no 'ross8'onne'tion 'apa"ility.

FGC @ireline transmission nit !it fo r line interfa'es tot e 2 >"it/s (,1) or 1.5 >"it/s (<1) transmission line.FGC ,1/<1 as 'ross8'onne'tion 'apa"ility at D"it/sle$el.

%P& inD %''ess Proto'ol

>C;81 >C;89 ,AP#; ' annel 'oding s' emes

;A; ;er$ing AP#; ; pport ode< F <emporary lo'D Flo! (AP#; data transfer ('all))

PC7 Pa'Det Control 7nit




RAS Dynamic Abis System Description for BSS10 Page (35)10.9.2004 Version 2.00

## #adio #eso r'e>aster %"is ' annel 1 D"it/s %"is ' annel ! i' 'arries all t e information

in A>; and tells t e dynami' %"is s "8<; s in t e 8P; ,AP#;

1.+ Re4ate Documents

%D % System "e#$irement S*ecification #%;/A;> ; 0 5 33%,

%D % Transmission System St$ y %D % System Test Plan

Cell$lar A$toconfig$ration System -$nctional S*ecification

% P"S "e#$irement S*ecification

P"S % P"S A,5S (1 5nterface S*ecification

,TS S6 Telecom -$nctional S*ecification s for ,SS10

%D % !C DSP 5nterface S*ecification

,SC Dynamic Abis "e#$irement S*ecification





2 D#NA$I! ABIS OV%RVI%&

2.1 *rincip4e of Semi Dynamic Abis

2.1.1 P ysi'al Conne'tions

< e 2>(31H 4 D"it/s) %"is ' annel 'onne'tions are di$ided in t!o different types: <#Gdedi'ated and <#G s ared. ;C s dynami' pool must be isib4e e6act4y t3e same as in

peer <;.<#G dedi'ated+ permanent logi'al point to point type %"is ' annel 'onne'tions are

pro$ided "et!een ;C and <#G nits of t e <;. < e a't al implementations are 8type "ran' ing in ' ain+ point8to8point and star net!orDs+ and prote'ti$e B8type'onne'tions in t e loop net!orDs.

<#G s ared+ permanent logi'al point to m ltipoint type %"is ' annel 'onne'tions are pro$ided "et!een ;C and <#G nits of t e <;. < e a't al implementations are digital'ommon ' annel (C0) 'onne'tions in all topology net!orDs. ;ee Fig re 1

3 ©NOKIA 1999 FILENAMs.PPT/ DATE/ NN

EDGE Transmission

:;C:<;1 :<;2 :<;3

<; 185<; 810

<;11815

; ared

&edi'ated

<;1 830 <;1 830 <;1 830C

• The A-bis chain is spli in! "! #pes$ De%icae% &!' Mase' channels(T)*/OM+ si,nallin, an% !l% T)*s ha'e% &!' EDE T)*s

C C

B B B

• A%0ana,es

The 'anissi!n capaci # can be all!cae% &!' 'ansissi!n bl!c2N! chan,es ! 3T !' 34 564!paibili# "ih p'e0i!7s ,ene'ai!n 3Ts7pp!'s 'ansissi!n a7!c!n&i,7'ai!n

• Disa%0ana,es ilen !ens insi%e a call cann! be s7pp'esse%

-ig$re 1 Share connections *rinci*le of $sage; ared pool 'ontains digital 'ommon ' annel 'onne'tions "et!een ;C and <;. < e;C grants t e permission to se a parti' lar timeslot for ea' <#G on time domain "asis.





For e ample+ if lot of transmission 'apa'ity is needed at t e <;+ t e ;C may grant permissions for <#G to start sing timeslot(s) and grant permissions for ot er <#G to start

sing ot er timeslot(s) from t e s ared pool.

1 ©NOKIA 1999 FILENAMs.PPT/ DATE/ NN

ETRX ETRX ETRX

EDGE Transmission

• A-bis lin2 %i0isi!n in! "! l!,icalp!!ls$ T)* %e%icae% an% T)* sha'e%

• ha'e% p!!l ipleenai!n "ih 4#pe c!nneci!ns

• Ope'ai!n p'inciple !& 4- #pe

c!nneci!n$+plin2 sha'e% - %!"nlin2 b'!a%casApplicable in chain( l!!p an% eshne"!'2s

• 4 c!n'!ls he 7sa,e !& sha'e% p!!liesl!s !n capaci# %ean% basis

• As#e'ic %!"nlin2 / 7plin2capaci# all!cai!n p!ssible

BB

&

DBUS

DIR2DIR1

EDGE BTS

TRU

-ig$re 2 C)ty*e *ool

2.1.2 ;emi &ynami' %"is

%"is PC> as 1 to 4 D"it/s for <#Gsigs for ea' <#G+ 1 to 4D"it/s for =>7sig and1 D"it/s <; for ea' <C* in a <#G. %dditionally operator 'an lo'ate ,&%P for,AP#; sage. < e %"is PC> reso r'es for traffi' timeslots+ ! i' reE ires more t an1 D"it/s+ are nted dynami'ally. < is implementation ena"les dimensioning of t e %"istransmission "y t e real traffi' amo nt and 'an pro$ide great sa$es for operator

transmission 'osts.





BCCH TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #TRX 1 O$U 1 TXR 2 O$U 2TCH % TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #BCCH TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #TRX 3 O$U 3TCH % TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #TRX O$U TXR ! O$U !BCCH TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #

123

!"#

'

1%11121311!1"1#11'2%21222322!2"2#22'3%31

TCH % TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #TRX " O$U "BCCH TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #TRX # O$U # TXR O$U TCH % TCH 1 TCH 2 TCH 3TCH TCH ! TCH " TCH #

(C$ )it* & ETRX+,%

ETRX 1

ETRX 2

ETRX 3

ETRX

ETRX !

ETRX "

ETRX #

ETRX

EG(RS-ynami. /0i, poo

-ig$re 3 %9am*le Abis PCM ith semi ynamic Abis

*S ser ices

For P; ser$i'es t e dynami' %"is implementation means e tra signaling "et!een ;Cand <;. ?n dynami' %"is t e 1 D"it/s >aster %"is ' annel for AP#; P&<C* is stati'and all additional 'apa'ity is nted dynami'ally ! en t e P&<C* is in'l ded in(,)AP#; territory.





2.2 Net or7 %4ements an %ntities In o4 e

< e dynami' %"is p ts reE irements to =;; and ;;. >ain ' anges are aimed to <;and ;C soft!are+ see ' apters 4 and 5. et!orD management elements reE ire ne!!ay to manage t e dynami' %"is pool. >anagement ;ystem s all also s o! statisti'display of t e stat s of dynami' pool+ in real time and some Dind of long8term statisti'.

< e dynami' %"is does not 'a se any reE irements to t e ;A; or ot er AP#; "a'D"one net!orD elements or a"o$e t e ;C (no ' anges >;C+ * #+ V #).

< e net!orD planning tool+ <otem !ill s pport t e dynami' %"is Pool planning. < ereE irements for <otem are openI e.g. t e limits of t e dynami' %"is pool and ! at aret e parameters+ ! i' a$e effe't to t e dynami' %"is pool

2.( !a4cu4atin5 t3e b4oc7in5 of semi8 ynamic Abis %DA*

,a' ,AP#; radio timeslot taDes 1 master s "timeslot from t e fi ed JpoolJ and 4 sla$es "timeslots (K1 4D"it/s timeslot) from t e ,&%P !it t e >C;82 >C;89 ' annel'odings. ,&%P pool siLe 'an "e 'al' lated ! en !e Dno! o! many <#Gs are'onne'ted to ' osen ,<MPC> and ! at Dind of signaling is sed in t e 'onne'ted <;s.

@ en !e Dno! t e pool siLe and o! many air8timeslots are 'ompeting of t e sage oft e pool !e 'an 'al' late t e %"is o$erflo! ("lo'Ding) $al e. Pool o$erflo! ("lo'Ding)'an "e 'al' lated sing t eorem of "inomial distri" tion.

9n 9 * * 9

n 9 P −−

= )1()(

+ @ ere is t e n m"er of s ''esses in trials+ p is t e tiliLation of t e sla$e (,)AP#;' annels (C;81+ C;82+ >C;81 and re8transmission are not in'l ded in it)+ n are t e AP#;(air)8timeslots in se. Pro"a"ility of pool o$erflo! ("lo'Ding) !ill "e:

(n+ +p)K ∑+=

n

: 9

9 P 1

)(

+ @ ere is t e a$aila"le pool siLe.

lo'D errors and a'Dno!ledgement messages are taDen into a''o nt !it t e parameter p (sla$e (,)AP#; ' annel tiliLation.)

%s said 'al' lation of t e pool o$erflo! ("lo'Ding) reE ires t e Dno!ledge of t e planned 2> pat systems. @e a$e to taDe into a''o nt all of t e ,dge "ase stations int e ,<MPC> (2>) frame. < is !ill reE ire 'reation of t e 2> pat system "efore !e 'an





'al' late t e "lo'Ding. @e m st get t e information ! at <#Gs are 'onne'ted to ' osen2> frame and ! at Dind of signaling <#Gs and "ase stations are sing "efore !e 'an'al' late t e "lo'Ding. %lso t e Dno!ledge of t e possi"le linD management+ N1 and pilot

"it timeslot in ,<MPC> (2>) frames is reE ired.

%6amp4e 19

,&A, site 'onfig ration 3O3O3 (taDes 9H2K1 timeslots from ,<MPC> for traffi'timeslots)

1 D"it/s signaling for "ot =>7;?A and <#G;?As (taDes 9O1 s "timeslots K3 timeslotsfrom ,<MPC> for signaling)

m"er of a'ti$e ,AP#; radio timeslots at a time 4O4O3 K 11 (< ese are estimated$al es "ased e.g. sim lations in 'ertain type of area).

>a im m siLe of t e ,&%P

K32 <imeslots linD management timeslot 8 pilot "it timeslots 8 <#G traffi' 8 ;ignalingtimeslots

K32 <;s 1<; 1<; 1 <; 3<; K : times4ots

*o! m ' "lo'Ding is t is 'a singQ

,a' ,AP#; radio timeslot taDes 1 master s "timeslot from t e fi ed JpoolJ and 4 sla$es "timeslots (K1 timeslot) from t e ,&%P. < e pro"a"ility to se t ese 4 sla$e timeslotsis p.

;o+ !e a$e 11 traffi' ' annels 'ompeting from 9 ( 4D"it/s) timeslots from t e ,&%P.

et t e ,&%P sla$e ' annel sage per'ent of t ese 'ompeting timeslots "e 50 R (!it>C;89 on a$erage 29. D"ps).

@e 'an 'al' late t e o$erflo! ("lo'Ding) of t e ,&%P !it t e "inomial distri" tion

%"is o$erflo! ("lo'Ding) K 18 inomdist (pool+ n m"er of radio timeslots+ sage per'ent

?n t is 'ase:

%"is o$erflo! ("lo'Ding) K 18 C m lati$e inomdist(9<;+ 11<;+ 50 R) K 0.005 593 5 K0.5 R

?f t e %"is o$erflo! ("lo'Ding) is allo!ed to "e 2R o! many radio timeslots 'an t ere "e:

2R K 18 C m lati$e inomdist(9<;+ <;+ 50 R)

K 12 <imeslots





1 %%E %3

1 %%E %2

1 %%E %1

1 %%E4%%

' 1% 11 12 13 1 1! 1" 1# 1& 1' 2% 21 22 23 2

EGPRS tim es lots

p r o

b a

b i l i t y o

f p o o

l o v e r f l o w

3%5 &%60p, u,a7e!%5 &%60p, u,a7e#%5 &%60p, u,a7e'%5 &%60p, u,a7e1%%5 &%60p, 8, tati.9!%5 &%60p, u,a7e: ; u y -ynami.

-ig$re 4 3+3+3 configuration with the different channel usage %s./2/.

?f !e !o ld reser$e 11 fi ed ,AP#; ' annels !e !o ld reE ire ( m"er of <C*sK9H K 2 <C*s) K 1 D <C*sO 4D Pool siLeO 4D linD6pilot "it timeslots(2 timeslots arefor linD management and pilot "its ( s ally timeslots 0 and 31))O1 D CF ;?A O 1 D<#G ;?As K 2O11H4O2H4O1O9H1 s "timeslots K 33.5 timeslots ,<MPC>.

?f !e allo! $ery small pool o$erflo! ("lo'Ding) (0.5 R) !e 'an fit t is traffi' into one,<MPC>.

?f yo try g arantee >C;89 a''ess to net!orD !it e$ery air8timeslots yo d need p to 3 2> lines for 3O3O3 'onfig ration





Fi ed %"is (1 D)K n m"er of fi ed 1 D s "timeslots O n m"er of 1 D sla$e s "timeslotsO n m"er of 1 D signaling s "timeslots O linD6pilot "it s "timeslots

K 9 <#G H ' s "<; O (9<#G H ' 83' )H4s "<; O 3H4s "<; O 3H2H4s "<;K 2 O ( 283)H4O12O24K 2O2 O12O24K3 4;(<+ 6 1-7subtimes4otsK3 4/4;:- 6 -+7times4otsK9 / 32;( 6 2$ frames

o! t at !e se ,&%P and allo! $ery small pool o$erflo! ("lo'Ding) !e 'an sa$em ' transmission 'apa'ity. ?n t is e ample sing t e dynami' pool $ers s fi ed %"issa$es s p to R of transmission 'apa'ityS

ED/( (oo Si<e 8TS9 ' ' ' ' ' ' ' ' ' ' ' ' ' 'G(RS .*anne uti i<ation %! %! %! %! %! %! %! %! %! %! %! %! %! %!no EG(RS ra-io time,ot, ' 1% 11 12 13 1 1! 1" 1# 1& 1' 2% 21 22ED/( o=er;o) pro0a0iity %%%5 %1%5 %!'5 1'35 "15 &'&5 1!%'5 22#25 31!5 %#35 !%%%5 !&&15 ""&25 #3&35$in ,a=in7, in tr .apa.ity %5 3235 "2!5 '%'5 11#"5 12'5 1""#5 1&'25 21%!5 23%&5 2!%%5 2"&35 %2&!#1 3%235$a> ,a=in7, in tr .apa.ity """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5 """#5$a> re?uire- tr .apa.ity 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$ 3 > 2$

Table 1 Transmission savings compared to fixed Abis with different pool overflow(bloc ing! values (example ".!

• ,&%P ;iLe 8 siLe of t e ,&%P in 4D timeslots• m"er of ,AP#; radio timeslots 8 n m"er of ,AP#; radio timeslots in se at atime.• >inim m sa$ings are 'al' lated ! at are t e minim m sa$ing ! en semi8dynami'%"is is sed !it 'ertain pool o$erflo! ("lo'Ding) 'ompared to fi ed %"is sol tion !it'ertain n m"er of ,AP#; timeslots 30<;/(n m"er of ,AP#; radio timeslots ,&%P;iLe).• >a im m sa$ings in t e transmission 'apa'ity ma im m sa$ings in t etransmission 'apa'ity ! en >C;89 is g aranteed for all of t e <C*s ((18(semi8dyn'apa/fi ed dyn 'ap))H100R)• >a im m reE ired transmission 'apa'ity ma im m reE ired transmission 'apa'ity! en >C;89 is g aranteed for all of t e <C*s.





%6amp4e 29

,&A, ;ite 'onfig rations 1O1 (2 ,&A, <#Gs) and 1O2O2 (5 ,&A, <#Gs) in t e ' ain.(taDes H2K14 timeslots from ,<MPC> for traffi' timeslots)

1 D"it/s signaling for "ot =>7;?As and <#G;?As (taDes 2(=>7;?A) O (<#G;?A)s "timeslots K3 timeslots from ,<MPC> for signaling)

2 timeslots are for linD management and pilot "its ( s ally timeslots 0 and 31)

,&A, <;T1: 1O1

4D<imeslotsK2H(2O0.25)O0.25K4. 5 timeslots

,&A, <;T2: 1O2O2

4D<imeslotsK5H(2O0.25)O0.25K 11.50 timeslots

>a im m siLe of t e ,&%P

K 32 <;s 2<;s (2O5)H2<;s 8 3<;sK 13 timeslots

*o! m ' "lo'Ding is t is 'a singQ

,&A, <;T1: 1O1

m"er of a'ti$e ,AP#; radio timeslots at a time 3O5 K (< ese are estimated $al es "ased e.g. sim lations in 'ertain type of area).

,&A, <;T2: 1O2O2

m"er of a'ti$e ,AP#; radio timeslots at a time 3O4O4 K 11 (< ese are estimated$al es "ased e.g. sim lations in 'ertain type of area).

;o+ !e a$e O11K19 traffi' ' annels 'ompeting from 13 ( 4D"it/s) timeslots of t e,&%P.

et t e sage per'ent of t ese 'ompeting timeslots "e 50 R (!it >C;89 t is 'orrespondsto a$erage t ro g p t of 29. D"ps).@e 'an 'al' late t e o$erflo! ("lo'Ding) of %"is !it t e "inomial distri" tion.%"is o$erflo! ("lo'Ding) K 18 inomdist (pool+ n m"er of radio timeslots+ sage per'ent

?n t is 'ase

%"is o$erflo! ("lo'Ding) K 18 inomdist(13<;+ 19<;+ 50 R) K 0.031 4 K 3.2 R







Timeslot allocation:

TS Bits used in timeslots

1 2 3 ! " #

% @in6 mana7ement

1 TRXSIG1"A BTS1 1 TRXSIG1"A BTS1 2 TRXSIG1"A BTS2 1 TRXSIG1"A BTS2 2

2 TRXSIG1"A BTS2 3 TRXSIG1"A BTS2 TRXSIG1"A BTS2 !

3 BCSIG1"A BTS1 BCSIG1"A BTS2

TCHBTS1 1 1 TCHBTS1 1 2 TCHBTS1 1 3 TCHBTS1 1

! TCHBTS1 1 ! TCHBTS1 1 " TCHBTS1 1 # TCHBTS1 1

" TCHBTS1 2 1 TCHBTS1 2 2 TCHBTS1 2 3 TCHBTS1 2

# TCHBTS1 2 ! TCHBTS1 2 " TCHBTS1 2 # TCHBTS1 2TCHBTS2 3 1 TCHBTS2 3 2 TCHBTS2 3 3 TCHBTS2 3

' TCHBTS2 3 ! TCHBTS2 3 " TCHBTS2 3 # TCHBTS2 3

1% TCHBTS2 1 TCHBTS2 2 TCHBTS2 3 TCHBTS2

11 TCHBTS2 ! TCHBTS2 " TCHBTS2 # TCHBTS2

12 TCHBTS2 ! 1 TCHBTS2 ! 2 TCHBTS2 ! 3 TCHBTS2 !

13 TCHBTS2 ! ! TCHBTS2 ! " TCHBTS2 ! # TCHBTS2 !

1 TCHBTS2 " 1 TCHBTS2 " 2 TCHBTS2 " 3 TCHBTS2 "

1! TCHBTS2 " ! TCHBTS2 " " TCHBTS2 " # TCHBTS2 "

1" TCHBTS2 # 1 TCHBTS2 # 2 TCHBTS2 # 3 TCHBTS2 #

1# TCHBTS2 # ! TCHBTS2 # " TCHBTS2 # # TCHBTS2 #1

1'

2%

21

22

23

2

2!

2"

2#

22'

3%

31 ( BTS1 ( BTS2

(OO@

ETRX

Si7na in7time, ot,

ETRX 1

ETRX 2

ETRX 3

ETRX !

ETRX "

ETRX #

)i5ure - 2> timeslot allo'ation template for , ample 2.

?f yo try g arantee >C;89 a''ess to net!orD !it e$ery air8timeslots yo d need p to2.25 2> (3 2>) lines for 1O1+1O2O2 'onfig ration.

Fi ed %"is (1 D)K n m"er of fi ed 1 D s "timeslots O n m"er of 1 D sla$e s "timeslotsO n m"er of 1 D signaling s "timeslots O linD6pilot "it s "timeslotsK <#G H ' s "<; O ( <#G H ' 85)H4s "<; O 3H4s "<; O 3H2H4s "<;K5 O(5 85)H4O12O24





K5 O204O12O24;2:- 6 1-7subtimes4otsK29 /4;'+ 6 -+7times4otsK 4 / 32;2.(12" 6 2$ frames

o! t at !e se ,&%P and allo! $ery small pool o$erflo! ("lo'Ding) !e 'an sa$e m 'transmission 'apa'ity. ?n t is e ample sing t e ,&%P $ers s fi ed %"is sa$es s pped5 R of transmission 'apa'ityS

ED/( (oo Si<e 8TS9 13 13 13 13 13 13 13 13 13 13 13 13G(RS .*anne utii<ation %! %! %! %! %! %! %! %! %! %! %! %!no EG(RS ra-io time,ot, 13 1 1! 1" 1# 1& 1' 2% 21 22 23 2ED/( o=er;o) pro0a0i ity %%15 %%!5 %215 %"5 1!5 31&5 !##5 '"5 1315 2%25 2#%"5$in ,a=in7, in tr .apa.ity % 3235 "2!5 '%'5 11#"5 12'5 1""#5 1&'25 21%!5 23%&5 2!%%5 2"&35$a> ,a=in7, in tr .apa.ity !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5 !"#"5$a> re?uire- tr .apa.ity 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$ 231 > 2$

Table 2 Transmission savings compared to fixed Abis with different pool overflow(bloc ing! values (example 2.!

2.+ Too4s

2.4.1 Planning <ools

< e 'apa'ity planning of transmission net!orD is planned !it <otem. efore t e semidynami' %"is+ #adio net!orD plan tells o! m ' 'apa'ity ea' <; reE ires. @ ensemi dynami' %"is pool is taDen into se and t e transmission 'apa'ity is 'al' lated+ t eamo nt of t e estimated pa'Det data also as to "e taDen into a''o nt. Fig re s o!ssimplified a'ti$ity diagram of t e Cell lar net!orD planning pro'ess.





Cu,tomer re?uirement,

TRS Net)or6Dimen,ionin7

TRS $e-ia ,e e.tion, Topo o7y .apa.ity ;or net)or6, po,,i0 e shared Dyn Abis

an- /C poo ,

Site Huntin7Te.* Site ,ur=ey

$FR in6 p annin70y N(S X: Totem:

Detai e- net)or6p annin7

Routin7 p an, ;or /C poo ,Plans for Shared Dyn Abis pools0y N(S 1%

Re?uire- .apa.ity

Tran,mi,,ionNet)or6

( an

-ig$re 7 Cell$lar net or; *lanning *rocess an semi Dynamic Abis mo ifications to it

2.4.2 >anagement <ools

< e 'ir' it manager is sed to modify dynami' %"is pool t ro g t e net!orD. ?t !orDs!it t e <r et. < e e isting (old) 'ell lar transmission eE ipment as to "e managed "yPC8manager (or ser$i'e terminal). < e traffi' manager is sed to manage %"is allo'ationin one <;. ?t s all also a$e dynami' %"is s pport. ;ee also ' apter 3.2.1 .

2." Transmission Topo4o5ies

%ll type of net!orDs are s pported (star+ ' ain+ loop+ mes ). < ere are some limitationst at a$e to "e taDen into a''o nt ! en net!orDs are planned.





FGC nits 'an maDe s mming from signals to one signal. =t er transmission nits a$ealso some limitations+ s ' as t e n m"er of signals t at t ey 'an s m see ' apter 3.4.2

< e FC 'ards a$e not 'ross 'onne'tion f n'tions. < e FC nits 'onne't all signals fromt e &8" s to t e interfa'e (2> or Fle " s) and t e nit is al!ays lo'ated to t e tail site.< s+ t e s mming f n'tion as to "e made on ne t * " site. *ere * " site does notsignify real * "+ all t e ot er FGC nits or ot er 'ell lar transmission nits 'an maDe t edynami' %"is f n'tion (C8type 'ross 'onne'tion)+ see ' apter 3.4.2 .

BSC BTS1 BTS2 BTS3

TS 1 !TS " 1%

TS11 1!

(oo

TS1" 3% TS1" 3% TS1" 3%C C B

B B B

BTS )it* C unit

-ig$re 8 -C)$nits Dynamic Abis

%6amp4e !HAIN net or7

?n Fig re 9 t ere is a "asi' ' ain net!orD. %ll <;s a$e a 'ross 'onne'tion f n'tion+ sot at it is after!ards easy to 'ontin e/"ran' dynami' %"is pool. <;s 'an also "e <;sof pre$io s generation.

BSCBTS BTS BTS

TS 1 !TS " 1%

TS11 1!

(oo

TS1" 3% TS1" 3% TS1" 3%C C C

B B B

-ig$re < Chain net or;





%6amp4e T o c3ain = 3ub site

?n Fig re 10+ t!o ne! <;s a$e "een added to t e "asi' ' ain net!orD. <;1 as toa$e at least <#7% or a ne!er transmission nit+ ! i' is a"le to s m t ree inp t signals.%ll ot er <;s 'o ld a$e any transmission nit.

BSCBTS BTS BTS

TS 1 3TS "

TS# '

(oo

TS1" 3% TS1" 3% TS1" 3%C C C

B B B

BTS BTS

C C

TS1" 3%

TS1" 3%

BB

TS 1% 12

TS 13 1!

2$

-ig$re 10 T o chains connecte by h$b





%6amp4e OO* net or7

Conditional 'onne'tions s all "e sed for t e loop net!orD. ?n Fig re 11 + & 2 is a loopmaster. ?t is also possi"le t at <#7% or FGC !orD as a loop master.

:<;3

&)2 :<;2

:<;1

G C type .ro,, .onne.tion

Dyn /0i, poo

B type

B typ e

:;C

-ig$re 11 (oo* net or;& normal sit$ation





% fail re sit ation. 7nits ne t to t e fa lty re'ogniLe t e fail re and ' ange 'onne'tionsto 8type and all ot er nits se C8type 'onne'tions.

:<;3

&)2:<;2

:<;1

@oop ma,ter

G C type .ro,, .onne.tion

Dyn /0i, poo

B type

B type

/I@URE

:;C

-ig$re 12 (oo* net or;& fail$re sit$ation an ne connections

2.- Transmission ine Interfaces

< e dynami' %"is doesn t 'reate additional p ysi'al reE irements to P&* line interfa'es+all Dind of P&* interfa'e types are possi"le. < e 'apa'ity of dynami' %"is $ers s lineinterfa'e as to "e taDen into a''o nt ! en defining a net!orD and a dynami' %"is pool(<1+ *&; ).

?t is also possi"le to se FGC ;<>81 ! en t e signal is dropped to 2> le$el.





( TRANS$ISSION I) S*%!I)I!ATION O) D#NA$I! ABIS

(.1 O er ie of Transmission Si5na4in5 ayers

< is ' apter des'ri"es management of transmission+ ! i' is related to dynami' %"is+and transmission p ysi'al interfa'e+ ! i' is related to t e dynami' %"is.

(.2 App4ication ayer Specification

3.2.1 &ynami' %"is <ransmission >anagement

3.2.1.1 Co8operation !it % to'onfig ration of FGC 7nits

#elease 3 of a to'onfig ration !ill s pport 'onfig ration of dynami' %"is Pool. @ enne! site is taDen in se+ t e % to'onfig ration 'onne'ts <#Gs to t e dynami' %"is pool(ref. Cell lar a to'onfig ration ;ystem f n'tional spe'ifi'ation)

FGC nits (! i' as <r et) s pport % to'onfig ration and 'ir' it manager.

3.2.1.2 Pool >anagement "y Cir' it >anager

< e 'ir' it manager is a net!orD topology 8oriented management appli'ation for 'ell lartransmission eE ipment and it !orDs part of % to'onfig ration 'on'ept. < e dynami'%"is s all "e a"le to manage "y 'ir' it manager.

&ynami' %"is pools or 'ir' its are a "it different t an normal point to point 'onne'tions "et!een <C* and ;C. < e type of dynami' %"is pool is point to m lti8point. < e'ir' it manager s all a$e o!n 'ommands for s o!+ 'reate and edit dynami' %"is. ?ts all manage 'omplete pool from any point of pool.

3.2.1.3 Pool >anagement "y <; <raffi' >anager

?nstallation engineer ses traffi' manager to manage 'onne'tions of %"is <; allo'ation atsignal le$el (<C*+ <#G;?A+ =>7;?A ). <raffi' manager s all a$e o!n sele'tion tomanage &ynami' %"is pool and 'onne'tions. ?nstallation engineer s all a$e possi"le todefine ! i' timeslot is 'onne't permanently and ! i' timeslots are s ared and ! i'<#G s sed s ared timeslots.





3.2.1.4 Pool >anagement "y PC8manager

FGC manager maDes C8type 'onne'tions at D"it/s+ 1 D"its+ 32 D"it/s+ 4 D"it/s or n 4D"it/s. FGC manager manages one node and operates at 'onne'tions le$el. 7ser 'o ldnot s o!/maDe 'ir' its t ro g t e net!orD "y FGC manager.

3.2.1.5 Pool >anagement "y ;er$i'e <erminal

7ser 'o ld se ser$i'e terminal or ser$i'e terminal em lator ! en manages dynami'%"is pool in old 'ell lar transmission nits+ as & 2+ & 2+ et'.

?t is also possi"le to manage C8type 'onne'tions of FGC at 4D"it/s le$el "y sing t eser$i'e terminal (or ;< em lator). @ en it is !anted more a'' rate/ ig er le$el 'ross'onne'tions t en t e * ">an or &tr >an as to se. (* ">an and &tr >an aremanager soft!ares for FGC nits).

3.2.2 <esting of Pool after Commissioning and in 7se

?t is important t at dynami' %"is pool !ill "e tested after 'ommissioning. < ere !ill "e afe! different tests. <est after 'ommissioning !ill test t at ;C as 'onne'tions to t e<; t ro g t e pool (modified %"is loop test). < e test !ill "e made so t at ;C maDe%"is loop test for first and last timeslot in ,&%P+ also it !ill test permanent 'onne'tions(master ' annels) "y t e normal %"is test. >ore ad$an'ed test s all $erify t at e$ery<#Gs a$e 'onne'tions to t e ;C or operator 'o ld define <#G and timeslot ! i' isnder test. < is Jone timeslot/<#G testJ is possi"le to maDe ! en t e pool is in se.

%fter fa lty timeslot(s) as "een fo nd+ t is timeslot or t ese timeslots s o ld "esegregated "y sing N1 'ommands. 7ser man als a$e to a$e g ide and/or flo! ' artso! to find/"lo'D fa lty nit. < e ' apter 4.5 des'ri"es ;C s fa lt 'o nters ! i' elpsto find fa lty nit.

(.( Trunet Specification

< e dynami' %"is do not 'a se any ' anges to t e <r net spe'ifi'ations.

(.+ *3ysica4 Specification

3.4.1 %dditional P ysi'al #eE irements to ,1+ <1+ *&;

< e &ynami' %"is doesn t 'reate additional p ysi'al reE irements to line interfa'e.





3.4.2 C8type Cross'onne'tions

< e dynami' %"is f n'tion in transmission nits is C8type 'ross'onne'tion. < is feat reis s pported "y follo!ing transmission nits ?7>&+ & 2+ & 2+ <#7%(%8*) and FGCnits (not FC nits).

&igital s mming is made "y sing J% &8f n'tionJ in t e 'ross'onne'tion %;?C. <!o ormore lines are 'onne'ted to %;?C s % &8f n'tion as inp ts. = tline gi$es Js mJ of t eselines (free/no signal is 'ontin o s 1+ a'ti$e signal is 0). ;ee <a"le 3

? 1 ? 2 =7<

0 0 0

0 1 0

1 0 0

1 1 1

Table 3 Digital s$mming

DB2 an BI $D specia4 features re4ate to Dynamic Abis

% digital 'ommon ' annel (C8type 'onne'tion) 'an "e defined for any 32 D"it/s ' annel

DN2 specia4 features re4ate to Dynamic Abis

% digital 'ommon ' annel (C8type 'onne'tion) 'an "e defined for any 4 D"it/s or 32D"it/s ' annel. & 2 'o ld 'om"ine ma 4 in'oming signals to one signal (" s).

TR A > TR H units specia4 features re4ate to Dynamic Abis

% digital 'ommon ' annel (C8type 'onne'tion) 'an "e defined for any 4 D"it/s or 32D"it/s ' annel.

)?! @)! > units specia4 features re4ate to Dynamic Abis

% digital 'ommon ' annel (C8type 'onne'tion) 'an "e defined for any 4 D"it/s+ 32 D"it/sor 1 D"it/s ' annel. %ll FGC nits 'o ld 'om"ine ma . in'oming signals to one signal(" s). FC nits a$en t any 'ross 'onne'tion f n'tion+ so it 'an not maDe any C8type'onne'tions.





+ O,$ I) S*%!I)I!ATION O) D#NA$I! ABIS

+.1 O er ie

< e semi dynami' %"is approa' means t at t e normal signaling linDs (<#G;?A and=>7;?A) and %"is ' annel allo'ation for <C*s are allo'ated from t e %"is fi edly as

pre$io sly. < e %"is ' annel allo'ation for ,AP#; demand !ill "e made "y ;C on a'all "asis from t e transmission pool (,&%P).

=nly t e ne! 5 t generation <;s (&? =2+ (,)P7>%+ and (,)C%<;) are a"le to se

&ynami' %"is allo'ation.

=>7 6 nH<#G;?As

nH<C*

,&%P

,<PC>1

=>7 6nH<#G;?A

nH<C*

,&%P1

=>7 6 <#G;?A

nH<C*

,&%P2

,&%P 'an "e(sed "y <#Gsof ,<PC>1

;?A)% ?)A

1 D"it/s fi ed %"is traffi'

timeslots,AP#;dynami'%"is pool,<PC>2

O&$ an- TRXSi7n TS, o;one or more,ite8BC 9

i>e- y -e;ine-tra;;i. TS, o;one or more,ite8BC 9

O&$ an- TRXSi7n TS, o;one or more,ite8BC 9

i>e- y -e;ine-tra;;i. TS, o;

one or more,ite8BC 9ED/(1 .an0e u,e- 0y t*e,eTRX,

ED/(2 .an0e u,e- 0y t*e,eTRX,

-ig$re 13 Dynamic Abis *ool e9am*leFig re 13 des'ri"e t!o e amples of dynami' %"is allo'ation. ,<PC>1 as one dynami'%"is pool ,&%P. < e 'apa'ity of ,&%P 'an "e dynami'ally allo'ated for ,AP#; se of<#Gs defined to ,<PC>1.

,<PC>2 as t!o dynami' %"is pools+ ,&%P1 and ,&%P2. < e 'apa'ity of ,&%P1 'an "e dynami'ally allo'ated for ,AP#; se of <#Gs+ ! i' are defined to se ,&%P1. < e'apa'ity of ,&%P2 'an "e dynami'ally allo'ated for ,AP#; se of <#Gs+ ! i' aredefined to se ,&%P2. ?n t e <#G 'reation is defined+ ! i' ,&%P pool is sed.

< e master %"is ' annel is allo'ated from t e fi ed %"is traffi' timeslots. < eallo'ations from t e ,&%P to ,AP#; p rposes are andled "y in"and signaling in t emaster %"is ' annel.





+.2 Dynamic Abis *oo4 Han 4in5

< e follo!ing ' apters des'ri"e o! pools are andled at t e ;C =6>.

4.2.1 Creation of t e &ynami' %"is Pool

7ser 'reates t e ,&%P into t e %"is PC> timeslots. < e siLe of t e pool 'an "e 1 24<; s (,<;? and % ;?). ;e$eral pools 'an "e 'reated to t e same PC>. ?n t e 'reationt e ser m st also gi$e t e 'ontrolling PC7 nit. < e pool is 'reated as 'ontin o s "lo'Dof 4D timeslots. ;C reser$es t e 'ir' its so t at t ey 'an not "e sed to ot er p rposes

!it o t deleting t e pool first and maDes t e ne'essary ro tings.< e ;C ' e'Ds t at t e gi$en PC> is 'onne'ted to t e %"is and t e 'ir' its to "ereser$ed are free. ?f reser$ation of t e 'ir' its+ t e pdating of t e program "lo'D ! i'andles t e ,&%Ps+ pdating of t e #adio net!orD data"ase fails or t e PC7 nit doesnot e ist+ t e ;C gi$es an error indi'ation to t e ser and releases t e already reser$ed'ir' its.

4.2.2 >odifi'ation of t e &ynami' %"is Pool

< e ser 'an modify t e ,&%P "y adding timeslots to t e "eginning or to t e end of t e pool+ deleting timeslots from t e "eginning or from t e end of t e pool and ' anging t ePC7 nit 'ontrolling t e ,AP#; timeslots. < e ;C maDes t e ne'essary modifi'ationsand pdatings. ?f t e PC7 is ' anged+ t ere 'an "e no <#Gs atta' ed to t at pool !itAP#; ena"led on. ;C also pdates t e ne! pool information to t e <;s t at se t is

pool.

< e ;C ' e'Ds t at t e gi$en t e 'ir' its to "e reser$ed are free. ?f reser$ation of t e'ir' its+ pdating of t e #adio net!orD data"ase fails or t e pdating of t e 'ontrollingPC7 nits fails+ t e ;C gi$es an error indi'ation to t e ser and 'an'els t e alreadymade 'ir' it operations.

4.2.3 &eletion of t e &ynami' %"is Pool

< e ser deletes t e ,&%P !it t e pool id. < e ;C ' e'Ds t at t ere are no <#Gsatta' ed to t e pool !it t e AP#; ena"led on. < e ;C deletes t e pool and releases t e'ir' its from t e pool and pdates t e <;s t at sed t is pool.

?f t e releasing of t e pool 'ir' its fails+ t e pool is seen as deleted and t e ser as torelease/'lean t e pool 'ir' its man ally.





4.2.4 CF/ <;/<#G Creation

< e ,&%P is 'reated first. < e radio net!orD is planned. < e signalling linDs are 'reated( nless %"is a to'onfig ration is sed).

< e 'reation of t e CF+ <;+ po!er 'ontrol and ando$er parameters+ neig "o ring 'ellinformation+ CF ;@ pa'Dage andling and <; definition at t e >;C are andled as' rrently.

T3e creation of t3e TR?s an 4o5ica4 ra io c3anne4 confi5uration9 ?n t e <#G'reation t e ser 'an define ! et er or not t e &ynami' %"is is sed !it optional

parameter. ?f t e dynami' %"is is sed+ t e operator m st define t e pool to "e sed "yt e <#G. It must 4ocate on t3e same *!$ t3an TR?SI/ an fi6e traffic times4ots .&ynami' %"is sage 'an not "e modified later. ?f t e operator !ants to ' ange t e <#G ssage of &ynami' %"is+ t e <#G m st "e deleted and 'reated again.

?f 'reation of t e radio net!orD o"Ue't fails+ t e ;C ret rns an error 'ode. ?f t e&ynami' %"is is sed+ and gi$en pool does not e ist or it lo'ates on different PC>+! ere t e <#G signalling linD lo'ates+ t e ;C pre$ents <#G 'reation and ret rnsappropriate error 'ode.

+.( Abis Autoconfi5uration

< e % to'onfig ration pool+ dynami' %"is pool and radio net!orD o"Ue'ts m st "e'reated first.

< e installation engineer 'onne'ts 5 t generation <; (&? =2+ (,)C%<;+ (,)P7>%) tot e J et!orD8endJ 'onne'tion port and gi$es parameters reE ired for %"is% to'onfig ration. <; sends %"is % to'onfig ration reE est to t e ;C $ia %''essC annel. ;C maDes reE ired allo'ations from t e %C Pool to t e =6> and <#Gsignaling linDs and <#G s traffi' ' annels. ?f t e &ynami' %"is is sed+ t e ;C informst e <; of ! at timeslots it may se for ,AP#; p rposes (from ,&%P). < e ,&%P+<#G signaling linDs and <#G traffi' timeslots m st e ist on t e same PC>. ?f t e <#Gsof t e one <; are lo'ated in t e different PC>s+ t e PC7 t at 'ontrols t e dynami'

pools of t ese PC>s m st "e same. ?.e. one PC7 'an 'ontrol se$eral pools.

& ring % to'onfig ration start8 p s'enario+ t e <; informs ;C t at t is is% to'onfig ration start8 p and asDs ;C to e e' te <#G and %"is loop tests. ?f t edynami' %"is allo'ation is sed+ ;C e e' tes t e %"is loop test for e$ery ' annel of t edynami' %"is pools first and last timeslot. ?f t e dynami' %"is pool is already in se insome ot er <;s+ possi"le ongoing 'alls 'leared "efore t e test.

+.+ Abis oop Test

< e ser starts %"is loop test for some <#G. ?f t e <#G is sing &ynami' %"isallo'ation+ t e ser 'an (not ne'essary) also gi$e timeslot t at is going to "e tested (t is





!ay testing t e &ynami' %"is pool ' annels). < e timeslot m st "e on &ynami' %"is pool t e <#G is sing.

?f t e <#G ses permanent %"is allo'ation+ t e timeslot 'an not "e gi$en. ?f t e timeslotto "e tested already 'arries traffi' and 'alls 'an not "e anded o$er to ot er timeslots oft e pool+ t e testing 'an not "e done and ;C ret rns an error 'ode to t e operator.

+." Ra io Net or7 Reco ery

@ en t e system dete'ts t e PC> fa lt+ t e a'tions 'on'erning it are similar ! et er or

not t e <#G as dynami' or permanent %"is allo'ation. %ll <#Gs of t e PC> are "lo'Ded to t e 'all 'ontrol and t s no 'alls 'an "e made on t ose <#Gs. %t t e sametime dynami' %"is pool of t at PC> 'an not "e sed ( o !orDing <#Gs on t at PC>)and t s no dynami' %"is pool re'o$ery is reE ired. < e dynami' %"is does not 'a se' anges to t e general error 'ases+ as signal lost+ frame lost syn'. error et'. < ese areandled in t e same !ay as "efore dynami' %"is.

;C s all find "asi' error 'ases. ?t is possi"le t at one nit (or <;) 'o ld 'onf sedynami' %"is pool (one or more "its are 'onstant Lero/one). ;C s all a$e 'o nters forfailed 'alls to re'ogniLe fa lty timeslot+ ! at is load of pool (per 'ent)+ ! at is peaD loadof pool+ ! at is relation "et!een pa'Det 'alls and 'ir' it s!it' ed 'alls. < e ;C as

o!n 'o nters for e$ery <;.





" T% %!O$ I) S*%!I)I!ATION O) D#NA$I! ABIS

".1 Dynamic Abis *oo4 Han 4in5

< is ' apter des'ri"es t e dynami' %"is pool andling in t e ;C <ele'om point of$ie!.

5.1.1 Creation of dynami' %"is Pool

,AP#; &ynami' %"is Pool (,&%P) is 'reated as defined in 4.2.1 .

;C tele'om re'ei$es t e &ynami' %"is information+ in'l ding t e PC> <; s "elongingto t e ,&%P. Fig re 13 ,rror: #eferen'e so r'e not fo nd gi$es an e ample of ,<MPC>'onfig ration !it ,&%P.

Cir' it s!it' ed (C;) 'onne'tions and master %"is ' annel in ,AP#; (see ' apter 5.3.3 )are 'onne'ted to fi ed 1 D"it/s %"is ' annels. =nly additional %"is transmission neededfor ,AP#; is sing ,&%P.

@ en ,&%P is 'reated t e PC7 t at andles t e pool m st also "e defined. ;C tele'om

nts %"is PC> <; s and PC7 PC> <; s for t e ,&%P and maDes t e 'onne'tion "et!een ,<PC> and PC7PC>. ;C tele'om informs t e ,&%P 'onfig ration to t ePC7.

PC7 'an andle traffi' from se$eral %"is PC>s. ?n PC7 PC> t ere 'an "e se$eral,&%Ps. < ere are t!o PC7 PC>s per PC7. =ne ,&%P 'an not "e di$ided to separatePC7 PC>s.

< ere are no P&<C* related to an ,&%P <; s. < ere !ill "e no PC78framesyn' roniLation on t ose <; s. ,rror: #eferen'e so r'e not fo nd

PC7 nit 'an andle 25 <C*s. < ose <C*s are s!it' ed t ro g A;@ "y t!o PC>soffering 25 1 D"it/s <; s. @ en 'ertain amo nt of t e PC7 PC> transmission is sedfor t e ,&%P t e n m"er of ser$ed <C*s de'reases. ?f si 4 D"it/s <; are in ,&%P.Bo 'an a$e 24 1 D"it/s <C*s in si <; s. < e PC7 nit <C* 'apa'ity as de'reasedto (25 24) 232 <C*s.

5.1.2 ,&%P 7pgrade

,&%P pgrade is initiated "y =6>I i.e. siLe of ,&%P is in'reased.

PC> <; s "elonging to ,&%P are from 'onse' ti$e <; s. @ en ,&%P pgrade is

initiated ;C tele'om marDs t e pgraded <; as to "e in'l ded to ,&%P . PC7 PC><; is nted and t e ,&%P <; is s!it' ed to t e PC7 PC> after all t e 'onne'tionssing t e <; a$e "een dis'onne'ted.





5.1.3 ,&%P &o!ngrade

,&%P do!ngrade is initiated "y =6>I i.e. siLe of ,&%P is de'reased.

;C tele'om 'ommands PC7 to stop sing eit er t e first or last ,&%P <; . PC7 stopss' ed ling t e deleted ,&%P <; and a'Dno!ledges to ;C tele'om. ;C tele'omreleases t e s!it' .

".2 !ircuit S itc3e Ser ices

C; 'alls are andled as "efore. %"is 'apa'ity is allo'ated fi edly.





".( *ac7et S itc3e Ser ices

5.3.1 =$er$ie! of ;ignaling ayers

%P&

A>>/;>

C

# C

>%C

A;> #F A;> #F

1%"is

%"is #elay

7m>; :<;

3 %"is3%"is

%P&

1 %"is 1 "is

C #elay

:;CPC7

:;;AP

%"is

A>>/;>

C

:;;AP

1"is

A";A;)

# C>%C

>%CV

); );

F# F#

-ig$re 14 P"S signaling mo el

?n a AP#; system+ signaling messages 'an "e transmitted o$er %"is sing ordinary %P&<#G;?A ' annels " t also sing PC7 frames. AP#; signaling information data pa'Dets 'an

"e transmitted on <#G;?A ' annel (1 D"it/s %P&) and on P&<C*/P%CC* traffi'' annel (1 D"it/s PC7 frames+ a deri$ati$e of <#%7 frames). PC7 frames are modified<#%7 frames. < ey are sed for 'arrying # C/>%C frames (data and signaling) and someJin"andJ PC78 <; signaling "its in t e PC7 frame o$er ead.





5.3.2 AP#; < F

oDia s pports only 'oding s' emes C;81 and C;82 in standard AP#; ser$i'e. < ismeans t e master %"is ' annels (see ' apter 5.3.3 ) are only sed for AP#;. ,&%P is notsed "y AP#;. AP#; release 1 pro'ed res apply for AP#;.

5.3.3 ,AP#; < F

< e AP#; ## pro'ed res apply in ,AP#; also. < e differen'e 'omes from t e ,AP#;need for more t an 1 D"it/s %"is ' annels.

< e master %"is ' annel is al!ays linDed to a P&<C*. < e rest of t e needed %"istransmission is allo'ated from t e ,&%P in t e in t e 4D"it/s "lo'Ds. < at is told to <;

"y in"and signaling in master %"is ' annel PC7 frame !it e$ery # C "lo'D. ;o t ere!ill "e t!o ne! PC7 frame formats: one for master %"is ' annel and one for ,AP#;sla$e ' annel.

PC7 s' ed les t e se of P&<C*s s ared "y m ltiple >;s. < e PC7 m st in t e 'ase of,AP#; sing more 1 D"it/s %"is s' ed le also %"is s "8<; transmission t rns fromt e ,&%P. < e same ,&%P 1 D"it/s s "8<; 'an "e allo'ated to different P&<C* int e s ''eeding PC7 frames ( Fig re 15 ).

TS@ %

n O$USIG & n TRXSIG

ED/(

TCH1

TCH2

TCH3

ED/( TS@1

TCH 1 -atato $S1

$a,ter /0i,.*anne TCH 1

TCH 2 -ata

to $S2

$a,ter /0i,

.*anne TCH 2

TCH 1 -atato $S1

TCH 2 -ata

to $S3

ED/( TS@1

ED/( TS@2

TCH1 -atato $S1

TCH2 -ata

to $S2

TCH1 -atato $S1

TCH3 -ata

to $S!

TCH 2 -atato $S

$a,ter /0i,.*anne TCH 3

TCH 2 -atato $S!

rame n rame n41

ED/( TS@2





-ig$re 1+ %DAP sche $ling e9am*le

5.3.4 1 ;pe'ifi'ation

PC7 frame formats+ in"and signaling syn' roniLation and ot er 1 f n'tions aredes'ri"ed in AP#;/,AP#; %"is 1 ?nterfa'e ;pe'ifi'ation.

- S% !AS%S

Fixed CS with free allocated EGPRS mastersand free allocated EDAPs

,<MPC> 1 ,<MPC> 2 ,<MPC> 3 PC7 PC> 1 PC7 PC> 2

O$ ,TR? si5

K9

BTS1 TR?1

BTS1 TR?2

BTS1 TR?(

BTS2 TR?1

BTS2 TR?2

BTS2 TR?(

BTS+ TR?1

BTS+ TR?2

BTS+ TR?(

BTS+ TR?+

BTS+ TR?-

BTS+ TR?'

BTS+ TR?<

BTS+ TR?:

BTS+ TR?10

BTS' TR?1

BTS' TR?2

BTS' TR?(

BTS' TR?+

BTS' TR?"

BTS( TR?1

O$ ,TR? si5

BTS( TR?2

BTS+ TR?"

O$ ,TR? si5 O$ ,TR? si5

BTS+ TR?11

BTS+ TR?12

BTS' TR?-

BTS' TR?'

BTS' TR?<

BTS' TR?:

BTS' TR?10

$asterareaif+%/*RSmasterc3anne4s

area44ocate2frome0eryDS*

$asterareaif<%/*RSmasterc3anne4sarea44ocate2from e0eryDS*.

F r e e s p a ' e

f o r , & % P s .

> a y " e

t 0 i s a r e a ' a n a l s o

" e s e d

f o r

o r d i n a r y A P # ; m a s t e r ' 0 a n n e l s .

( F o r a d d i t i o n a l A

P # ; ' 0 a n n e l s

Q )

,<PC>1M,&%P1

,<PC>1M,&%P2,<PC>2M,&%P1

,<PC>3M,&%P1

-ig$re 1= Dynamic Abis config$ration e9am*le

Fig re 1 gi$es an e ample of t e dynami' %"is allo'ation at t e ,<PC>s andPC7PC>s. < e allo'ations of t e ,<PC>s for signaling+ <C* ' annels and ,&%P

pools 'an "e done man ally or "y % to'onfig ration.

=>7;?A and <#G;?As of <;s are defined fi edly in ,<MPC>1+ ,<PC>2 and,<PC>3. <C*s timeslots of <;s are defined fi edly.

,<PC>1M,&%P1 timeslots 'an "e allo'ated dynami'ally to ,AP#; se of <;1 <#Gs.< e siLe of t e ,<PC>1M,&%P1 is H 4D"it/s. ?t means t at t ere 'an "e sim ltaneo s,AP#; allo'ations at t e same time !it t e >C;82 to >C;89 'oding ('apa'ity of one

,AP#; <#G).,<PC>1M,&%P2 timeslots 'an "e allo'ated dynami'ally to ,AP#; se of <;2 and<;3 <#Gs. < e siLe of ,<PC>1M,&%P2 is 4H 4D"it/s. ?t means t at t ere 'an "e 4





sim ltaneo s ,AP#; allo'ations at t e same time !it t e >C;82 to >C;89 'oding('apa'ity of 4 timeslot from one ,AP#; <#G).

,<PC>2M,&%P1 timeslots 'an "e allo'ated dynami'ally to ,AP#; se of <;4 <#Gs.< e siLe of t e ,<PC>2M,&%P1 is 3H 4D"it/s. ?t means t at t ere 'an "e 3 sim ltaneo s,AP#; allo'ations at t e same time !it t e >C;82 to >C;89 'oding ('apa'ity of 3timeslots from one ,AP#; <#G or 1 timeslot from 3 ,AP#; <#G).

,<PC>3M,&%P1 timeslots 'an "e allo'ated dynami'ally to ,AP#; se of <; <#Gs.< e siLe of t e ,<PC>3M,&%P1 is H 4D"it/s. ?t means t at t ere 'an "e sim ltaneo s,AP#; allo'ations at t e same time !it t e >C;82 to >C;89 'oding ('apasity of 1

,AP#; <#G).

%t t e ,<PC>s t e ,AP#; master ' annels are reser$ed from t e <C* timeslots of<#Gs.

=ne PC7 'an andle t!o PC>s. PC7 PC>1 and PC7 PC>2 s o! o! t e ,AP#;traffi' is s ared "et!een PC7 PC>s and PC7 &;Ps. %t t e PC7 t e ,&%Ps areallo'ated starting from t e end of t e se'ond PC7MPC>. ,AP#; master ' annels arereser$ed from t e "eginning of t e first PC7 PC>. ;ee Fig re 1 .

' T%STIN/

'.1 Trace Too4s @Abis

< e %"is tra'e tools m st a$e ;;10 s pport for tra'ing =6>+ <ele'om and <#%7signaling.

?n t e pa'Det ser$i'es t e tool m st "e 'apa"le to tra'e t e &;P;?A from t e master %"is' annel and to tra'e t e traffi' also from all s " ' annels ! i' are related to master%"is ' annel.