AMDOCS_Optimization Guidelines for Accessibility v1

NSN Optimizatio Optimization n Guidelines for CS and PS KPIs CS and PS Accessibility

28th an! 2"#$

CS and PS Accessibility •

KPI Formula

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RRC Setup & Access Failures

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RAB Setup and Access Failures

Call Setup Success &ate 'CSS&( Call setup success Rate %CSSR covers all t'e steps from t'e initial RRC connection re(uest from t'e )* to t'e net+or,- t'rou.' t'e RRC setup p'ase and t'e RAB setup p'ase- and until user data is startin. to .et transferred/ 0For CS- t'e Call setup success rate CSSR is essentially 0 RRC Setup & Access Success  RAB Setup & Access Success

For PS Session setup success

0Poor CSSR could 2e a result of  0 Poor covera.e or dominance or interference issues in Radio

interface 0 Capacity issues in Radio or Iu2 interface 0 Confi.uration issues in 3B4S %parameters or 53

)efinition of Accessibility 'CSS&( )*

R8C

B4S

C8

RRC6 Connection Re(uest RRC Connection Setup p'ase Resource Reservation in R8C- B4S- 4ransmission

RRC6 RRC Connection Re(uest Setup RRC Connection Access p'ase R8C +aits reply from )*

RRC6 RRC Connection Completed RRC6 Initial 7irect 4ransfer cm service re(uest RA8AP6 Initial )* 9essa.e 7IR*C4 4RA8SF*R %Call Proceedin. RA8AP6 RAB Assi.nment Re(uest

RAB Connection Setup p'ase

Resource Reservation in R8C- B4S- 4ransmission

RRC6 Radio Bearer Set:up

Call Set: up Success Rate Call Set: up 4ime

RAB Connection Access p'ase R8C +aits reply from )*

RRC6 Radio Bearer Setup Complete 7IR*C4 4RA8SF*R %Alertin.

RA8AP6 RAB Assi.nment Response

7IR*C4 4RA8SF*R %Connect 7IR*C4 4RA8SF*R %Connect Ac,no+led.e

KPI +ormula CS Accessibility 0 KPI Formula 6 RRC Setup & Access Success  RAB

Setup & Access Success %R8C;2 ?==@ 1##  sum%9C;C8;CALL;A44S : 9C;C8;CALL;FAILS  94C;C8;CALL;A44S : 94C;C8;CALL;FAILS  *9*RD*8CE;CALL;A44S : *9*RD*8CE;CALL;FAILS : RRC;ACC;R*L;*9*RD*8CE : RRC;ACC;R*L;9;C8 : RRC;ACC;R*L;94;C8  C*LL;)P7A4*;S)CC;CS;CALL :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: sum%9C;C8;CALL;A44S  94C;C8;CALL;A44S  *9*RD*8CE;CALL;A44S : RRC;A44;R*P;9;C8 : RRC;A44;R*P;94;C8 : RRC;A44;R*P;*9*RD*8CE : RRC;ACC;R*L;*9*RD*8CE : RRC;ACC;R*L;9;C8 : RRC;ACC;R*L;94;C8 : RRC;C88;S4P;R*;*9*RD;CALLC*LL;)P7A4*;A44;CS;CALL  sum%RAB;ACC;C9P;CS;IC* :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: sum%RAB;S4P;A44;CS;IC*

KPI +ormula PS Accessibility 0 KPI Formula 6 RRC Setup & Access Success  RAB

Setup & Access Success %R8C;#@ to save radio resources for ot'er services/ C'ec, tilt of site/ Fine tune addition +indo+ and drop +indo+ siJetime to reduce S5 over'ead/ H/ C'ec, RRC *C mappin. +it' SRB 2it rates to >/$ ,2ps and 1>/H ,2ps/ G/ C'ec, 9aNBitRate7LPS8R4 and InitialBitRate7L/ 9aN 2itrate used s'ould not eNceed 1"M K2ps and initial 2it rate can 2e do+n.raded to M ,2ps/ Also 9inAllo+edBitRate7L s'ould 2e M K2ps/ M/ C'ec, 7ylo- 4B implementation for 2etter PS 8R4 2itrate optimiJation/ =/ C'ec, ot'er carrier load and 2alance t'e traffic if re(uired 2y 7RRC- Cell reselection criteria- AJimut' plannin. and also c'ec, compressed mode/ 1#/ Implement A9R 7irected retry feature/ 11/ C'ec, maN and min po+er of radio lin,/ 1aimum &adio 3in4 Po.er5 &6 Ser7ice Ptma&36 9inof% % cpic' po+er  cpic'torefra2offset SF;Adustment%ptNtotalmaN: ptNdpc'maN and PS 9 multi&ab5 5 Ptma&369in of %% cpic'po+er: cpic'refra2offsetSF;Adustment- %PtNtotalmaN: ptNdpc'maNptNa2smaN 1inimum &adio 3in4 Po.er5 9aN% %ptN;maN;RL  Pcran.e7L- % PtNmaN:PtNdpc'min for every service/

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8ote 6 Increase PA po+er if possi2le or Plan for anot'er carrier/

:ffects of CPIC; Po.er modification Less Po+er  Availa2le for traffic Increased soft 'andover over'ead 4oo muc' po+er 

&educed system capacity capacity

Late cell reselection 'andout 'andover  too late

8on: ideal traffic distri2ution

CPIC5 covera.e 'oles

&educed system co7era/ C'ec, S5 over'ead value- it s'ould 2e 2elo+ >/ C'ec, 8odeB 2e'avior- sometimes 'i.' num2er of B4S fails o2served if RRC setup fails/

$/ C'ec, 9aNBitRatePS8R4 and InitialBitRate/ 9aN 2itrate used s'ould not eNceed 1"M K2ps and

initial 2it rate can 2e do+n.raded to M ,2ps/ Also 9inAllo+edBitRate s'ould 2e M K2ps/