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GSM OPTIMIZATION

HANDBOOK

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1. Introduction.........................................................................................................32. Support Arrangement..........................................................................................43. Optimisation Team Structure..............................................................................54. Bad Perfromance is! Bone diagram................................................................"5. Information Preparation......................................................................................#

". $enera% Optimisation Proceedure....................................................................... A%arm Ana%'sis....................................................................................................(&. Statistics Ana%'sis Procedure...........................................................................10(. )ri*e Test..........................................................................................................13

(.1. )ri*e Test +eminder..................................................................................13(.2. )ri*e Test ,og In*estigation -onsideration...............................................13

10. reuen' P%anning .........................................................................................1410.1. B--! and BSI- p%anning criteria............................................................1410.2. reuenc' Assignment -riteria................................................................1410.3. reuenc' +etune Procedure..................................................................15

11. Add eigor -riteria.....................................................................................15

12. !ig +ise Bui%ding -o*erage..........................................................................1"13. aimum S'stem -onfiguration.....................................................................1"14. !)P- Setting Temp%ate.................................................................................1&

14.1. T Poer and Poer -ontro%...................................................................1&14.2. !ando*er..................................................................................................2114.3. u%tiand..................................................................................................2314.4. isce%%aneous...........................................................................................23

15. Too%s A*ai%a%e................................................................................................251". Pro%em +oot -ause ......................................................................................2"

1".1. !ig S)--! B%oc6ing.............................................................................2"1".2. !ig T-! B%oc6ing...................................................................................2#

1".3. S)--! Access ai%ure +ate...................................................................2&1".4. !ando*er ai%ure 7 ,oss..........................................................................2(1".5. S- -onnection +ate ............................................................................301".". S)--! and T-! + ,oss.......................................................................311".#. Poer -ontro%...........................................................................................321".&. !ando*er Pro%em...................................................................................321".(. Oters.......................................................................................................33

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1. INTRODUCTION

Teamor68 9%isten to order:8 c'c%e time reduction and fo%%o procedure are critica%to e*er' successfu% optimisation.

Be%o is te optimisation f%o cart;

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o

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2. SUPPORT ARRANGEMENT

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Start optimisation and skilltransfer and acquisition

P>$ ArrangementOptimisation %o

Account Teamsupp%ies reuired

information

P>$ preparesIO+ATIO O+

OPTIISTIO

P>$ audits netor6in Bei?ing

P>$ deri*esoptimisation p%an

OMC Engineer arrives localoffice to setup data collection

platform

Contractor preparesoptimisation informationin Beijing

Engineers perform brief audit in

Beijing to understand REALsituation

E! discuss "it# account

teams to identif$ optimisationtargets%

ont%' performancemeeting to identif'optimisation targets.

Start optimisation

P>$ arri*es %oca%office to discuss te

optimisation p%an itAccount Team and

-ustomer

All engineers return to Beijing toderive plan

Best engineering arrangementarrives at local office

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3. OPTIMISATION TEAM STRUCTURE

@o unctionBSS -ontro%%er nderstand fu%%' on BTS maintenance8 BSS configuration

A%arm onitoring8 onitor dai%' a%arm

Statistics onitoring In*estigate pro%em from statistics

).B. 7 eature -ontro%%er

-ec6 dataase and monitor feature dep%o'ment process

)ri*e Test ,og In*estigator In*estigate pro%em from dri*e test %og

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Team ,eader

).B. 7 eature-ontro%%er

)ri*e Test ,ogIn*estigator

A%armonitoring

Statisticsonitoring

BSS-ontro%%er

OITO+I$ A-TIO

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4. BAD PERFROMANCE FISH BONE DIAGRAM

>amp%e of eac ma?or pro%ems;a. )ataase Setting C improper !OP- settings. eigor C rong eterna% neigorDs B--! or BSI- *a%ues8 missing

neigorc. -o*erage C ea68 ig%' o*er%apped8 improper antenna donti%t and

orientationd. >terna% Interference C microa*e8 repeater8 fau%t' a%arme. -a%cu%ation C incorrect statistics euationsf. -a%e -onnection C no/cross connectiong. Statistics Pegging and -o%%ection C SE pro%em on statistics pegging8 or

retrie*a%. -apacit' C %ac6 of T+-8 improper canne% configuration8 %ac6 of +S,8 T,

%in6si. reuenc' P%an C cocanne%8 ad?canne%8 improper BSI- p%anning

?. Softare C ug6. !ardare C rong ca%e connection8 fau%t' cominer and fi%ter8 P- %in6

don%. etor6 Topo%og' C ad site %ocation se%ection8 redundant site dep%o'edm. Signa%ing C Improper cause *a%ue and message seuencen. oi%e C fau%t' moi%e in term of signa%ing or freuenc' opping capai%it'o. )ocumentation C rong feature/parameter usage description

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reuenc'P%an

etor6Topo%og'

Signa%ing oi%e

Bad Performance

)ataaseSetting -o*erage

Softare !ardare-apacit'

>terna%Interference

eigor -a%cu%ationStatistics Peggingand +etrie*a%

-a%e-onnection

)ocumentation

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5. INFORMATION PREPARATION

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6. GENERAL OPTIMISATION PROCEEDURE

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)ata -o%%ection 7 -ec6,oca% Office etP%an

Information

)ata Preparation 7etP%an Information

-orrection

etor6 Audit from1. A%arm2. Statistics3. )ataase4. -ec6 customer statistics euations

1. Suggest Better )ataase Setting F-anne% +econfiguration8Standard !OP-8 B%oc6ing Timer 8 -ongestion +e%iefG

2. -apture >terna% Interference3. reuenc' +etune for ig IOI8 B>+ and T-!H+H,OSS4. Audit >terna% eigor5. Improper A+-;BSI- P%anning". $P+O- %oading#. +S, 7 T, sage

Statistics 7 )B. main%' ona. S)--! Access ai%ure. -S+c. )rop -a%%d. T-!H+H,osse. !OH,ossf. !OHai%ure' A+- retune8 neigorcange and co*erage

Hardware

Capacity

Database,Interference &Capacity

NetworkTopology

FP, Neighobr andCoverage

& da$

So%*e B%oc6ing ';

a. B--! Optimisation. eigor Optimisationc. Add +adiod. Site +econfiguratione. Add Sitef. Antenna +efinement

etor6 Topo%og' Pro%em

due to no a*ai%a%e A+- isfound ';a. Site +ep%acement. -o*erage Optimisationc. -apacit' )imensioning

T>S ,og 7 P. main%' ona. ndecoded B--!. issing eigorc. !O ai%ured. Incorrect >terna% eigore. Eea6 -o*eragef. !ig O*er%apping

g. use nondominant ser*er' A+- retune8 neigorcange and co*erage

1. !ardare i FS%eeping -e%%8 OOS T-8 OOS TS2. Pat Ba%ance Issue8 au%t' T- from T-!H+H,oss IssueG

3. $-, sift and freuent Pase ,oc6 ,oop fai%ure from A%arm

' da$s

' da$s

&' da$s

' da$s

' da$s

' da$s

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7. ALARM ANALYSIS

Be%o %ists some important a%arms tat e focus8

a. -ritica% and ma?or a%arm. A%arms affect *oice ua%it' %i6e SI8 SE8 +-)+8 )+I8 )+Ic. $-, affects !Od. ,in6 a%arms affect site a*ai%ai%it' and *oice ua%it'e. B, a%arm affects ac6no%edgement of OOS -I-

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8. STATISTICS ANALYSIS PROCEDURE

Stat!t"! T#$$ Da%#a&

B A ) $ O O )

P a g i n g / o + S ) - - ! A c c e

2 S - A s s i g n mF 2 A H + > J H

- O / / + e

S ) + , o

- i p 0 e r 2 o i %F T S 2 I 8 I 2

T - ! B % o c i

T - ! A s s i g n

- a % % S e t u p S

T - ! + , o

I n t e r B S S

I n t r a B S S

I n t r a c e % % !

! O , o s s +

) r o p - a % %

- a % % S u c e s

2 S - T - ! - o

irst%'8 e need to understand account teams and customer performanceeuation.

Pro%em Identification from Statistics! per carrier on H", e#ternal interference, channel interference, coverage

a. PAT!HBA,A-> for fau%t' ardare (Ever$ ) da$s*. IOI for eterna% interference and ad canne% assignment (Ever$ +a$*c. B>+ for eterna% interference and ad canne% assignment (Ever$ +a$*

d. T-!H+H,OSS for fau%t' ardare and ad canne% assignment (Ever$ +a$*e. -!AH+>JHAI,H+O,, for fau%t' ardare and B--! and S)--! co*eragefootprint difference (Ever$ +a$*

$! per cell on %sage

a. AKAI,AB,>HT-! and AKAI,AB,>HS)--! (Ever$ +a$*. BS+HBSSHATPT(Ever$ +a$*

g. -OH+>S>) L ISIH)>TA-!M for -I- %oc6ing (,eekl$*. ce%% itout an' statistics for OOS ce%% (Ever$ +a$*

! per cell on d%al band 'obile %sagea. AHA-->SSHBHB+HO)>HAI, (,eekl$**! per cell on loading

a. BSS $P+O- %oading mean #0N (,eekl$*

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. S- Processor ,oading and Suscrier (,eekl$*c. +S, T8 + ti%isation mean 25N (,eekl$*d. T, T8 + ti%isation mean 20N (,eekl$*e. Pages per second (,eekl$*f. A,,O-HS)--!8 A,,O-HS)--!HAI, 8OHA--HP+O- re%ationsip (,eekl$*

g. !O per ca%% (,eekl$*+! per cell on paginga. P-!HPA$>HJH)IS-A+) (,eekl$*

! per cell for -CCH and -.IC planning

a. IKH>STH-AS>H+A-! and BA)H!OH+>HS (,eekl$*/! per cell inter0-.. H1 'onitoring

a. OTHIT>+HBSSHSHAI, OTHIT>+HBSSHSH,OST !PHS-H+>JHAI, Fnot inc%ude %oc6ingG (,eekl$*

. OTHIT>+HBSSHSHATPT !OHS-H+>JHAI, !OHS-H+>JHO(,eekl$*

-elow all are daily task23! eval%ate target

a. ca%cu%ate s'stem tota% ca%%8 tota% %oss8 o %oss8 rf %oss8 drop ca%%N. ca%cu%ate o man' tota% %oss reduction is reuired to acie*e te goa%c. do FG again for oter statistics

4! select worst cells and -.Csd. pic6 orst 20 ce%%s and orst 5 BS-s

! per cell on TCH 5ssign'enta. -OH+>JHTOHS-. AH+>JH+OHS-8 -OH+>S>) L ISIH)>TA-!M8 if-OH+>S>) is ig8 S- procedure is reuired.c. AH-)HTOHSHB,)8 AH-)HTOHSd. AHAI,H+OHS8 AH-OP,>T>HTOHS- Fsame as TOTA,H-A,,G

$! per cell on H1 Ca%sea. OTH!OH-AS>

! per cell on H1 Fail%rea. OTHIT+AHBSSH!OHAI, - OTHIT>+HBSSH!OHAI,8IHIT+AHBSSH!OHAI, and IHIT>+HBSSHSHOHS>IQ> for o fai%ues

(! per cell on TCH67F681.., .D67F681.., H1 8ossa. T-!H+H,OSS8 OTHIT+AHBSSH!OH+>J8 OTHIT+AHBSSH!OHATPT8

OTHIT>+HBSSH!OH+>J8 OTHIT>+HBSSH!OHATPT. S)H+H,OSS and !OH,OSS re%ationsip on ce%% co*eragec. OTHIT>+HBSSH!OH,OSTS8 OTHIT+AHBSSH!OH,OSTS8

OTHIT+AH->,,H!OH,OSTS

or ardare fi8 it usua%%' ta6es 3 da's to fi8 ence e suggest to re*ie tose statistics e*er'3 da's. or s'stem %oading and usage8 e i%% *isit tem once in a ee6.Eee6%' and e*er' 3 da's statistics sou%d e re*ieed en tat correcti*e action is done.

S'$"a( R$)*$!tFor growth planning per cell on blocked call set%p, e can useA,,O-HT-!HAI, C!OHAI,HOH+>SO+->SHIT+AHBSS !OHAI,HOH+>SO+->SHIT>+HBSS !OHAI,HOH+>SO+->SHIT+AH->,, to estimate epanded netor6 tota% ca%%s.

For coverage analysis and i'prove ).C connection rate8 e can use per ,A-A-->SSHP>+H+A-! C PA$I$H+>SPOS>. )ifference te%%s us o man' no page reponses.

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+. DRI,E TEST

3!! Drive Test 7e'inder

i. prepare ce%% definition fi%eii. 2mins per ca%%iii. 1015mins per %og fi%ei*. force to appropriate and F$S on%'8 )-S on%' or )ua%G*. mar6 encmar6 route per %og fi%e in map*i. mar6 on maps aout FaG drop ca%% FG ea6 co*erage FcG %ot of rua%it' FdG

ad co*erage*ii. fi%% in dri*e test pro%em seet

3!$! Drive Test 8og Investigation Consideration

$enera% T>S ,og In*estigation -oncern1. cec6 undecoded B--! C tis affects + %oss and creates %og of ping pong

ando*er2. decoded neigor ut no ando*er is attempted C due to missing neigor or

incorrect eterna% neigor pat3. focus on drop ca%% and rua% greater tan 4 for nonopping8 5 for opping for

at %east 4 seconds4. %oo6 for ando*er fai%ure C in*estigation target ce%% assigned A+-/A from

ASSI$>T -OA) and !A)OK>+ -OA)5. mar6 don ea6 co*erage area8 no dominant ser*er8 sa' %ess tan C&5dBm". mar6 don ig%' o*er%apped area

Besides8 e carefu% tat en 'ou see a decoded ce%%8 tat ce%% is not definite%' aneigor of ser*ing8 it can e due to ser*ing ce%% a*ing a neigor ic assame B--! as decoded ce%%.

ote; FaG ocus on ne site dataaseFG )ue to --B8 no S! can e dep%o'edFcG )edicated A+-/A is different from B--!FdG After Assignment and !ando*er8 te ce%% I) ma' not e updated 'etdue to serious rua%it' at ),.

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1-. FREUENY PLANNING

4!! -CCH and -.IC planning criteria

a. -e%%s a*e same B--! and BSI- tat increases T>S %og re*ie

trou%esome.. ear' ce%%s a*e same B--!;BSI- it A+-;BSI-.c. ear' ce%%s a*e ad?acent B--! it A+- and same BSI-.

4!$! Fre9%ency 5ssign'ent Criteria

onopping -ase

!opping -ase for nonB--!

B--! in opping case is same as te nonopping case.

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ser*ing ce%%

ser*ing ce%% canDt e co or ad?caanne%

cocanne%ad?acentcanne%

ad?acentcanne%

cocanne%

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4!! Fre9%ency 7et%ne Proced%re

reuencies can e grouped into 5 t'pes8 te' are;a. same site co and ad?canne% to B--!. ad?acent site co and ad?canne% to B--!

c. ad?acent site cocanne% to A+-d. same site cocanne% to A+-e. same site ad?canne% to A+-f. ad?acent site ad?canne% to A+-g. oters A+-

Priorit' of A+- retune is from g. to e. for fi and BB!8 from g. to d. for S!. Ifno a*ai%a%e A+- can e found8 site p%anning need to e re*ieed.Besides8 4006 separation is reuired for --B.5&8 #0 sou%dnDt e used for B--!.-e%% generates , interference on canne% 50 and 5".

11. ADD NEIGHBOR CRITERIA

In genera%8 ,OS and 2nd+ound Interferer i%% e added as neigorR oe*er8 for3rd+ound8 tis is *er' netor6 dependant. fie%d 6no%edge is reuired to ma6ete decision.

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ser*ing ce%% ,OS interferer 2nd+oundInterferer

3rd+oundInterferer

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12. HIGH RISE BUILDING CO,ERAGE

Introduce ig rise ui%ding co*erage must ma6e sure to a*e good streetco*erage.

!ig +ise Bui%ding C pro*ide ig %e*e% F%i6e%' ao*e &tf%oorG ig rise ui%dingco*erageacro C pro*ide %o f%oors and street %e*e% co*erageicro C pro*ide street %e*e% and indoor co*erage

13. MA/IMUM SYSTEM CONFIGURATION

It is important to understand o s'stem gros from pase to pase. It can edescried in 3 pases.

Pase 1; On%' macro %a'er8 antenna %ocated at toer top it sma%% donti%t.Antenna uses %arge *ertica% eamidt.

Pase 2; Start to introduce micro %a'er8 and increase macro ce%% donti%t and%oer macro ce%% eigt of macro antenna.

Pase 3; Introduce ig rise ui%ding co*erage to office ui%ding and ote%. Beforedep%o'ing tis 6ind of co*erage8 street %e*e% co*erage ST e strong enoug

F%i6e%' more tan C#5dBmG to protect interference from ig rise ui%dingco*erage.

or a mature netor6 ic its s'stem r%e*e% as reac a*erage C#5dBm8 it istime for us to dep%o' S! to epand s'stem capacit'.

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!ig +ise Bui%ding

acro

icro

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14. HDPC SETTING TEMPLATE

(!! T: Power and Power Control

T PoerPa#a&$t$#

C*##$0tS$tt0%

S*%%$!tS$tt0%

R$a!0

maHtHms

maHtHts

)on%in6 Poer -ontro% due to ,e*e%

Pa#a&$t$#C*##$0tS$tt0%

S*%%$!tS$tt0%

R$a!0

decisionHa%gHnum

tsHpoerHcontro%Ha%%oed

tsHpHconHac6FTI>+G

tsHpHconHinter*a%FTI>+G

poHincHstepHsiepoHredHstepHsie

r%e*Hd%Hpc8 rea*e

r%e*Hd%Hpc8 ret

decisionH1Hd%Hr%e*Ha*Hp

%Hr%e*Hd%Hp

uHr%e*Hd%Hp

decisionH1Hn1

decisionH1Hp1

decisionH1Hn2

decisionH1Hp2

)on%in6 Poer -ontro% due to Jua%it'


S*%%$!tS$tt0%

R$a!0

decisionHa%gHnum

tsHpoerHcontro%Ha%%oed

tsHpHconHac6FTI>+G

tsHpHconHinter*a%FTI>+G

poHincHstepHsie

poHredHstepHsie

rua%Hd%Hpc8 rea*e

rua%Hd%Hpc8 ret

rua%Hd%Hpc8ua%Heigt

decisionH1Hd%Hrua%Ha*Hp

%Hrua%Hd%Hp

uHrua%Hd%Hp

decisionH1Hn3

decisionH1Hp3

decisionH1Hn4

decisionH1Hp4

Hua%

p%in6 Poer -ontro% due to ,e*e%


S*%%$!tS$tt0%

R$a!0

decisionHa%gHnum

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msHpoerHcontro%Ha%%oed

msHpHconHac6

msHpHconHinter*a%

poHincHstepHsie

poHredHstepHsie

r%e*Hu%Hpc8 rea*e

r%e*Hu%Hpc8 ret

decisionH1Hu%Hr%e*Ha*Hp

%Hr%e*Hu%Hp

uHr%e*Hu%Hp

decisionH1Hn1

decisionH1Hp1

decisionH1Hn2

decisionH1Hp2

p%in6 Poer -ontro% due to Jua%it'


S*%%$!tS$tt0%

R$a!0

decisionHa%gHnum

msHpoerHcontro%Ha%%oed

msHpHconHac6

msHpHconHinter*a%poHincHstepHsie

poHredHstepHsie

rua%Hu%Hpc8 rea*e

rua%Hu%Hpc8 ret

rua%Hu%Hpc8ua%Heigt

decisionH1Hu%Hrua%Ha*Hp

%Hrua%Hu%Hp

uHrua%Hu%Hp

decisionH1Hn3

decisionH1Hp3

decisionH1Hn4

decisionH1Hp4

Hua%

)ata and !opping Jua%it' Poer -ontro%


S*%%$!tS$tt0%

R$a!0

dataHua%Hf%ag

%Hrua%Hd%HpHdata

%Hrua%Hu%HpHdata

opHua%Hena%ed

%Hrua%Hd%HpHopping

%Hrua%Hu%HpHopping

Standard S !O Poer8 S !o Poer ,e*e% ased on Pat ,oss -a%cu%ations F$S+3G


S*%%$!tS$tt0%

R$a!0

ando*erHpoerH%e*e%

useHderi*edHoHpoer 0 1 +educe S , poer and interference

Optimised Poer -ontro% F$S+4G


S*%%$!tS$tt0%

R$a!0

d'nHstepHad?

d'nHstepHad?Hfmpr

poHincHstepHsieHd%

poHincHstepHsieHu%

poHredHstepHsieHd%

poHredHstepHsieHu%

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Osci%%ation Pre*ention for S Poer -ontro%


S*%%$!tS$tt0%

R$a!0

msprHa%g

+apid S Poer )on

Pa#a&$t$#C*##$0t

S$tt0%

S*%%$!t

S$tt0%R$a!0

rpdHprHdon

rpdHperiod FTI>+G

rpdHtrigger

rpdHoffset

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(!$! HandoverInterce%% !ando*er


S*%%$!tS$tt0%

R$a!0

interHce%%Hando*erHa%%oed

Intrace%% !ando*er


S*%%$!tS$tt0%

R$a!0

intraHce%%Hando*erHa%%oed

oHac6 FTI>+G

opHcount

opHcountH timer

p%in6 Jua%it'


S*%%$!tS$tt0%

R$a!0

u%Hrua%HoHa%%oed

rua%Hu%Ho8 rea*e

rua%Hu%Ho8 ret

rua%Hu%Ho8ua%Heigt

rua%Hu%Ho8ua%HprHf%ag

rua%Hu%Ho8ua%Hmargin

rua%Hu%Ho8ad?Hua%Hmargin

decisionH1Hu%Hrua%Ha*H

%Hrua%Hu%H

uHrua%Hu%H

decisionH1Hn"

decisionH1Hp"

Hua%

p%in6 Interference


S*%%$!tS$tt0%

R$a!0

interferHoHa%%oed

r%e*Hu%Ho8 rea*e

r%e*Hu%Ho8 ret

r%e*Hu%Ho8ua%Hmargin

r%e*Hu%Ho8ad?Hua%Hmargin

decisionH1Hu%Hr%e*Ha*Hi

uHr%e*Hu%Hi

decisionH1Hn#

decisionH1Hp#

)on%in6 Jua%it'


S*%%$!tS$tt0%

R$a!0

d%Hrua%HoHa%%oed

rua%Hd%Ho8 rea*e

rua%Hd%Ho8 ret

rua%Hd%Ho8ua%Heigt

rua%Hd%Ho8ua%HprHf%ag

rua%Hd%Ho8

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ua%Hmargin

rua%Hd%Ho8ad?Hua%Hmargin

decisionH1Hd%Hrua%Ha*H

%Hrua%Hd%H

uHrua%Hd%H

decisionH1Hn"

decisionH1Hp"

Hua%

)on%in6 Interference


S*%%$!tS$tt0%

R$a!0

interferHoHa%%oed

r%e*Hd%Ho8 rea*e

r%e*Hd%Ho8 ret

r%e*Hd%Ho8ua%Hmargin

r%e*Hd%Ho8ad?Hua%Hmargin

decisionH1Hd%Hr%e*Ha*Hi

uHr%e*Hd%Hi

decisionH1Hn#

decisionH1Hp#

p%in6 ,e*e%


S*%%$!tS$tt0%

R$a!0

u%Hr%e*HoHa%%oed

r%e*Hu%Ho8 rea*e

r%e*Hu%Ho8 ret

decisionH1Hu%Hr%e*Ha*H

%Hr%e*Hu%H

uHr%e*Hu%HdeicionH1Hn5

decisionH1Hp5

)on%in6 ,e*e%


S*%%$!tS$tt0%

R$a!0

d%Hr%e*HoHa%%oed

r%e*Hd%Ho8 rea*e

r%e*Hd%Ho8 ret

decisionH1Hd%Hr%e*Ha*H

%Hr%e*Hd%H

uHr%e*Hd%H

decisionH1Hn5

decisionH1Hp5

)istance


S*%%$!tS$tt0%

R$a!0

msHdistanceHa%%oed

re%HtimHad*8 rea*e

re%HtimHad*8 ret

decisionH1HtimHad*Ha*Ha%g

msHmaHrange

decisionH1Hn&

decisionH1Hp&

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poorHinitia%Hassignment

timingHad*anceHperiodFTI>+G

)efine te inter*a% eteen timing ad*ance canges

Poer Budget


S*%%$!tS$tt0%

R$a!0

prHando*erHa%%o

edr%e*Hd%Ho8 rea*e

r%e*Hd%Ho8 ret

surroundHce%%8rea*e

decisionH1HpgtHr%e*Ha*H

decisionH1Hnce%%Hr%e*Ha*HHca%c

maHtHms Fser*ingce%%G

msHtHprHmaHdefFinterna% neigordefau%tG

msHtHprHmaHce%%Feterna% neigorG

useHneigorHpgtHrea*e

1

)ata and !opping Jua%it' !ando*er -ontro%


S*%%$!tS$tt0%

R$a!0

dataHua%Hf%ag

%Hrua%Hd%HHdata

%Hrua%Hu%HHdata

opHua%Hena%ed

%Hrua%Hd%HHopping

%Hrua%Hu%HHopping

(!! )%ltiband

u%tiand !ando*er


S*%%$!tS$tt0%

R$a!0

mHpreference

pase2Hc%assmar6Ha%%oed

ear%'Hc%assmar6Hsending

ear%'Hc%assmar6Hde%a'

interandHoHa%%oed

andHpreference

andHpreferenceHmode

mu%tiandHreporting

(!(! )iscellaneo%s-riteria 1


S*%%$!tS$tt0%

R$a!0

r%e*HminHdef 5 r%e*HminHdef Finterna% neigor defau%tG

r%e*HminHce%% 5 r%e*HminHce%% Feterna% neigorG

-riteria 2


S*%%$!tS$tt0%

R$a!0

oHmarginHdef 485

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eigoring -e%% Processing


S*%%$!tS$tt0%

R$a!0

nce%%Hpro 0

disuseHcntHrea*e 0

oHon%'HmaHpr 1

neigorH?ourna% 0

orseHneigorHo 0

A%ternati*e Processing of +ua% easurements


S*%%$!tS$tt0%

R$a!0

a%tHua%Hproc 0 0 Jua%it' Band nit

Broadcast -ontro% -anne% A%%ocation FBAG +einitia%iation


S*%%$!tS$tt0%

R$a!0

aHa%%oacHproc 1

issing +eport


S*%%$!tS$tt0%

R$a!0

missingHrpt 0 0 Eaiting for te actua% data

!ando*er Timer


S*%%$!tS$tt0%

R$a!0

ando*erHrecongniedHperiod

ssmapHt#

,in6 )isconnection


S*%%$!tS$tt0%

R$a!0

radioH%in6Htimeout

rrHt310(

%in6HaoutHtoHfai%

%in6Hfai%fu%%HprHrf%oss

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15. TOOLS A,AILABLE

-OP C >*ent -ounting Too%8 -a%% Trace Product8 $eneric ,oo6 p8 -e%% Ana%'sis Too% 2T>S and Safco1103

Ee StatisitcsetP%anBSS )ataase$>P

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16. PROBLEM ROOT CAUSE

+!! High .DCCH -locking

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!I$! S) B,O-I$

BS)S)

ind fau%t' TSfrom B>+ statsor cec6 a%arm

S)H>AH!O-)I$TI> -OK>+$>S to

T3101

a' due to Pantom +A-! and !O access urst8 cec6an' same A+- and BSI-Pat Ima%ance FS)--! not on B--! carrierG

-ec6 eigor B--! eingInterfered

issing eigor or incorrectneigor )B Pat8TOTA,H-A,,/A,,O-HT-! ma'e used

+e*ie OHA--HP+O- %i6e-HS>+KI->H+>JH-A,,8PA$>H+>SPOS>8,O-ATIOP)AT>

eigor -e%% Outage or on ce%%carrier outage F% carrier can a*e

ma 2 S)G

-o*erage !o%e,ot of %ocation

pdate=>)

Is outHIT+AHBSSH!OH+>T+ A)outHIT>+HBSSH!OH+>T+ A ,OT= >)

-ec6 neigor inHintraHBSSHoHreturnand inHinterHssHoHSeie8 if ig8-ec6 neigor fp

,A- BO+)>+ +>)>SI$ cec6 t3121

o T-! B,OI$8 >AB,>-!A>, +>-OI$PATIO

eigor t poerreduced

)

". -ec6 an' co%ocated or c%osemicroce%%8see eter trafficoff%oad is possi%e ' optismisig)B

#. If S) as no %oc6ing. a' reconfigurecanne%s or ena%e canne%reconfiguration feature

ind neigors ic as iginHintraHssHoHreturninHinterHssHoHseie tencec6 its fp

(. -o*erage o%e and improper )T 7orientation

10. Add radio to ce%% itoutadding ne cainet

&. cec6 ad?acent ce%%us'HtcHma8 if teus'HtcHma&configured T-!

Site reconfiguration

+educe o margin andena%e congestion re%ief

1. Pantom +A-!8 cec6 an'same A+- and BSI-

2. Pat Ba%ance8 B--! is O atS) carrier not O

3. ,in6 a%ance8 )B poer setting

4. !E Pro%em8 cec6 per carriercanHreHmsHfai% stats. or cec6a%arm

5. , Interference>terna% cec6 nigt %ine IOI!ig ce%% site!ig , Pat ,oss-o. or ad?. canne% interference

". >cessi*e TA

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+!(! Handover Fail%re & 8oss

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!ig !O ,oss / ai%ure

1. Poor ser*ing ce%% !)P-setting

2. Sort rrHt31034. Bad fp or eterna% Interference find Nof ,/), Jua%it' ' outHoHcause

5. !O ai%ure Incorrect >terna% eigor)ataase

#. !O fai%ure -ec6 target ce%% fp

3. S- Pro%em

". !ando*erHpoerH%e*e% is ma=

&. !E F)+-8 i%ter au%t (. +adio -a%iration

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+!*! ).C Connection 7ate

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,o S- -onnection +ate

1. Paging O*erf%o -ausing)iscard

2. -o*erage !o%e 3. S) + %oss

4. T-! B,O-I$ 5. Infreuent ,ocation pdate ". -iper ode ai%

&. S- -onnection +efused FT,-ongestedG

#. Proper setting onmsHtprHmaHcc andmsHtprHmaHdef

(. -a%% c%earing timerFt310(UUradioH%in6HtimeoutGcausing unc%ear ca%% generating ,interference

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+!+! .DCCH and TCH 7F 8oss

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!ig S) 7 T-! + ,OSS

a. eigorVs B--! Interfered. >terna% Interferencec. se guard andd. se APS freuenc'

2. !ardare FaGPat a%ance

idea is 10&R 120 Fserious , Pat ,ossG

R 100 Fserious ), Pat ,ossG FG+adio cec6 per carrier + %oss stats FcG eigor ce%% outage FdG $-, S!IT

eigor B%oc6ingcec6 FOTHIT+AHBSSH!OH+>JHOTHIT+AHBSSH!OHATT>PTG or FOTHIT>+HBSSH+>JHTOHS-HOTHT>T>+HBSSH!OHATT>PTG

and cec6 neigor s A,,O-HT-!HAI,

issing eigor8 usua%%' ' dri*e test or traceca%%

5. -o*erage o%e8 cec6 , Pat ,oss

#. S) + ,OSS

Inconsistent co*erageot enoug o*er%apping

o S)--! !O

&. Poor !)P- setting

(. Is outHintraHssHoHreturnand outHinterHssHoHreturn

a %ot=

>)

-ec6 neigor inHintraHssHoHreturn and

inHinterHssHoHseie if ig8 cec6 neigor s fp

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+!! Power Control

Sudden Poer )rop1. Incorrect ca%% c%earing timer setting2. au%t' ardare

S%o Poer -ontro%1. oHon%'HmaHpr is turned on2. Bad HpHconHac6 and HpHconHinter*a%

Poer -ontro% Eindo1. An' eterna% interference2. reuenc' p%anning tecniue3. Speed of poer don and up4. Street or indoor co*erage

+!/! Handover Proble'

Ping Pong !ando*er1. Bad radio ca%iration2. !ardare fau%t3. egati*e ando*er a%%oed4. Jua%it' ando*er itout turning on ua%Hpr f%ag5. >specia%%' air coming8 one of T8 + antenna is %oc6ed ' ui%ding

egati*e !ando*er1. eigor ?ourna%2. ua%HmarginHf%ag03. Bad radio ca%iration eteen B--! and nonB--!4. Turn on oHmagrinHrua% feature it defau%t *a%ue

o and )e%a' !ando*er

1. Inappriorate rea*e8 ret and 7 P *oting2. egati*e ando*er margin3. Improper setting on ando*erHrecognisedHperiod and ssmapHt#4. Improper !O a%goritm FT'pe 48 "G5. B%oc6ing

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+!3! 1thers

,o >r%ang sage1. Inappropriate -18 -2 and ando*er criteria

!ig +ua%

1. Ad?acent site interference2. Same site AIO assignment pro%em3. !ig interna% same site it rate4. >terna% interference %i6e cord%ess pone8 a%arm8 BTS ardare

ndecode BSI-1. $-, sift2. B--! interfered

Spurious -o*erage1. -o*erage optimiation2. TA contro%

i%%ed Paging1. Too man' access grant %oc6 reser*ed2. ,ocation area too %arge

o Paging After oi%e is on certain time period1. S- ,ocation pdate Timer U BSS ,ocation pdate Timer

o -a%% Setup1. ,A-I is different eteen BSS and S-2. -e%% BA+

Immediate Assignment +e?ect1. O S)--!

50001737 GSM Handbook

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