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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$a!0
decisionHa%gHnum
tsHpoerHcontro%Ha%%oed
tsHpHconHac6FTI>+G
tsHpHconHinter*a%FTI>+G
poHincHstepHsiepoHredHstepHsie
r%e*Hd%Hpc8 rea*e
r%e*Hd%Hpc8 ret
decisionH1Hd%Hr%e*Ha*Hp
%Hr%e*Hd%Hp
uHr%e*Hd%Hp
decisionH1Hn1
decisionH1Hp1
decisionH1Hn2
decisionH1Hp2
)on%in6 Poer -ontro% due to Jua%it'
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
decisionHa%gHnum
tsHpoerHcontro%Ha%%oed
tsHpHconHac6FTI>+G
tsHpHconHinter*a%FTI>+G
poHincHstepHsie
poHredHstepHsie
rua%Hd%Hpc8 rea*e
rua%Hd%Hpc8 ret
rua%Hd%Hpc8ua%Heigt
decisionH1Hd%Hrua%Ha*Hp
%Hrua%Hd%Hp
uHrua%Hd%Hp
decisionH1Hn3
decisionH1Hp3
decisionH1Hn4
decisionH1Hp4
Hua%
p%in6 Poer -ontro% due to ,e*e%
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
decisionHa%gHnum
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msHpoerHcontro%Ha%%oed
msHpHconHac6
msHpHconHinter*a%
poHincHstepHsie
poHredHstepHsie
r%e*Hu%Hpc8 rea*e
r%e*Hu%Hpc8 ret
decisionH1Hu%Hr%e*Ha*Hp
%Hr%e*Hu%Hp
uHr%e*Hu%Hp
decisionH1Hn1
decisionH1Hp1
decisionH1Hn2
decisionH1Hp2
p%in6 Poer -ontro% due to Jua%it'
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
decisionHa%gHnum
msHpoerHcontro%Ha%%oed
msHpHconHac6
msHpHconHinter*a%poHincHstepHsie
poHredHstepHsie
rua%Hu%Hpc8 rea*e
rua%Hu%Hpc8 ret
rua%Hu%Hpc8ua%Heigt
decisionH1Hu%Hrua%Ha*Hp
%Hrua%Hu%Hp
uHrua%Hu%Hp
decisionH1Hn3
decisionH1Hp3
decisionH1Hn4
decisionH1Hp4
Hua%
)ata and !opping Jua%it' Poer -ontro%
Pa#a&$t$#C*##$0tS$tt0%
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
Pa#a&$t$#C*##$0tS$tt0%
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
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
d'nHstepHad?
d'nHstepHad?Hfmpr
poHincHstepHsieHd%
poHincHstepHsieHu%
poHredHstepHsieHd%
poHredHstepHsieHu%
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Osci%%ation Pre*ention for S Poer -ontro%
Pa#a&$t$#C*##$0tS$tt0%
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
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
interHce%%Hando*erHa%%oed
Intrace%% !ando*er
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
intraHce%%Hando*erHa%%oed
oHac6 FTI>+G
opHcount
opHcountH timer
p%in6 Jua%it'
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
u%Hrua%HoHa%%oed
rua%Hu%Ho8 rea*e
rua%Hu%Ho8 ret
rua%Hu%Ho8ua%Heigt
rua%Hu%Ho8ua%HprHf%ag
rua%Hu%Ho8ua%Hmargin
rua%Hu%Ho8ad?Hua%Hmargin
decisionH1Hu%Hrua%Ha*H
%Hrua%Hu%H
uHrua%Hu%H
decisionH1Hn"
decisionH1Hp"
Hua%
p%in6 Interference
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
interferHoHa%%oed
r%e*Hu%Ho8 rea*e
r%e*Hu%Ho8 ret
r%e*Hu%Ho8ua%Hmargin
r%e*Hu%Ho8ad?Hua%Hmargin
decisionH1Hu%Hr%e*Ha*Hi
uHr%e*Hu%Hi
decisionH1Hn#
decisionH1Hp#
)on%in6 Jua%it'
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
d%Hrua%HoHa%%oed
rua%Hd%Ho8 rea*e
rua%Hd%Ho8 ret
rua%Hd%Ho8ua%Heigt
rua%Hd%Ho8ua%HprHf%ag
rua%Hd%Ho8
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ua%Hmargin
rua%Hd%Ho8ad?Hua%Hmargin
decisionH1Hd%Hrua%Ha*H
%Hrua%Hd%H
uHrua%Hd%H
decisionH1Hn"
decisionH1Hp"
Hua%
)on%in6 Interference
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
interferHoHa%%oed
r%e*Hd%Ho8 rea*e
r%e*Hd%Ho8 ret
r%e*Hd%Ho8ua%Hmargin
r%e*Hd%Ho8ad?Hua%Hmargin
decisionH1Hd%Hr%e*Ha*Hi
uHr%e*Hd%Hi
decisionH1Hn#
decisionH1Hp#
p%in6 ,e*e%
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
u%Hr%e*HoHa%%oed
r%e*Hu%Ho8 rea*e
r%e*Hu%Ho8 ret
decisionH1Hu%Hr%e*Ha*H
%Hr%e*Hu%H
uHr%e*Hu%HdeicionH1Hn5
decisionH1Hp5
)on%in6 ,e*e%
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
d%Hr%e*HoHa%%oed
r%e*Hd%Ho8 rea*e
r%e*Hd%Ho8 ret
decisionH1Hd%Hr%e*Ha*H
%Hr%e*Hd%H
uHr%e*Hd%H
decisionH1Hn5
decisionH1Hp5
)istance
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
msHdistanceHa%%oed
re%HtimHad*8 rea*e
re%HtimHad*8 ret
decisionH1HtimHad*Ha*Ha%g
msHmaHrange
decisionH1Hn&
decisionH1Hp&
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poorHinitia%Hassignment
timingHad*anceHperiodFTI>+G
)efine te inter*a% eteen timing ad*ance canges
Poer Budget
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
prHando*erHa%%o
edr%e*Hd%Ho8 rea*e
r%e*Hd%Ho8 ret
surroundHce%%8rea*e
decisionH1HpgtHr%e*Ha*H
decisionH1Hnce%%Hr%e*Ha*HHca%c
maHtHms Fser*ingce%%G
msHtHprHmaHdefFinterna% neigordefau%tG
msHtHprHmaHce%%Feterna% neigorG
useHneigorHpgtHrea*e
1
)ata and !opping Jua%it' !ando*er -ontro%
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
dataHua%Hf%ag
%Hrua%Hd%HHdata
%Hrua%Hu%HHdata
opHua%Hena%ed
%Hrua%Hd%HHopping
%Hrua%Hu%HHopping
(!! )%ltiband
u%tiand !ando*er
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
mHpreference
pase2Hc%assmar6Ha%%oed
ear%'Hc%assmar6Hsending
ear%'Hc%assmar6Hde%a'
interandHoHa%%oed
andHpreference
andHpreferenceHmode
mu%tiandHreporting
(!(! )iscellaneo%s-riteria 1
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
r%e*HminHdef 5 r%e*HminHdef Finterna% neigor defau%tG
r%e*HminHce%% 5 r%e*HminHce%% Feterna% neigorG
-riteria 2
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
oHmarginHdef 485
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eigoring -e%% Processing
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
nce%%Hpro 0
disuseHcntHrea*e 0
oHon%'HmaHpr 1
neigorH?ourna% 0
orseHneigorHo 0
A%ternati*e Processing of +ua% easurements
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
a%tHua%Hproc 0 0 Jua%it' Band nit
Broadcast -ontro% -anne% A%%ocation FBAG +einitia%iation
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
aHa%%oacHproc 1
issing +eport
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
missingHrpt 0 0 Eaiting for te actua% data
!ando*er Timer
Pa#a&$t$#C*##$0tS$tt0%
S*%%$!tS$tt0%
R$a!0
ando*erHrecongniedHperiod
ssmapHt#
,in6 )isconnection
Pa#a&$t$#C*##$0tS$tt0%
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
03/04/11 2(/33
!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)--!
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