Rno Fi 191007
30
1 © Nokia Siemens Networks RNO / Wind 17/10/2007 - NMI Confidential RNO Wind Part I
description
RNO
Transcript of Rno Fi 191007
Confidential
Part I - Content
$o%%ution $o%%ution Identi&ication
Accessi'i%it( )own%ink and *"%ink Admission +ontro% a%orit,m not enou, radio or trans"ort resource. *-
S s(nc,roni#ation "ro'%ems and +onestion
Active Set Usage
Active Set Usage
M1013 (!ese co"nters are referred to cell addition and cell re#lace$ent % no target for deletion&
A'sol"te al"e $"st 'e considered not )ail"re Rate*
Active Set Usage
so"rce )ail"re WC5
- statistical data must stabilized over time.
- trafc distribution is not considered and a double-check to localize the event and DT eedback is required to understand i enomena is trafc driven or cell dependent
Active Set Usage
Major
- High number of failures for a dened out-going adjs (failure ADJS)
Minor
- high number of attem$ts in-comig and out-going for a dened $air %ith occasional failure ($ing-$ong)
Filtering action are required to nd bi-lateral corrispondence
- &er' lo% number of attem$t %ith failure (lo% used adjs)
- ero number of attem$t for declared adjs stabilied &alue (no adjs)
- high number of attem$ts %ith occsional failure for an out-going adjs (unbalanced ADJS)
!ither in-coming or out-going condition is sufcient
)ail"re A./S
)ail"re A./S
5c9No offset
"nce anl#zed the $%&'( the coverage plot taking care to the evaluation o intersite-distance( it is eas# to understand i target can be used.
) not onl# do*n tilt is possible or D!$$ +,D% obect 'aremeter cell to avoid the ailure during %/".
Do*n tilt must be careull# anl#zed.
) rom !c01o the cell can be recovered an individual o2set or ltering +,D% obect 'arameter can be introduced to ovourite it
)ail"re A./S % Individ"al Ncell Offset
time
, !,!H .
, !,!H /
"c2o
)ail"re A./S % )or'idding Neig!'o"r Cell
3ime
, !,!H .
, !,!H /
,!,!H0 is forbidden to a4ect the re$orting range as its 5ualit' is 5uite unstable6
+e$orti ng
+ange
AdjsDERR to orbid a cell rom reporting range calculation in some instances
"c2o
)ail"re WC5
Poll"tion9Interference
6ost o the Target ailure during the 7, or 7& event.
"nce anl#zed the !c01o( 58!$( the coverage plot taking care to the evaluation o intersite-distance( it is eas# to understand i the 9&!8 is intererered0'olluted
) not( t*o ')s allo* to separate the dominant contribute among the 7, and 7&.
$ela4ing the parameters an improvement should be achieved
3he follo%ing gi&es the number of attem$ts $er e&ent
+3 Ser&ices
7,(.) 8 M.99!.9 !"## ADD;+"<="S3 >? SH> F>+ +3 3+AFF!
7,(/) 8 M.99!./ !"## +",#; +"<="S3 >? SH> F>+ +3 3+AFF!
?+3 Ser&ices
7,(.) 8 M.99!/ !"## ADD; +"<="S3 >? SH> F>+ ?+3 3+AFF!
7,(/) 8 M.99!/@ !"## +",#;+"<="S3 >? SH> F>+ ?+3 3+AFF!
3he failure rate for all the $rocedure can be estimated as %ell
ADD(+",#); FA#;>?SH> ;F>+; 2 ADD(+",#);+"<;>?;SH>;F>+; B ADD(+",#); FA#;>?SH> ;F>+;
M.99!.C 2 M.99!./ B M.99!.C
M.99!0 2M.99!.. B M.99!0
M.99!09 2 M.99!/ B M.99!09
M.99!0 2 M.99!/E B M.99!0
M.99!0. 2 M.99!/@ B M.99!0.
)ail"re WC5 - 1A
.A
AdditionWindow
determines the relative threshold used b# the ;! to calculate the reporting range o event 7,. The threshold is either relative to the &')&/ !c01o measurement result o the best active set cell +<( or to the sum o active set measurement results +=><
AdditionTime denes the ?time- to-trigger? interval bet*een the cell entering the reporting range and the ;! sending the measurement report to the $1& *ith the 7, event
AdditionReportingInterval denes the period o time that the ;! *ait( i the $1& is unable to add 1cell to ,%( beore sending urther reports periodicall#( *ith interval AdditionReportingInterval ( until the 1cell moves out o reporting range( or $1& adds 1cell to ,%.
Measurement +e$ort
ActiveSetWeightingCoecient
)ail"re WC5 - 1C
"c2o
ReplacementReportingInterval
) the $1& is not able to replace the active cell *ith the monitored cell( the ;! continues reporting ater the initial report b# reverting to periodical measurement reporting. The parameter $eplacement $eporting )nterval determines the interval o periodical measurement reports *hen such reporting is triggered b# the event 7&.
ReplacementWindow
determines the margin b# *hich the &')&/ !c01o measurement result o the monitored cell +61e* must e4ceed the &')&/ !c01o measurement result o the an active set cell +6)n,% beore the ;! can send the event 7& triggered 6easurement $eport to the $1&: 61e* >@ 6)n,s A $eplacement9indo* 0 B
ReplacementTime Denes the period o time the monitored cell must continuousl# sta# *ithin the reporting range beore the ;! can send a 6easurement $eport to the $1& in order to replace an active set cell *ith the monitored cell +event 7&.
Measurement +e$ort
NO A./S
. anal6sis for t!e Ads
o4 "sed A./S
A./ Offset
)t is not difcult in live net*ork to nd some pair *orking *ith ver# lo*
For lo* used ,D% has to be intended and ,D% that has e* number o attemps in one da# +e.g =3
*ith occasional ailure.
The ,D% removal has to be considered as the last option( ater the qualit# has been monitored b# drive test result( considering the overall capabilit# o the target to be recovered +e.g. inter-site distance( po*er budget and other options are available or that area.
Un'alanced A./S
Un'alance A./S
5c9No offset
coverage #lot considering inter-
site distance e traffic
2es
,n high number o attempt could be an indication o a problem and even in case o the ailure is not associated an evaluation is required.
The ke# point is the inviduation o the attempt distribution( that in case are not ustied but partcualar populated area( coluld generate lot o signalling.
The attempts could be genarated b# 75 event ever the same ;! not counted in the 67<73.
The possibilit# to recover the ,D% is the avourite option and the do*n tilt careull# anal#zed considering the ailure associated.
No action
Un'alanced WC5
coverage #lot considering
reB"ired
,n high number o attempt could be an indication o a problem and even in case o the ailure is not associated an evaluation is required.
The ke# point is the inviduation o the attempt distribution( that in case are not ustied but partcular populated area( coluld generate lot o signalling.
The attempts could be genarated b# 75 event ever the same ;! not counted in the 67<73.
The possibilit# to have an intererence0pollution increase respect to the unbalanced ,D%.
The optimization should be perormed at 9&!8 level
The ') reported are the same o Failure 9&!8
Ping Pong
Ping-#ong
reB"ired
#oll"tion
)n this particular case the high number o attempt is concentrated in a pair
From , >> 5 and rom 5 >>, as in the picture
,s in the previous case could be an indication o a problem and even in case o the ailure is not associated an evaluation is required to avoid to use a lot signalling.
Ping Pong - )iltering
) am in the !"##;D!H sub-state
6easurement T#pe: )ntra-requenc# measurements $eporting events: .A: Event 1A triggered hen !"!#$ Ec%#o of the measured
cell enters &E reporting range for a dened period of time .1: Event 1 triggered hen !"#!$ E!%# of the measured cell
drops out of the &E reporting range for a dened period of time .!: Event 1! triggered hen !"#!$ E!%#* of the measured
cell enter in A+ by a dened margin for a dened period of time
S'stem nformation G
,pplied or averaging o periodical meas. reports
Poll"tion
Poll"ter .etection
3he best %a' to indi&iduate a ,olluter is the Dri&e 3est
A feedbacI can come from co&erage $lot +?, feedbacI and !ounters
A $olluter can be of di4erent t'$e:
.6 ,S! ,ollution
Too high reuse actor or the '%&. 1e* '%& plan is required
/6 D# ?oise raise
,D% signal strength out o usage *indo* +*ill be never utilized b# the ;!
, do*n tilt or po*er reduction is the solution evaluating all the side e2ects
06 Dominant site
, dominant site over-shooting the ,D becoming congested
PSC Poll"tion
A conrm for the $olluter of the rst t'$e can come from the counter
M.99!0E-C !"## S,"!F! !,!H "!2?> - !#ASS
,ollution !riteria:
3he M.99!0E-C gi&es an indication of "c2?o distribution &alue measured during e&ent .A 6 Ha&ing the distribution higl' unbalanced (normall' centered on class / 0 C) %e ha&e an indication of a $robable $roblem6 For eam$le unbalancing to%ards the scarce &aue of "c2?o but continuing to add cells to AS could gi&e an indication of $ollution
Poll"ted WC5
. Noise Raise
3he ?> ADJS and lo% used ADJS criteria before $resented can gi&e a conrm for a $ollution of this t'$e6
After the statistical data are stabilied maIing across-checI %ith the $ro&isioned ADJS ,lan the $robable $olluters are indi&iduated6
.o$inant site
Filtering the M.9.0 $airs for the recurrent target cell %ith associated occasional failure %e ha&e an estimation of the $robable $olluters
For the $olluters originating failures a do%n tilt is re5uired
,olluted !ell !riteria:
( )
3T_NRT _IN_ACT_SETHREE_CELLM1007C21T_RT _IN_ACT_SETHREE_CELLM1007C2
NRT N_ACT_SET_ ONE_CELL_IM1007C19RT N_ACT_SET_ ONE_CELL_IM1007C0
RNC_79BOverheadHandoverSo!
3T_NRT _IN_ACT_SETHREE_CELLM1007C21T_RT _IN_ACT_SETHREE_CELLM1007C2
NRT N_ACT_SET_ ONE_CELL_IM1007C19RT N_ACT_SET_ ONE_CELL_IM1007C0
RNC_79BOverheadHandoverSo!
Accessi'ilit6
Accessi'ilit6f #> accessibilit' ++! from:
C Accessibilit' Statistical !ounters
S$ecic counter for +esource monitoring can be e&aluated:
.6 ++!;!>??;S3,;FA#;A!2++!;!>??;S3,;FA#;all KK =#2D# !ell #oad L code allocation
/6 ++!;!>??;S3,;FA#;13S2 ++!;!>??;S3,;FA#;all KK !" usage
06 ++!;!>??;S3,;FA#;3+A?S2 ++!;!>??;S3,;FA#;all KK !A! rej or AA#/ setting u$ fail
C6 ++! S"3=, FA# D=" 3> =1 AA#/ 3+A?S 2 ++!;!>??;S3,;FA#;all KK AA#/ shortage
6 ++! !>?? S"3=, FA# D=" 3> +?3 A##> FA# 2 ++!;!>??;S3,;FA#;all KK ++M= o&erload
!ould be useful for congestion detection to not neglect the anal'sis of failure in access $hase %ith cause +AD>
RRC Accessi'ilit6
2es
$$& F,)8 ,&
) the condition triggered is $$&&"11%T'F,)8,& the po*er anal#sis is required either T4 or $4 and code availabilit#
) the thresholds are correctl# settled but the cell seems to be congested according to the class3 and classE permanence time a cross check on the e2ective trafc present is required.
%ome intererer can be discovered b# the drive test result.
"ther*ise an e4pansion must be considered
$$& Fail 5T%
$8 reection rom 5T% sending a 15,': $8 %etup Failure.
"ld counters 67<< are replaced b# the one created or 3GG' )ub
The most important cause or $1" included in is the lack o &!
9%' e4pansion or ne* site is required
I"' not Congested
RRC Accessi'ilit6 % AC Congestion
RRC Accessi'ilit6 % <S Congestion
CE AVE_AVAIL_ M51C!
CE AVE_AVAIL_ M51C!
E_DL AV"_USED_C M51C# BTS $ DL &'( CE )*$l$se+ '& Ra*$' A,e(a-e RNC_#3A ==
CE AVE_AVAIL_ M51C!
CE AVE_AVAIL_ M51C!
E_UL AV"_USED_C M51C. BTS $UL &'( CE )*$l$se+ '& Ra*$' A,e(a-e RNC_#31A ==
KPI (2) C5 Usage
RA< Accessi'ilit6
C D="33>
C D+*" 3"S3
!onsidering that after +A?A,: +ab Assignment +e5uest from !ore a double checI is
re5uested6
Due to D!H929 allocation more signicant are !S for A! and 13S fail cause and ,S for 3+A?S
after reconguration
,S ser&ices that can su4er more the follo%ing cases can be e&aluated:
!S
,S
.6 +A1 S"3=, FA#=+"S D=" 3> 13S
RA< Accessi'ilit6
_IN_RNCATA_#$_L'ALLO_(OR_ )M1002C310 _IN_RNCATA_32_L'ALLO_(OR_ )M1002C307
_IN_RNCATA_1#_L'ALLO_(OR_ )M1002C30"IN_RNCATA_&_L_ 'ALLO_(OR_ )M1002C303
L_IN_SRNCAC*+_3&$_'ALLO_,S_B)M1002C173L_IN_SRNCAC*+_320_'ALLO_,S_B)M1002C172
L_IN_SRNCAC*+_2"#_'ALLO_,S_B)M1002C171L_IN_SRNCAC*+_12&_'ALLO_,S_B)M1002C170
_IN_SRNCAC*+_#$_L'ALLO_,S_B)M1002C1#9 _IN_SRNCAC*+_32_L'ALLO_,S_B)M1002C1#&
_IN_SRNCAC*+_1#_L'ALLO_,S_B)M1002C1#7IN_SRNCAC*+_&_L_ 'ALLO_,S_B)M1002C1##
L_IN_SRNC NTERA_3&$_ 'ALLO_,S_I)M1002C1"7L_IN_SRNC NTERA_320_ 'ALLO_,S_I)M1002C1"#
L_IN_SRNC NTERA_2"#_ 'ALLO_,S_I)M1002C1""L_IN_SRNC NTERA_12&_ 'ALLO_,S_I)M1002C1"$
L_IN_SRNC NTERA_#$_'ALLO_,S_I)M1002C1"3L_IN_SRNC NTERA_32_'ALLO_,S_I)M1002C1"2
L_IN_SRNC NTERA_1#_'ALLO_,S_I)M1002C1"1 _IN_SRNC NTERA_&_L'ALLO_,S_I)M1002C1"0
+_TRANSIL_,S_BAC* RAB_ST,_(AM1001C111R_TRANSIL_,S_INETRAB_ST,_(AM1001C10# CAC!od-era!e(a./-reReervI-,S
_IN_RNCATA_#$_L'ALLO_(OR_ )M1002C310 _IN_RNCATA_32_L'ALLO_(OR_ )M1002C307
_IN_RNCATA_1#_L'ALLO_(OR_ )M1002C30"IN_RNCATA_&_L_ 'ALLO_(OR_ )M1002C303
L_IN_SRNCAC*+_3&$_'ALLO_,S_B)M1002C173L_IN_SRNCAC*+_320_'ALLO_,S_B)M1002C172
L_IN_SRNCAC*+_2"#_'ALLO_,S_B)M1002C171L_IN_SRNCAC*+_12&_'ALLO_,S_B)M1002C170
_IN_SRNCAC*+_#$_L'ALLO_,S_B)M1002C1#9 _IN_SRNCAC*+_32_L'ALLO_,S_B)M1002C1#&
_IN_SRNCAC*+_1#_L'ALLO_,S_B)M1002C1#7IN_SRNCAC*+_&_L_ 'ALLO_,S_B)M1002C1##
L_IN_SRNC NTERA_3&$_ 'ALLO_,S_I)M1002C1"7L_IN_SRNC NTERA_320_ 'ALLO_,S_I)M1002C1"#
L_IN_SRNC NTERA_2"#_ 'ALLO_,S_I)M1002C1""L_IN_SRNC NTERA_12&_ 'ALLO_,S_I)M1002C1"$
L_IN_SRNC NTERA_#$_'ALLO_,S_I)M1002C1"3L_IN_SRNC NTERA_32_'ALLO_,S_I)M1002C1"2
L_IN_SRNC NTERA_1#_'ALLO_,S_I)M1002C1"1 _IN_SRNC NTERA_&_L'ALLO_,S_I)M1002C1"0
+_TRANSIL_,S_BAC* RAB_ST,_(AM1001C111R_TRANSIL_,S_INETRAB_ST,_(AM1001C10# CAC!od-era!e(a./-reReervI-,S
+ ++
++ ++ ++ ++
++ ++
++ ++
++ ++
+ =
Part I - Content
$o%%ution $o%%ution Identi&ication
Accessi'i%it( )own%ink and *"%ink Admission +ontro% a%orit,m not enou, radio or trans"ort resource. *-
S s(nc,roni#ation "ro'%ems and +onestion
Active Set Usage
Active Set Usage
M1013 (!ese co"nters are referred to cell addition and cell re#lace$ent % no target for deletion&
A'sol"te al"e $"st 'e considered not )ail"re Rate*
Active Set Usage
so"rce )ail"re WC5
- statistical data must stabilized over time.
- trafc distribution is not considered and a double-check to localize the event and DT eedback is required to understand i enomena is trafc driven or cell dependent
Active Set Usage
Major
- High number of failures for a dened out-going adjs (failure ADJS)
Minor
- high number of attem$ts in-comig and out-going for a dened $air %ith occasional failure ($ing-$ong)
Filtering action are required to nd bi-lateral corrispondence
- &er' lo% number of attem$t %ith failure (lo% used adjs)
- ero number of attem$t for declared adjs stabilied &alue (no adjs)
- high number of attem$ts %ith occsional failure for an out-going adjs (unbalanced ADJS)
!ither in-coming or out-going condition is sufcient
)ail"re A./S
)ail"re A./S
5c9No offset
"nce anl#zed the $%&'( the coverage plot taking care to the evaluation o intersite-distance( it is eas# to understand i target can be used.
) not onl# do*n tilt is possible or D!$$ +,D% obect 'aremeter cell to avoid the ailure during %/".
Do*n tilt must be careull# anl#zed.
) rom !c01o the cell can be recovered an individual o2set or ltering +,D% obect 'arameter can be introduced to ovourite it
)ail"re A./S % Individ"al Ncell Offset
time
, !,!H .
, !,!H /
"c2o
)ail"re A./S % )or'idding Neig!'o"r Cell
3ime
, !,!H .
, !,!H /
,!,!H0 is forbidden to a4ect the re$orting range as its 5ualit' is 5uite unstable6
+e$orti ng
+ange
AdjsDERR to orbid a cell rom reporting range calculation in some instances
"c2o
)ail"re WC5
Poll"tion9Interference
6ost o the Target ailure during the 7, or 7& event.
"nce anl#zed the !c01o( 58!$( the coverage plot taking care to the evaluation o intersite-distance( it is eas# to understand i the 9&!8 is intererered0'olluted
) not( t*o ')s allo* to separate the dominant contribute among the 7, and 7&.
$ela4ing the parameters an improvement should be achieved
3he follo%ing gi&es the number of attem$ts $er e&ent
+3 Ser&ices
7,(.) 8 M.99!.9 !"## ADD;+"<="S3 >? SH> F>+ +3 3+AFF!
7,(/) 8 M.99!./ !"## +",#; +"<="S3 >? SH> F>+ +3 3+AFF!
?+3 Ser&ices
7,(.) 8 M.99!/ !"## ADD; +"<="S3 >? SH> F>+ ?+3 3+AFF!
7,(/) 8 M.99!/@ !"## +",#;+"<="S3 >? SH> F>+ ?+3 3+AFF!
3he failure rate for all the $rocedure can be estimated as %ell
ADD(+",#); FA#;>?SH> ;F>+; 2 ADD(+",#);+"<;>?;SH>;F>+; B ADD(+",#); FA#;>?SH> ;F>+;
M.99!.C 2 M.99!./ B M.99!.C
M.99!0 2M.99!.. B M.99!0
M.99!09 2 M.99!/ B M.99!09
M.99!0 2 M.99!/E B M.99!0
M.99!0. 2 M.99!/@ B M.99!0.
)ail"re WC5 - 1A
.A
AdditionWindow
determines the relative threshold used b# the ;! to calculate the reporting range o event 7,. The threshold is either relative to the &')&/ !c01o measurement result o the best active set cell +<( or to the sum o active set measurement results +=><
AdditionTime denes the ?time- to-trigger? interval bet*een the cell entering the reporting range and the ;! sending the measurement report to the $1& *ith the 7, event
AdditionReportingInterval denes the period o time that the ;! *ait( i the $1& is unable to add 1cell to ,%( beore sending urther reports periodicall#( *ith interval AdditionReportingInterval ( until the 1cell moves out o reporting range( or $1& adds 1cell to ,%.
Measurement +e$ort
ActiveSetWeightingCoecient
)ail"re WC5 - 1C
"c2o
ReplacementReportingInterval
) the $1& is not able to replace the active cell *ith the monitored cell( the ;! continues reporting ater the initial report b# reverting to periodical measurement reporting. The parameter $eplacement $eporting )nterval determines the interval o periodical measurement reports *hen such reporting is triggered b# the event 7&.
ReplacementWindow
determines the margin b# *hich the &')&/ !c01o measurement result o the monitored cell +61e* must e4ceed the &')&/ !c01o measurement result o the an active set cell +6)n,% beore the ;! can send the event 7& triggered 6easurement $eport to the $1&: 61e* >@ 6)n,s A $eplacement9indo* 0 B
ReplacementTime Denes the period o time the monitored cell must continuousl# sta# *ithin the reporting range beore the ;! can send a 6easurement $eport to the $1& in order to replace an active set cell *ith the monitored cell +event 7&.
Measurement +e$ort
NO A./S
. anal6sis for t!e Ads
o4 "sed A./S
A./ Offset
)t is not difcult in live net*ork to nd some pair *orking *ith ver# lo*
For lo* used ,D% has to be intended and ,D% that has e* number o attemps in one da# +e.g =3
*ith occasional ailure.
The ,D% removal has to be considered as the last option( ater the qualit# has been monitored b# drive test result( considering the overall capabilit# o the target to be recovered +e.g. inter-site distance( po*er budget and other options are available or that area.
Un'alanced A./S
Un'alance A./S
5c9No offset
coverage #lot considering inter-
site distance e traffic
2es
,n high number o attempt could be an indication o a problem and even in case o the ailure is not associated an evaluation is required.
The ke# point is the inviduation o the attempt distribution( that in case are not ustied but partcualar populated area( coluld generate lot o signalling.
The attempts could be genarated b# 75 event ever the same ;! not counted in the 67<73.
The possibilit# to recover the ,D% is the avourite option and the do*n tilt careull# anal#zed considering the ailure associated.
No action
Un'alanced WC5
coverage #lot considering
reB"ired
,n high number o attempt could be an indication o a problem and even in case o the ailure is not associated an evaluation is required.
The ke# point is the inviduation o the attempt distribution( that in case are not ustied but partcular populated area( coluld generate lot o signalling.
The attempts could be genarated b# 75 event ever the same ;! not counted in the 67<73.
The possibilit# to have an intererence0pollution increase respect to the unbalanced ,D%.
The optimization should be perormed at 9&!8 level
The ') reported are the same o Failure 9&!8
Ping Pong
Ping-#ong
reB"ired
#oll"tion
)n this particular case the high number o attempt is concentrated in a pair
From , >> 5 and rom 5 >>, as in the picture
,s in the previous case could be an indication o a problem and even in case o the ailure is not associated an evaluation is required to avoid to use a lot signalling.
Ping Pong - )iltering
) am in the !"##;D!H sub-state
6easurement T#pe: )ntra-requenc# measurements $eporting events: .A: Event 1A triggered hen !"!#$ Ec%#o of the measured
cell enters &E reporting range for a dened period of time .1: Event 1 triggered hen !"#!$ E!%# of the measured cell
drops out of the &E reporting range for a dened period of time .!: Event 1! triggered hen !"#!$ E!%#* of the measured
cell enter in A+ by a dened margin for a dened period of time
S'stem nformation G
,pplied or averaging o periodical meas. reports
Poll"tion
Poll"ter .etection
3he best %a' to indi&iduate a ,olluter is the Dri&e 3est
A feedbacI can come from co&erage $lot +?, feedbacI and !ounters
A $olluter can be of di4erent t'$e:
.6 ,S! ,ollution
Too high reuse actor or the '%&. 1e* '%& plan is required
/6 D# ?oise raise
,D% signal strength out o usage *indo* +*ill be never utilized b# the ;!
, do*n tilt or po*er reduction is the solution evaluating all the side e2ects
06 Dominant site
, dominant site over-shooting the ,D becoming congested
PSC Poll"tion
A conrm for the $olluter of the rst t'$e can come from the counter
M.99!0E-C !"## S,"!F! !,!H "!2?> - !#ASS
,ollution !riteria:
3he M.99!0E-C gi&es an indication of "c2?o distribution &alue measured during e&ent .A 6 Ha&ing the distribution higl' unbalanced (normall' centered on class / 0 C) %e ha&e an indication of a $robable $roblem6 For eam$le unbalancing to%ards the scarce &aue of "c2?o but continuing to add cells to AS could gi&e an indication of $ollution
Poll"ted WC5
. Noise Raise
3he ?> ADJS and lo% used ADJS criteria before $resented can gi&e a conrm for a $ollution of this t'$e6
After the statistical data are stabilied maIing across-checI %ith the $ro&isioned ADJS ,lan the $robable $olluters are indi&iduated6
.o$inant site
Filtering the M.9.0 $airs for the recurrent target cell %ith associated occasional failure %e ha&e an estimation of the $robable $olluters
For the $olluters originating failures a do%n tilt is re5uired
,olluted !ell !riteria:
( )
3T_NRT _IN_ACT_SETHREE_CELLM1007C21T_RT _IN_ACT_SETHREE_CELLM1007C2
NRT N_ACT_SET_ ONE_CELL_IM1007C19RT N_ACT_SET_ ONE_CELL_IM1007C0
RNC_79BOverheadHandoverSo!
3T_NRT _IN_ACT_SETHREE_CELLM1007C21T_RT _IN_ACT_SETHREE_CELLM1007C2
NRT N_ACT_SET_ ONE_CELL_IM1007C19RT N_ACT_SET_ ONE_CELL_IM1007C0
RNC_79BOverheadHandoverSo!
Accessi'ilit6
Accessi'ilit6f #> accessibilit' ++! from:
C Accessibilit' Statistical !ounters
S$ecic counter for +esource monitoring can be e&aluated:
.6 ++!;!>??;S3,;FA#;A!2++!;!>??;S3,;FA#;all KK =#2D# !ell #oad L code allocation
/6 ++!;!>??;S3,;FA#;13S2 ++!;!>??;S3,;FA#;all KK !" usage
06 ++!;!>??;S3,;FA#;3+A?S2 ++!;!>??;S3,;FA#;all KK !A! rej or AA#/ setting u$ fail
C6 ++! S"3=, FA# D=" 3> =1 AA#/ 3+A?S 2 ++!;!>??;S3,;FA#;all KK AA#/ shortage
6 ++! !>?? S"3=, FA# D=" 3> +?3 A##> FA# 2 ++!;!>??;S3,;FA#;all KK ++M= o&erload
!ould be useful for congestion detection to not neglect the anal'sis of failure in access $hase %ith cause +AD>
RRC Accessi'ilit6
2es
$$& F,)8 ,&
) the condition triggered is $$&&"11%T'F,)8,& the po*er anal#sis is required either T4 or $4 and code availabilit#
) the thresholds are correctl# settled but the cell seems to be congested according to the class3 and classE permanence time a cross check on the e2ective trafc present is required.
%ome intererer can be discovered b# the drive test result.
"ther*ise an e4pansion must be considered
$$& Fail 5T%
$8 reection rom 5T% sending a 15,': $8 %etup Failure.
"ld counters 67<< are replaced b# the one created or 3GG' )ub
The most important cause or $1" included in is the lack o &!
9%' e4pansion or ne* site is required
I"' not Congested
RRC Accessi'ilit6 % AC Congestion
RRC Accessi'ilit6 % <S Congestion
CE AVE_AVAIL_ M51C!
CE AVE_AVAIL_ M51C!
E_DL AV"_USED_C M51C# BTS $ DL &'( CE )*$l$se+ '& Ra*$' A,e(a-e RNC_#3A ==
CE AVE_AVAIL_ M51C!
CE AVE_AVAIL_ M51C!
E_UL AV"_USED_C M51C. BTS $UL &'( CE )*$l$se+ '& Ra*$' A,e(a-e RNC_#31A ==
KPI (2) C5 Usage
RA< Accessi'ilit6
C D="33>
C D+*" 3"S3
!onsidering that after +A?A,: +ab Assignment +e5uest from !ore a double checI is
re5uested6
Due to D!H929 allocation more signicant are !S for A! and 13S fail cause and ,S for 3+A?S
after reconguration
,S ser&ices that can su4er more the follo%ing cases can be e&aluated:
!S
,S
.6 +A1 S"3=, FA#=+"S D=" 3> 13S
RA< Accessi'ilit6
_IN_RNCATA_#$_L'ALLO_(OR_ )M1002C310 _IN_RNCATA_32_L'ALLO_(OR_ )M1002C307
_IN_RNCATA_1#_L'ALLO_(OR_ )M1002C30"IN_RNCATA_&_L_ 'ALLO_(OR_ )M1002C303
L_IN_SRNCAC*+_3&$_'ALLO_,S_B)M1002C173L_IN_SRNCAC*+_320_'ALLO_,S_B)M1002C172
L_IN_SRNCAC*+_2"#_'ALLO_,S_B)M1002C171L_IN_SRNCAC*+_12&_'ALLO_,S_B)M1002C170
_IN_SRNCAC*+_#$_L'ALLO_,S_B)M1002C1#9 _IN_SRNCAC*+_32_L'ALLO_,S_B)M1002C1#&
_IN_SRNCAC*+_1#_L'ALLO_,S_B)M1002C1#7IN_SRNCAC*+_&_L_ 'ALLO_,S_B)M1002C1##
L_IN_SRNC NTERA_3&$_ 'ALLO_,S_I)M1002C1"7L_IN_SRNC NTERA_320_ 'ALLO_,S_I)M1002C1"#
L_IN_SRNC NTERA_2"#_ 'ALLO_,S_I)M1002C1""L_IN_SRNC NTERA_12&_ 'ALLO_,S_I)M1002C1"$
L_IN_SRNC NTERA_#$_'ALLO_,S_I)M1002C1"3L_IN_SRNC NTERA_32_'ALLO_,S_I)M1002C1"2
L_IN_SRNC NTERA_1#_'ALLO_,S_I)M1002C1"1 _IN_SRNC NTERA_&_L'ALLO_,S_I)M1002C1"0
+_TRANSIL_,S_BAC* RAB_ST,_(AM1001C111R_TRANSIL_,S_INETRAB_ST,_(AM1001C10# CAC!od-era!e(a./-reReervI-,S
_IN_RNCATA_#$_L'ALLO_(OR_ )M1002C310 _IN_RNCATA_32_L'ALLO_(OR_ )M1002C307
_IN_RNCATA_1#_L'ALLO_(OR_ )M1002C30"IN_RNCATA_&_L_ 'ALLO_(OR_ )M1002C303
L_IN_SRNCAC*+_3&$_'ALLO_,S_B)M1002C173L_IN_SRNCAC*+_320_'ALLO_,S_B)M1002C172
L_IN_SRNCAC*+_2"#_'ALLO_,S_B)M1002C171L_IN_SRNCAC*+_12&_'ALLO_,S_B)M1002C170
_IN_SRNCAC*+_#$_L'ALLO_,S_B)M1002C1#9 _IN_SRNCAC*+_32_L'ALLO_,S_B)M1002C1#&
_IN_SRNCAC*+_1#_L'ALLO_,S_B)M1002C1#7IN_SRNCAC*+_&_L_ 'ALLO_,S_B)M1002C1##
L_IN_SRNC NTERA_3&$_ 'ALLO_,S_I)M1002C1"7L_IN_SRNC NTERA_320_ 'ALLO_,S_I)M1002C1"#
L_IN_SRNC NTERA_2"#_ 'ALLO_,S_I)M1002C1""L_IN_SRNC NTERA_12&_ 'ALLO_,S_I)M1002C1"$
L_IN_SRNC NTERA_#$_'ALLO_,S_I)M1002C1"3L_IN_SRNC NTERA_32_'ALLO_,S_I)M1002C1"2
L_IN_SRNC NTERA_1#_'ALLO_,S_I)M1002C1"1 _IN_SRNC NTERA_&_L'ALLO_,S_I)M1002C1"0
+_TRANSIL_,S_BAC* RAB_ST,_(AM1001C111R_TRANSIL_,S_INETRAB_ST,_(AM1001C10# CAC!od-era!e(a./-reReervI-,S
+ ++
++ ++ ++ ++
++ ++
++ ++
++ ++
+ =
