umts qos monitoring process

7/25/2019 UMTS QoS Monitoring Process

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UMTS QoS Monitoring Process


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Key Words

*P% +,ey perfor-ance indicator./ indicator definition/ for-la/ *P% -onitoring flo/ *P%

opti-i2ation/ *P% classification

A!str"ct

T(is gide -ainly descri3es t(e for-lae/ *P% classification/ *P% -onitoring -et(ods

and flos/ and *P% opti-i2ation -et(ods'

A!!re#i"tions

A!!re#i"tion F$%% n"&e

$TM $sync(ronos Transfer Mode

C4# Call 4rop #ate

CE C(annel Ele-ent

C& Core &etor,

CP%C Co--on Pilot C(annel

CQ% C(annel Qality %ndicator

CQT Call Qality Test

4T 4ri)e Test

E64C En(anced plin, 4edicated C(annel

S4P$ ig( Speed 4onlin, Pac,et $ccess

S64SC ig( Speed 4onlin, S(ared C(annel

S6SCC ig( Speed S(ared Control C(annel

SUP$ ig( Speed Uplin, Pac,et $ccess

%CMP %nternet Control Message Protocol

%P %nternet Protocols

%Po$ %nternet Protocols ")er $TM

*P% *ey Perfor-ance %nde

$& ocal $rea &etor,M$C Media $ccess Control

M9MSMlti-edia 9roadcast and MlticastSer)ice

&ode9 &ode 9

"MC "peration : -aintenance Centre

P4P Pac,et data protocol

P% Perfor-ance %nde

PPP Point to Point Protocol

PS Pac,et6Sitc(ed do-ain

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A!!re#i"tion F$%% n"&e

QoS Qality of Ser)ice

#$9 #adio $ccess 9earer

#; #adio ;reery %-portant People

>P >ideo P(one

=$& =ide $rea &etor,

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A!o$t T'is (oc$&ent

S$&&"ry

C'")ter (escri)tion

1 ")er)ie 9rief introdction to *P% opti-i2ation

*P% Monitoring Process *P% -onitoring process

? *P% $nalysis Met(ods Co--on *P% analysis -et(ods/ 3asic *P% analysis s,ills/and general process for *P% opti-i2ation analysis

@ *P% "pti-i2ation $nalysis *P% "pti-i2ation $nalysis on CS call drops/ PS call drops/accessi3ility indicators/ -o3ility indicators/ and resorceindicators

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T$9E "; C"&TE&TS

* O#er#ie+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,*

- KPI Monitoring Process,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-'1 *P% Monitoring Process'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' #otine *P% Monitoring Process''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''?'? *P% Monitoring Process 4ring Para-eter Modification'''''''''''''''''''''''''''''''''''''@'@ *P% Monitoring 4ring #&C or &ode9 >ersion Upgrade''''''''''''''''''''''''''''''''''''5'5 *P% Monitoring 4ring Cto)er''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''!

. KPI An"%ysis Met'ods,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,/?'1 *P% $nalysis Met(ods''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''!?'1'1 T"P & =orst Cells Met(od''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''?' 9asic *P% $nalysis S,ills''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''10?''1 *P% Monitoring Tools''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''?'' *P% $nalysis Tools''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''?'? Aeneral Process of *P% "pti-i2ation $nalysis'''''''''''''''''''''''''''''''''''''''''''''''''1

0 KPI O)ti&i1"tion An"%ysis,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,*/@'1 CS Call 4rop "pti-i2ation'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''1!@'1'1 4efinition of Call 4rop''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'1' CS Call 4rop $nalysis ;loc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

@' PS Call 4rop "pti-i2ation'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''1B@''1 "pti-i2ation ;loc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'? "pti-i2ation of $ccessi3ility %ndicators''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''1@'?'1 4efinition of $ccess ;ailre''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'?' $nalysis on ##C Connection ;ailres'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'?'? $nalysis on #$9#9 Setp ;ailres''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'@ "pti-i2ation of Mo3ility %ndicators''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''?5@'@'1 "pti-i2ation of Soft ando)ers'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'@' "pti-i2ation of ard ando)ers''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'@'? "pti-i2ation of %nter6#$T ando)ers'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'5 "pti-i2ation of #esorce %ndicators''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@B@'5'1 #esorce %ndicator "pti-i2ation ;loc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''

@'5' Code #esorce "pti-i2ation'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'5'? Monitoring CE #esorce''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'5'@ "pti-i2ation of Poer Control'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'5'5 Speeding p #ate 4ongrade'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@'5'! Monitoring and "pti-i2ing Uplin, Capacity''''''''''''''''''''''''''''''''''''''''''''''''''''''@'5'7 "pti-i2ation of Uplin, Capacity at t(e =(ole &etor, e)el'''''''''''''''''''''''''''@'5'8 "pti-i2ation of Uplin, Capacity for a Single Cell'''''''''''''''''''''''''''''''''''''''''''''

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;%AU#ES

;igre 161 Doint *P% analysis'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 1

;igre 61 #otine *P% -onitoring process''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

;igre 6 *P% -onitoring process dring para-eter -odification'''''''''''''''''''''''''''''''''''''''''@

;igre 6? *P% -onitoring or,flo dring #&C or &ode9 )ersion pgrade''''''''''''''''''''''''''5

;igre ?61 #; configration at %C site''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 8

;igre ?6 $ntenna energy distri3tion at %C site'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' B

;igre ?6? *P% opti-i2ation analysis process''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 15;igre @61 CS call drop analysis floc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''17

;igre @6 PS call drop opti-i2ation floc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''1B

;igre @6? $nalysis floc(art of ##C connection setp failres'''''''''''''''''''''''''''''''''''''''''''?

;igre @6@ $nalysis floc(art of #$9 setp failres''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''8

;igre @65 Soft (ando)er opti-i2ation floc(art'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''?@

;igre @6! ard (ando)er opti-i2ation floc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@1

;igre @67 %nter6#$T (ando)er opti-i2ation floc(art''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@!

;igre @68 #esorce indicator opti-i2ation floc(art'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@B

T$9ES

Ta3le ?61 ist of CS T"P & =orst Cells'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 7

Ta3le ?6 %ndicators #elated it( CS Call 4rop''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''B

Ta3le @61 Para-eters T(at A S(all Pro)ide to ?A''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@@

Ta3le @6 Para-eters T(at ?A S(all Pro)ide to A''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@@Ta3le @6? #esorce *P%s and $lar- T(res(olds'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''@8

Ta3le @6@ $dsting Code #esorce $llocation'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 51

Ta3le @65 Ea-ple of Para-eter Modification for #ate 4ongrade''''''''''''''''''''''''''''''''''''''5

Ta3le @6! Ea-ple of Poer Control Para-eter Modification'''''''''''''''''''''''''''''''''''''''''''''''5?

Ta3le @67 Ea-ple of Poer Control Para-eter Modification for ea)y6Traffic Cell'''''''''''''5?

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* O#er#ie+

T(e radio netor, *P%s directly reflect t(e netor,


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- KPI Monitoring Process

T(e prpose of *P% -onitoring is to find ot a3nor-al e)ents t(at affect ser)ices as ell

as s3scri3ersF perception and sol)e t(e pro3le-s as early as possi3le' ;or instance/ if

t(e call drop rate at a certain site goes o)er 50G/ e need to find t(e pro3le- and or,

ot t(e soltion in t(e earliest ti-e'

$s it is )ery rgent and i-portant to locate *P% pro3le-s/ e need a (ole set of

scientific *P% -onitoring -ec(anis- and pro3le- s(ooting process/ as ell as

appropriate -onitoring tool and analysis tool to (elp s find t(e call drops cased 3y

trans-ission pro3le-s/ resorce congestion/ cells ser)ice interrption/ serios

interference/ (ardare falt it( &ode9/ rong configration of #&C para-eters in ti-e'

=e classify *P% -onitoring into for categoriesH rotine *P% -onitoring/ *P% -onitoring

dring t(e process of para-eter -odification/ *P% -onitoring dring t(e #&C or &ode9

)ersion pgrade/ and *P% -onitoring dring t(e process of cto)er' #otine *P%

-onitoring s(old 3e perfor-ed e)ery day and 3e recorded in a *P% daily report/ (ic(

s(old in)ol)e t(e orst CS cell/ t(e orst PS cell/ t(e cell it( t(e loest ##C

connection rate/ t(e cell it( t(e -ost serios resorce li-it/ and so on'

-,* KPI Monitoring Process

*P% -onitoring falls into for categoriesH rotine *P% -onitoring/ *P% -onitoring dring

t(e process of para-eter -odification/ *P% -onitoring dring t(e )ersion pgrade of

#&C or &ode9/ and *P% -onitoring dring t(e process of cto)er' Eac( type of

-onitoring (as its on -onitoring ite-s and otpt for-' ;or instance/ t(e otpt of t(e

rotine *P% -onitoring s(old 3e a daily report/ (ile t(e otpt of ot(er *P% -onitoring

types s(old 3e a *P% co-parison report' 4ifferent types of *P% -onitoring s(old (a)e

different ti-e granlarities according to t(e re


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-,- Ro$tine KPI Monitoring Process

;igre 6 #otine *P% -onitoring process

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' ?

Para-eter pro3le-

and to t(e planningpersonnel

Classification of t(e

orst cells

Pro3le- (andlingtea- classifies/

collects and locatest(e orst cells

and to t(enetor,

opti-i2ationpersonnel

and to#:4 dept'

or csto-erser)ice dept'

Send e-ail in fiedfor-at to rele)ant

personnel

Co)erage pro3le-

E


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-,. KPI Monitoring Process ($ring P"r"&eterModi2ic"tion

;igre 6? *P% -onitoring process dring para-eter -odification

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' @


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-,0 KPI Monitoring ($ring RNC or Node3 4ersionU)gr"de

;igre 6@ *P% -onitoring or,flo dring #&C or &ode9 )ersion pgrade

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' 5

Ies

&o

&o

End

ocate t(e orstcells' 4eter-ine(et(er t(ey arerelated it( t(e)ersion pdate'

Ies

&etor, *P%-onitoring

15 -intes ti-egranlarity

Eecte t(eor,s(eet to

pgrade )ersion

"tpt for-al =ord report+Co-pare t(e (orlygranlarity *P%s 3efore andafter t(e para-eter-odification/ and otpt t(ereslt e)ery (or'.

=(et(er t(e#&C6le)el

*P% isnor-al

*eep on -onitoring+15 -intesgranlarity.

Send -ail to orcall t(e personin c(arge

#oll3ac, ornot

Crrent )ersion


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-,5 KPI Monitoring ($ring C$to#er

;or t(e netor, on (ic( t(e eersion Upgrade'K Please read it for reference'

. KPI An"%ysis Met'ods

.,* KPI An"%ysis Met'ods

4ifferent netor, pro3le-s re


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.,*,* TOP N Worst Ce%%s Met'od

4ring t(e (ole process of *P% opti-i2ation analysis/ T"P & orst cells analysis

-et(od is t(e -ost effecti)e one/ (ic( can 3e sed t(rog(ot t(e (ole opti-i2ation

p(ase' 9y focsing on t(e T"P & orst cells/ yo can sol)e t(e -aor pro3le-s it( t(e

netor,' $3nor-al call drop e)ents -ay (appen e)ery day/ and t(ese e)ents -ay

represent pro3le-s of a ,ind' $fter sol)ing t(e pro3le-s it( T"P & cells/ yo can sol)e

t(e pro3le-s of t(e sa-e ,ind' T(erefore/ focsing on T"P & cells is one of t(e -ost

effecti)e ays to sol)e pro3le-s'

T"P & orst cells analysis -et(od is applica3le to t(e opti-i2ation analysis of all t(e

indicators' C(oose T"P & orst cells according to a certain t(res(old/ (ic( )aries

depending on different indicators' & stands for t(e n-3er of t(e orst cells' =(en t(e

orst cells are too -any to 3e or,ed on/ t(e n-3er of t(e orst cells can 3e

decreased so t(at yo can focs on t(e-' T"P & cells analysis -et(od incldes t(efolloing stepsH

Step 1H Screen ot T"P & cells according to t(e condition of t(e indicators yo care

a3ot'

Step H Condct a (ealt( c(ec, for T"P & cells' C(ec, (et(er t(ere are any pro3le-s

it( trans-ission or 3oards/ and c(ec, (et(er t(e orst cells are cased 3y eternal

a3rpt incidents/ sc( as terri3le eat(er/ gat(erings/ or (oliday +3ecase dring

gat(erings and (olidays t(e traffic is sally (ea)y.'

Step ?H C(ec, t(e radio para-eters configration of t(ese cells/ t(e radis of t(ese cells

and t(eir neig(3oring cells/ and co-pare t(e- it( t(e nor-al cells'

Step @H Eport t(e indicator rele)ant -ost closely it( t(e indicators yo care a3ot and

analy2e it to find t(e pro3le- indirectly'

;or instance/ one day/ CS call drop rate of a (ole netor, as (ig(' =e analy2ed t(e

pro3le- 3y t(e T"P & cells analysis -et(od'

Step 1H Screen ot T"P & cells according to t(e condition of t(e indicators yo care

a3ot'

=e sed t(e C&" *P% analysis fnction to screen ot T"P & cells +ot(er tools can 3e

also sed./ and selected 10 cells it( t(e (ig(est CS call drop rate'

Ta3le ?61 ist of CS T"P & =orst Cells

Inde6 Ce%% RNS s$!net I( Ce%% I(C"%% dro)

r"te7 CS AMRN$&!er o2 c"%%

dro)7 #oice

1 Z91U6$%61 +01. 1B11 @1'58G 55?

Z91U6$%6? +01. 1B1? ?B'55G 5@5

? *E1U656 +0?. ?0@!1 15'5!G ?70



15/60


Inde6 Ce%% RNS s$!net I( Ce%% I(C"%% dro)

r"te7 CS AMRN$&!er o2 c"%%

dro)7 #oice

1

@*E1U656?

+0?. ?0@!? 15'81G ?!0

5$*1U6BM6?

+0. 110!? ?'?BG 8

! %C1U6B#61 #&C101+101. 108B1 '!G 1!

7$*1U6BM61

+0. 110!1 '@BG 15

8E9P1U6B#6?

#&C101+101. 18? '?0G 05

BS#S1U656

1

#&C106

CS+10.

10B1 ?'BG 1!B

10#M1U6!#61

#&C106CS+10.

0!71 ?'@1G 1!7

Step H C(ec, t(e trans-ission and (ardare of t(e T"P & cells and c(ec, (et(er

t(ey are cased 3y eternal a3rpt incidents/ sc( as terri3le (et(er/ gat(erings/ or

(olidays (en traffic is sally (ea)y'

$nd t(en/ e condcted a (ealt( c(ec, for eac( cell and paid attention to rotine alar-s

and 9PC 3oard pro3le-s' =e fond t(ere ere 3ro,en associations in so-e *E sites'

Step ?H C(ec, t(e radio para-eters configration of t(ese cells/ t(e radis of t(ese cells

and t(eir neig(3oring cells/ and co-pare t(e- it( t(e nor-al cells'

+1.Pro3le- it( t(e cell radisH $fter t(e c(ec,/ e fond t(e cell radis of t(e $* site

as '5 ,-' 9ecase t(e $* site as sitated 3y t(e sea and t(e antenna as placed

)ery (ig(/ t(e radis of '5 ,- as far fro- enog(' So e c(anged t(e cell radis to 10

,-/ and t(e pro3le- of (ig( call drop rate as t(s sol)ed'

+.Pro3le- it( configrationH %C site is an indoor P"% site' T(e ##U #T port and

t(e ##U # port ere configred re)ersely/ (ic( is t(e case of (ig( call drop rate'

$fter -odifying %C/ e fond t(at signals of t(e second ##U ere recei)ed 3y t(e #

port' So e c(anged t(e configration of t(e #T port and t(e # port/ t(e pro3le- of

(ig( call drop rate as t(s sol)ed'

;igre ?65 #; configration at %C site



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;igre ?6! $ntenna energy distri3tion at %C site

Step @H Eport t(e indicator rele)ant -ost closely it( t(e indicators yo care a3ot and

analy2e it to find t(e pro3le- indirectly'

Ta3le ?6 %ndicators #elated it( CS Call 4rop

Inde6 Ce%%

RA3 re%e"sen$&!er 2or I$connection

re%e"se re8$est!y UTRAN 2orCS do&"in in

ce%%7 r"dioconnection+it' UE %ost

RA3 re%e"sen$&!er 2or I$

connectionre%e"se re8$est!y UTRAN 2orCS do&"in ince%%7 2"i%$re in

t'e r"dioInter2"ce

)roced$re


re%e"sere8$est !yUTRAN 2or

CS do&"in ince%%7 re%e"se

d$e too#er%o"dcontro%



CS do&"in ince%%7

$ns)eci2ied2"i%$re

A#er"gece%% 2re8RTWP9d!&:

1 Z91U6$%61 @8 @? 0 B 610@'177

Z91U6$%6?

@7? @0 0 ?? 610@'15

?*E1U6561

?@! 1! 0 8 6105'B08

@*E1U656?

??0 18 0 1? 610!'0777

5$*1U6BM6?

!B 1B! 0 18 610?'1B0!

! %C1U6 100 100 0 1! 6101'5@0@

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' B


17/60


Inde6 Ce%%


re%e"se re8$est!y UTRAN 2orCS do&"in in

ce%%7 r"dioconnection+it' UE %ost

RA3 re%e"sen$&!er 2or I$

connection

re%e"se re8$est!y UTRAN 2orCS do&"in ince%%7 2"i%$re in

t'e r"dioInter2"ce

)roced$re


re%e"se

re8$est !yUTRAN 2or

CS do&"in ince%%7 re%e"se

d$e too#er%o"dcontro%



CS do&"in ince%%7

$ns)eci2ied2"i%$re

A#er"gece%% 2re8RTWP9d!&:

B#61

7$*1U6BM61

!@ 1?1 0 0 610?'1B?@

8E9P1U6B#6?

B8 B0 0 17 6101'@1?

BS#S1U6561

87 5B 0 610@'?58

10#M1U6!#61

@ 111 0 1? 610'7!B7

.,- 3"sic KPI An"%ysis S;i%%s

9e a3le to se t(e *P% statistics tool and t(e analysis tool

Use tools to learn a3ot t(e rnning state of t(e (ole netor,


18/60


.,-,* KPI Monitoring Too%s

&etor, -anage-ent tool &et&-enT?1H cont *P% original data/ alar- data/

radio para-eter configration in cells/ and para-eter configration on t(eeart('

*P% daily report generating toolH classify ,ey indicators according to a certain

condition/ and screen ot t(e orst cells'

.,-,- KPI An"%ysis Too%s

CNO Too% C&" tool (as t(e *P% analysis fnction' So sing it/ yo can

screen ot t(e orst cells according to )arios conditions/ and point ot t(e

corresponding conter of an indicator'

Sign"%Tr"ceTrace t(e signaling +#& signaling and #& signaling. of #&C

interfaces/ (ic( incldes t(e % interface/ t(e %r interface/ t(e %3 interface

and t(e U interface +t(e signaling flo 3eteen #&C and UE at ##C layer.'

$nd #& signaling trace is a co--on ay for locating t(e *P% pro3le-' 9eing

a3le to trace t(e #&C signaling is a 3asic re


19/60


engineers at t(e rear side' T(e a3nor-ities reported on t(e &ode9 ill 3e

stored at t(e "MC9 ser)er according to different #&Cs' To condct &ode9

a3nor-ity pro3e analysis/ yo need to donload a3nor-ity pro3e files fro-

different "MC9 ser)ers and t(en se t(e a3nor-ity pro3e tool to -a,e aco-pre(ensi)e analysis'

CTS Too% CTS is a tool de)eloped 3y t(e C& depart-ent/ (ic( can trace

signaling in dept( according to %MS%/ and trace signaling across #&Cs' So t(is

is particlarly sita3le to trace >%P s3scri3ers' %n t(is case/ CTS is easier to

se t(an SignalTrace/ (ic( can only trace signaling of #&Cs one 3y one'

CTS can trace t(e interacti)e signaling 3eteen netor, ele-ents +&Es.

it(in t(e C&/ as ell as t(e signaling of t(e % interface and t(e U interface'

T(is ,ind of signaling tracing is (at e called in6dept( tracing' T(e or,

principle of CTS is to set p an %MS% tas, on t(e CTS ser)er and send it to t(e

C& front side/ (ic( ill t(en send t(is tas, to eac( C& -odle )ia t(einterfaces dedicated to t(e C& -odles and t(e #&C/ and t(en eac( -odle/

after recei)ing t(e signaling related to t(e %MS% tas,/ ill send t(e signaling

3ac, to t(e CTS ser)er )ia t(e C& front side' T(e interfaces -entioned a3o)e

are pri)ate interfaces/ so t(is tool can only spport or on C& and #&C'

CTS signaling can 3e c(ec,ed and analy2ed it( an offline tool/ 3t t(e offline

tool does not or, )ery ell 3ecase of t(e lac, of continos opti-i2ation

and perfection'

UE %og4T test is also an i-portant ailiary ay in analy2ing *P% indicators'

T(ere are -any pro3le-s t(at cannot 3e located 3y tracing signaling at t(e

netor, side/ and can only 3e located 3y t(e se of UE log' T(e co--onlysed dri)e test softare incldesH QL4M$PEL +QC$T./ C&TC$& and

TEMS' C&TC$& and TEMS are often sed for netor, opti-i2ation' ;or t(e

se of C&TC$&/ please refer to t(e corresponding (elp file and t(e

instrction doc-ent p3licly released 3y t(e &etor, "pti-i2ation Tool

4epart-ent' QL4M and t(e analysis tool $PEL +QC$T. pro)ided 3y

Qalco-- is )ery poerfl/ (ic( (a)e contri3ted a lot for t(e sta3ility and

-atrity of or syste- for -any years'

.,. Gener"% Process o2 KPI O)ti&i1"tion An"%ysis

9asic analy2ing ideasH

*P% opti-i2ation is a process to find and sol)e pro3le-s' *P% opti-i2ation dring t(e

operation and -aintenance stage is -ainly to pic, ot t(e perfor-ance data t(at needs

special attention fro- t(e "MC/ classify t(ese perfor-ance data/ and t(en co-pare t(e

)ale of t(ese data it( t(at re


20/60


*P% analysis is a process fro- t(e (ole to t(e part'

Step 1H C(ec, t(e ,ey indicators fro- t(e )ie of t(e (ole netor,' %f t(ere is not any

pro3le-/ st ignore t(e-' "t(erise/ try to locate t(e #&C &E t(at (as t(e pro3le-'

Step H $naly2e t(e indicators of t(e corresponding #&C to find ot t(e #&C (ose

indicators (a)e t(e pro3le-'

Step ?H $naly2e t(e indicators of t(e cell nder t(e pro3le- #&C to find ot t(e orst

cells or T"P & cells' %f t(e indicators of all t(e cells nder t(e #&C are tend to 3e lo/ it

is a co--on pro3le- pro3a3ly cased 3y para-eter configration' $nd t(en c(ec,

(et(er t(e radio para-eter configration in t(e cells nder t(is #&C is t(e sa-e as

t(at in t(e cells nder t(e nor-al #&Cs'

Step @H Ma,e a co-pre(ensi)e analysis on t(e *P%s/ alar-s/ 4T test data/ and

csto-er co-plains of t(e orst cells to find ot a soltion'

$nalysis -et(odH

$fter learning t(e *P% analysis ideas/ e -st ,no so-e co--on *P% analysis

-et(ods to rle ot cases of pro3le-s fro- t(e o3)ios ones to t(e (idden ones'

;or ea-ple/ e fond t(at t(e TCP code ords ere strictly li-ited at eig(t sites near a

par,/ and t(e call drop rate rose sddenly' o to sol)e t(is pro3le-

Met(od oneH ;irst/ e c(ec,ed (et(er t(e alar-s/ trans-ission/ and 3oards of t(ese

sites ere nor-al' $fter t(ey are pro)ed all nor-al/ e sent so-e engineers to t(e siteto do test' $nd -ean(ile/ e traced t(e #&C signaling at t(e "MC' %t trned ot t(at

t(e test reslt as nor-al/ and t(e indicators of t(ese sites of t(at day did not (a)e any

pro3le- and code ords ere not li-ited' $nd later e ,ne fro- t(e nes t(at t(ere

as a 3ig gat(ering of a3ot one -illion people at t(e par, at t(at -o-ent' Until t(en e

ca-e to ,no t(at t(e congestion as cased 3y too -any sers sing t(e netor, at

t(e sa-e ti-e'

Met(od toH ;irst/ 3ecase t(e eig(t sites ent orse all of a sdden/ it as nli,ely t(at

t(e pro3le- lied in t(e (ardare' T(en e c(ec,ed (et(er t(e radio para-eters (ad

3een -odified t(e day 3efore' T(e reslt is no or,s(eet (ad 3een issed to -odify

t(ose para-eters/ and no alar- as fond at t(ose sites' T(erefore/ e eclded t(e

possi3ility of (ardare pro3le-' T(en e c(ec,ed t(e traffic trend grap( of t(e last fe

days +o)er se)en days. and fond t(at t(e (ig( call drop rate -ig(t 3e cased 3y (ig(

traffic' T(e grap( s(oed t(at traffic of eac( site rose sddenly on t(e day 3efore' T(s

e ca-e to t(e conclsion t(at t(is as an a3nor-al a3rpt e)ent/ (ic( -ay (a)e

3een cased 3y a gat(ering' $nd later e ere told t(at t(ere as a 3ig gat(ering at t(e

par,' So e ere assred t(e code ords li-itation and (ig( call drop rate at t(e eig(t

sites ere cased 3y too -any s3scri3ers sing t(e netor, at t(e sa-e ti-e'

9y co-paring t(e to -et(ods a3o)e/ e can find t(at alt(og( t(e first one +sending

engineers to t(e site/ it(ot t(e consideration of a3nor-al e)ents. is co--only sed/ it

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' 1?


21/60


is inefficient and costs -ore resorce' T(e second -et(od +analy2ing t(e pro3le- 3y

t(e -eans of eclsion and association. is -ore efficient' ;ro- t(is case/ e old li,e

to e-p(asi2e t(at *P% analysis is a process of pro3le- eclsion' Using t(e

co-pre(ensi)e -et(ods +li,e Met(od "ne. at t(e first 3rs( -ay 3e -a,ing a detor'

Eclsion -et(odH C(ec, t(e alar-s on t(e "MC to learn a3ot t(e state of

t(e #&C/ &ode9/ 9PC 3oard/ and t(e trans-ission' %f t(ere are o3)ios

3ro,en lin, in trans-ission or (ardare pro3le-/ t(e case of t(e pro3le- is

easy to locate'

%ncident associationH %f t(e pro3le- is it( a great n-3er of sites/ ta,e a3rpt

incidents into accont/ sc( as large6scale gat(ering/ terri3le eat(er of

incorrect operation' T(ese incidents ill pt inflence of different le)els and

ranges on t(e netor, indicators'

Co-parison of radio para-etersH %f so-e site goes rong in a sdden/ c(ec,

(et(er t(e radio para-eter configration of t(is site is consistent it( t(at of

ot(er nor-al sites' %f not/ c(ange it as t(at of t(e nor-al sites/ 3ecase t(e

indicator decrease -ay 3e cased 3y an incorrect -odification of radio

para-eters'

#ele)ant indicators associationH %f a certain indicator is in poor condition/

c(ec, its rele)ant indicators and find t(e co--on pro3le- fro- t(ese rele)ant

indicators'

Co-pre(ensi)e pro3le- locationH =(en t(e a3o)e reasons are eclded/ se4T data/ *P% data/ #&C signaling analysis data to locate t(e pro3le- it(

indicators co-pre(ensi)ely'

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' 1@


22/60


;igre ?67 *P% opti-i2ation analysis process



23/60


0 KPI O)ti&i1"tion An"%ysis

T(is c(apter -ainly de-onstrates (o to analy2e t(e indicator pro3le-s fro- t(e aspect

of "MC data/ and pro)ides floc(arts for *P% opti-i2ation' T(e detailed analy2ing

-et(od and cases of e)ery special s3ect can 3e c(ec,ed in t(e opti-i2ation gides of

all t(e s3ects'

0,* CS C"%% (ro) O)ti&i1"tion

T(e CS call drop rate is t(e -ost i-portant indicator in *P% opti-i2ation'

0,*,* (e2inition o2 C"%% (ro)

$fter c(ec,ing t(e signaling on t(e U interface at t(e UE side/ t(e engineer can dge

t(e sitation a call drop if t(e U interface -essage satisfies one of t(e folloing t(ree

conditions dring t(e calling process +in connection.'

RNC Releaseis not recei)ed/ 3t t(e UE condition c(anges fro- CEN4C to %4E'

RRC Release is recei)ed and t(e released case )ale is Not Normal.

"ne of t(e folloing t(ree -essages CC Disconnect/CC Release Complete/ and CC

Release is recei)ed/ and t(e released case )ale is Not Normal Clearing or Not

Normal, Unspecified'

%n a 3oard sense/ t(e call drop incldes t(e call drop rates of C& and UT#$&' T(e call

drop of UT#$& incldes t(e folloing to aspectsH

$fter t(e sccessfl ser)ice esta3lis(-ent/ #&C sends t(eRAB Release Request to

C&'

$fter t(e sccessfl ser)ice esta3lis(-ent/ #&C sends t(e IU Release Request to C&'

ater/ #&C recei)es t(e IU Release Commandfro- C&'

&ote t(at #$& call drop statistics/ (ic( is defined fro- t(e aspect of l interface

signaling/ -eans t(e lanc(ing ti-es of RAB Release Requestand lu Release Request

of #&C' $nd t(e 4T call drop statistics is defined fro- t(e aspects of t(e U interface

-essage/ non6access strat- -essage and case )ale' #$& call drop statistics and

4T call drop statistics are not eactly t(e sa-e'

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' 1!


24/60


0,*,- CS C"%% (ro) An"%ysis F%o+c'"rt

;igre @68 CS call drop analysis floc(art

Conter list



25/60


C:;$#


26/60


0,- PS C"%% (ro) O)ti&i1"tion

0,-,* O)ti&i1"tion F%o+c'"rt

;igre @6B PS call drop opti-i2ation floc(art

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' 1B


27/60


Conters

Number of RNC initiate release for &S-R)) *ith standerd failure causes

C:;$#>;2%; Num(er of RNC initiate release for P54R%% (y uesr inacti'e

C:;$#>;2%# Num(er of RNC initiate release for P54R%% (y repeat integrity chec)

C:;$#>;2%: Num(er of RNC initiate release for P54R%% (y @E initiate release

C:;$#>;2%= Num(er of RNC initiate release for P54R%% (y lost @E connection

C:;$#>;2%2 Num(er of RNC initiate release for P54R%% (y relocation complete timer e&ceed

C:;$#>;2%> Num(er of RNC initiate release for P54R%% (y radio interface fail

C:;$#>;>$= Num(er of RNC initiate release for P54R%% (y OC inter'ention

C:;$#>;>$2 Num(er of RNC initiate release for P54R%% (y o'erload control

C:;$#>;>$> Num(er of RNC initiate release for P54R%% (y RAB pre4empty

C:;$#>;>$< Num(er of RNC initiate release for P54R%% (y I@@P fail

C:;$#>;>$? Num(er of RNC initiate release for P54R%% (y @TRAN generating

C:;$#>;>$% Num(er of RNC initiate release for P54R%% (y unspecic fail

Number of RNC initiate RAB release by release re+uest for &S-,S&A *ith standerd.ailure causes

C:;$#?;??%Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y uesrinacti'e

C:;$#?;?%$Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y repeatintegrity chec)

C:;$#?;?%;Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y @E initiaterelease

C:;$#?;?%#Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y lost @Econnection

C:;$#?;?%:Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y relocationcomplete timer e&ceed

C:;$#?;?%=Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y radiointerface fail

C:;$#?;%$# Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y OCinter'ention

C:;$#?;%$:Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y o'erloadcontrol

C:;$#?;%$=Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y RAB pre4empty

C:;$#?;%$2 Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y I@@P fail

C:;$#?;%$>Num(er of RNC initiate RAB release (y release re,uest for P5435PA (y @TRANgenerating

C:;$#?;%$ Num(er of failed RAB assignment setup in cell for C5 domain!failed in the Radio InterfaceProcedure

C:;$;;$:#% Num(er of failed RAB assignment setup in cell for C5 domain!TF@E@ING E&piry

C:;$;;$::$Num(er of failed RAB assignment setup in cell for C5 domain!Re,uested TraHc Class notA'aila(le

C:;$;;$::;Num(er of failed RAB assignment setup in cell for C5 domain!Re,uested Guaranteed Bit Ratenot A'aila(le

C:;$;;$::= Num(er of failed RAB assignment setup in cell for C5 domain!No Resource A'aila(le

C:;$;;$:=>Num(er of failed 35@PA RAB assignment setup in cell for P5 domain!In'alid RAB Parametersalue

C:;$;>P ser)ice +eit(er t(e originated call in t(e >P do-ain or t(e

ter-inated call in t(e >P do-ain.' 9ecase t(e UE does not spport t(e >P and

(ig(6speed PS ser)ice in t(e donlin, at t(e sa-e ti-e/ it directly replies it(RB

Setup 'ailure/ and t(e case )ale is unsupported configuration'

Co-pared it( t(e =C4M$ s3scri3er originating t(e >P ser)ice/ t(e ter-inating

s3scri3er resides in t(e ASM netor,/ and so it does not spport t(e >P ser)ice'

$fter #&C recei)es RAB Assignment Request/ t(e core netor, ill deli)er t(e

4isconnect co--and rig(t after call proceeding/ and t(e case )ale is Bearer

capa*ilit+ not autori-ed' $t t(is ti-e/ t(e UE (as st recei)ed t(e #9 SETUP

co--and and (as no enog( ti-e to finis( t(e #9 setp' So t(e UE ill reply it(

RB Setup 'ailure after it recei)es t(e 4isconnect co--and/ and t(e #&C ill replyit( RAB Setup 'ailure/ it( t(e case )ale 3eing failure in radio interface

procedure'

0,.,.,5 RA3 Set$) F"i%$re 3ec"$se t'e U$ Inter2"ce F"i%s to Set U) R3

#&C sends t(e #adio 9earer Setp co--and to t(e UE 3t fails to recei)e Radio

Bearer Setup Compete' T(is ,ind of sitation +#9 setp failre. often appears in t(e

cells it( ea, signals' T(ere are to cases of ea, signalsH one is t(at t(e UE does

not reside in t(e 3est ser)er to lanc( t(e access/ and t(e ot(er is poor co)erage'

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' ??


41/60


%f t(e UE does not reside in t(e 3est ser)er to lanc( t(e access/ it ill (ope to

enter t(e 3est ser)er t(rog( acti)e set pdate in t(e #9 setp process +$t t(e

sa-e ti-e/ t(e fast signal c(ange ill drastically ea,en t(e signals in t(e cell./ 3t

t(e acti)e set pdate can only 3e processed after t(e #9 setp is co-pleted/3ecase t(e procedres can not 3e processed alternately +&eit(er t(e netor, nor

t(e ter-inal spports it.' T(erefore/ #9 can only 3e set p in t(e cell it( ea,

signals/ and t(e setp is easy to fail' $s for t(is sitation/ t(e starting t(res(old and

speed of co6fre"ndo#ers

Missed neig(3oring cell configration/ pilot polltion/ i-proper soft (ando)er para-eter

configration/ and e


42/60


0,0,*,* So2t >"ndo#er O)ti&i1"tion F%o+c'"rt

;igre @61 Soft (ando)er opti-i2ation floc(art

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' ?5


43/60


ContersH

Number of failed active set update to add cell *ith failure causes

C:;$:###

## Num(er of failed acti'e set update to add cell!conguration unsupportedC:;$:####:

Num(er of failed acti'e set update to add cell!Physical Channel failed

C:;$:####=

Num(er of failed acti'e set update to add cell!Incompati(le5imultaneous Reconguration

C:;$:####2

Num(er of failed acti'e set update to add cell!Compress ode Error

C:;$:####>

Num(er of failed acti'e set update to add cell!Protocol Error

C:;$:####"rd >"ndo#er O)ti&i1"tion F%o+c'"rt

;igre @61? ard (ando)er opti-i2ation floc(art

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' @


50/60


ContersH

KPI Name Formula

300463Success Rate of Intra-RNCIntra-Frequenc !ar" !an"o#er

$$C%&'%%()'%*C%&'%%()()+-$C%&'%%()',*C%&'%%()')*C%&'%%()'*C%&'%%()'.*C%&'%%()'/*C%&'%%()'0*C%&'%%()&(*C%&'%%()&%*C%&'%%()(*C%&'%%()(.*C%&'%%()(/*C%&'%%()(0*C%&'%%()%'*C%&'%%()%&*C%&'%%()%,*C%&'%%()%)++1$C%&'%%()'%*C%&'%%()()+

300464Success Rate of Inter-RNCIntra-Frequenc 2ut3o4n3 !ar"!an"o#er

$C%&'%%(),.-$C%&'%%(),/*C%&'%%(),0*C%&'%%())'*C%&'%%())&*C%&'%%())(*C%&'%%())%*C%&'%%())*C%&'%%()).++1C%&'%%(),.

300465Success Rate of Intra-RNCInter-Frequenc !ar" !an"o#er

$$C%&'%%()&,*C%&'%%()%+-$C%&'%%()&)*C%&'%%()&*C%&'%%()&.*C%&'%%()&/*C%&'%%()&0*C%&'%%()('*C%&'%%()(%*C%&'%%()(,*C%&'%%()%.*C%&'%%()%/*C%&'%%()%0*C%&'%%(),'*C%&'%%(),&*C%&'%%(),(*C%&'%%(),)*C%&'%%(),++1$C%&'%%()&,*C%&'%%()%+

300466

Success Rate of Inter-RNC

Inter-Frequenc 2ut3o4n3 !ar"!an"o#er

$C%&'%%())/-

$C%&'%%())0*C%&'%%()'*C%&'%%()&*C%&'%%()(*C%&'%%()%*C%&'%%(),*C%&'%%().*C%&'%%()/++1C%&'%%())/

Counters for inter frequency failure

C310332548Nu56er of out3o4n3 4nter-RNC 4ntra frequenc 7ar" 7an"o#er #4a Iurfa48e"9conf43urat4on unsu::orte"

C310332549Nu56er of out3o4n3 4nter-RNC 4ntra frequenc 7ar" 7an"o#er #4a Iur fa48e"9;7s4ca8C7anne8 fa48e"

C310332550Nu56er of out3o4n3 4nter-RNC 4ntra frequenc 7ar" 7an"o#er #4a Iurfa48e"9Inco5:at468e S45u8taneous Reconf43urat4on

C310332551Nu56er of out3o4n3 4nter-RNC 4ntra frequenc 7ar" 7an"o#er #4a Iur fa48e"9Co5:ress


51/60


C310332542Nu56er of out3o4n3 4nter-No"e?94ntra-RNC 4nter frequenc 7ar" 7an"o#er fa48e"9Ce88>:"ate 2ccurre"

C310332543Nu56er of out3o4n3 4nter-No"e?94ntra-RNC 4nter frequenc 7ar" 7an"o#er

fa48e"94n#a84" conf43urat4on

C310332544Nu56er of out3o4n3 4nter-No"e?94ntra-RNC 4nter frequenc 7ar" 7an"o#erfa48e"9conf43urat4on 4nco5:8ete

C310332545Nu56er of out3o4n3 4nter-No"e?94ntra-RNC 4nter frequenc 7ar" 7an"o#er fa48e"9NoRe:8

C310332546Nu56er of out3o4n3 4nter-No"e?94ntra-RNC 4nter frequenc 7ar" 7an"o#er fa48e"92t7erCauses

C310332514 Nu56er of out3o4n3 4ntra-No"e? 4nter frequenc 7ar" 7an"o#er atte5:t

C310332515Nu56er of out3o4n3 4ntra-No"e? 4nter frequenc 7ar" 7an"o#er fa48e"9conf43urat4onunsu::orte"

C310332516Nu56er of out3o4n3 4ntra-No"e? 4nter frequenc 7ar" 7an"o#er fa48e"9;7s4ca8 C7anne8fa48e"

C31033251Nu56er of out3o4n3 4ntra-No"e? 4nter frequenc 7ar" 7an"o#er fa48e"9Inco5:at468eS45u8taneous Reconf43urat4on

C310332518Nu56er of out3o4n3 4ntra-No"e? 4nter frequenc 7ar" 7an"o#er fa48e"9Co5:ress "rd >"ndo#er O)ti&i1"tion Met'ods

T(e opti-i2ation flo for t(e (ard (ando)er is si-ilar to t(at of t(e soft (ando)er' T(e

-aor differences are in t(e para-eter opti-i2ation' To opti-i2e intra6fre


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fre


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Ta3le @6? Para-eters T(at A S(all Pro)ide to ?A

MCC MNC LACI(

CINCC 3CC

Fre8$ency!"nd

indic"tor

3CC>

@!0 0 1B? 0 0 B00 10

Co-plete ASM 9SC para-eter configration for t(e =C4M$ neig(3oring cellH T(e

?A syste- s(all pro)ide t(e A syste- it( t(e correct radio para-eters 3ased on

negotiation R MCC/ M&C/ $C/ #&C %4/ cell %4 +CN%4./ donlin, fre


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0,0,.,- Inter?RAT >"ndo#er O)ti&i1"tion F%o+c'"rt

;igre @61@ %nter6#$T (ando)er opti-i2ation floc(art

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' @7


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Conters

Number of failed outgoing CS inter-RA' handovers *ith failure causes

C:;$:2#%=>Num(er of failed outgoing C5 inter4RAT hando'ers!Conguration

unaccepta(leC:;$:2#%=$Num(er of failed outgoing P5 inter4RAT hando'ers!Congurationunaccepta(le-Cell Change Order.

C:;$:2#%>;Num(er of failed outgoing P5 inter4RAT hando'ers!Physical Channelfailed-Cell Change Order.

C:;$:2#%>#Num(er of failed outgoing P5 inter4RAT hando'ers!Protocol Error-CellChange Order.

C:;$:2#%>:Num(er of failed outgoing P5 inter4RAT hando'ers!@nspecied

failed-Cell Change Order.C:;$:2#%>=

Num(er of failed outgoing P5 inter4RAT hando'ers!No Reply-CellChange Order.

0,5 O)ti&i1"tion o2 Reso$rce Indic"tors

T(e resorce indicators directly reflect t(e syste- capacity' %ncreasing s3scri3ers ill

cons-e -ore syste- resorces and so-e resorces -ay 3e li-itedO for ea-ple/ t(e

code resorce -ay 3e li-ited/ t(e TCP access re


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$)erage non S4P$Code #esorceUtili2ation

16*P%?00806 *P%?00805 50G G

$)erage nonS4P$TCP Utili2ation #atio *P%?008B 50G G

U &oise rise *P%?008@06 P%?008@? 8d9 d9

S4P$ ser a)eraget(rog(pt

C?105@511+C?105@51?Ar.

?00,3ps ,3ps

S4P$ cell traffic)ol-e

C?105@511+10008. 1?5M9 M9

&ode 9 $)erage CEUtili2ation/ U

*P%?007B1 70G G

&ode 9 $)erage CEUtili2ation/ 4

*P%?007B? 70G G

Mai-- Utili2ation

#atio of Uplin, &ode9CE

C?108100?@ B0G G

Mai-- Utili2ation#atio of 4onlin,&ode9 CE

C?108100?8 B0G G

ZTE Confidential Proprietary 01! ZTE C"#P"#$T%"&' $ll rig(ts reser)ed' @B


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0,5,* Reso$rce Indic"tor O)ti&i1"tion F%o+c'"rt

;igre @615 #esorce indicator opti-i2ation floc(art



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0,5,- Code Reso$rce O)ti&i1"tion

T(e statistics of &-3er of reected ser)ices and 4C no code/ t(e a)erage code

resorce sage rate and t(e n-3er of t(e S4P$ s3scri3ers can 3e sed to dge

(et(er t(e code resorce in a cell is li-ited' %f t(e code resorce is li-ited/ yo can

adst t(e code resorce allocation to alle)iate t(e sitation'

9ased on t(e syste- algorit(-/ (en ;or-la 1 is satisfied/ yo can add an S6

P4SCO (en ;or-la is satisfied/ t(en an S6P4SC is deleted'

;or-la 1H "c#ate&ospdsc( "c#atespdsc( DpcCode0+ ? 51

;or-la H "c#ate&ospdsc( "c#atespdsc( CodeUpt0+A 51

"c#atespdsc(SP4SC -eans t(e n-3er of t(e codes of S;51 3loc,ed 3y t(e

S6P4SC/ "c#ate&ospdsc( -eans t(e n-3er of codes of S;51 3loc,ed 3y

ot(er c(annels/ 4pc(Codey -eans t(e n-3er of codes of S;51 reser)ed for t(e

4PC/ and CodeUpty$ is t(e t(res(old to decide (et(er to delete t(e SP4SC'

T(erefore/ to ensre t(e access of t(e #BB s3scri3ers/ yo can -a,e so-e adst-ent

according to Ta3le @ 6!(en t(e code resorce is li-ited/ t(og( t(e S4P$ rate -ay

decrease'

Ta3le @6! $dsting Code #esorce $llocation

A!!re#i"tion P"r"&etern"&e

R"nge"ndste)

C$rrent#"%$e

U)d"te#"%$e

Re&"r;

4pc(Codey4PC Codeysteresis

0''51 1! 8

To decrease t(en-3er of reectedser)ices for 4C nocode

CodeUpty$

CodeUpdateysteresis$

0''51 1! 8

To decrease t(en-3er of reectedser)ices for 4C nocode

0,5,. Monitoring CE Reso$rce

T(e CE resorce is -ainly -onitored t(rog( t(e -ai-- UE plin,donlin, sage

rate' %f t(ere is any pro3le-/ yo can sol)e it 3y controlling t(e load or adding -ore

3oards'



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0,5,0 O)ti&i1"tion o2 Po+er Contro%

0,5,0,* Monitoring "nd O)ti&i1ing (o+n%in; Po+er Contro%

i-ited TCP in 3sy (ors ill not only increase access failres and call drops in t(e

local cell 3t also increase soft (ando)er failres and call drops in t(e neig(3oring cells'

&-3er of reected ser)ices and 4C donlin, TCP li-it are intiti)e *P%s to dge

(et(er TCP is li-ited' $lt(og( li-ited plin, capacity and -assi)e UE -o)es in t(e

rs( (ors -ay also case call drops/ t(e li-ited TCP is a3soltely a ,ey factor'

9ased on t(e syste- algorit(- MinsdpaPoer +MinspaPr#to. &osPoer &ode

9/ if t(e safety t(res(old is sed +MinsdpaPoer -eans t(e poer reser)ed for SP$./

t(en it ill acti)ate t(e donlin, rate dongrade algorit(- flo for t(e congestion +loer

t(e donlin, 4C rate.' $lt(og( t(e rate dongrade can ensre access of so-e

s3scri3ers/ it is an irreglar action and ill degrade t(e perfor-ance'

0,5,5 S)eeding $) R"te (o+ngr"de

Considering t(at t(e cells it( (ea)y load reect -ore access re


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0,5, O)ti&i1"tion o2 U)%in; C")"city "t t'e W'o%e Net+or; Le#e%

C"seT(e plin, capacity as li-ited in a large n-3er of sites after t(e cto)er/ and

t(e sy-pto-s are a s(arp rise of #T=P and a (ig( call drop rate dring t(e rs( (ors'

$fter t(e folloing para-eters ere -odified as s(on in Ta3le @ 68/t(e pro3le- as

sol)ed'

Ta3le @68 Ea-ple of Poer Control Para-eter Modification

A!!re#i"tionP"r"&eter

n"&eR"nge

C$rrent#"%$e

U)d"te#"%$e

U%&%TS%#Uplin, %nitial S%#target +d9.

U ?'@ *1?'! *signaling/ U 1' *$M#

@65 ?'5

UM$LS%#Mai-- Uplin,S%# target +d9.

U ?'@ *1?'! *signaling/ U 1' *$M#

15 10

UlSirTarg4nStepUplin, S%#Target 4onStep Si2e +d9.

U ?'@ *1?'! *signaling/ U 1' *$M#

0'1 0'

0,5,B O)ti&i1"tion o2 U)%in; C")"city 2or " Sing%e Ce%%

$ lot of opti-i2ation -easres can 3e ta,en to 3ring don t(e rising #T=P' oe)er/

it( increasing s3scri3ers/ t(e capacity -ay still 3e li-ited in so-e area (ile frt(er-odification of SirTarget ill o3)iosly degrade t(e call

umts qos monitoring process

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