GSM RNO Subject-Application of the Co-BCCH (Concentric)Function_R3.0

8/11/2019 GSM RNO Subject-Application of the Co-BCCH (Concentric)Function_R3.0

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Application of the Co-BCCHFunction

R3.0

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Application of the Co-BCCH Function Internal Use Only

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Re)ision Histor*

+ro&uct ,ersion Document ,ersion erial #umber Reason for Re)ision

%#'" First pu*lished

iB+C ,'!"'!""f %!'"

The infor.ation ofhando)er/resource allocational(orith. and CA codin( has*een updated in the )ersion ofiB+C ,'!"'!""f'

%0'"The )ersions of the hando)erand resource allocational(orith.s are updated to iB+C,'!"'#$C'

Author

Date Document ,ersion +repare& b* Re)iee& b* Appro)e& b*!""1-"2-"$ %#'" Chen Chun Zhen( Hao

!"#"-"2-#0 %!'" Hou +huai Zhen( Hao

!"##-"0-!# %0'" Chan( Hai3ie Zhen( Hao

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"nten&e& au&ience' !% netork optimi/ation enineers

+roposal'Before rea&in this &ocument1 *ou ha& better ha)e the folloin knole&e an&skills.

2 nole&e an& skills Reference material

# %adio para.etersZXG10 iBSC (V6.20.61) Base StationController Radio Parameter Reference

! Perfor.ance countersZXG10 iBSC (V6.20.61) Base StationController Performance Counter Reference

0

Follo-up &ocument'After rea&in this &ocument1 *ou ma* nee& the folloininformation.

2 Reference material "nformation

# &ull &ull

!

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About This Document

ummar*

Chapter Description

# O)er)ie4 5escri*es the (eneral contents of the docu.ent'

! Hando)er and Channel AllocationAl(orith.s

5escri*es the hando)er and channel allocational(orith.s'

0 %e6uire.ents for the 7en(th 7i.itationsof the Fre6uencies in the 5ual Band Co-BCCH Cell

5escri*es the re6uire.ents for the len(th li.itationsof the fre6uencies in the dual *and Co-BCCH cell'

$ +u*cell Perfor.ance Analysis 5escri*es the su*cell perfor.ance analysis'

8 Cases on Confi(uration of Co-BCCHPara.eters

5escri*es thecases on confi(uration of Co-BCCHpara.eters'

Indicator Perfor.ance in 7ar(e-+caleUse of Co-BCCH

5escri*es the indicator perfor.ance in lar(e-scaleuse of co-BCCH'

AppA %adio Para.eters %ele)ant to Co-BCCH

5escri*es the radio para.eters rele)ant to co-BCCH'

AppB 9ud(.ent +tandard %elated to theCo-BCCH Threshold

5escri*es the 3ud(.ent standard related to the co-BCCH threshold'

AppC %ele)ant :As 5escri*es so.e :As rele)ant to co-BCCH'

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TAB7E OF CO&TE&T+

4 $)er)ie...........................................................................................................4#'# Introduction to the Concept of Co-BCCH'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''##'! Application +cenarios''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''##'!'# 5ual Band Co-BCCH Cell''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#'!'! %e6uire.ents for the ;ide Co)era(e''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#'!'0 Ho4 to Increase the Capacity of the +yste.''''''''''''''''''''''''''''''''''''''''''''''''''''''

5 Han&o)er an& Channel Allocation Alorithms..............................................6!'# Inter-+u*cell Hando)er Al(orith. in the +a.e Cell'''''''''''''''''''''''''''''''''''''''''''$

!'#'# Hando)er Al(orith. Based on Path 7oss/TA'''''''''''''''''''''''''''''''''''''''''''''''''''''!'#'! Hando)er Al(orith. Based on C/I''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''!'! Inter-Cell Hando)er Al(orith.''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''2!'!'# PBation of the &on-E.er(ency Hando)er'''''''''''''''''''''''''''''''!'0 Penalty of the Hando)er Failure'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''##!'$ TCH Allocation Al(orith.''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''##!'$'# Channel Allocation of the +u*cells in the Case of Assi(n.ent'''''''''''''''''''''''''!'$'! Channel Allocation of the +u*cells in the Case of Hando)er''''''''''''''''''''''''''''!'8 Influence on the 5yna.ic H% of CO-BCCH'''''''''''''''''''''''''''''''''''''''''''''''''''''#0!' P5TCH Allocation Al(orith.''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#0

!''# +u*cell Channel Allocation in the Case of the Initial Allocation''''''''''''''''''''''''!''! +u*cell Channel Allocation in the Case of the T+ %eallocation''''''''''''''''''''''''

3 Re7uirements for the Lenth Limitations of the Fre7uencies in the DualBan& Co-BCCH Cell.........................................................................................................480'# O)er)ie4 of the Principles''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#0'#'# ,ersions Earlier than iB+C ,'!"'!""f'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''0'#'! iB+C ,'!"'!""e and 7atter ,ersions''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''0'! Case''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#2

6 ubcell +erformance Anal*sis......................................................................49$'# Con(estion Counters'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#1

$'! Traffic Counters''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#1$'0 Counters %ele)ant to the +u*cell Hando)er''''''''''''''''''''''''''''''''''''''''''''''''''''!"

: Cases on Confiuration of Co-BCCH +arameters.......................................538'# +cenario #? =ost TA @ "'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''!08'! +cenario !? TA @ " Accounts for A*out 8"'''''''''''''''''''''''''''''''''''''''''''''''''''''!88'0 +cenario 0? Proportion of TA# E6uals to Proportion of TA #'''''''''''''''''''''!8

8 "n&icator +erformance in Lare-cale ;se of Co-BCCH.............................5e of the 4indo4 related to the 3ud(.ent is defined on *asis of ;nd'

The )alue of & related to the 3ud(.ent The )alue of P does not eKist'J is

defined on *asis of P*cchBls' In order to ensure that P*cchBls is )alidG the

para.eter Psi#%epPer .ust *e confi(ured as any )alue 4hich is at least ten

This is a constraint condition of the syste.G and it does not ha)e any actual

.eanin(s'J'

CurrentlyG the P5TCH occupied *y the su*scri*er is in su*cell !G and the )alue

of %Kle)G 4hich is calculated on *asis of the 4indo4 and the )alue of &G is nolar(er than P+A77OC+CL#' ThereforeG fro. the perspecti)e of %Kle)-*ased

T+ reallocation al(orith.G the re6uire.ents for the T+ reallocation to su*cell

# are satisfied'

CurrentlyG the P5TCH occupied *y the su*scri*er is in su*cell #G and the )alue

of %Kle)G 4hich is calculated on *asis of the 4indo4 and the )alue of &G is

e6ual to or lar(er than P+A77OC+CL!' ThereforeG fro. the perspecti)e of

%Kle)-*ased T+ reallocation al(orith.G the re6uire.ents for the T+

reallocation to su*cell ! are satisfied'

The T+ reallocation al(orith. *ased on TA?

For T+ reallocation al(orith. *ased on %Kle) and TAG the 3ud(.ent *ased on

%Kle) is .ade first' If the 3ud(.ent *ased on %Kle) is appro)edG TA update 4ill

*e started )ia the pollin(' After the TA updateG if it is found that TA also

satisfies the re6uire.entsG the T+ reallocation 4ill *e carried out for the

su*cells' If no Pacet Control Ac responds to the pollin( after the %Kle)-

*ased 3ud(.ent is appro)edG the TA 4hich is updated .ost recently 4ill *e

*orro4ed to *e in)ol)ed in the 3ud(.ent'

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;hether the TA threshold of P+-*ased T+ reallocation to su*cell # is satisfied

or not is defined on *asis of the *orro4ed Pa(Bl%esG and the si(n of the

3ud(.ent is VW'

;hether the TA threshold of P+-*ased T+ reallocation to su*cell ! is satisfied

or not is defined on *asis of the *orro4ed PrachBlsG and the si(n of the

3ud(.ent is XW'

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3 Re7uirements for the Lenth

Limitations of the Fre7uencies in theDual Ban& Co-BCCH Cell

3.4 $)er)ie of the +rinciples

3.4.4 ,ersions arlier than iBC ,8.50.500f

The fre6uencies confi(ured at O=C% are not distin(uished accordin( to their su*cell' All

of the. are put in the CA of the BT+ ta*le' +ince the syste. .essa(e # clarifies the

li.itations of the 6uantity of fre6uenciesG there are so.e constraint conditions for the

confi(uration of fre6uencies of the Co-BCCH cell su*cell # Q su*cell !J?

For syste. 4ith P


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For C+ ser)iceG CA in syste. .essa(e # cannot *e used in the channel

assi(n.ent of +u*cell! 4hile the fre6uency list carried *y the assi(n.ent

.essa(e and hando)er .essa(e can *e used'

For P+ ser)iceG CA 5irect Cipher =ode#J in syste. .essa(e # and indirect cipher

.ode o*tainin( fre6uency list fro. syste. .essa(e #0J cannot *e used in the

channel assi(n.ent of +u*cell! 4hile 5irect Cipher =ode !usin( the fre6uency

list carried *y assi(n.ent and T+ reallocation .essa(esJ can *e used'

Based on the chan(es to the iB+C )ersionsG the constraint conditions for +u*cell# and

+u*cell! are as follo4s?

For syste. 4ith P


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B+C , '#" series are used on site' Both 1""= and #""= adopt FH## the

fre6uency se6uence for 1""= is 21- fre6uenciesJ and that for #""= is 8-

!1 $$ fre6uenciesJ' The difference *et4een the .aK fre6uency A%FC& and the

.ini.u. fre6uency A%FC& is lar(er than 8#! 4ith fre6uency " eKcludedG

thereforeG the total len(th of FH se6uence &o' of fre6uenciesJof the dual-*and

su*cell shall *e no lar(er than #' The current fre6uency len(th in plannin( 4ell

eKceeds the FH se6uence len(th specified in syste.G 4hich leads to assi(n.ent

failure and *loc calls'

+olution

After the inspection and analysisG 4e should .ae ad3ust.ent to FH confi(uration

and FH se6uence len(th' The ad3ust.ent principles are as follo4s?

1""= .aintains FH##G fre6uency nu.*er in FH se6uence is

#""= FH .ode is chan(ed to #G fre6uency nu.*er in FH se6uence is 2'

After the fre6uencies are ad3usted accordin( to the a*o)e principlesG the pro*le. is

sol)ed'

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6 ubcell +erformance Anal*sis

Counters related to su*cells are under +u*cell +tatistical =easure.entW' ;hen

su*cells are confi(uredG the .easure.ent tas .easures the channels in su*cells

and hando)ers *et4een the su*cellsG and focuses on the traffic sharin( in +u*cell!

inner circleJ' For detailed introduction to the countersG please refer to the

correspondin( userSs .anual' This chapter .ainly introduces the counters related

to traffic analysis and su*cell hando)er' For Co-BCCHG 4hat 4e shall concern

a*out is 4hether the traffic sharin( *et4een the t4o su*cells is reasona*le'

Currently our syste. cannot directly output the situation of con(estion and traffic in

the t4o cells' ;e .ay te.porarily sol)e the pro*le. *y settin( up +u*cell

+tatistical =easure.entW' Fro. the .easure.ent dataG 4e .ay o*tain the statisticsof con(estion and traffic in the inner circle fro. perfor.ance reportsG 4e o*tain the

statistics of con(estion and traffic in the cell' ;e .ay o*tain data a*out the outer

circle *y .ain( su*traction *et4een the t4o sets of statistics'

6.4 Conestion Counters

The statistics for con(estion in the inner circle .ay *e o*tained fro. the follo4in(

counters in Ta*le $ -#'

Ta*le $-# Counters for Con(estion in the Inner Circle

Counter #o.Counter #ame

,5 ,3

C#!"00 C1"##0""$2&o' of TCH/F sei>ure failures in +u*cell!assi(n.entJ

C#!"0 C1"##0""8"&o' of TCH/F sei>ure failures in +u*cell!hando)erJ

C#!"01 C1"##0""80&o' of TCH/H sei>ure failures in +u*cell!assi(n.entJ

C#!"$! C1"##0""8 &o' of TCH/H sei>ure failures in +u*cell!hando)erJ

6.5 Traffic Counters

The statistics for traffic in the inner circle .ay *e o*tained fro. the follo4in( counters in

Ta*le $ -!'

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Ta*le $-! Counters for Traffic in the Inner Circle

Counter #o.Counter #ame

,5 ,3

C#!"$8 C1"##0""81 Total TCH/F *usy ti.e in +u*cell!

C#!"$ C1"##0""" Total TCH/H *usy ti.e in +u*cell!

6.3 Counters Rele)ant to the ubcell Han&o)er

CurrentlyG the inter-su*cell hando)er statisticsG statistics of causes of other inds of

out(oin( hando)er fro. su*cell !G direct inco.in( hando)er to su*cell ! statisticsG and

statistics of 4hether the su*cell pin(-pon( hando)er eKists can *e .ade' The en(ineers

can refer to the statistical results 4hile checin( 4hether the hando)er can *e .ade

nor.ally *et4een t4o su*cells and .ain( the traffic sharin( of t4o su*cells'

Ta*le $-0 7ist of Counters %ele)ant to the +u*cell Hando)er

Full #ame of Counters #o.

&u.*er of hando)er atte.pts fro. the first su* cell to the second su*cell

C1"##0"""8

&u.*er of hando)er eKecution fro. the first su* cell to the secondsu* cell

C1"##0"""

&u.*er of hando)er success fro. the first su* cell to the second su*cell

C1"##0"""2

&u.*er of hando)er atte.pts fro. the second su* cell to the first su*cell

C1"##0"""

&u.*er of hando)er eKecution fro. the second su* cell to the firstsu* cell

C1"##0"""1

&u.*er of hando)er success fro. the second su* cell to the first su*cell

C1"##0""#"

&u.*er of hando)er atte.pts in the second su* cell C1"##0""##

&u.*er of hando)er eKecution in the second su* cell C1"##0""#!

&u.*er of hando)er success in the second su* cell C1"##0""#0

&u.*er of out(oin( inter-cell hando)er atte.pts of the second su*cell

C1"##0""#$

&u.*er of out(oin( inter-cell hando)er eKecution of the second su*cell

C1"##0""#8

&u.*er of out(oin( inter-cell hando)er success of the second su* cell C1"##0""#

Hando)er atte.pts due to U7 recei)in( stren(th of the full rate secondsu* cell

C1"##0""#2

Hando)er atte.pts due to 57 recei)in( stren(th of the full rate secondsu* cell

C1"##0""#

Hando)er atte.pts due to U7 6uality of the full rate second su* cell C1"##0""#1

Hando)er atte.pts due to 57 6uality of the full rate second su* cell C1"##0""!"

Hando)er atte.pts due to PB


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Hando)er atte.pts due to traffic of the full rate second su* cell C1"##0""!!

Hando)er atte.pts due to U7 interference of the full rate second su*

cellon TCH/FJC1"##0""!0

Hando)er atte.pts due to 57 interference of the full rate second su*cellon TCH/FJ

C1"##0""!$

Hando)er atte.pts due to (ood CI of the full rate second su* cellonTCH/FJ

C1"##0""!8

Hando)er atte.pts due to *ad CI of the full rate second su* cellonTCH/FJ

C1"##0""!

Hando)er atte.pts due to path loss and too lar(e TA of the full ratesecond su* cellon TCH/FJ

C1"##0""!2

Hando)er atte.pts due to path loss and too s.all TA of the full ratesecond su* cellon TCH/FJ

C1"##0""!

&u.*er of forced transfer hando)er atte.pts of the full rate secondsu* cellon TCH/FJ

C1"##0""!1

Hando)er atte.pts due to other causes of the full rate second su* cell C1"##0""0"

Hando)er atte.pts due to U7 recei)in( stren(th of the half ratesecond su* cell

C1"##0""0#

Hando)er atte.pts due to 57 recei)in( stren(th of the half ratesecond su* cell

C1"##0""0!

Hando)er atte.pts due to U7 6uality of the half rate second su* cell C1"##0""00

Hando)er atte.pts due to 57 6uality of the half rate second su* cell C1"##0""0$

Hando)er atte.pts due to PB


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TCH/H of the first su* cell sei>ure success 4hen prefer the secondsu* cellused for hando)erJ

C1"##0""2!

&u.*er of inter-cell hando)er atte.pt to the second su* cell directlyfro. the cell in the sa.e site

C1"##0""20

&u.*er of inter-cell hando)er eKecution to the second su* cell directlyfro. the cell in the sa.e site

C1"##0""2$

&u.*er of inter-cell hando)er success to the second su* cell directlyfro. the cell in the sa.e site

C1"##0""28

&u.*er of inter-cell hando)er atte.pt to the second su* cell directlyfro. another site

C1"##0""2

&u.*er of inter-cell hando)er eKecution to the second su* cell directlyfro. another site

C1"##0""22

&u.*er of inter-cell hando)er success to the second su* cell directly

fro. another siteC1"##0""2

&u.*er of hando)er atte.pt to the second su* cell directly fro.another B+C

C1"##0""21

&u.*er of hando)er eKecution to the second su* cell directly fro.another B+C

C1"##0"""

&u.*er of hando)er success to the second su* cell directly fro.another B+C

C1"##0""#

&u.*er of hando)er to the first su* cell too fast after hando)er fro.another cell in the sa.e site

C1"##0""!

&u.*er of hando)er to the second su* cell too fast after hando)erfro. another cell in the sa.e site

C1"##0""0

&u.*er of hando)er to the first su* cell too fast after hando)er fro.another site

C1"##0""$

&u.*er of hando)er to the second su* cell too fast after hando)erfro. another site

C1"##0""8

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: Cases on Confiuration of Co-BCCH

+arametersT% po4er in +u*cell! drops *y $ dB' Analysis 4ith %=AJ of TA distri*ution statistics in

A*is interface si(nalin( su((ests that Co-BCCH cell falls into t4o scenarios?

If user TA is e6ually distri*uted 4ithin the cellSs ser)ice ran(eG 4e .ay *alance the

traffic in the inner circle throu(h settin( TA' ;ith the assistance of hando)er

al(orith. *ased on path lossG hando)er to the inner circle can *e perfor.ed 4hen

the si(nal is (oodG and hando)er to the outer circle can *e perfor.ed in ti.e 4hen

the si(nal 6uality deteriorates'

;hen users are centered around the site .ost TA@"JG settin( of TA is not useful in

*alancin( the traffic' In such caseG 4e need to use path loss and li.it the inner

circleSs ser)ice ran(e 4ith the hando)er al(orith.s *ased on path lossG in order to

reach traffic *alance'

:.4 cenario 4' %ost TA 0

Case #

Fi(ure 8-0 TA 5istri*ution of a Co-BCCH Cell

The +u*CellTA.in/+u*CellTA.aK of the cell is chan(ed fro. 0/8 to #/0G and here is a

co.parison of traffic *efore and after the ad3ust.ent'

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+Lmin> +Lma?"nner CircleTraffic rlE

$uter CircleTraffic rlE

+ercentae of "nnerCircle Traffic

##/#! $'!1 #'!$ 22'8

##0/#!0 !'1$ !'#$ 82'2

:.5 cenario 5' TA 0 Accounts for About :0

Case 0

Fi(ure 8-8 TA 5istri*ution of a Co-BCCH Cell

Ori(inal confi(uration? +u*CellTA.in @ 0G +u*CellTA.aK @ $

=odified confi(uration? +u*CellTA.in @ #G +u*CellTA.aK @ 0

A co.parison of traffic .i(ration *efore and after the .odification?

"nner Circle

Traffic rlE

$uter Circle

Traffic rlE

+ercentae of "nner

Circle TrafficBefore Ad3ust.ent $1'$ !"'2$ 2"'$

After Ad3ust.ent $#'0 00'2 88'#!

:.3 cenario 3' +roportion of TA G 4 7uals to+roportion of TA 4

Case $

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Fi(ure 8- TA 5istri*ution of a Co-BCCH Cell

Ori(inal confi(uration? +u*CellTA.in @ 0G +u*CellTA.aK @ 8

=odified confi(uration? +u*CellTA.in @ !G +u*CellTA.aK @ $

A co.parison of traffic .i(ration *efore and after the ad3ust.ent?

"nner CircleTraffic rlE

$uter CircleTraffic rlE

+ercentae of "nnerCircle Traffic

Before Ad3ust.ent '# 8'"$ #'$After Ad3ust.ent '# '28 $2'$2



36/52


8 "n&icator +erformance in Lare-cale

;se of Co-BCCH

8.4 "nformation of the oftare ,ersionoftare n)ironment ?planation

iO=C% iO=C% ,'!"'!""e

O=CB O=CB ,$'""'!"" p""0

iB+C iB+C ,'!"'!""e p""!

=I&O+ ,$'#"'$0"d p""!

+5% +5% ,$'""'!#"e p"2

8.5 "nformation of the Har&are n)ironmentHar&are n)ironment ?planation

C& .anufacturer ZTE

The type of B+C hard4are #"""= platfor.

The physical lin on A interface IPA

The physical lin on


37/52


#o. nlish #ame ,alue of +romonte

#$ Po4erClass 0

8.6 Clarification of Comparison beteen "n&icators

+ince it is not possi*le to .odify the radio para.eters of the net4or rando.lyG the

co.parison is *et4een the .a3or DPIs of the Co-BCCH cells and those of the non

Co-BCCH cells of the net4or' It should *e noticed that it is not a co.parison for

the sa.e (roup of cells in t4o different situations 4here the Co-BCCH function is

ena*led first and then is disa*led'

The co.parison here is *ased on the indicators of the third 4ee 2M!$ hours J

after the replace.ent is finished'

In this net4orG only of the cells are Co-BCCH cells' In order to a)oid the

influence fro. the 4orst cells as .uch as possi*leG ei(ht cells of non Co-BCCH

partG 4hich are the 4orstG are filteredG and t4o cells of Co-BCCH part are filtered

*efore the indicators are co.pared'

The con(estion rate indicators are in)ol)ed in the traffic distri*utionG so it is not

necessary to .ae a reference to those indicators'

The replace.ent of the net4or is 3ust finishedG and the centrali>ed DPI

opti.i>ation has not *een done yetG so the results of the co.parison is only for

your reference and they cannot *e taen as a (uidance on DPI : Y A'

8.: Rele)ant +" Formulas+" Formulas

U7 :uality 2 +hare

C1"""""2!QC1"""""20J/C1"""""QC1"""""2QC1"""""QC1"""""1QC1"""""2"QC1"""""2#QC1"""""2!QC1"""""20J

57 :uality 2 +hare

C1""""""QC1"""""#J/C1"""""2$QC1"""""28QC1"""""2QC1"""""22QC1"""""2QC1"""""21QC1""""""QC1"""""#J

U7 :uality "# +hare

C1"""""QC1"""""2J/C1"""""QC1"""""2QC1"""""QC1"""""1QC1"""""2"QC1"""""2#QC1"""""2!QC1"""""20J



38/52


+" Formulas

57 :uality "# +hare

C1"""""2$QC1"""""28J/C1"""""2$QC1"""""28QC1"""""2QC1"""""22QC1"""""2QC1"""""21QC1""""""QC1"""""#J

+5CCH assi(n.ent +uccess%ate

C1""""!$!/C1""""!$#

TCH Assi(n.ent +uccess%ate

#-C1"""""!1QC1"""""02QC1""""!""QC1""""!##J/C1"""""#1QC1"""""0"QC1"""""$!QC1"""""$QC1"""""!#QC1"""""0!QC1"""""$QC1"""""$$J

TCH Con(estion %ateEKcludin( Hando)erJ

C1"""""!"QC1"""""0#QC1"""""$0QC1""""

"$2J/C1"""""#1QC1"""""0"QC1"""""$!QC1"""""$J

Hando)er +uccess %ate

C1"""""1QC1""""#"!QC1""""#!"QC1"""""1$QC1"""""1J/C1"""""12QC1""""!#0QC1""""!#$QC1""""!#8QC1"""""11QC1""""#""QC1""""#"#QC1""""!#QC1""""##1QC1"""""10QC1"""""18J

Inter-cell Hando)er +uccess%ate

C1"""""1QC1""""#"!QC1"""""1$QC1""""

"1J/C1"""""12QC1""""!#0QC1""""!#$QC1""""!#8QC1"""""11QC1""""#""QC1""""#"#QC1""""!#QC1"""""10QC1"""""18J

+5CCH 5rop %ate C1"""""80/C1""""""$

TCH Call 5rop %ate EKcludin(Hando)erJ

C1"""""8$QC1"""""88J/C1"""""!QC1"""""0QC1""""#11QC1""""!#"J

57 TBF Esta*lish.ent+uccess %ate

C1"""$"""2QC1"""$""#8QC1"""$"""QC1"""$"

"#QC1"""$"##"-C1"""$"###JQC1"""$"##-C1"""$"##2JQC1"""$"##!-C1"""$"##0JQC1"""$"##-C1"""$"##1JQC1"#"""""#QC1"#""""!0J/C1"""$"#$#QC1"""$"#$!QC1"""$"#$0QC1"""$"#$$QC1"""$"#$8QC1"""$"#$QC1"""$"#$2QC1"""$"#$QC1"""$"##"QC1"""$"##QC1"""$"##!QC1"""$"##QC1"#"""""#Q C1"#""""!0J

U7 TBF Esta*lish.ent+uccess %ate

C1"""$""!8QC1"""$""00QC1"""$""!QC1"""$""0$QC1"""$"#!$-C1"""$"#!8JQC1"""$"#0!-C1"""$"#00JQC1"""$"#!!-C1"""$"""#!0JQC1"""$"#0"-C1"""$"#0#JQC1"#"#"""#QC1"#"#""!!J/

ZTE Confidential Proprietary !"#$ ZTE CO%PO%ATIO&' All ri(hts reser)ed' 0"


39/52


+" Formulas

C1"""$"#81QC1"""$"#"QC1"""$"##QC1"""$"#QC1"""$"#0QC1"""$"#$QC1"""$"#8QC1"""$"#QC1"""$"#!$QC1"""$"""#0!QC1"""$"""#!!QC1"""$"""#0"Q C1"#"#"""#QC1"#"#""!!J

8.8 Comparison Results of the "n&icators+" Co-BCCH non Co-BCCH

U7 :uality 2 +hare "'$! "'$1

57 :uality 2 +hare "'1$ #'"!

U7 :uality "# +hare 1'$ 1'""

57 :uality "# +hare 18'1# 18'80

+5CCH assi(n.ent +uccess %ate 11'!$ 12'"

TCH Assi(n.ent +uccess %ate 11'" 11'#

TCH Con(estion %ate EKcludin( Hando)erJ "'"" "'"!

Hando)er +uccess %ate 1'$$ 1'1#

Inter-cell Hando)er +uccess %ate 12' 1'1"

+5CCH 5rop %ate "'"# "'"2

TCH Call 5rop %ate EKcludin( Hando)erJ "'0 "'81

57 TBF Esta*lish.ent +uccess %ate 1'" 1#'21

U7 TBF Esta*lish.ent +uccess %ate 11'$0 1'$0

The co.parison of the indicators sho4s that the a)era(e )alues of all the indicators of

the cells 4here Co-BCCH is ena*led are as satisfyin( as or .ore satisfyin( than those

of the cells 4here Co-BCCH is not ena*led' Ho4e)erG it should *e noticed that all the

Co-BCCH sites are those in the dense ur*an areas of the capital and they ha)e a (ood

co)era(e' Ho4e)erG so.e of the non Co-BCCH sites are isolated sites or su*ur*an

sites' BesidesG the altitudes of different areas in the su*ur* )ary (reatly and the

continuity of the co)era(e is not (ood there' ThereforeG it can not *e concluded that the

perfor.ance indicators can *e i.pro)ed 4hen the Co-BCCH function is ena*led'

Ho4e)erG the indicators here sho4 that at least they 4ill not deteriorate 4hen Co-BCCH

function is ena*led' +o Co-BCCH can *e ena*led for the co..ercial net4ors 4ithout

any riss'

ZTE Confidential Proprietary !"#$ ZTE CO%PO%ATIO&' All ri(hts reser)ed' 0#


40/52


AppA Ra&io +arameters Rele)ant to Co-BCCH

+u*cellUsed It indicates 4hether the cell uses the su*cell structure'

5escription? It indicates 4hether the cell uses the su*cell structure'

,alue ran(e? "? &o #? Nes

Fre6Band The fre6uency *and of su*cell #

5escription? The fre6uency *and of su*cell # refers to the fre6uency *and 4here all

the fre6uencies used *y su*cell # are'

,alue ran(e? +ee Ta*le -$'

Ta*le -$ ,alue %an(e of the Fre6uency Band

,alue Rane ?planation

" P-


41/52


5escription? This para.eter defines t4o hando)er .odes of su*cell hando)er

al(orith.? Hando)er *ased on C/IG hando)er *ased on path loss and TA'

,alue ran(e? "? Hando)er *ased on C/I #? Hando)er *ased on path loss and TA

5efault )alue? "

#ote'

HoControl The concentric hando)er is supported'J is used to control 4hether the

function of intelli(ent concentric circle is ena*led an old conceptJ' This para.eter is

in)alid'

Path7oss=aK The =A of path loss

5escription? It is one of the su*cell hando)er para.etersG and it indicates the

.aKi.u. path loss'

,alue ran(e? "#8" dB

5efault )alue? #!

#ote'

The 3ud(.ent standard is VW'

Path7oss=in The =I& of path loss


.ini.u. path loss'

,alue ran(e? "#8" dB

5efault )alue? #!"

#ote'

The 3ud(.ent standard is XW'

+u*CellTA=aK The =A of ti.e ad)ance


.aKi.u. ti.e ad)ance'

ZTE Confidential Proprietary !"#$ ZTE CO%PO%ATIO&' All ri(hts reser)ed' 00


42/52


,alue ran(e? "0

5efault )alue? #

#ote'

The 3ud(.ent standard is W'

+u*CellTA=in The =I& of ti.e ad)ance


.ini.u. ti.e ad)ance'

,alue ran(e? "0

5efault )alue? "

#ote'

The 3ud(.ent standard is RW'

+u*cell& Its full na.e is & )alue of su*cell hando)er' It is one of the conditions

used to decide the inter-su*cell hando)er'

5escription? For the latest & )alues of the a)era(e )alues of su*cell hando)er

sa.plesG if +u*cellP P )alues of the su*cell hando)er para.eterJ of the +u*cell&

)alues satisfy the conditionG then perfor. a hando)er'

,alue ran(e? ##"

5efault )alue? $

+u*cellP Its full na.e is P )alue of su*cell hando)er' It is one of conditions used to

decide the inter-su*cell hando)er

5escription? For the latest & )alues of the a)era(e )alues of su*cell hando)er

sa.plesG if +u*cellP P )alues of the su*cell hando)er para.eterJ of the +u*cell&

)alues satisfy the conditionG then perfor. a hando)er'

,alue ran(e? ##"

5efault )alue? 0


43/52


5escription? If the pa(in( is on the co..on layer T% fre6uency and P of the latest

& C/I )alues raise a*o)e the (ood C/I thresholdG then perfor. a hando)er fro. the

co..on layer T% fre6uency to the special layer T% fre6uency' The cause for

the hando)er is


44/52


BadCi& ,alue & BadCi&J of the special layer T% fre6uency 4hen there is an

out(oin( hando)er

5escription? Please refer to BadCiThs'

,alue ran(e? #0#

5efault )alue? 0

BadCiP ,alue P BadCiPJ of the special layer T% fre6uency 4hen there is an

out(oin( hando)er

5escription? Please refer to BadCiThs'

,alue ran(e? #0#

5efault )alue? !

Po4erClass The po4er le)el of the correspondin( T%

5escription? This para.eter can confi(ure the po4er le)el of the carrierG 4hich can

*e con)erted to the actual po4er' It is used to calculate path loss and CI )alue in

the .easure.ent report'

,alue ran(e? # indicatin( $1 d*G $ d*G $ d*G $0 d*G $" d*G $ d*G $ d*G and

$ d* respecti)elyJ

5efault )alue? 0 indicatin( $ d*J

+UBCE77HO Inter su*cell hando)er per.itted

5escription? This para.eter defines 4hether the direct hando)ers *et4een the

second su*cells of the sa.e site are allo4ed'

,alue ran(e? "? &o #? Nes !? 5epend on radio .easure.ent

5efault )alue? #G and the reco..ended )alue is !'

#ote'

This para.eter is a BT+ para.eterG and it *eco.es )alid fro. the )ersion iB+C

,'!"'!""f' In the )ersion of iB+C ,'!"'#0G this para.eter is set to !'

HOTOI&&E%+C inter +ite hando)er to +u*cell! per.ittedJ

5escription? This para.eter indicates 4hether it is allo4ed to perfor. hando)er

fro. other sites includin( the sites of eKternal B+CJ to the su*cell ! of this cell'



45/52


,alue ran(e? "? &o #? Nes

5efault )alue? "G and the reco..anded )alue is #'

#ote'

This para.eter is )alid in the )ersion of iB+C ,'!"'#0 and later )ersions'

T+CPin(Pan( +u*cell Pin(Pon( hando)er ti.er

5escription? This para.eter indicates a ti.e period after a su*cell hando)erG in

4hich the =+ is handed o)er *et4een su*cells fre6uentlyG for eKa.pleG the =+ is

handed o)er *ac and forth *et4een t4o su*cells 4ithin the sa.e B+CG or the =+

is handed o)er *ac and forth *et4een t4o su*cells *et4een t4o B+Cs' The fastinter-su*cell hando)ers are counted in the perfor.ance report'

,alue ran(e? !"''#"""G unit is #"" .s

5efault )alue? #""G that is to sayG #" s

=+TP;%=A +u*cell ! =A po4er le)el of =+ 4ith po4er controlJ

5escription? The .aKi.u. trans.ission po4er of the =+ initial access of su*cell !

,alue ran(e? "''0#

5efault )alue? ;hen the fre6uency *and of su*cell ! is 1"" =G the )alue is " 4hen

the fre6uency *and of su*cell ! is #"" =G the )alue is 8'

P+A77OC+CL" P+ channel allocation su*cell choice

5escription? ;hen the confi(uration of su*cells is co.pletedG the channel

reallocation strate(y of the P+ ser)ice of the su*cells can *e controlled )ia this

para.eter' There are three options? Priority su*cell #G priority su*cell !G only su*cell

#

,alue ran(e? "? Priority su*cell # #? Priority su*cell ! !? Only su*cell #

5efault )alue? Priority su*cell #

#ote'

This para.eter *eco.es )alid fro. the )ersion iB+C ,'!"'!""f p""!'

P+A77OC+CL# The le)el threshold of su*cell # allocated *y P+ channel



46/52


5escription? ;hen the confi(uration of su*cells is co.pletedG this para.eter can

control the le)el threshold for choosin( su*cell # 4hen the channel reallocation of

P+ ser)ice starts' If the P+ channel is at su*cell ! and the le)el is s.aller than or

e6ual to P+A77OC+CL# and TA )alue is lar(er than or e6ual to Pa(Bl%es This

field is *orro4ed *y the )ersion of iB+C ,'!"'!""f'JG it is necessary to transfer to

su*cell #'

,alue ran(e? " 0

"? R -##" dB.

#? -##" dB. -#"1 dB.

!? -#"1 dB. -#" dB.

'''

!? -$1 dB. -$ dB.

0? -$ dB.

5efault )alue? "

#ote'


P+A77OC+CL! The le)el threshold of su*cell ! allocated *y P+ channel

5escription? ;hen the confi(uration of su*cells is co.pletedG this para.eter can

control the le)el threshold for choosin( su*cell ! 4hen the channel reallocation of

P+ ser)ice starts' If the P+ channel is at su*cell # and the le)el is lar(er than or

e6ual to P+A77OC+CL! and TA )alue is s.aller than or e6ual to Pa(Bl%es This

field is *orro4ed *y the )ersion of iB+C ,'!"'!""f'JG it is necessary to transfer to

su*cell !'

,alue ran(e? " 0

"? R -##" dB.

#? -##" dB. -#"1 dB.

!? -#"1 dB. -#" dB.

'''

!? -$1 dB. -$ dB.

0? -$ dB.

5efault )alue? 0



47/52


#ote'


;nd The si>e of the slidin( 4indo4 4here the .easure.ent reports are ept

5escription? ;hen the su*cells are confi(uredG this field can *e used to decide

4hether CL)alue calculated on *asis of P+A77OC+CL# and P+A77OC+CL!

satisfies the re6uire.ents of the 4indo4 si>e 4hen the le)el threshold of the T+

reallocation is reached'

,alue ran(e? #

5efault )alue? $

#ote'

The )ersion iB+C ,'!"'!""f p""! *orro4s this field first'

P*cchBls PBCCH reser)ed *locs

5escription? ;hen the su*cells are confi(uredG this field can *e used to decide

4hether CL)alue calculated on *asis of P+A77OC+CL# and P+A77OC+CL!

reaches the )alue of & 4hen the le)el threshold of the T+ reallocation is reached'

,alue ran(e? "0 correspondin( to the )alue of & @ $G #G !G 0 respecti)elyJ

5efault )alue? 0

#ote'


Pa(Bl%es PA


48/52


#ote'


PrachBls P%ACH reser)ed *locs

5escription? ;hen the su*cells are confi(uredG this field is used to chec 4hether

the TA threshold of the P+-*ased T+ reallocation is reached so as to enter su*cell

!' The 3ud(.ent standard is XW'

,alue ran(e? "#8

5efault )alue? !

#ote'


ZTE Confidential Proprietary !"#$ ZTE CO%PO%ATIO&' All ri(hts reser)ed' $"


49/52


50/52


AppC Rele)ant 2As

#' ;hy the inter-su*cell hando)er cannot *e tri((ered after the co-BCCH function is

ena*led

i' The en(ineers should confir. the s4itch of B+C intra-cell hando)er ena*le

the HoIntraEna*le para.eterJ is turned on'

ii' The en(ineers should confir. the selected su*cell hando)er al(orith.s are

Pathloss and TA al(orith.s'

iii' The en(ineers should confir. that the )alue of the TA=I& para.eter is not "

and the inco.in( hando)er to su*cell ! can *e .ade'

i)' The en(ineers should chec 4hether the Pathloss and TA thresholds are

properly set'

)' The en(ineers should chec 4hether the settin( of the Po4erclass para.eter

is consistent 4ith the actual T% trans.ission po4er the +5% po4er set on

the O=CBJ'

!' ;hy the success rate of the inco.in( hando)er to su*cell ! is lo4 after the co-

BCCH function is ena*led

i' The en(ineers should chec 4hether the =+TP;%=A para.eter in the

po4er control para.eters is properly set' If the fre6uency *and of su*cell ! is

#"" =G the para.eter should *e set to " if the fre6uency *and of su*cell ! is

1"" =G the para.eter should *e set to 8'

ii' The en(ineers should chec 4hether the inco.in( hando)er to su*cell ! is

started 4hen the su*cell si(nals are 4ea *ecause of loose settin(s of

Pathloss and TA thresholds'

iii' The en(ineers should chec the U7 and 57 lin *alancin( condition and

4hether the hard4are and antennas are 4ron(ly connected'

0' ;hy the effect of traffic *alancin( *et4een t4o su*cells is poor after the co-BCCH

function is ena*led

i' In the condition of dual-*and cellG the en(ineers should chec 4hether the

5uleBandOffset para.eter is properly set' If the )alue of this para.eter is set

to *e s.allG the out(oin( PB


51/52


su*cell # and then handed o)er to su*cell ! throu(h the inter-su*cell

hando)er and then the load of su*cell # 4ill *e hea)ier'

iii' The en(ineers should chec the co)era(e ran(e difference and user

distri*ution of the t4o su*cells' If the users location is out of the co)era(e

ran(e of su*cell !G the su*cell ! cannot share the traffic no .atter ho4 the

para.eters are ad3usted' In this conditionG the only 4ay to sol)e this pro*le.

is to increase the su*cell ! co)era(e'

i)' The en(ineers should chec 4hether the difficult inco.in( hando)er to su*cell

! is difficult and 4hether the pin(-pon( hando)er that leads to poor traffic

sharin( effect are caused *y i.proper Pathloss and TA threshold settin(s or

i.proper settin(s of other hando)er thresholds such as hi(h e.er(ency U7

%Kle) thresholdJ'

$' ;hat are the co..on co-BCCH hando)er para.eter confi(uration .ethods and

their influences

i' The synchroni>ed ad3ust.ent of the Path7oss=aK para.eter and

Path7oss=in para.eter can chan(e the traffic sharin( of su*cells' The )alues

of the t4o para.eters should *e increased or decrease si.ultaneously and

the difference should *e ept unchan(ed'

ii' The increase and decrease of the difference of the )alues of the Path7oss=aK

para.eter and Path7oss=in para.eter can affect the co-BCCH inter-su*cell

hando)er fre6uency' The s.aller the difference isG the .ore fre6uent the

hando)er is' It is su((ested to set the difference in the ran(e fro. [ #"'

iii' The settin( of the )alue of the 5uleBandOffset para.eter has li.ited influence

on the traffic distri*ution *et4een su*cells' Ho4e)erG it affects the nu.*er of

PB


52/52


)i' The .odification of the co-BCCH inter-su*cell hando)er para.eter can affect

the inter-su*cell hando)er of this cell as 4ell as inter-cell hando)er' 5urin( the

on-site para.eter chan(in(G it is necessary to o*ser)e the out(oin( hando)er

condition to )erify the .odifyin( result'

)ii' The .odification of rele)ant para.eters of co..on hando)er typesG such as

e.er(ency %Kle) hando)er threshold and &/P )alue and =ar(in )alue or &/P

)alue of the PB

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GSM RNO Subject-Application of the Co-BCCH (Concentric)Function_R3.0

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