Feature Implementation Guide - CELL PCH

8/20/2019 Feature Implementation Guide - CELL PCH

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CELL-PCH Feature ImplementationGuild in 3G Network

Issue 1.00

Date 2011-10-27

2013-8-8 HUAWEI Confidential Page i, Total 19



CELL-PCH eat!"e I#$le#entation in 3% &et'o"( Inte"nal

About This Document

Author

Prepared by )ia$eng*! Date 2011-10-22

Reviewedby Date

Reviewedby

Approvedby

Date

Summary

T+i do!#ent inl!de t+e Cell PCH feat!"e la!n+ing g!ild and i!e +andling.

2013-8-8 HUAWEI Confidential Page 2, Total 19




Content

A!t+o"...........................................................................................................................................................................2

!##a"*.......................................................................................................................................................................2

1. Introduction of CellPC!..............................................................."

1.1. /enefit of Cell PCH feat!"e in !""ent 3% net'o"(........................................................................................... ..

1.2. Cell-PCH eat!"e Int"od!tion...............................................................................................................................

1.2.1. CELL-PCH efination.......................................................................................................................................

1.2.2. CELL-PCH 'o"(ing alg"ait+#.........................................................................................................................

#. Data Confi$uration of C%&&'PC!....................................................(

2.1. &C Config!"ation.................................................................................................................................................

2.2. CELL Config!"ation...............................................................................................................................................7

2.3. ee"4ed Pa"a#ete" Config!"ation.........................................................................................................................9

). *eature Testin$ and +erification..................................................1,

3.1. Tet ae................................................................................................................................................................10

". -PI Impact after C%&&'PC! %nabled.............................................11

.1. 5PI I#$at and 6eg"adation...................................................................................................................... ......... .11

.1.1. eloation P"e$a"ation !e ate 6e"eaed.............................................................................................11

.1.2. P Idle ode Paging 6eg"adation..................................................................................................................12

.1.3. &C H6PA 62H Ine"eaed W+en &C i 12PC............................................................................13

.1.. &C Call 6"o$ ate 6eg"adation...................................................................................................................1

.2. 5PI o"#!la C+ange afte" CELL-PCH I#$le#entation................................................................................ .....1





1. Introduction of CellPC!

1.1.enefit of Cell 'PC! feature in current )/networ0

T+e &C and o"e a$ait* i +angeling 'it+ ignaling to"# "i( '+i+ i a!ed :* t+e ;!i(l*g"o'ing #a"t $+one in 3% net'o"(. W+en t+e a$$liation i in !e, o#eti#e t+e !e" i doingnot+ing at all. <o" ea#$le, 'aiting fo" #eage o#ing '+en !ing &=.

6!"ing t+e ti#e de"i:ed a a:o4e, UE 'ill end >Hea"t /eat? #eage to info"# t+e AP e"4e" t+att+e a$$liation i till on.

To ol4e t+i "i(, 3% A& $a"t an ena:le Cell-PCH to "ed!e t+e ignaling load and #ean'+ile,"ed!e t+e PU and %@U :oa"d load.

1.#.CellPC! *eature Introduction.

1.#.1. C%&&PC! *efination

In 3%PP, t+e"e a"e fo!" C onneted tate fo" UE inl!ding UAPCH, CELLPCH,CELLACH, and CELL6CH. &o"#all* Cell-PCH #ode i o$tional fo" 3% net'o"(, /elo' i :ai info"#ation of CEL-PCH

CELL_PCH (Paging Channel). T+i i an o$tional C tate. If t+e"e a"e do'nlin( $a(et fo"

t+e te"#inal, t+e te"#inal 'ill :e $aged. In t+i tate, t+e te"#inal i not a:le to end o" "eei4e

$a(et, :!t t+e te"#inal 'ill +a4e to ente" eit+e" t+e CELL6CH o" CELLACH tate to end o"

"eei4e. &ot all net'o"( i#$le#entation !""entl* !e t+e CELLPCH tate.

1.#.#. C%&&PC! wor0in$ al$raithm

Cell !$date $"oed!"e i "e;!i"ed fo" CELLPCH #ode to (ee$ C onnetion ali4e.

2013-8-8 HUAWEI Confidential Page , Total 19




W+ene4e" UE need to do a ell !$date ACH 'ill :e !ed <CELL UP6ATE eage 'ill end !ing

o##on +annel=.

If UE need to t"anfe" data, t+e Cell U$date #eage 'ill end to 'it+ !$date "eaon >U$lin( data

T"an#iion?

T+e &C 'ill end t+e CELLUP6ATEC@&I #eage to "eonfig!"e t+e / to ente" t+e UE

to CELLACH #ode to t"anfe" UL data.

If t+e"e an* data t"anfe" on 6L, t+e &et'o"( 'ill info"# :* PICH to #a(e a ell !$date and t+e

!$date "eaon i Paging e$one.

T+e &C 'ill end t+e CELLUP6ATEC@&I #eage to "eonfig!"e t+e / to ente" t+e UE

to CELLACH #ode to t"anfe" 6L data to UE.

In CELLPCH #ode UE i (no'n to Cell le4el in &C, o all t+e $aging #eage 'ill end to

$a"ti!la" ell onl* < &ot to '+ole LAC a in Idle #ode=. o &C +o!ld (no' if UE +ange

a#$ing ell :* ell "eeletion $"oed!"e. To info"# t+e ne' ell a#$ed, UE 'ill end Cell U$date

#eage 'it+ !$date "eaon >Cell e-eletion?.

/elo' i tat! t"an#itting diag"a# of CELL PCH and CELLACH, CELL-6CH.





#.Data Confi$uration of C%&&'PC!

#.1.RC Confi$urationBelow is the configuration in RNC side.

1. Run the A !R"FAC!#R and "# A$"AP commands in sequence to change the Iu-PSactivation factor. The recommended value for the activation factor is 10%. If the configured Iu-PSactivation factor is smaller than 10%, retain the configured value.

To avoid the admission failure on the Iu-PS interface due to the increase of UEs in E!!"P# orU$"P# state, change the Iu-PS activation factor.

&& T$'(T)$* (TI+1, $E'$+IUPS, PS)/&!+10, PS)/U!+10,PSST$'&!+10, PSST$'U!+10, PSI/TE$&!+10, PSI/TE$U!+10, PS2&!+10,PS2U!+10, #&S$&!+10, #&SIP&!+10, #&)IE&!+10, #&)/&!+10,#&ST$'&!+10, #&I/TE$&!+10, #&2&!+10, #US$U!+10, #USIPU!+10,#U)IEU!+10, #U)/U!+10, #UST$'U!+10, #UI/TE$U!+10, #U2U!+103

')& &4'P* /I+1500, IT(T+IUPS, T'I2!&+60, T'IS!+60, T'I$7+60, (TI+13

')& &4'P* /I+1501, IT(T+IUPS, T'I2!&+60, T'IS!+60, T'I$7+60, (TI+13

%. Ena&le the CCC and 'tate tran'it 'wit(h

SET U)$$'!2)S8IT#* &raS9itch+&$"&"S8IT#-1:&$"#S&P"STTE"T$/S"S8IT#-1:&$"#SUP"STTE"T$/S"S8IT#-1:&$"PS"E"STTE"T$/S"S8IT#-13

3.)et H%F*%F*F%P timer

SET UUESTTET$/STI'E$* e&;(StateTransTimer+5, e(;PStateTransTimer+<,

e#;(StateTransTimer+5, eE;(StateTransTimer+53

+.)et P) Ina(ti,e timer

SET UPSI/TTI'E$* PsInactTmr(orInt+1=00, PsInactTmr(orac+1=003

. )et F% +A !hre'hold

SET UUESTTET$/S* e(;&TvmThd+&;>,e(;#TvmThd+&;>, e(;ETvmThd+&;>3





#.#.C%&& Confi$uration@ne CELL-PCH ena:led, lot of t+e !e" 'ill :e t"an#it to PCH +annel. Congetion #ig+t :e

+a$$ened. Additional CCPCH i #andato"* "e;!i"ed fo" all t+e ell to e$and t+e PCH and ACH

a$ait* :efo"e ena:le Cell-PCH and E6 feat!"e

/elo' i t+e "i$t fo" ell CCPCH addition.

)tep1.ea(ti,e Cell

• &E UE!!* ellId+????3

)tep%.Remo,e ei't )CCPCH

• &E USP#* ellId+????, Ph@hId+=3

• $' UP#&A/T(S* ellId+????, TrhId+6, $!SiBe+;503

• $' UP#* ellId+????, TrhId+63

• $' UPI#* ellId+????, PI#Id+103

• $' U(#!)#* ellId+????, TrhId+53

• $' U(#&A/T(S* ellId+????, TrhId+5, $!SiBe+1<=3

• $' U(#&A/T(S* ellId+????, TrhId+C, $!SiBe+6<03

• $' U(#* ellId+????, TrhId+53

• $' U(#* ellId+????, TrhId+C3

• $' USP#* ellId+????, Ph@hId+=3

)tep3.Add )CCPCH /or PCH

• && USP#SI*E!!I&+????, P#A#I&+=, T(IP$ESE/E+E?ISTS,

SP#)((SET+C0, S$')&E+0, STT&I/&+(!SE, T(SI7E+IT5,S!)T()$'T+&=, ''S#I/&+)'')/3

• && USP#T(*E!!I&+????, P#A#I&+=, T(+03

• && USP#T(*E!!I&+????, P#A#I&+=, T(+13

)tep+.Add PCH and A(ti,e it

• && UPI#*E!!I&+????, PI#I&+10, P#A#I&+=, PI#')&E+6<, STT&I/&+(!SE3

• && UP#*E!!I&+????, T$#I&+6, P#A#I&+=, $TE'T#I/2TT$+;60,





T)8S+6C, T)8E+10, P#P)8E$+-;03

• && UP#&A/T(S*E!!I&+????, $!SI7E+;50, T$#I&+6, T(S/U'E$+&;,

T/U'E$1+0, T/U'E$;+13

• T USP#*E!!I&+????, P#A#I&+=3

)tep.Add )CCPCH /or FACH

• && USP#SI*E!!I&+????, P#A#I&+, T(IP$ESE/E+E?ISTS,

SP#)((SET+100, S$')&E+0, STT&I/&+(!SE, T(SI7E+IT5,

S!)T()$'T+&=, ''S#I/&+)'')/3

• && USP#T(*E!!I&+????, P#A#I&+, T(+03

• && USP#T(*E!!I&+????, P#A#I&+, T(+13

• && USP#T(*E!!I&+????, P#A#I&+, T(+;3

• && USP#T(*E!!I&+????, P#A#I&+, T(+63

)tep0.Add FACH )i (hannel and 2'er (hannel

• && U(#*E!!I&+????, T$#I&+5, P#A#I&+, $TE'T#I/2TT$+;;0,

'?'#PI+&1C, 'I/'#PI+&15, SI2$I/&+T$UE,

#)&I/2TAPE+)/)!UTI)/!, )&I/2$TE+&1D;, T)8S+6C, T)8E+10,

'?(#P)8E$+103• && U(#*E!!I&+????, T$#I&+C, P#A#I&+, $TE'T#I/2TT$+160,

'?'#PI+&16, 'I/'#PI+&0, SI2$I/&+(!SE, #)&I/2TAPE+TU$),

T)8S+6C, T)8E+10, '?(#P)8E$+103

• && U(#&A/T(S*E!!I&+????, T$#I&+5, $!SI7E+1<=, T(S/U'E$+&6,

T/U'E$1+0, T/U'E$;+1, T/U'E$6+;3

• && U(#&A/T(S*E!!I&+????, T$#I&+C, $!SI7E+6<0, T(S/U'E$+&;,

T/U'E$1+0, T/U'E$;+13

• && U(#!)#*T$#I&+5, E!!I&+????,

• T USP#*E!!I&+????, P#A#I&+3

)tep.A(ti,e Cell

• T UE!!*E!!I&+????3

)tep.4Che(k Cell 'tatu' and )CCPCH a,aila&ilit5 'tatu'

• &SP UE!!*E!!I&+????3





#.).Reserved Parameter Confi$uration

T+e"e a"e t'o "ee"4ed $a"a#ete" need to :e #odified to a4oid C A/ deg"adation i!e

S%T 2RRCTR&S3ITC!4 RsvdPara15RS+DIT1'IT#1,6

S%T 2RRCTR&S3ITC!4 RsvdPara15RS+DIT1'IT#,,6

Afte" t+e CELLPCH tate i ati4ated, t+e C A/ aign#ent fail !nde" t+e follo'ing ondition

A UE t"anit f"o# t+e CELLPCH tate to t+e CELLACH tate :efo"e etting !$ an A e"4ie.

W+en t+e UE in t+e CELLACH tate ta"t t+e A e"4ie et!$, t+e UE t"anit f"o# CELLACH tate

to CELL6CH tate.

6!"ing t+e A e"4ie et!$, t+e &C "eei4e f"o# t+e UE a CELL UP6ATE #eage 'it+ a a!e 4al!e of

Bell "eeletionB afte" ending t+e UE a A6I@ /EAE ETUP #eage. T+e &C t+en end t+e C& an

A/ AI%&E&T EP@&E #eage, notif*ing t+e C& t+at t+e A e"4ie et!$ fail.

W+en t+e ell !$date $"oed!"e 'it+ t+e a!e 4al!e of Bell "eeletionB o!" in t+e A e"4ie et!$

$"oed!"e, t+e &C to$ t+e A e"4ie et!$ $"oed!"e and end an A/ AI%&E&T EP@&E

#eage to t+e C&, and t+en t+e &C ta"t to $"oe t+e ell !$date $"oed!"e.

T+e A e"4ie et!$ fail '+en t+e ell !$date $"oed!"e 'it+ t+e a!e 4al!e of Bell "eeletionB o!" in

t+e A e"4ie et!$ $"oed!"e.

1. If t+e UE t"anit f"o# CELLACH tate to CELL6CH tate '+en etting !$ A e"4ie, en!"e t+at

t+e &C to$ t+e A e"4ie et!$ afte" "eei4ing t+e CELL UP6ATE #eage 'it+ a a!e 4al!e of Bell

"eeletionB, and ontin!e t+e A e"4ie et!$ afte" t+e CELL UP6ATE #eage i $"oeed. T+e $"eeding

f!ntion i dia:led :* defa!lt. To ena:le t+i f!ntion, "!n t+e follo'ing o##and

ET UCTLWITCH 4dPa"a1D6/IT1/IT21-0

2. If a UE in CELLPCH tate end a CELL UP6ATE #eage 'it+ a a!e 4al!e of B@"iginating

Con4e"ational CallB o" BE#e"gen* CallB to t+e &C '+en etting !$ A e"4ie, en!"e t+at t+e &C

notifie t+e UE to t"anit f"o# CELLPCH tate to CELL6CH tate. In t+i 'a*, t+e t'o $"oed!"e a"e not

"oed. T+e $"eeding f!ntion i dia:led :* defa!lt. To ena:le t+i f!ntion, "!n t+e follo'ing o##and





ET UCTLWITCH 4dPa"a1D6/IT1/IT20-0

). *eature Testin$ and +erification

).1. Test caseT+e"e a"e o#e tet ae in &C ae$tane g!ild, :elo' i detail

Test CaseDescri pti on. doc





". -PI Impact after C%&&'PC!

%nabled

".1.-PI Impact and De$radationAfte" CELL FPCH ena:led in li4e net'o"(, t+e"e a"e #an* 5PI 'ill :e deg"aded. /!t #ot oft+e 5PI deg"adation a"e not i#$at !to#e" e$e"iene, t+e loal enginee" #!t e$lain t+e $oi:ilit* e;!ene to !to#e" :efo"e i#$le#entation to a4oid t+e o#$laint.

".1.1. Relocation Preparation Success RateDecreased

W+ile T&C ena:led CellPCH f!ntion, &C P and C &C "eloation $"e$a"ation!e "ate de"eaed +a"$l*. /elo' i a ea#$le in li4e net'o"(

Root cause

"o# ignaling #eage t+e"e a"e t'o "eaon a!ed t+i deg"adation





- ail!"e #eage1? #eage-not-o#$ati:le-'it+-"eei4e"-tate?

- ail!"e #eage 2? "eloation-fail!"e-in-ta"get-C&-&C-o"-ta"get-*te#B

Afte" Cell-PCH la!n+ed, to a e"taint*, !e" in Cell-ACH and Cell-PCH tate in"eaed.T+at 'ill lead to o#:ined e"4ie of CGP in"eaed too. And !""ent IU dont !$$o"tCCH, o t+i ene a$$ea"ed.

ine t+e "eaon of "eloation $"e$a"e tage fail!"e i a!ed :* !e" :e+a4io" afte" Cell PCHfeat!"e ena:led in li4e net'o"(, and t+e"e i no an* a:no"#al in &C $"oeing. Alo t+ii!e i not affet !e" e$e"iene, o no need to ena:le CCH o4e" I!" to ol4e t+i i!e.

I!!ediate action and "olution

&o need ta(e ation fo" t+i 5PI deg"adation.

".1.#. PS Idle 7ode Pa$in$ De$radation

W+ile T&C ena:led Cell-PCH f!ntion, t+e !e "ate of P idle #ode $aging 'adeg"aded, :elo' i t+e 5PI

Root cause

T+e "oot a!e of t+i idle $aging deg"adation i d!e to !e" :e+a4io" +anging afte"ell-$+ i#$le#ented in '+ole net'o"(.

&o"#all* t+e"e a"e t'o (ind of P !e" in #o:ile net'o"( +ig+ ati4e !e" and





lo' ati4e !e". T+e +ig+ ati4e !e" a"e '+o !ing P e"4ie f"e;!entl*, fo" ea#$let+e fae:oo(, $!+#ail, & !e". W+en t+oe !e" #a(ing e"4ie, no"#all* t+e* a"eal'a* +ooing good o4e"age a"ea to !e P e"4ie and '+en t+e* a"e o#e to :ado4e"age a"ea, afte" a fe' ti#e fail!"e t+e* 'ill gi4e !$ t+e e"4ie. Alo t+ea$$liation e"4e" onide"ed t+i !e" i offline al"ead* afte" e"4ie failed, it 'ill notall t+i !e" fo" a e"tain ti#e.

o t+at t+e +ig+ ati4e !e" a"e al'a* +a good $agingall !e "ate. /!t t+elo' ati4e !e" a"e al'a* +a lo'e" $agingall !e "ate :ea!e t+at t+oe !e" a"enot initiati4e to #a(e P e"4ie t+e* no"#all* to "eei4e $ all$aging $ai4it* o t+att+e $oi:ilit* of t+ei" P e"4ie in good and $oo" o4e"age a"ea i a#e.

Afte" ell-PCH feat!"e ena:led, t+e +ig+ ati4e !e" a"e al'a* ta* in PCH tat! :!t t+e lo' ati4e !e" 'ill :e in idle #ode :ea!e t+e* a"e not #a(e e"4ief"e;!entl*.

T+at '+* t+e idle #ode $aging i deg"aded.


&o need ta(e ation fo" t+i 5PI deg"adation.

".1.). RC !SDPA D#! Incereased 3hen RC isR1#SPC899

W+ile T&C ena:led Cell-PCH f!ntion, &C P and C &C "eloation $"e$a"ation





Root cause

- T+e 4e"ion D900012E&%C01PH +a an inne" a"it+#eti o""etion, '+i+ #a(e

t+e online ti#e al!lation of CELLPCH !e" #o"e a!"ate t+en #a(e CELLPCH !e"

n!#:e" in"eae a lot.

- o" t+e UE of and :elo' , if it tate i CELLPCH and et!$ a C A/, t+en

t+e"e 'ill :e a ena"io of 62H.

- T+e lengt+ of P inati4e ti#e" i onfig!"ed 4e"* long on !""ent net'o"( <00 eond=

and t+e CELLPCH !e" n!#:e" in"eae a lot, t+en t+e 62H ene a:o4e in"eaed a lot.

- ot UE in d! a"e !nde" de4ie

- T+e UE !nde" in CELLPCH tate 'ill t"igge" 62H '+en et!$ C A/.

All t+e "eaon a:o4e #a(e t+e 62H in"eaed a lot, '+i+ i no"#al


&o need ta(e ation fo" t+i 5PI deg"adation

".1.". RC Call Drop Rate De$radation&C all d"o$ "ate 'ill :e deg"aded afte" CELL-PCH feat!"e la!n+ed.

P Call 6"o$ atio P A/ a:no"#al "eleae ti#e<P A/ a:no"#al "eleae ti#eJ PA/ no"#al "eleae ti#e=

Afte" CELLPCH o" E6 feat!"e ena:le, T+e P inati4e ti#e" 'ill etend t+en '+olenet'o"( >P A/ &o"#al eleae Ti#e? 'ill "ed!e, f!"t+e" >P Call 6"o$ atio? 'illin"eae.

o"e P !e" 'ill (ee$ in CELLACH, t+e CELLACH all d"o$ 'ill in"eae a little+ig+e" t+an CELL6CH. t+e >P A/ A:no"#al eleae Ti#e? 'ill in"eae a little :it $"o:a:l*.

T+e "eaon of >P Call 6"o$ atio? in"eae i t+e >P A/ no"#al "eleae ti#e? deline,o t+at t+e !e" $e"e$tion i till no"#al.





".#. -PI *ormula Chan$e after C%&&PC!Implementation

It i "eo##ended to +ange t+e P C6 fo"#!la to el!de t+e d"o$ '+i+ i +a$$ened in PCH o"

ACH afte" ell-PCH la!n+ed.

/elo' i t+e 5PI fo"#!la '+i+ i !ed in E o$e"ato".





#a$le % P 99 C6<Cell．PCH=

Counter & 'or!ula·

P 99 Call 6"o$ atio 'it+ PCH <Cell=

K<D.A/.A:no"#el.P99-

D.A/.A:no"#el.P.PCH-

D.A/.A:no"#el.P.9962P-

D.A/.A:no"#el.P.2P=

<D.A/.A:no"#el.P99J

D.A/.&o"#el.P99-

D.A/.A:no"#el.P.PCH-

D.A/.&o"#el.P.PCHJ

D.H6PA.2H.!J

D.H6PA.62H.!J

D.P99.62P.!J

D.6CCC.!.2P=M100N

"coe CELL

#a$le P H6PA C6<Cell．PCH=





Counter & 'or!ula· H6PA e"4ie 6"o$ atio 'it+ PCH<Cell=

K<D.H6PA.A/.A:no"#el-

D.H6PA.A/.A:no"#el.H2P=

<D.H6PA.A/.A:no"#elJ

D.H6PA.A/.&o"#elJ

[email protected].!@!tInt"a"e;J

[email protected].!@!tInte""e;J

D.H6PA.H26.!J

D.H6PA.H2.!J

D.H6PA.H2P.!=M100N

· H6PA e"4ie 6"o$ atio 'it+ PCH<&C=

K<D.H6PA.A/.A:no"#elJ

D.A/.A:no"#el.H6PA.I!"-

D.H6PA.A/.A:no"#el.H2P=

<D.H6PA.A/.A:no"#elJ

D.A/.A:no"#el.H6PA.I!"J

D.A/.&o"#el.H6PA.I!"J

D.H6PA.A/.&o"#elJ

D.H6PA.H26.!J

D.H6PA.H2.!J



D.H6PA.H2P.!=M100N

"coe CELL, I!"

#a$le * P HUPA C6<Cell．PCH=





Counter & 'or!ula HUPA Call 6"o$ atio 'it+ PCH <Cell=

K<D.HUPA.A/.A:no"#el-

D.HUPA.A/.A:no"#el.E2P=

<D.HUPA.A/.A:no"#elJ

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D.HUPA.E2.!J

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"coe CELL, I!"






Date post:	07-Aug-2018
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Feature Implementation Guide - CELL PCH

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