Owo127010 Wcdma Hsdpa Ran15 Rrm and Parameters Issue 1.00

7/21/2019 Owo127010 Wcdma Hsdpa Ran15 Rrm and Parameters Issue 1.00

http://slidepdf.com/reader/full/owo127010-wcdma-hsdpa-ran15-rrm-and-parameters-issue-100 1/82

www.huawei.com

opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.

WCDMA HSDPA RRM and Parameters




Objectives

Upon completion of this course !ou "ill be able to# $no" the principle of HSDPA RRM $no" the relative parameters of HSDPA RRM

age!



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age4

Contents

1.HSDPA %earer Mappin&

2. HSDPA Code Resource Mana&ement

3. HSDPA Po"er Resource Mana&ement

4. HSDPA Mobilit! Mana&ement

5. HSDPA Channel S"itchin&6. HSDPA Mac'hs Schedulin& Al&orithm

7. HSDPA ()RC Selection



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age"

HSDPA %earer Mappin&

CNDomain ServiceType Can Be Carried onHS-DSCH? OptionalFeature?

-Signaling(SRB)

Yes Yes

CS

Voice Yes Yes

Videohone !o !oS"#eaming !o !o

$S

Con%e#sa"ional

Yes Yes

S"#eaming Yes Yes

&n"e#ac"i%e Yes !oBac'g#ound Yes !o

&S signaling Yes Yes

BS $$ Yes Yes



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age#

SR% over HSDPA *f the channel t!pe Si&Chl(!p is set to DCH then SrbChl(!pe is set

to HSDPA or HSPA + SrbChl(!peRrc,f fect) la& is set to (RU, #



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age$

SR% over HSDPA -cont./ *f SrbChl(!pe is set to HSDPA or HSPA + SrbChl(!peRrc,f fect) l

a& is set to )A0S, #



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age%

Related Parameters#

Parameter ID Decription

SrbChlType *e o+ channel "ha" #e+e#a,l* ca##ies "hesignaling RB.- C/ Bo"h ulin' and downlin' a#e #e+e#a,l*ca##ied on C.

- S$0/ 1lin' is #e+e#a,l* ca##ied on C anddownlin' is #e+e#a,l* ca##ied on S-SC.- S1$0/ 1lin' is #e+e#a,l* ca##ied on -Cand downlin' is #e+e#a,l* ca##ied on C.- S$0/ 1lin' is #e+e#a,l* ca##ied on -Cand downlin' is #e+e#a,l* ca##ied on S-SC.

SrbChlTypeRrcEfect Flag

he"he# "he congu#ed "*e o+ channel "ha"#e+e#a,l* ca##ies "he signaling RB is eec"i%e in"he case o+ RRC connec"ion es"a,lishmen"



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age&

Mappin& %, (raffic onto HSDPA

Durin& service setup procedure D0 PS interactive and bac1&roundservices -%, service/ can be mapped onto the CCH DCH HS'DSCHbased on ma2imum service rate.




Related Parameters#Parameter ID Decription

DlBeTrafDecThs Ra"e "h#eshold +o# "he decision "o se" u a $Sdomain ,ac'g#oundin"e#ac"i%e se#%ice on "he Cin "he downlin'. 8nl* when "he 9 se#%ice #a"e ishighe# "han o# e:ual "o "his "h#eshold o# "he 19se#%ice #a"e is highe# "han o# e:ual "o "he ulin'"h#eshold "he se#%ice will ,e se" u on C.8"he#wise "he se#%ice is se" u on CC. 0cco#ding"o "he secica"ions onl* "he,ac'g#oundin"e#ac"i%e se#%ices whose #a"e islowe# "han ;6 ',i"s can ,e ca##ied on "he CC.

he#e+o#e "his a#ame"e# can onl* ,e se" "o ;6',i"s o# < ',i"s.

DlBeTrafThsOnHsdpa

Ra"e "h#eshold +o# decision "o use S-SC "o ca##*9 $S ,ac'g#oundin"e#ac"i%e se#%ices. hen "hema=imum 9 se#%ice #a"e is highe# "han o# e:ual "o"his "h#eshold "he se#%ice will ,e ca##ied on S-SC. 8"he#wise i" will ,e ca##ied on C.




Mappin& CS voice onto HSDPA

CS speech voice ma! be mapped onto the DCH HS'DSCH or ,'DCH

*f CS3oiceChl(!pe 4 DCH

%oth uplin1 and do"nlin1 are mapped onto DCH

*f CS3oiceChl(!pe 4 HSPA

Uplin1 is beared on ,'DCH do"nlin1 mapped onto HS'DSCH




Related Parameters#


CSVoiceChlTy pe

Channel "*e o+ CS %oice se#%ices.C indica"es "ha" ,o"h ulin' and downlin' a#e#e+e#a,l* ca##ied on C.S$0 indica"es "ha" ulin' is #e+e#a,l* ca##ied on -

C and downlin' is #e+e#a,l* ca##ied on S-SC.&n a#"icula# ,o"h ulin' and downlin' will ,e ca##iedon C i+ ei"he# ulin' canno" ,e ca##ied on -Co# downlin' canno" ,e ca##ied on S-SC.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age1!

Mappin& 3o*P onto HSDPA

PS conversational services ma! be mapped onto the DCH HS'DSCH or ,'DCH#

*f 3oipChl(!pe 4 D CH

%oth uplin1 and do"nlin1 are mapped onto DCH *f 3oipChl(!pe 4 HSDPA

Uplin1 is beared on DCH do"nlin1 mapped onto HS'DSCH

*f 3oipChl(!pe 4 HSPA

Uplin1 is beared on ,'DCH do"nlin1 mapped onto HS'DSC

H




Related Parameters

ParameterID

Decription

VoipChlType

*e o+ channel "ha" #e+e#a,l* ca##ies Vo&$ se#%ices. - C/ Bo"h ulin' and downlin' a#e #e+e#a,l* ca##iedon "he C.

- S$0/ 1lin' is #e+e#a,l* ca##ied on "he C anddownlin' is #e+e#a,l* ca##ied on "he S-SC. - S$0/ 1lin' is #e+e#a,l* ca##ied on "he -C anddownlin' is #e+e#a,l* ca##ied on "he S-SC.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age1"

Mappin& PS Streamin& Services onto HSDPA

PS streamin& services can be mapped onto HSDPA# *f (he cell supports HSDPA *f

MAP5PS5S(R,AM5O65HSDPA5S *(CH

is selected *f (he ma2imum D0 service rate is hi&her than or e7ual to D lS

tr(hsOnHsdpa



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age1#

Related Parameters


DlStrThsOnHsdpa Ra"e "h#eshold +o# decision "o useS-SC "o ca##* 9 $S s"#eamingse#%ices. hen "he ma=imum 9

se#%ice #a"e is highe# "han o# e:ual"o "his "h#eshold "he se#%ice will ,eca##ied on S-SC. 8"he#wise i"will ,e ca##ied on C.

MAPPSSTREAMO!HSDPAS" #TCH

Swi"ch +o# $S s"#eaming se#%icemaing on"o S$0



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age1$

Mappin& *MS Si&nalin& onto HSDPA

(he *MS si&nalin& can be mapped on the DCH HS'DSCH or,'DCH#

*f *msChl(!pe 4 D CH

%oth uplin1 and do"nlin1 are mapped on DCH

*f

*msChl(!pe 4 HSDPA

Uplin1 is mapped on DCH do"nlin1 mapped on HS'DSCH

*f

*msChl(!pe 4 HSPA

Uplin1 is mapped onto ,'DCH do"nlin1 mapped on HS'DSCH



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age1%

Related Parameters

Parameter ID

Decription

#$sChlTy pe

Channel "*e o+ &S signaling. - C/ Bo"h ulin' and downlin' a#e #e+e#a,l*ca##ied on "he C.

- S$0/ 1lin' is #e+e#a,l* ca##ied on "he Cand downlin' is #e+e#a,l* ca##ied on "he S-SC. - S$0/ 1lin' is #e+e#a,l* ca##ied on "he -Cand downlin' is #e+e#a,l* ca##ied on "he S-SC.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age1&

Contents

;. HSDPA Channel (!pe Mappin&!.

HSDPA Code Resource Mana&ement



5. HSDPA Channel S"itchin&6. HSDPA Mac'hs Schedulin& Al&orithm





HS'SCCH Code Resource Mana&ement

,ach HS'SCCH uses an S)89: code. (he number of HS'SCCHs determines the ma2imum number of HSDPA users that can be sch

eduled simultaneousl! in a ((*. the parameter HsScchCode6u

m defines the number of HS'SCCH in the cell.




R6C'controlled Static Code Allocation

*f the R6C'controlled static code allocation is used the number of reserved HS'PDSCH codes is specified b! the parameter HsPdsc

hCode6um on the R6C side. %ased on the number the R6C reserves codes for the HS'PDSCH. (he DPCH HS'SCCH and common

channels use the other codes.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age2"

Related Parameters


HsPdschCode!%$

he a#ame"e# secies "he num,e# o+ S-$SC codes. his a#ame"e# is %alid onl*when >0lloca"e Code ode> is se" "o >anual>.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age2%

R6C'controlled D!namic Code Allocation -cont./

Releasin& an HS'PDSCH code (he fi&ure sho"s ho" to release an HS'PDSCH code. (he solid dots rep

resent the allocated codes and the circles represent the idle codes.




Related Parameters


HsPdschMinCode!%$

he a#ame"e# secies "he minimum num,e# o+

"he S-$SC codes (S?@;6). his a#ame"e# is

%alid onl* when >0lloca"e Code ode> is se" "o

0u"oma"ic.HsPdschMa'Code

!%$

he a#ame"e# de"e#mines "he ma=imum num,e#

o+ S-$SC codes (S?@;6). his a#ame"e# is

%alid onl* when >0lloca"e Code ode> is se" "o

>0u"oma"ic>.

Cell)drS*ResThd Cell S? #ese#%ed "h#eshold. he code load

#eshuAing could ,e "#igge#ed onl* when "he

minimum a%aila,le S? o+ a cell is highe# "han "his

"h#eshold.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age!0

6ode%'controlled D!namic Code Allocation

;enerall! the 6ode% can use the HS'PDSCH codes onl! allocatedb! the R6C. %ut the 6ode%'controlled d!namic code allocation m

ethod allo"s the 6ode% to temporaril! allocate idle codes to the

HS'PDSCH.

NodeB-controlled dynamic code allocation




D!namic Code (ree Reshufflin& Re&ardless of "hether d!namic code allocation is controlled b!

the R6C or the 6ode% the number of continuous codes available for the HS'PDSCH shall be ma2imi<ed. (he d!namic code treereshufflin& function can achieve this &oal b! reallocatin& DPCHcodes.




Related Parameters


CodeAd+ForHsdpaS&itch Code #eshuAe swi"ch ,ased on . &+ "heswi"ch is ena,led"he R!C will selec" R 1"o do code adus"ing which will +#ee "hesha#ing codes adacen" "o S$0 code.

CodeAd+ForHsdpa,ser!%

$Thd

-,ased code "#ee #eshuAe use# num,e#

"h#eshold. hen "he swi"ch >Code 0dus"Swi"ch +o# S$0>is ena,led i+ "he num,e#o+ use#s on "he "#ee "o ,e #eshuAed is nog#ea"e# "han "his a#ame"e# "he #eshuAe isallowed. 8"he#wise "he #eshuAe is gi%enu. his a#ame"e# limi"s "he num,e# o+

use#s in%ol%ed in one #eshuAe so "ha"#eshuAe on lo"s o+ use#s a" a "ime isa%oided.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age!!

Contents

;. HSDPA Channel (!pe Mappin&2. HSDPA Code Resource Mana&ement

".HSDPA Po"er Resource Mana&ement


5. HSDPA Channel S"itchin&

6. HSDPA Mac'hs Schedulin& Al&orithm





%asic Principle of HSDPA Po"er ResourceMana&ement

(he do"nlin1 po"er resources of HSDPA can be d!namicall! allocated as follo"s#

(he do"nlin1 po"er resources are firstl! reserved for common ph!

sical channels and allocated to the DPCH. (he remainin& po"er res

ources are available for HSPA includin& HSUPA and HSDPA.

(he HSPA po"er resources are first allocated to the HSUPA do"nlin

1 control channels includin& the ,'A;CH ,'R;CH and

,'H*CH. (he remainin& po"er resources are available for HSDPA.

(he HSDPA po"er resources are first allocated to the do"nlin1 cont

rol channel HS'SCCH.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age!"

D!namic HSDPA Po"er Resource Allocation



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age!$

Po"er Control on HS'DPCCH (he po"er of the HS'DPCCH is set b! several po"er offsets bet"een the

HS'DPCCH and the associated uplin1 DPCCH. (he po"er offsets consist of the AC$ po"er offset 6AC$ po"er offset and C=* po"er offset. (he po

"er offsets are set at each HS'DPCCH ((*.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age!%

Po"er Control on HS'SCCH in C,005DCH (he po"er control method for the HS'SCCH can be fi2ed -fi2ed tr

ansmit po"er control/ or C=*'based -d!namic transmit po"er co

ntrol/. (he method is specified b! the parameter HSSCCHP RC

M*6DCH .



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age!&

Related Parameters


HSSCCHP"RCM#!DCH

S-SCC $owe# Con"#ol e"hod.

SCCHP"R he owe# o+ "he S-SCC is an ose"

in dB "o "he "#ansmi" owe# o+ "he$C$&C.

HSSCCHFERTR-T#!DCH

S-SCC ?R a#ge" in C99 CS"a"e




Po"er Control on HS'SCCH in ,nhanced C,005)ACH

When the U, is in the enhanced C,005)ACH state and the HS'PDSCH carries the %CCH the po"er of the HS'SCCH is det

ermined b! the offset relative to the P'CP*CH po"er. (he of

fset is specified b! %cchHsscchPo"er.

When the U, is in the enhanced C,005)ACH state and the H

S'PDSCH carries the user data the po"er control method f

or the HS'SCCH can be fi2ed -fi2ed transmit po"er control/

or C=*'based -d!namic transmit po"er control/. (he metho

d is specified b! HsScchP"rCM*n,fach.

age40




Related Parameters

age41


BcchHsscchPo&er BCC S-SCC $owe#

HsScchP&rCM#nE*ach

S-SCC $owe# Con"#ol e"hod inC99 ?0C s"a"e




Po"er Control on HS'SCCH in ,nhanced C,005PCH>URA5PCH

When the U, in the enhanced C,005PCH>URA5PCH state rec

eives do"nlin1 data from the HS'PDSCH the U, does not r

eturn an! AC$>6AC$ response or C=* information. *n this c

ase the po"er of the HS'SCCH is determined b! the offset r

elative to the P'CP*CH po"er. (he offset is specified b! ,PC

HHSSCCHPo"er.

age42




Contents



#.HSDPA Mobilit! Mana&ement






opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age4$

Handlin& of ,vent 8% After receivin& an event 8% report the R6C determines "hether

to delete a cell# *f the cell to be deleted is not an HSDPA servin& cell the cell is directl

! removed. *f the cell to be deleted is an HSDPA servin& cell then#

*f the ne" best cell supports HSDPA the ne" best cell is reconfi&u

red to be an HSDPA servin& cell. *f the reconfi&uration fails the service is reconfi&ured onto DPCH.

*f the ne" best cell does not support HSDPA the service is reconfi&ured onto DPCH to ensure the continuit! of the service.




Handlin& of ,vent 8D After receivin& an event 8D report the R6C proceeds as follo"s#

*f the do"nlin1 service is carried on the HSDPA then# *f the ne" best cell in the active set supports HSDPA and the HSP

A h!steresis timer e2pires the ne" best cell is reconfi&ured to bean HSDPA servin& cell. (he HSPA h!steresis timer is restarted after the servin& cell chan&e and is to avoid fre7uent updates at the b

oundar! bet"een t"o HSDPA cells. (he timer len&th is specified b! the parameter Hspa(imer0en . *f the ne" best cell in the active set does not support HSDPA the

do"nlin1 service is directed to the DCH throu&h the reconfi&uration.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age"0

Handlin& of ,vent 8D -cont./

*f the do"nlin1 service is carried on the DCH then# (o avoid fre7uent handovers at the boundar! bet"een an HSDPA cell

and an R?? cell a protection timer ChannelRetr!Ho(imer0en is used. After an intra'fre7uenc! handover the timer starts. After this timer e2pires the R6C reconfi&ures the service of the U, onto the HS'PDSCH if either of the follo"in& t"o conditions is met# (he tar&et cell supports HSDPA. (he tar&et cell does not support HSDPA but has a DRD nei&hborin

& cell.




Related Parameters


HspaTi$er)en o a%oid +#e:uen" se#%ing cell change whichma* aec" "he s*s"em e#+o#mance "his "ime#is needed. he %alue D means "his "ime# shallno" ,e s"a#"ed and se#%ing cell change ,eini"ia"ed immedia"el*.

ChannelRetryHoTi$er)en

his a#ame"e# secies "he %alue o+ "hehando%e# #o"ec"ion "ime#. &+ se#%ices can ,ese" u on channels ,ased on a highe#"echni:ue a+"e# channel hando%e# iscomle"ed "he hando%e# #o"ec"ion "ime# will,e s"a#"ed. hen "he "ime# e=i#es "he R!Cwill "#* "o ca##* se#%ices on channels ,ased ona highe# "echni:ue. Channel #e"#* canno" ,ee#+o#med ,e+o#e "his "ime# e=i#es.




Scenario8 of HSDPA *ntra'fre7uenc! Handover

Cell 1(HSDPA) and cell 2(HSDPA) are intra-frequencyneighoring cell!" #$ trigger! !er%ice in cell1 and mo%e! to cell2"

Cell 1 (HSDPA) Cell 2 (HSDPA)

#$ mo%ing direction



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age"!

Scenario9 of HSDPA *ntra'fre7uenc! Handover

Cell 1(HSDPA) and cell 2(&'') are intra-frequency neighoringcell!" #$ trigger! !er%ice in cell1 and mo%e! to cell2"

Cell 1 (HSDPA) Cell 2 (&'')

#$ mo%ing direction

f f d




Scenario@ of HSDPA *ntra'fre7uenc! Handover

Cell 1(&'') and cell 2(HSDPA) are intra-frequency neighoringcell!" #$ trigger! !er%ice in cell1 and mo%e! to cell2"

Cell 1 (&'') Cell 2 (HSDPA)

#$ mo%ing direction

i f f d



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age""

Scenario8 of HSDPA *nter'fre7uenc! Handover hen the #$ mo%e! from cell 1 (an HSDPA cell) to cell 2 (an &'' cell) the

inter-frequency hando%er condition! are met and mea!urement control i!

triggered" *he &NC ma+e! a hando%er deci!ion for HSDPA !er%ice!

according to the neighoring cell mea!urement re,ort and reconfigure! the

!er%ice onto the DPCH of cell 2"

S i 9 f HSDPA * f H d



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age"#

Scenario9 of HSDPA *nter'fre7uenc! Handover hen the #$ mo%e! from cell 2 (an &'' cell) to cell 1 (an HSDPA cell) the

inter-frequency hando%er condition! are met and mea!urement control i!

triggered" *he &NC hand! o%er the #$ to the DPCH fir!t and then to the

HS-PDSCH if the !er%ice can e carried on the HS-PDSCH"



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age#0

S"itchin& bet"een HS'DSCH and )ACH

the s"itchin& bet"een HS'DSCH and )ACH can be tri&&ered b! traffic volume or cell load. "hich is similar to the s"itchin& bet"e

en DCH and )ACH.

When the cell load is too hi&h load control ma! also tri&&er the

s"itchin& from the HS'DSCH to the )ACH to relieve con&estion.

C$../DCH(ith HS-DSCH)

C$../0ACH

lo traffic %olume or

high cell load

high traffic %olume



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age#1

S"itchin& from HS'DSCH to DCH

(ri&&ers for s"itchin& from the HS'DSCH to the DCH are as follo"s# (he HS'DSCH is selected durin& the service setup but neither the resourc

es of the servin& cell nor the resources of the inter'fre7uenc! same'cove

ra&e nei&hborin& cell are sufficient. *n such a case the HS'DSCH is s"itc

hed to the DCH.

(he HS'DSCH servin& cell chan&es. (he U, attempts to set up a ne" HS'DSCH connection "ith the ne" best cell. *n such a case the possible sce

narios are as follo"s#

*f the ne" best cell does not support the HS'DSCH the U, cannot set up the H

S'DSCH connection. *n this case the HS'DSCH is s"itched to the DCH.

*f the ne" best cell supports the HS'DSCH but a ne" HS'DSCH connection can

not be set up because the resources are insufficient the DCH connection is se

t up and the HS'DSCH is s"itched to this DCH.



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age#"

MAB C>* Al&orithm

(he retransmission processes unconditionall! have hi&her priorities than the initial transmission 7ueues. (he retransmission processes are sorted in first'in first'out -)*)O/ mode. (he initial transmission 7ueues are sorted in the C=* order. A hi&her C=* means a hi&her data priorit!.

(he MAB C>* al&orithm aims to ma2imi<e the s!stem capacit! butcannot ensure user fairness and differentiated services.

Sy!tem ca,acity i! the only con!ideration of 3A4 C5"



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age##

RR Al&orithm (he retransmission processes unconditionall! have hi&her prioriti

es than the initial transmission 7ueues. (he retransmission processes are sorted in )*)O mode. (he initial transmission 7ueues aresorted in the order of the "aitin& time in the MAC'hs 7ueue. A lon&er "aitin& time means a hi&her data priorit!.

(he RR al&orithm aims to ensure user fairness but cannot provide

differentiated services. 6ot considerin& the C=* reported b! the U, leads to lo"er s!stem capacit!.

#!er fairne!! i! the only con!ideration of &&"



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age#$

P) Al&orithm

(he retransmission processes unconditionall! have hi&her prioriti

es than the initial transmission 7ueues. (he retransmission proce

sses are sorted in )*)O mode. (he initial transmission 7ueues are

sorted in the order of R>r . Here R represents the throu&hput corr

espondin& to the C=* reported b! the U, and r represents the th

rou&hput achieved b! the U,. A &reater R>r value means a hi&her

data priorit!.

P0 con!ider! oth !y!tem ca,acity and u!er fairne!!"



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age#%

,P) Al&orithm

• Sy!tem ca,acity

• #!er fairne!!

• Sy!tem ca,acity

• #!er fairne!!

•

Differentiated !er%ice! ith different oSrequirement!

P0 con!ideration $P0 con!ideration



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age$1

A ,2ample of ,P) Schedulin& Priorit!

%asicall! dela!'sensitive service has hi&her priorit! than throu&hput'sensit

ive service. Retransmission data has hi&her priorit! than initial transmissio

n data. Other parameters also need to be considered such as SP* C=* ;%

R and etc.

1" &etran!mi!!ion of delay-!en!iti%e !er%ice

2" S&B

n de!cending order of SP C

8" &etran!mi!!ion of !treaming5B$ !er%ice

9" Streaming5B$ !er%ice ith rate loer than 7B&

Sorting in term! of P0

:" Streaming5B$ !er%ice ith rate not loer than 7B&

Sorting in term! of P0

;" <oP

n de!cending order of C

Decrea!ing

,riority



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age$!

,P)50OC Al&orithm

f a larger %alue i! !et for the LOCWEIGHT ,arameter #$ location

! eigh more in the $P0/.>C algorithm" *heoretically U,s closer to the 6ode% have more schedulin& opportunities and the

refore hi&her throu&hput. (his improves the cell throu&hput. U,s farther from the 6ode% have fe"er schedulin& opportunities and

therefore lo"er throu&hput.



C i f ) Al i h



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age$"

Comparison of )our Al&orithms )actors considered in the four schedulin& al&orithms

Factor &'(C)I

** PF +PF +PF,OC

Service type !o !o !o Yes Yes

Initialtranmiion or

retranmiion

Yes Yes Yes Yes Yes

&aimumpo/er

!o !o !o Yes Yes

0aitin time !o Yes !o Yes Yes

C2I Yes !o Yes Yes Yes

'ctualt3rou3put

!o !o Yes Yes Yes

SPI !o !o !o Yes Yes

4BP !o !o !o Yes Yes

HB* !o !o !o Yes Yes

5+ ocation !o !o !o !o Yes



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age$$

Overvie"

(he main tas1s of ()RC -transport format resource combination/ selection in each ((*# Determinin& the amount of data that can be transmitted Determinin& the modulation scheme Allocatin& appropriate po"er and channeli<ation codes

Considerations of ()RC selection# Channel conditions of the U, Available resources Amount of data buffered in the MAC'hs 7ueue



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age$%

%asic Procedure of ()RC Selection %ased on the C=* reported b! the U, available

po"er and available channeli<ation codes theal&orithm searches a C=* mappin& table for the

(%Sma2.

%ased on the (%Sma2 and the amount of data bu

ffered in the 7ueue the al&orithm determines t

he most appropriate MAC'hs (%S -(%Sused/. Here

(%S used 4 (%S ma2. %ased on the (%Sused the al&

orithm determines the most appropriate po"er

codes and modulation scheme.

%ased on the (%Sused the al&orithm calculates t

he number of MAC'd PDUs that can be transmit

ted in the MAC'hs PDU.

Determining the *BSma?

Determining the *BSu!edmodulation !cheme

,oer and code!

Determining the numer

of 3AC-d PD#!



b 1 d hi h d



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age%1

bac1"ard'searchin& methods

Hua"ei supports three bac1"ard'searchin& methods "hich are

specified b! the parameter RscAl locM on the 6ode% side#

Code5Pr i# Reduce the po"er first

Po"er5Pr i # Reduce the number of codes first

Po"erCode5%al # Reduce the po"er and codes in a balanced mode

R l d P



opyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.age%!

Determinin& the 6umber of MAC'd PDUs

(%Sused

is the used MAC'hs PDU si<e. *t contains a MAC'hs heade

r and the MAC'hs pa!load. (he si<e of MAC'hs pa!load is e7ual to the total si<e of MAC'd PDUs. Assume that S represents -(%S us

ed G -MAC'hs PDU header si<e//>-MAC'd PDU si<e/ . (hen round d

o"n S to the nearest inte&er to obtain the number of MAC'd PD

Us to be transmitted.



*han+ you"huaei"com

Owo127010 Wcdma Hsdpa Ran15 Rrm and Parameters Issue 1.00

Documents

Transcript of Owo127010 Wcdma Hsdpa Ran15 Rrm and Parameters Issue 1.00