owo115100 wcdma ran13 direct retry decision algorithm and parameters issue1.00.pptx

8/9/2019 OWO115100 WCDMA RAN13 Direct Retry Decision Algorithm and Parameters ISSUE1.00.pptx

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WCDMA Direct Retry Decision Algorithm and Parameters(DRD)


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Objectives

Upon completion o this co!rse" yo! #ill be able to$ %no# the principle o DRD %no# the classes o DRD Describe ho# DRD #or&s

%no# the relative parameters o DRD

Page


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Contents

1.Overvie# o DRD

2. RR DRD

3.RA' onPeriodic DRD

4. RA' Periodic DRD

Page!


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Principle o DRD

DRD algorithm is !sed to select a s!itable cell or a U* to access" by this algorithm" the system capacity is ma+imi,ed" a

nd better services are provided

Page"


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Classiication o DRD

Dierent types o DRD can be adopted d!ring dierent phases o service processing

Page#


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Classiication o DRD Cell

-nterre.!ency neighboring cells

Page$

Inter-RAT neighboring cells


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Contents

1.Overvie# o DRD

2. RR DRD


4. RA' Periodic DRD

Page&


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Overvie# o RRC DRD

RRC DRD is perormed #hen a U* ails to access the c!rrent cell d!ring RRC connection set!p0 /he p!rpose is to enabl

e the U* to set !p an RRC connection in a s!itable interre

.!ency neighboring cell

Page10

RRC Connection Setup

RAB Processing

RRC DRD


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/riggering Condition o RRC DRD

1cenario2 $ /he RRC connection set!p ails in the cell that the U* tried to access

1cenario3 $ /he cell that the U* is trying to access does not

s!pport signaling radio bearer (1R') over 41PA #hen it is selected as the bearer scheme

Page11


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Proced!re o RRC DRD

1tep 2 $ /he RC selects same coverage intraband interre.!ency neighboring cells o the c!rrent cell that are s!itabl

e or blind handovers

1tep 3 $ /he RC generates a list o interre.!ency candidate cells that s!pport DRD according to the ollo#ing conditi

on $

(CP-C45*co) RAC4 6 DRD5*cO nbcell

Page12


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Proced!re o RRC DRD(Cont00)

1tep 7 $ /he RC selects a target cell rom the candidate cells or U* access0 - the candidate cell list is empty" the RRC

DRD ails0 /he RC perorms RRC redirection0 - the candid

ate cell list contains more than one cell" the U* tries a cell r

andomly

Page1


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1ignaling 8lo# o RRC DRD

Page1!


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Parameters o RRC DRD

Dr1#itch

Parameter ame $ Direct Retry 1#itch Recommended val!e $

DR5RRC5DRD51W-/C4$O" DR5RA'51-95DRD51W-/C4$O" DR5RA'5COM'5DRD51W-/C4$O88

Page1"


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Parameters o RRC DRD(Cont00)

'l ind4o8lag

Parameter ame $ 'lind 4andover 8lag Recommended val!e $ 8A:1*

DRD*c(;/hreshhold

Parameter ame $ Drd *c


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Contents

1.Overvie# o DRD

2. RR DRD


4. RA' Periodic DRD

Page1$


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Contents

70 RA' onPeriodic DRD

702 onPeriodic DRD Overvie#

703 'lindhandoverbased onPeriodic DRD

707 Meas!rementbased onPeriodic DRD

Page1%


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Overvie# o onPeriodic DRD

onperiodic DRD is !sed to select a s!itable cell or U* access in the ollo#ing RA' phase $ RA' set!p RA' modiication

DCCC channel reconig!ration

onperiodic DRD can be perormed based on $ 'lind handover Meas!rement(M'DR)

Page1&


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Contents


70302 Overvie#

70303 -nter8re.!ency DRD

70307 -nterRA/ DRD

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Overvie# o 'lind4andover'ased onPeriodic DRD

'lindhandoverbased nonperiodic DRD consists o $ interre.!ency DRD interRA/ DRD

When M'DR is disabled" the ollo#ing parameters determi

ne #hether to enable blindhandoverbased nonperiodic D

RD$ 8or a single service" is the DR5RA'51-95DRD51W-/C4 s!b par

ameter o the Dr1#itch parameter

8or combined services" is the DR5RA'5COM'5DRD51W-/C4 s!b parameter o the Dr1#itch parameter

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8lo# o 'lind4andover'ased onPeriodic DRD

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RAB SetupRequest

Inter-frequency DRD

Admission

Service Request Accept

Any Inter-

freq DRDcandidate

cell?

Inter-RAT

DRD

OterIAC

ProcessSuccess

YES

Success

Fail

Fail

No


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Contents


7030302 -nter8re.!ency DRD Overvie#

7030303 -nter8re.!ency DRD or Device /ype 1teering

7030307 -nter8re.!ency DRD or /echnological 1atisaction

703030> -nter8re.!ency DRD or 1ervice 1teering

703030? -nter8re.!ency DRD or :oad 'alancing

Page2!


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Algorithms o -nter8re.!ency DRD

/he RC perorms these DRDs in se.!ence" as sho#n in th

e above 8ig!re

Page2"


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Proced!re o -nter8re.!ency DRD

Page2#


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1ignaling o -nter8re.!ency DRD

Page2%


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Contents







Page2&


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Contents


703030302 /he Overvie# o -ntelligent -nter arrier :ayered

Management on U*s and Data ards 8eat!re

703030303 /he Process o DRD or Device /ype 1teering

703030307 /he Parameters o DRD or Device /ype 1teering

Page0

O i - t lli t - t C i : d


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Overvie# o -ntelligent -nterCarrier :ayeredManagement on U*s and Data Cards 8eat!re

Page1


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Process o DRD or Device /ype 1teering

Page2

D!ring a RA' set!p or a terminal" the RC perorms DRDsbased on the terminal type and the terminal device type pri

ority o cell$

- the s#itch speciied by DP9DRD1#itch is t!rned on" the

RC perorms DRDs based on the terminal type priority andallo#s the terminal to preerentially access a highpriority cell

- the s#itch speciied by DP9DRD1#itch is t!rned o" theRC perorms DRDs based on other interre.!ency DRD al

gorithms0


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Parameters o DRD or Device /ype 1teering

DP9DRD1#itch

Parameter ame $ Device /ype 1teering DRD 1#itch Recommended val!e $ O88

Page


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Contents







Page!


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Contents


703030702 Overvie#

703030703 Priority 1e.!ence o 41PA@ /echnologies

703030707 Proced!re or DRD or /echnological 1atisaction

Page"


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Principle o DRD or /echnological 1atisaction

Page#

/echnological satisaction reers to determining #hether acandidate cell satisies the technical speciications or certa

in services" s!ch as 41PA@ services

DRD or technological satisaction is !sed to select a s!itabl

e cell and 41PA@ technologies or a U* based on the 41PA@

technologies s!pported by the U* and the attrib!tes o the

re.!ested service" s!ch as the bearer channel" service type"

and service rate


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Processes o DRD or /echnological 1atisaction

Page$

1.Determines the HSPA+technologies that can beconfgured on the !

". Determines the HSPA+technological satis#action o#each candidate cell

$. Selects a suitable cell #or the !based on the %riorit& se'uence o#HSPA+ technologies


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Priority 1e.!ence o 41PA@ /echnologies

Page&

/he technological satisaction o a cell is determined by the41PA@ technologies that can be both conig!red on the U*

and s!pported by the cell0 - these 41PA@ technologies hav

e a high priority" the cell is considered to have a high techn

ological satisaction

/he 41PA@ technologies comprise DC41DPA" enhanced lay

er 3 (:3)" M-MO" >BAM" D/@DR" *DPCC4 'oosting" U: 2

BAM" and 411CC4 :ess Operation


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Priority 1e.!ence 2 o 41PA@ /echnologies

Page!0

When M-MO>BAMorDC41DPA1#itch is set to DC41DPA and M-MOor>BAM1#itch to M-MO " the priority se.!ence

is $

1. DC41DPA@M-MO

". DC41DPA(#ith do#nlin& >BAM activated in at least one cell)

$. M-MO@>BAM

(. DC41DPA (#ith do#nlin& 2BAM activated in at least one cell)

). M-MO@D: 2BAM

*. D: >BAM

. D: enhanced :3


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Priority 1e.!ence 2 o 41PA@ /echnologies (Cont00)

Page!1

When M-MO>BAMorDC41DPA1#itch is set to DC41DPA and M-MOor>BAM1#itch to M-MO " the priority se.!ence

is $

,. *DPCC4 'oosting

. U: 2BAM1. U: enhanced :3

11. D/@DR

1". 411CC4 :ess Operation


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Page!

When M-MO>BAMorDC41DPA1#itch is set to DC41DPA and M-MOor>BAM1#itch to >BAM " the priority se.!ence is

$

,. *DPCC4 'oosting


11. D/@DR



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Priority 1e.!ence 7 o 41PA@ /echnologies

Page!!

When M-MO>BAMorDC41DPA1#itch is set to M-MO5>BAM and M-MOor>BAM1#itch to M-MO " the priority se.!enc

e is $

1. DC41DPA@M-MO

". M-MO@>BAM$. DC41DPA (#ith do#nlin& >BAM activated in at least one cell)

(. M-MO@D: 2BAM

). D: >BAM

*. DC41DPA (#ith do#nlin& 2BAM activated in at least one cell). D: enhanced :3


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Page!"

When M-MO>BAMorDC41DPA1#itch is set to M-MO5>BAM and M-MOor>BAM1#itch to M-MO " the priority se.!enc

e is $

,. *DPCC4 'oosting


11. D/@DR



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Priority 1e.!ence > o 41PA@ /echnologies

Page!#

When M-MO>BAMorDC41DPA1#itch is set to M-MO5>BAM and M-MOor>BAM1#itch to >BAM " the priority se.!en

ce is $

1. DC41DPA@M-MO

". M-MO@>BAM$. DC41DPA (#ith do#nlin& >BAM activated in at least one cell)

(. D: >BAM

). M-MO@D: 2BAM

*. DC41DPA (#ith do#nlin& 2BAM activated in at least one cell). D: enhanced :3


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Priority 1e.!ence > o 41PA@ /echnologies (Cont00)

Page!$

When M-MO>BAMorDC41DPA1#itch is set to M-MO5>BAM and M-MOor>BAM1#itch to >BAM " the priority se.!en

ce is $

,. *DPCC4 'oosting


11. D/@DR



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Parameters o the Priority o 41PA@ /echnologies

M-MO>BAMorDC41DPA1#itch

Parameter ame $ Preered M-MO5>BAM or DC541DPA character

Recommended val!e $ DC541DPA

M-MOor>BAM1#itch

Parameter ame $ Preered M-MO or >BAM character Recommended val!e $ M-MO

Page!%


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Contents


703030702 Overvie#

703030703 Priority 1e.!ence o 41PA@ /echnologies

703030707 Proced!re or DRD or /echnological 1atisaction

Page!&


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Proced!re or DRD or /echnological 1atisaction

Page"0

/he Proced!re is same #ith the proced!re o interre.!ency DRD" only the description o step 3 is more detailed $

". /he RC selects a cell #ith the highest technological satisaction as the target cell0 - m!ltiple cells have the highest technological satisaction" the RC selects a s!itable cell based o

n DRD or service steering0 - m!ltiple cells have the highestservice priority" the RC selects a s!itable cell based on DRD or load balancing


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Contents


703030>02 Overvie#

703030>03 ell 1ervice Priorities

703030>07 Proced!re o DRD or 1ervice 1teering

703030>0> Parameters o DRD or 1ervice 1teering

Page"2


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/he Overvie# or DRD or 1ervice 1teering

Page"

- the U* re.!ests a service in an area covered by m!ltiplere.!encies" the RC selects the cell #ith the highest servi

ce priority or U* access" based on the RA' service type an

d the service priorities in the cells

/he availability o DRD or service steering is speciied by t

he 1erviceDiDrd1#itch parameter thro!gh MM: comm

and 1*/ UDRD (RC level s#itch) or ADD UC*::DRD (cell le

vel s#itch)


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Contents


703030>02 Overvie#




Page"!


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Principle o Cell 1ervice Priorities

Page""

A cell service priority is a servicespeciic priority or a cellamong cells in the same coverage area0 Cell service prioriti

es help achieve traic absorption in a hierarchical #ay


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Conig!ration o Cell 1ervice Priorities

Page"#

R!n the ADD U1P9 command to add a service priority gro!p" #hi

ch is identiied by the parameter 1pg-d

R!n the ADD UC*::1*/UP" MOD UC*::1*/UP" or ADD UC*::BU-C

%1*/UP command to assign the 1P9 identity to the cell

Cell

SPGIdenti

ty

ServicePriorityof R99

RTService

ServicePriorityof R99

NRTService

ServicePriority

ofHSDPAService

ServicePriority

ofHSUPAService

ServicePriorityof oterService

A 1 " 1 1 1 / " 1 "


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*+ample o DRD or service steering

Page"$

When selecting a target cell or RA' processing" the RC selects a

cell #ith a high priority" that is" a cell that has a lo# service priorit

y val!e


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Contents


703030>02 Overvie#




Page"%


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Proced!re o DRD or 1ervice 1teering

Page"&


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Contents


703030>02 Overvie#




Page#1


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Parameters o DRD or 1ervice 1teering

1erviceDiDrd1#itch

Parameter ame $ 1ervice 1teering DRD 1#itch character Recommended val!e $ O88

1pg-d

Parameter ame $ 1ervice priority gro!p -dentity Recommended val!e $ one

Page#2

Parameters o DRD or 1ervice 1teering (C


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Parameters o DRD or 1ervice 1teering (C ont00)

Page#

P!r!"eter P!r!"eter n!"e Reco""ended v!l#e

PriorityServiceForR99RT

Ser0ice %riorit& o# RRT ser0ice

1

PriorityServiceForR9

9NRT

Ser0ice %riorit& o# R

RT ser0ice

1

PriorityServiceForHSDPA

Ser0ice %riorit& o#HSDPA ser0ice

1

PriorityServiceForHSUPA

Ser0ice %riorit& o#HSPA ser0ice

1

PriorityServiceForExt Rab Ser0ice %riorit& o#2ther ser0ice 1


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Contents







Page#!


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Contents


703030?02 Overvie#

703030?03 Po#er'ased DRD or :oad 'alancing

703030?07 ode'ased DRD or :oad 'alancing

Page#"


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Principle o DRD or :oad 'alancing

Page##

- the U* re.!ests a service set!p or channel reconig!ration in an area covered by m!ltiple re.!encies" the RC sets

!p the service on a carrier #ith a light load to balance o!t t

he load among the cells on the dierent re.!encies0

-nterre.!ency DRD or load balancing also can be called i

nterre.!ency DRD or load sharing


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/ypes o DRD or :oad 'alancing

Page#$

DRD #or load balancing concerns two resources3

%ower and code 4ode-based DRD #or load balancing is a%%licable to

onl& R ser0ices because HSDPA ser0ices use

reser0ed codes

!oad Balancing

Power-based

DCH

HSDPA

Code-based


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Parameters o DRD or :oad 'alancing

Page#%


LdbDRDSwitchDCH 5oad balance DRDswitch #or D4H

266

LdbDRDSwitchHSDP A

5oad balance DRDswitch #or HSDPA

266

CodeBalancinDrdSwitch

4ode /alancing DRDSwitch

266


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Contents


703030?02 Overvie#


8or onD 41DPA 1ervices

8or D 41DPA 1ervices


Page#&

Algorithms o Po#er 'ased DRD or :oad


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Algorithms o Po#er'ased DRD or :oad'alancing

Page$0

Algorithm2 $ DRD or load balancing is perormed according to the cell meas!rement val!es or the D: non41DPA po

#er and D: 41D1C4 9'P(Po#er Re.!irement or 9'R)

Algorithm3 $ DRD or load balancing is perormed accordin

g to the DC4 e.!ivalent n!mber o !sers (*U) and 41DPA

!ser n!mber

Algorithm2 Case o Po#er 'ased DRD or


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Algorithm2 Case o Po#er'ased DRD or:oad 'alancing

Page$1

Cell ' has a lighter load o non41DPA po#er than cell A

Cell A has a lighter load o 41D1C4 9'P than cell '

Parameters o Po#er 'ased DRD or :oad


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Parameters o Po#er'ased DRD or :oad'alancing

Page$2

:dbDRDchoice

Parameter ame $ :oad 'alancing DRD Choice Recommended val!e $ User!mber

Proced!re o Po#er 'ased DRD or :oad


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Proced!re o Po#er'ased DRD or :oad'alancing

Page$


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Parameters o Po#er'ased DRD or :oad


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Parameters o Po#er'ased DRD or :oad'alancing

Page$#


DlConvA!RThdD5 threshold o# 4on0 A7Rser0ice

,8

LdbDRDLoadRe#a

inThdDCH

Dl load balance DRD %ower

remain threshold #or D4H$)8

DlCellTotalThd D5 total %ower threshold 8

LdbDRDLoadRe#ainThdHSDPA

Dl load balance DRD %owerremain threshold #orHSDPA

18

DlTotalE$U%erN&#

D5 total e'ui0alent usernumber

,

!axH%d'aU%erN&#

7a9imum HSDPA usernumber

*(

Condition 3 o Po#er'ased DRD or :oad


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Condition 3 o Po#er'ased DRD or :oad'alancing

Page$%

8or algorithm 2 DC4 1ervice$(/hdAMR"nbcell Pnon4"nbcell) (/hdAMR"c!tcell Pnon4"c!tcell) 6 /hdD"loadoset

(/hdtotal"c!tcell Pload"c!tcell) (/hdtotal"nbcell Pload"nbcell) E /hdtotal"loadoset

8or algorithm 2 41DPA 1ervice

(/hd total"nbcell P 9'P"nbcell ) (/hd total"c!tcell P 9'P"c!tcell ) 6 /hd 4"loadoset

(/hd total"c!tcell P load"c!tcell ) (/hd total"nbcell P load"nbcell ) E /hd total"loadoset

Condition 3 o Po#er'ased DRD or :oad


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Condition 3 o Po#er'ased DRD or :oad'alancing(Cont00)

Page$&

8or algorithm 3 DC4 1ervice$(/hdAMR"nbcell F PDen!"nbcell) (/hdAMR"c!tcell F PDen!"c!tcell) 6 /hdD"loadoset

8or algorithm 3 41DPA 1ervice

(/hd4!e"nbcell F P4!e"nbcell) < /hd4!e"nbcell (/hd4!e"c!tcell F P4!e"c!tcell) < /

hd4!e"c!tcell 6 /hd4"loadoset



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Parameters o Po#er 'ased DRD or :oad'alancing

Page%0

P!r!"eter P!r!"eter n!"eReco""end

ed v!l#e

LdbDRD()%etDCH5oad balance DRD o:set#or D4H

18

LdbDRD()%etHSDPA 5oad balance DRD o:set#or HSDPA 18

LdbDRDTotalPwrProT hd

5oad balance DRD total%ower %rotect threshold

$8


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Contents


703030?02 Overvie#


8or onD 41DPA 1ervices

8or D 41DPA 1ervices


Page%2

Po#er'ased DRD or :oad 'alancing


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Po#er 'ased DRD or :oad 'alancing(DC41DPA)

Page%

1tep 2 $ /he D 9ro!p #ill be decided by comparing the D: :o

ad bet#een the D 9ro!ps

1tep 3 $ And the Anchor arrier #ill be selected based on the

U: :oad o the 3 carriers belonging to the D 9ro!p



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Parameters o Po#er 'ased DRD or :oad'alancing(DC41DPA)

Page%!


UlLdbDRDSwitchDcHSD

PA

%lin; load balanceDRD Switch #or D4-HSDPA

2

UlLdbDRDLoadRe#ainT hdDcHSDPA

%lin; load balanceDRD remainthreshold #or D4-HSDPA

")8

UlLdbDRD()%etDcHSD

PA

%lin; load balanceDRD 2:set #or D4-

HSDPA

18

C


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Contents


703030?02 Overvie#



Page%"

C d ' d DRD : d ' l i


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Code'ased DRD or :oad 'alancing

Page%#

Parameters o Code'ased DRD or :oad


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Parameters o Code 'ased DRD or :oad'alancing

Page%$


CodeBalancinDrd!inSFThd

7inimum S6 Threshold #or 4ode/alancing DRD

S6,

CodeBalancinDrdCodeRateThd

4ode 2ccu%anc& Thres #or 4ode/alancing DRD

1$8

DeltaCode(cc&'iedRat e

Delta o# 4ode2ccu%anc&

8

C t t


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Contents


70302 Overvie#


70307 -nterRA/ DRD

Page%%

- t RA/ DRD


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-nterRA/ DRD

Page%&

P t - t RA/ DRD


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Parameters o -nterRA/ DRD

Page&0

'l ind4OPrio

Parameter ame $ 'lind 4andover Priority Recommended val!e $ one

DRMa+91M(!m

Parameter ame $ Ma+im!m /imes o -nterRA/ Direct Retry Recommended val!e $ 3

C t t


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Contents

70 RA' onPeriodic DRD

702 onPeriodic DRD Overvie#



Page&1

C t t


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Contents


70702 Overvie#

70703 M'DR Algorithm 1#itches

70707 M'DR Proced!re

Page&2

P i i l M'DR


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Principle o M'DR

Page&

With implementing M'DR(Meas!rementbased nonperiodi

c DRD )" interre.!ency or interRA/ meas!rement is pero

rmed

/he s!ccess rate o interre.!ency or interRA/ DRD can b

e ens!red even i the c!rrent cell and the DRD target cell co

ver dierent areas

M'DR algorithm cannot be !sed #ith blindhandoverbase

d periodic DRD sim!ltaneo!sly

1ignaling o -nter 8re.!ency M'DR


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1ignaling o -nter8re.!ency M'DR

Page&!

Contents


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Contents


70702 Overvie#



Page&"


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Parameters o M'DR Algorithm 1#itches


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Parameters o M'DR Algorithm 1#itches

Page&$


*nterFre$ActiveT y'e

Inter-#re'uenc&7/DR Switch

4SA7R4S2A7RPSRPSHSPA


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Proced!re o -nter 8re.!ency M'DR


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Proced!re o -nter8re.!ency M'DR

Page&&

1tep 2 $ ater an RRC connection set!p" the M'DR algorith

m can trigger the meas!rement o interre.!ency M'DR

1tep 3 $ the RC sends the U* an interre.!ency meas!re

ment control message" instr!cting the U* to meas!re the si

gnal .!ality o the interre.!ency M'DR neighboring cells

1tep 7 $ - the signal .!ality o the interre.!ency M'DR ce

lls meet the re.!irements" the RC prioriti,es these cells a

nd establishes service in the cell #ith the highest priority

Proced!re o -nter RA/ M'DR


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Proced!re o -nterRA/ M'DR

Page100

/he proced!re or the interRA/ M'DR algorithm is similar

to that or the interre.!ency M'DR algorithm

- the service type is C1 AMR" #hen the interre.!ency M'

DR algorithm s#itch and interRA/ M'DR algorithm s#itch

are enabled sim!ltaneo!sly" the U* selects the neighboring

cell #hose meas!rement report is received irst


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Contents


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Contents


70702 Overvie#



Overvie#

/rigger ondition o M'DR

M'DR /arget ell 1election

M'DR Meas!rement ontrol -tems

Page102

/rigger Conditions o M'DR


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/rigger Conditions o M'DR

Page10

i the M'DR algorithm is enabled or the service type to #hi

ch this RA' belongs" the RC triggers M'DR #hen either o

the ollo#ing conditions is met $ Uplin& admission threshold I M'DR congestion decision thres

hold J C!rrent cell load actor J Uplin& admission threshold

Do#nlin& admission threshold I M'DR congestion decision threshold J C!rrent cell load actor J Do#nlin& admission threshold

Parameters o /rigger Conditions o M'D


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R

Page10!

('MUlCacAlgo1el1#itch Parameter ame $ Uplin& CAC algorithm s#itch Recommended val!e $ one

('MDlCacAlgo1el1#itch

Parameter ame $ M'DR Cell Periority Recommended val!e $ ;

UserPercentage Parameter ame $ UserPercentage

Recommended val!e $ A::5U1*R

Parameters o /rigger Conditions o M'D


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R (Cont00)

Page10"

P!r!"eterP!r!"eter

n!"eReco""ended

v!l#e

UlNonCtrlThdForA!R5 threshold o#4on0 A7R ser0ice

)8

UlNonCtrlThdForNon

A!R

5 threshold o#4on0 non


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R (Cont00)

Page10#

P!r!"eter P!r!"eter n!"eReco""ended

v!l#e

*nterFre$Ul!bdr TriThre%hold

5 Theshold ,8

*nterFre$Dl!bdr TriThre%hold

D5 Theshold,8

*nterRatUl!bdrT riThre%hold

5 Theshold ,8

*nterRatDl!bdrT riThre%hold

D5 Theshold ,8

Contents


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Contents


70702 Overvie#



Overvie#




Page10$

M'DR /arget Cell 1election


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M'DR /arget Cell 1election

Page10%

Ater M'DR is triggered" the RC starts target cell selection

/here are t#o conditions or target cell selection $ - the c!rrent cell has only one M'DR neighboring cell" the R

C instr!cts U* to meas!re the neighboring cell" and establishes services in the cell #hen it meets the re.!irements0

- the c!rrent cell has more than one M'DR neighboring cell" the RC instr!cts U* to meas!re the neighboring cells" the RC prioriti,es these cells and establishes service in the cell #iththe highest priority

Parameters o M'DR /arget Cell 1election


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Parameters o M'DR /arget Cell 1election

Page10&

Ma+Att(!m

Parameter ame $ -nter8re. DRD Ma+ Attempt /imes < -nterRA/ DRD Ma+ Attempt /imes

Recommended val!e $ 2

Contents


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Contents


70702 Overvie#



Overvie#




Page110

-nter8re.!ency Meas!rement Control -tem


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s

Page111

1et the -nter8re.ReportMode parameter to $ P*R-OD-CA:5R*POR/-9 $ the U* reports meas!rement res!lt

s to the RC at an interval speciied by PrdReport-nterval 0 /hen" the RC determines #hether the signal .!ality o this interre.!ency cell meets the re.!irements according to the meas!rement res!lts and the trigger conditions

*K*/5/R-99*R $ the U* sends the RC a meas!rement report (3C) #hen the signal .!ality o the interre.!ency cell is higher than the trigger threshold or the period speciied by /rig/ime3C

-nter8re.!ency Meas!rement Control -tem


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s (Cont00)

Page112

1et the -nter8re.MeasB!anti ty parameter to$ *c


107/130


-nter RA/ Meas!rement Control -tems

Page11

1et the -nterRatReportMode parameter to $ P*R-OD-CA:5R*POR/-9 $ the U* reports meas!rement res!lts

to the RC at an interval speciied by -nterRA/PeriodReport-nterval 0 /hen" the RC compares the meas!rement res!lts #ith-nterRA/4O/hd to determine #hether the signal .!ality o thisinterRA/ cell meets the re.!irements

*K*/5/R-99*R $ the U* sends the RC a meas!rement report(7C) #hen the signal .!ality o the interRA/ cell is higher than the trigger threshold(speciied by the -nterRA/4O/hd parameter) or the period speciied by /rig/ime7C

Parameters o -nter8re.!ency M'DR


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Parameters o -nter 8re.!ency M'DR

Page11!


v!l#e

*nterFre$Re'ort!ode

Inter-#re'uenc&7easure Re%ort 7ode

!?!T

Parameters o -nter8re.!ency M'DR


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Parameters o -nter 8re.!ency M'DR

Page11#


v!l#e

*nterRatRe'ort!ode

Inter-RAT Re%ort 7ode !?!T


110/130


Contents

1. Overvie# o DRD

2. RR DRD


4. RA' Periodic DRD

Page11%

Contents


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Contents

4. RA' Periodic DRD

>02 Overvie#

>03 1#itches or Periodic DRD

>07 /riggering Periodic DRD

>0> Periodic DRD Proced!re

Page11&

Principle o RA' Periodic DRD


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Principle o RA' Periodic DRD

Page120

Periodic DRD co!ld be perormed ater RA' set!p or ater th

e bearer scheme is changed

-t can be perormed to select a s!itable cell #hen the RC de

termines that the U* can be served by a better 41PA


113/130


Contents

4. RA' Periodic DRD

>02 Overvie#




Page121

1#itches o RA' Periodic DRD


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Copyright © 2011 Huawei Technologies Co., Ltd. All rights reserved.Page122

RA' DRD or a single service or a combined service is enable

d only #hen the associated s!b parameter o Dr1#itch is sel

ected DR5RA'51-95DRD51W-/C4

DR5RA'5COM'5DRD51W-/C4 /he 'asedOnMeas4RetryDRD1#itch parameter !rther de

termines #hether to enable blindhandoverbased nonperio

dic DRD" blindhandoverbased periodic DRD" or meas!reme

ntbased periodic DRD

1#itches o RA' Periodic DRD(Cont00)


115/130


( )

Page12

When the 'asedOnMeas4RetryDRD1#itch parameter is set to O

DRD T&%es BlindDrdExce'tHRetrySwitch B OFF

/lind-Hando0er-

/ased

7easurement-

/asedPeriodic DRD Disable $n!%le

on-%eriodic

DRD

Disable $n!%le

DRD T&%es BlindDrdExce'tHRetrySwitch B ON

/lind-Hando0er-

/ased

7easurement-

/ased

Periodic DRD Disable $n!%le

on-%eriodic

DRD

$n!%le Disable

1#itches o RA' Periodic DRD(Cont00)


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( )

Page12!

When the 'asedOnMeas4RetryDRD1#itch parameter is set to O

88

Remar&$ 'lindhandoverbased periodic DRD is *nable i the Cha

nnelRetry/imer:en

parameter is not set to ;

DRD T&%es /lind-Hando0er-/ased 7easurement-/ased

Periodic DRD $n!%le&Re"!r'( Disable

on-%eriodic

DRD

$n!%le Disable

Contents


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4. RA' Periodic DRD

>02 Overvie#




Page12"

/rigger Conditions o Periodic DRD


118/130


gg

Page12#

41PA


119/130


gg ( )

Page12$

/he conditions !nder #hich an 41PA


120/130


gg g

Page12%

RetryCapabil i ty

Parameter ame $ 41PA /echnologies Retried by U*s Recommended val!e $ 1R'5OK*R541DPA$O" 1R'5OK*R541U

PA$O" //-53M1$O" M-MO$O" >BAM$O" :35*4AC*$O"D/5DR$O" 411CC45:*115OP*RA/-O$O" M-MO5>BAM$O88" DC541DPA$O88" U:5:35*4AC*$O88" U:52BAM$O88" *DPCC45'OO1/-9$O88" DCM-MO541DPA$O88

Contents


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4. RA' Periodic DRD

>02 Overvie#




>0>02 'lind4andover'ased Periodic DRD

>0>03 Meas!rement'ased Periodic DRD

Page12&


122/130

Proced!re o 'lind4andover'ased Periodic DRD


123/130


c DRD

Page11

Contents


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4. RA' Periodic DRD

>02 Overvie#




>0>02 'lind4andover'ased Periodic DRD

>0>03 Meas!rement'ased Periodic DRD

Page1

Application 1cenario o Meas!rement'ased Periodic DRD


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d Periodic DRD

Page1!

Meas!rementbased periodic DRD applies to the ollo#ing sc

enarios" -t selects the target cell according to the signal meas

!rement res!lts to increase the DRD s!ccess rate $ -nterre.!ency samecoverage scenario

-nterre.!ency dierentcoverage scenario Precondition o Meas!rement'ased Periodic DRD $

DR5RA'51-(95DRD51 -/C4 or DR5RA'5COM'5DRD51 -/C4 s!b parameter o Dr1#itch is set to O

'asedOnMeas4RetryDRD1#itch parameter is set to O


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Parameters o Meas!rement'ased Periodic DRD


127/130


dic DRD

Page1$

P!r!"eter P!r!"eter n!"e

Reco""ended

v!l#e

Drd(rLdrFla Drd2r5dr6lag 6A5S!

HRetryTi#erLenth

DRD 7easurementPeriod Retr& Timer5ength

1s

PrdRe'ort*nterval Inter-6re'uenc& Periodic7easurement Re%ortInter0al

D$

TaretFre$ThdR%c '

Target 6re'uenc& RS4P Trigger Threshold

-" d/m

TaretFre$ThdEcN-

Target 6re'uenc& !co Trigger Threshold

-1" d/

DrdFaiPenaltyPeri odN

DRD 7easurement6ailure Punish Periods

1

1!mmary


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DRD RRC Phase

RRC DRD

– 'lindhandoverbased

Page1&

SET UCORRMALGOSWITCH

SET UDRD

ADD/MOD UINTERFREQNCELL

ADD/MOD U2GNCELL

1!mmary(Cont00)


129/130


RA' Phase D!ring RA' *stablishment

(onPeriodic DRD)

– 'lind4andoverbased

– Meas!rementbased

Ater RA' *stablishment

(Periodic DRD)

– 'lind4andoverbased

– Meas!rementbased

Page1!0


SET UDRD

ADD/MOD UCELLDRD

ADD UINTERFREQNCELL

ADD U2GNCELL

ADD UCELLMBDRINTERFREQ

ADD UCELLMBDRINTERRAT


SET UDRD

ADD/MOD UCELLDRD

ADD UINTERFREQNCELLADD/ MOD UCELLMCDRD


130/130

Thank you

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