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CAC : Call Admission Control

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Basic procedure for a resource-based adm

Code resource-based admission succeeds if

the remaining code resources are sufficient for

the service to be admitted.

Available cell code resources

Available cell power resources

NodeB credit resources, which are used to

measure the channel demodulation capability of

NodeBs

Available ub transmission bandwidth

Number of !"#PA users $only for !"#PA services%

Number of !"&PA users $only for !"&PA services%

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NodeB Credit Resource-based CAC

On RRC Connection Setup Requests AMR Connection Setup

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Iub & Code Resource-based CAC

Iub Transmission Resource-based CAC

Iub transmission resource-based CAC applies to R99, HSDPA, and HSUPA services in both

uplink and donlink!

Cell Code Resource-based CAC

Cell code resource-based CAC applies to R99 services onl" in donlink! Cell code resource-based CAC does not appl" to HSDPA services because code resource

have been reserved #or HSDPA services! In addition, these resources can be shared b" HSDPA

services!

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CAC Based on the Number of S!A "s

CAC Based on the Number of S!A "sers

$he number o# HSDPA%HSUPA users in the cell is less than or e&ual to the threshold speci#ieMaxHsdpaUserNum/ MaxHsupaUserNumonce the HSDPA%HSUPA service is admitted!

$he number o# HSDPA%HSUPA users in the cell is less than or e&ual to the licensed limit on

HSDPA%HSUPA service is admitted!

$he number o# HSDPA%HSUPA users in the 'ode( is less than or e&ual to the threshold spec

NodeBHsdpaMaxUserNum/NodeBHsupaMaxUserNum once the HSDPA%HSUPA service

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Cell !o#er Resource-based CAC

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Cell !o#er Resource-based CAC

$o#nlin% !o#er-Based Admission $ecision for S!A Cells Based on Alorithm '

P(R-based decision) $he P(R o# all e*istin+ services must +reater than or e&ual to the admissio

HsdpaStrmPBRThd(HsdpaBePBRThd!

oad-based decision) $he total donlink load a#ter the ne RA( access must be less than or

threshold o# the total donlink poer o# the cell .DlCellTotalThd/!

!o#er-Based Admission Alorithm ' for RAB Setup in $)

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Cell !o#er Resource-based CAC

!o#er-Based Admission Alorithm * for RAB Setup in ")

Based on +qui,alent Number of "sers

$he 01!1 kbit%s A2R tra##ic is de#ined as one 3'U

In the normal state, hen the uplink 3'U admission #or a ne RA( is implemented, the R'C cal

3'U o# the RA(, and then estimates hether the ratio o# the total uplink 3'U a#ter the ne R

ma*imum 3'U .UlTotalEqUserNum/ is less than or e&ual to the cell uplink admission thresh

t"pe o# service! $he threshold ma" be UlNonCtrlThdForAMR, UlNonCtrlT

UlNonCtrlThdForther, or UlNonCtrlThdForHo! I# the condition is met, the R'C admits the ac

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Thank foryour

Attention