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Course Content

Radio Resource Management OverviewParameter Configuration

Common Channels & Power Control

Load Control

Admission Control

Packet Scheduling incl. HSPA

Handover Control

Resource Manager

HSPA RRM and arameters

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Module O!"ectives

At the end of the module you will e ale to!

" Descrie the #ur#ose of $$%

" &ist the $$% functional entities

"Descrie the #ur#ose of each of the $$% functional entities

" Identify the location of $$% entities

" Identify relationshi#s etween $$% entities

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Radio Resource Management Overview

" Introduction

" &oad Control (&C)" Admission Control (AC)

" Packet Scheduler (PS) incl* +SPA

" Power Control (PC)

"+andover Control (+C)

" $esource %ana,er ($%)

" $$% of +SPA

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Radio Resource Management

.ar,et for $$% is to ensure the $AN offers!

" .he #lanned coverage for each tar,eted service

" +i,h capacity i*e* low lockin, (new calls handovers)

" .he re0uired uality of Service (oS)

" #timi3e the use of availale ca#acity (#riorities)

4y continuously monitorin,/ad5ustin, how the availale resources are used in accordance

with user re0uests

dio Resource Management (RRM) is responsible for optiutilisation of the air interface resources

RRM

Link Quality

Cell CoverageCell Capacity

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RRM #asks

" $$% must e ale to!

" Predict the im#act on interference (#ower) ofthe admittin, a new user for 7& 8 D&

" Perform a##ro#riate actions (e*,* new call

admissions itrate increase/decrease etc*) in

accordance with #revailin, load conditions

" Provide different 0uality of service for realtime ($.) and non9real time (N$.) users

" .ake a##ro#riate corrective action when the

different cell load thresholds are e:ceeded in

order to maintain cell staility (i*e* load

control)

Overload

Load Target

Overload Margin

Power

Time

Estimatedcapacity forNRT tracMeasured loadcausedby non-controllableload (RT)

RT services must have hiher !uality assurancethan NRT

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" $$% is made u# of a numer of closely interde#endent functions (i*e*

al,orithms)

" .hese functions can e divided into:?%M.Pac7et data schedulin (short TTA)

New base station functions.#%R? retransmissions.ModulationKcodin selection (>:?%M.Pac7et data schedulin (short TTA)

1E>

C B C D C : C J C > C C > B C > D C - B

C

B

D

:

J

> C

> B

> D

> :

T i m e H n u m b e r o f T T A s I

? P & L > K D

? P & L B K D

? P & L 8 K D

> : ? % M B K D

> : ? % M 8 K D

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"omparin #&1P% to R66 and #&P%

.#&1P% is a mar7etin name for 89PP Rel: ;Enhanced-"# #%R? alorithms (""@ AR)

.Bms or >Cms TTA periods

.&oft #andover

.very small &, (B@D)

,eature

Rel66

"#

Rel

#&P%

Rel:

#&1P%

Far' spreadin factor G N G

,ast power control G N G

%daptive modulation N G N

=*T& based schedulin N G G

,ast $> #%R? N G G

&oft #andover G N G

TTA lenth HmsIJC@DC@BC@>

C B >C@B