qos_hs

7/17/2019 QOS_HS

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WCDMA RAN QOS

7/17/2019 QOS_HS


Contents

• QoS Background• Radio Access Network QoS Overview

• Allocation Retention Priority (ARP

• !ra"c #andling Priority (!#P

• Con$gura%le trans&ort %earer QoS class

• 'eature Reuire)ent * Con$guration• +esson +earned

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No QoS Mec,anis)s !,e &ro%le) o- un %alance load distri%ution

Shared Transmission Capacity

(radio access and/or transport link)

“Heavy ” Users

Intern

Acce

Problem: How to Limit the Traffic

Load from Heavy Users?

“Normal” Users

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O&erator alternatives w,en increasingMo%ile %road%and su%scri%er %ase

• Alternative 1 : Do not,ing wit, resulting

slow data rate &er user

• Alternative 2 : .ncrease ca&acity

• Alternative 3 : QoS di/erentiation %etween users

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QoS Classes on 0M!S Bearer12PP Standard

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QoS #andlingStandardisation 3iew

Packet

Core Network

Radio

Network

1. Attach request

HR

2. !" requests

subscriber data from

HL# $subscribed %o&

'. !" stores the

user(s subscriber data

). Attach acce*t

Ser!ice "ware

Policy Controller

S"SN

!+,!+,

GGSNSGSN#G%RNCR$S IP

Backbone

R"N"P/I&• Tra''ic Class

• #aim&m $it Rate

• Trans'er elay

• G&aranteed $it Rate

• Tra''ic Handlin* Priority

• "llocation/retention prio+

• +++

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QoS #andlingRadio Access Network

Radio

Network

RNCR$S

RNC

Con'i*&ra,le

-oS

#appin*("RP/THP/SPI)

"dmission

.

Con*estion

Control

Transmission

"dmission

Sched&lin*

0low Control

R$S

Radio

Sched&lin*

SGSN

CN sends QoS parameters to RAN at RAB re!est

HSPA s"ared

reso!rce

allocat#on

Transmission

"dmission

Sched&lin*

0low Control

%a

Qo

CN

RN

pa

'orks at

Connect#on

Set!p

'orks at

Con$est#on cell

R"N"P/I&• Tra''ic Class• #aim&m $it Rate

• Trans'er elay

• G&aranteed $it Rate• Tra''ic Handlin* Priority

• "llocation/retention prio+

• +++

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RANAP .n-or)ation 4le)entRAB Assign)ent Reuest

Traffic class 'conversational', 'streaming', 'interactive', 'bac

Maximum bit rate

Guaranteed bit rate

Delivery order

Maximum SDU size

SDU format information

SDU error ratio

Residual bit error ratio

Delivery of erroneous SDU

Transfer delay

Traffic handling priority

AllocationRetention !riority

Source statistics descriptor 'speech/u

Signaling "ndication

R"N"P1 3GPP TS 2+453 6

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QoS #andlingW,ere Prioritisation Works5

• Accessing t,e network 6 Ad)ission Control

• Deter)ined %y ARP (Allocation7Retention Priority

• W,o gets ,ig,er &riority to access t,e network

• W,o gets down switc,ed or &re8e)&ted

• Congestion resolving action 6 Congestion Control

• Deter)ined %y ARP (Allocation7Retention Priority

• W,o gets released w,en t,e cell is congested

• On8going data trans-er 6

• Deter)ined %y THP (!ra"c #andling Priority9 !#P will %e )a&&ed to SPI (Sc,eduling Priorw,ic, is t,e internal &ara)eter in RAN

• W,o gets )ore resource w,en it is li)ited

• MBR (Ma:i)u) Bit Rate will in;uence t,e RAN algorit,)

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Allocation and Retention Priority (ARP

• !,is ena%les t,e o&erator to reali<e a &er8user di/erentiation (gold= silver=%ron<e and a &er8service di/erentiation (voice= video= PS call etc

• 0sed at ad)ission and congestion control algorit,)

• A&&lica%le to all R>> call ty&e

• ?@ &riority levels are availa%le

• O&erator con$gura%le

• Pre8e)&tion is su&&orted

• RAN receive ARP attri%ute -ro) CN at RAB assign)ent reuest )essa

and )a&&ed it into internal &riority

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!ra"c #andling Priority(!#P

(HP real#)es a *er-user d#&&erent#at#on #n t"e QoS

d#&&erent#at#on *l#ke $old+ s#lver and bron)e s!bscr#pt#ons,

CN pr#or#ty sett#n$

-.per#enced b#t rate

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!ra"c #andling Priority(!#P

• !#P? is always t,e one wit, t,e ,ig,est t,roug,&uts= w,ile !#P1 e:&erient,e &oorest t,roug,&uts9

• !,e &riority is also ke&t in cases w,ere only !#P and !#P1 are &resent9 .nt,is case !#P ac,ieves t,e %est &er-or)ance9

• .n cases w,ere neit,er !#P? nor !#P are not active= all t,e resources canused %y !#P19

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ARP vs9 !#P

• !#P is used to deter)ine w,ic, user= active in t,network= s,all ,ave t,e ,ig,er &riority in a congsituation

• ARP is used to deter)ine w,ic, user s,all %e

downgraded or )oved out o- t,e network $rst toroo) to )ore &rioritised users w,o want to accenetwork

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Su%scri&tion8%ased user di/erentiation

• RNC li)its t,e downlink %it rate -or R>>

• RBS li)its t,e downlink %it rate -or #SPA• RBS li)its t,e u&link %it rate o- t,e 04

Ma:i)u) Bit Rate(MBR

:;R$SRNC

-nables s!bscr#pt#on based !ser d#&&erent#at#ons

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Ma:i)u) Bit Rate(MBR

• RAN will %e a%le to read t,e MBR value -ro) Core Network= and e:ecute t,e %it rate li)itation

• C,annel Switc,ing algorit,) in PS R>> (0& switc, to ,ig,er rate t,an MBR &revented

• 'low Control algorit,) in #SDPA and Sc,eduled grant algorit,) in 40+

• Adust t,e PS interactive rate accordiong to t,e MBR attri%ute

• Service or user di/erentiation (e9g9 gold= silver= %ron<e %y di/erent )a:i)u) %it rate

$ron<e

Sil!er

Gold

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'eature Reuire)ent

• 'le:i%le QoS and Allocation7Retention #andling• !ra"c #andling Priority

• #SDPA QoS Sc,eduler

• 40+ QoS Sc,eduler

• Ma: %it rate ca&a%ility -or QoS &ro$ling

• #SDPA MBR -or QoS &ro$ling

• Con$gura%le trans&ort %earer QoS class

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Allocation7Retention &riority+icense and Para)eter Activation

• RNC

• +icense 6• 'A ?? ?>1= 'le:i%le QoS and Allocation7Retention #andling

• Para)eter 6

• QosMa&0+

• QosMa&D+

• 'le:Ar&Ma&

• QoS !a%le Con$guration• Ar&QosClassPro$le

• !ra"cClass

• !ra"cClassPs.nt

• RBS

• +icense 6

• 'A ?? ?>1= 'le:i%le QoS and Allocation7Retention #andling

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!ra"c #andling Priority+icense and Para)eter Activation

• RNC

• +icense 6• 'A ?? ?>@= !ra"c #andling Priority

• Para)eter 6

• !,&Su&&ort#s&a

• QoS !a%le Con$guration

• RnlQosClassPro$le

• !ra"cClassPs.nt

• S&iQosClass

• RBS

• +icense 6

• 'A ?? ?>@= !ra"c #andling Priority

• 'A ?? ???E= #SDPA QoS Sc,eduler

• 'A ?? ????= 40+ QoS Sc,eduler

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Con$gura%le trans&ort %earer QoS class +icand Para)eter Activation

• RNC

• +icense 6• 'A ?? >FF= Con$gura%le trans&ort %earer QoS class

• Para)eter 6

• !nlQosMa&

• QoS !a%le Con$guration 6

• !nl.uQosClassPro$le• !nlDc,QosClassPro$le

• RBS

• +icense 6

• 'A ?? >FF= Con$gura%le trans&ort %earer QoS Class

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Ma:i)u) Bit Rate+icense and Para)eter Activation

• RNC

• +icense 6• 'A ?? ?>?= #SDPA MBR -or QoS &ro$ling

• Para)eter 6

• #sM%rQoSPro$ling

• 4ulM%rQosPro$ling (.- 40+ was activated


• No ta%le con$guration is reuired

• RBS

• +icense 6

• 'A ?? ?>?= #SDPA MBR -or QoS &ro$ling

• 'A ?? @E= Ma: %it rate ca&a%ility -or QoS &ro$lling

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Con$gura%le trans&ort %earer QoS class +icand Para)eter Activation

• RNC

• +icense 6• 'A ?? >FF= Con$gura%le trans&ort %earer QoS class

• Para)eter 6

• !nlQosMa&


• !nl.uQosClassPro$le• !nlDc,QosClassPro$le

• RBS

• +icense 6

• 'A ?? >FF= Con$gura%le trans&ort %earer QoS Class

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G+ !ra"c !y&e

PR.OR.!H PROD0C! !#P ARP

? 8Reserved8 ? ?

PP I PAH0 (Pre&aid= Post&aid 0nli)ited= #otrod Pre)iu) ?

1 PP I PAH0 (Post&aid ? 1

@#otRod= Begadang= G)art&lan= BlackBerry= Su&er Nge%ut= SP Be%as= #otRod Pre)iu)= G+

0nli)ited= and A:is BB ?

E 8

F 8 1

J A:is 0nli)ited * A:is PP 1 ?

L 8 1

> 8 1 1

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.P RAN QoS !a%le

Microso-t 4:cel

81 Works,e

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Q * A

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