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QoSQoSRecherche des critères, paramètres Recherche des critères, paramètres

et indicateurs et indicateurs pertinents pour les utilisateurspertinents pour les utilisateurs

Réunion QOSTICParis 10 Décembre 2003P-Y Hébert - AFUTT/ETSI

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Lacks in current standardsLacks in current standards

In the following slides: This colour means: QoS parameter covered in one existing

standard from the end-user point of view This colour means: QoS parameter covered in one existing

standard for measurement method

Therefore work is needed everywhere it's blue

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Lacks in current standardsLacks in current standards

ProvisionPreliminary information Supply time for service accessCompletion efficiencyContract clarityContract flexibility

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Lacks in current standards (2)Lacks in current standards (2)

OperationService availabilityCoverage (mobile networks)Unsuccessful call ratioSet-up swiftness Absence of dropoutsSpeech or data qualityFlow rate or transactions timeNumber of call to report fault.Exchange security Terminal protection

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Lacks in current standards (3)Lacks in current standards (3)

Customer servicesSwiftness of after-sales service to answer callsEfficiency of after-sales service Swiftness to repairAvailability of operator servicesEfficiency of help line

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Lacks in current standards (4)Lacks in current standards (4)

BillingBill correctness/Accuracy (counting and tariff)Bill presentation qualityNumber of claimsResponse time for admin/billing enquiries

Other services Directory service availability

Response time Relevance of the answers

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Next steps:Next steps:

EG 202 009 QoS parameters review

EG 202 009 revision

Have it acknowledged by the European and national regulation

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EG 202 009 Parameter ReviewEG 202 009 Parameter Review Each QoS parameter belongs to one of the

4 following QoS CriteriaAvailabilityReliabilityResponse timeCapacity

A set of parameters is to define (incl. acceptable range) in each of the application segments and subsegments:AudioVideoDataBackground applications and Others

FaxNewsgroups, etc

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EG 202 009 Parameter Review (ctd)EG 202 009 Parameter Review (ctd)Application segments and subsegmentsApplication segments and subsegments

Audio:TelephonyVoice messagingStreaming audio

Video:VideophoneOneway video

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EG 202 009 Parameter Review (ctd)EG 202 009 Parameter Review (ctd)Application segments and subsegmentsApplication segments and subsegments

Data:Web browsingBulk data transfer/retrieval (FTP)High priority transaction services (E-commerce)Command/controlStill image Interactive gamesTelnetE-mail (Server Access) Instant messaging

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EG 202 009 Parameter Review (ctd)EG 202 009 Parameter Review (ctd)Application segments and subsegmentsApplication segments and subsegments

Background applications:FaxLow priority transaction services (SMS)E-mail (server to server transfer)Newsgroups (Usenet)

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QoS Parameter Review (ctd)QoS Parameter Review (ctd)

The existing EG 202 009 parameters have to be reviewed to conform to the 4 criteria and appropriate segmentation

The missing QoS Parameters shall be defined

A tentative framework for this revision for discussion during this meeting

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EG 202 009 revisionEG 202 009 revision

Provision: a lot to addOperation: several aspects to add

Mobile QoS (coverage, GPRS, etc)Internet QoS.Exchange security Terminal protectionetc

Customer servicesBilling

Correctness/Accuracy Bill presentation quality Response time for admin/billing enquiries

and many others ...

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EG 202 009 revisionEG 202 009 revision

Beside the parameter review, provide guidance to the user needs analysis for the definition of appropriate classes of services (Part 1) see ITU-T G1010

In addition to the end-to-end QoS concept (same parameter whatever the bearer network) define the perimeter for QoS parameter measurement.

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EG 202 009 revision (ctd)EG 202 009 revision (ctd)

Tentative measurement perimeters:Over the supplier networks

Switched communications over fixed networkSwitched communications over mobile network Switched communications from fixed to mobile terminals Switched communications from mobile to fixed terminals IP communications over fixed networkIP communications over mobile network

Switched communications over international fixed networks

Switched communications over international Mobile Networks

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THANKS FOR YOUR ATTENTIONTHANKS FOR YOUR ATTENTION

Comments welcomed