End-to-end QoS in the users' point of view ITU-T Workshop
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Transcript End-to-end QoS in the users' point of view ITU-T Workshop
End-to-end QoS
in
the users' point of view
ITU-T Workshop
Geneva 1-3 October 2003
P-Y Hébert - ETSI
1/10/2003
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QoS in the current Telecom world
With the various emerging technologies
(Mobiles network, VoIP,VPN) and the current
competition Telecom service are delivered
with very different QoS levels.
To get the QoS they expect users have to
rely on regulation or on agreement with their
supplier
In any case, standards are needed to
monitor the QoS provided.
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Users' concerns and
QoS standards
Today, any technical body in any
standardization organization refers to users'
QoS requirements.
Each of these TBs has different purposes:
means to improve the technical QoS
measurement methods of the QoS
definition of QoS service classes
All of them have in mind the technical quality
Few of them are taking into account the
users' concerns about the QoS
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Users' concern fields about QoS
Service fields
Provision
Operation
Customer services
Billing
Other services
Market areas
Voice
Data
Internet access
Private/public networks
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Users' QoS criteria (1)
Provision
Preliminary information
Completion efficiency
Respect of allotted time
Contract clarity
Contract flexibility
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Users' QoS criteria (2)
Operation
Service availability
Coverage (mobile networks)
Unsuccessful call ratio
Set-up swiftness
Absence of dropouts
Speech or data quality
Flow rate or transactions time
Exchange security
Terminal protection
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Users' QoS criteria (3)
Customer services
Swiftness of after-sales service to answer calls
Swiftness to repair
Availability of operator services
Efficiency of help line
Number of call to report fault.
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Users' QoS criteria (4)
Billing
Accuracy (counting and tariff)
Number of claims
Other services
Directory service availability
Response time
Relevance of the answers
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Standards focusing
on users' expectations
ITU-T Recommendation E.800:
"Telephone network and ISDN quality of service,
network management and traffic engineering:
Terms and definitions related to quality of service
and network performance including
dependability".
ETSI NA (SPAN) ETR 003 (1994-10)
General aspects of Quality of Service (QoS) and
Network Performance (NP)
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Standards focusing
on users' expectations
ETSI STQ EG 201 769 (2000-10)
QoS parameter definitions and measurements;
Parameters for voice telephony service required
under the ONP Voice Telephony Directive
98/10/EC
ETSI UG EG 202 009 (2002-02)
Quality of Telecom Services
Part 1: Methodology for identification of parameters
relevant to the Users
Part 2: User related parameters on a service specific
basis
Part 3: Template for Service Level Agreements (SLA)
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Lacks in current standards
Provision
Preliminary information
Completion efficiency
Respect of allotted time
Contract clarity
Contract flexibility
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Lacks in current standards (2)
Operation
Service availability
Coverage (mobile networks)
Unsuccessful call ratio
Set-up swiftness
Absence of dropouts
Speech or data quality
Flow rate or transactions time
Exchange security
Terminal protection
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Lacks in current standards (3)
Customer services
Swiftness of after-sales service to answer calls
Swiftness to repair
Availability of operator services
Efficiency of help line
Number of call to report fault.
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Lacks in current standards (4)
Billing
Accuracy (counting and tariff)
Number of claims
Other services
Directory service availability
Response time
Relevance of the answers
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The Challenge
How to better take into account
the users' concerns about
QoS regulation and standardization
and how to fill the current gaps
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