Consultation Paper on Quality of Service (QoS) - ICTA

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A.2.3 QoS Parameters for SMS and MMS Short Message Service (SMS) and Multimedia Message Service (MMS) are two services generally provided by mobile service providers. The ETSI EG 202 009-V1.2.2 (2007-01) specifies some user-related parameters for the SMS and MMS. Some of these parameters and their definitions are summarised herein. Table A9: Parameters for SMS Parameter Measure Successful SMS Ratio Completion Rate for SMS End-to-end delivery time for SMS Delivery time of the message delivery notification Probability that a user can send a SMS successfully from a terminal equipment to a SMS Centre: - % of successfully sent short messages; - Number of observations used and the absolute accuracy limits for 95% confidence calculated from this number. Ratio of correctly send and received SMS between two terminal equipments. The following statistics should be provided separately: - Ratio of successfully send and received short messages; - Number of observations used and the absolute accuracy limits for 95% confidence calculated from this number. It is the period starting when sending an SMS from a terminal equipment to an SMSC and finishing when receiving the very same SMS on another terminal equipment. The following statistics should be provided separately: - The mean value in seconds for sending and receiving short messages; - The time in seconds within which the fastest 95% of short messages are sent and received; - The number of observations performed. Maximum, mean value and standard deviation of the time to receive the delivery notification 37
Parameter Successful MMS Ratio Completion Rate for MMS End-to-end delivery time for MMS Delivery time of the message delivery notification Table A10: Parameters for MMS Measure Probability that a user can send a MMS successfully from a terminal equipment to a MMS Centre: - % of successfully sent MMS; - Number of observations used and the absolute accuracy limits for 95% confidence calculated from this number. Ratio of correctly send and received MMS between two terminal equipments. The following statistics should be provided separately: - Ratio of successfully send and received multimedia messages; - Number of observations used and the absolute accuracy limits for 95% confidence calculated from this number. It is the period starting when sending a MMS from a terminal equipment to an MMSC and finishing when receiving the very same MMS on another terminal equipment. The following statistics should be provided separately: - The mean value in seconds for sending and receiving MMS; - The time in seconds within which the fastest 95% of MMS are sent and received; - The number of observations performed. Maximum, mean value and standard deviation of the time to receive the delivery notification A.3 Internet Services Users’ expectations of service quality of the Internet vary from application to application. For instance QoS for real-time applications (e.g. voice) differ from QoS for non-real-time applications (e.g. email). As mentioned earlier, for the Internet-based applications, user’s perspective of quality and reliability is characterised by the Accessibility (A), Continuity (C) and Fulfilment (F) framework. Therefore the approach for identifying and defining performance parameters is to define the ACF parameters impacting the quality of the specified transaction for each of the corresponding applications. In monitoring performance parameters, monitors may involve users in making measurements by distributing test tools and collecting test results. A.3.1 Classes of Service ITU-T groups IP telecommunication transactions into six unique classes defined according to the desired performance QoS objectives. Definition for each class of service is given in ITU-T Recommendation Y.1541. Table A11: Classes of Service Class Application type Mean Delay Delay Variance Loss Ratio Application examples Upper Bound Class 0 Real-time, highly interactive, sensitive to jitter 100 ms
Page 1 and 2: Information & Communication Technol
Page 3 and 4: GUIDELINES ON RESPONDING TO THIS CO
Page 5 and 6: List of Abbreviations ACF ASR ETNO
Page 7 and 8: Table 1: Characteristics distinguis
Page 9 and 10: standard should also contain guidel
Page 11 and 12: Therefore while proposing a definit
Page 13 and 14: quality on international calls. The
Page 15 and 16: ACMA publishes the Quarterly Teleco
Page 17 and 18: 4. PROPOSED QOS MONITORING FRAMEWOR
Page 19 and 20: calling party. Ratio of unsuccessfu
Page 21 and 22: working order i.e. the user is able
Page 23 and 24: Q.5 Do you agree with the proposed
Page 25 and 26: Definition The ratio of successful
Page 27 and 28: Only part of the measurements may b
Page 29 and 30: ANNEX A- QUALITY OF SERVICE STANDAR
Page 31 and 32: within the customer premises equipm
Page 33 and 34: The ETSI EG 202 057-3 V1.1.1 (2005-
Page 35 and 36: pack in more users on a given bandw
Page 37: Table A7: Proposed (average) target
Page 41 and 42: ETSI EG 202 009 (2007-01) provides
Page 43 and 44: Unlike ASR, NER excludes the effect
Page 45 and 46: 50 R < 60 Poor Nearly all users di

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