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Issues Discussed in Conference Call - Dec 7

Issues Discussed in Conference Call - Dec 7. Reviewed list of open issues Evaluation Criteria Status Report from the Plenary updated To include comments discussed in the conference call (CC) To associate contributions discussed in the Plenary with the corresponding open issues

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Issues Discussed in Conference Call - Dec 7

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  1. Issues Discussed in Conference Call - Dec 7 • Reviewed list of open issues • Evaluation Criteria Status Report from the Plenary updated • To include comments discussed in the conference call (CC) • To associate contributions discussed in the Plenary with the corresponding open issues • Updated status report posted in the Document Drop Box as (04/80r1) • Reviewed Contribution 04/88 that addressed: • Section 3.2: Performance metrics • Section 4.3.8: Video source coding rate – Dan Gal volunteered to further research on the issue • Discussed plans for resolving the open issues before January's Interim meeting • Dec 21 CC: Discuss contribution 04/89 and resolve open issues as listed in 04/80r1 • Jan 11 CC: Discuss gaming model contribution (04/86) and any other traffic models as available C802.20-05-04r3

  2. Issues Discussed in Conference Call - Dec 21 • Discussed contribution 04/89 on noise model text • Presented by David Huo • Discussed objective and how the model affect the current evaluation methodology • Contribution updated (04/89r1) to clarify the effects on maximum achievable system C/I • Reviewed contribution 04/83r1 on system calibration • Assumption on shadow fading standard deviation clarified • Fixed user locations suggested for calibration – contribution invited for further details • Contribution updated (04/83r2) to clarify and correct typos on the assumptions C802.20-05-04r3

  3. Issues Discussed in Conference Call – Jan 11, 05 • Reviewed gaming traffic model contribution (04/86) • Presented by Jim Tomcik • Differences between 3GPP/3GPP2 Internet gaming models discussed • 3GPP2 model based on Farber’s models for First Person Shooting game type • Basis of 3GPP model, and differences between forward and reverse links to be further verified • Further updates on gaming model to be discussed in Interim meeting • Discussed video source coding rate – email message on the reflector • Presented by Dan Gal • Survey of ITU audio/video source coding rate standards • Summary on the multimedia source coding requirements in 2G/3G standards • Further details to be discussed in Interim meeting (05/11) C802.20-05-04r3

  4. Open Issues in Traffic Models • Traffic models • VoIP model • Related contributions: 04/12, 04/37, 05/05 • Complete, specific model not available • Internet gaming model • Contribution 04/86, 05/06 • Additional contributions expected in January Interim meeting • Need to determine the best option • Video streaming model • Contribution 04/88, 05/11 • Other new contributions expected in January Interim meeting • Need to select an appropriate source data rate for evaluation • Traffic model mix • Contribution 04/85r1 • Need to determine the percentage mix for simulating the desired traffic models as listed in the phase approach table C802.20-05-04r3

  5. Open Issues in Evaluation Criteria Document V.12 • System Calibration • Part of Phase 1 evaluation • Contribution 04/83r2, [07/07r1] • Additional suggestion on calibration based on fixed user locations • New contributions expected in January Interim meeting • Channel model mix • Contribution 04/82r1 • Some questioned the need on the use of channel model mix • Need to be consistent with channel models document • More open issues to follow … C802.20-05-04r3

  6. Link Budget Criteria • Link budget • Clarification text required to specify type of data requested, e.g., • Channel environment • Minimum Data Rate at the cell edge • Alternatively, maximum cell size for the required minimum data rate • Technology Selection Process document will specify use of data • Need to provide a linkage between required performance metrics as specified in section 13 and the link budget template C802.20-05-04r3

  7. Fairness Criteria • Fairness criteria for applications other than the best effort traffic need to be specified • Phase approach table listed various applications to be evaluated: • Real-time Interactive traffic (VoIP, gaming) • Streaming traffic (Video streaming) • Non-real-time data traffic (HTTP) • Performance criteria not yet specified • QoS performance – Delay, Error Rate [VoIP: 05/05] • Outage criteria • What would be the performance criteria for each traffic type to ensure that the spectral efficiency is computed based on system resources being shared fairly amongst the simulated users in the same sector? • Contributions are required if additional metrics are to be adopted C802.20-05-04r3

  8. Phase 1 Simulation Methodology • 19-cells, 3 sectors wrap around configuration • Traffic model • Full-buffer (Hungry user) model • Channel model • Suburban Macro • Pedestrian B, 3 km/h • Vehicular B, 120 km/h • Open issues: • System Calibration [04/83r2,05/07r1] • Link Budget • Performance metrics • Consensus required for Section 3.2 [04/88] C802.20-05-04r3

  9. Phase 2 Simulation Methodology • Open issues addressed by Contribution 04/85r1: • Simulation flow • Traffic mix • Reverse link simulation model • Feedback errors • Handoff modeling [05/08, 05/10r1] • Handoff performance metrics [05/10r1] • Control signaling model [05/10r1] • Additional open issues as discussed previously: • Traffic models • VoIP [04/12, 04/37, 05/05] • Internet Gaming [04/86, 05/06] • Video Streaming data rate [04/88, 05/11] • Channel model mix • Link Budget • Fairness/QoS criteria for various applications [VoIP: 05/05] C802.20-05-04r3

  10. Proposed Future Conference Call Schedule • Tuesday, February 8, 2005, 4-6 pm EST • Tuesday, February 22, 2005, 4-6 pm EST • Tuesday, March 8, 2005, 4-6 pm EST C802.20-05-04r3

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