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802.11 TGn Gen Ad Hoc Overview

802.11 TGn Gen Ad Hoc Overview. Authors:. Date: 2009-01-28. Abstract. An overview of the TGn Gen Ad Hoc CIDs from the 1 st sponsor ballot. Sorted Comments:. Major revision: Single MAC (CID: 146, 145) Feature Reducion: (CID: 21) Remove TX beamforming (CID: 52) Remove LDPC (CID: 53)

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802.11 TGn Gen Ad Hoc Overview

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  1. 802.11 TGn Gen Ad Hoc Overview Authors: Date: 2009-01-28 Joseph Levy, InterDigital

  2. Abstract An overview of the TGn Gen Ad Hoc CIDs from the 1st sponsor ballot. Joseph Levy, InterDigital

  3. Sorted Comments: • Major revision: • Single MAC (CID: 146, 145) • Feature Reducion: (CID: 21) • Remove TX beamforming (CID: 52) • Remove LDPC (CID: 53) • Remove STBC (CID: 54) • STBC – Mandatory (CID: 148) • Corrections: • General Description (CID: 48, 49, 64, 162) • Capabilities elements (CID: 163,147, 82) • PICS (CID: 63, 233) • Patent issues (CID: 57, 144) Joseph Levy, InterDigital

  4. Major revision: Single MAC Joseph Levy, InterDigital

  5. Resolution for CIDs 146/145 • Disagree - 802.11 has from the onset created a PHY aware MAC that supports multiple PHYs.  Having a MAC be PHY aware has provided a means to enhance the features that 802.11 has included in its current standard. Being able to advertise which MAC specific features are being supported enhances the feature sets that can be supported. • Add comment on why restricted at this time and how it can be extended. • Add PAR comment. • Being able to advertise what MAC specific features are being supported enhances the feature sets that can be supported. • Features that have been developed for specific PHYs have been indicated in variable and elements that are specific to the PHY being created.  If a legacy PHY could make use of a new MAC feature, that would needs be verified, and a means to indicate when it would be viable or not in a generic means for compatibility with the legacy PHYs that do not make use of the new feature.  No change to the HT-extended Capability field is warranted at this time. Joseph Levy, InterDigital

  6. Major revision: Feature Reduction Joseph Levy, InterDigital

  7. Resolution for CID 21 • Disagree -- While the features cited may not be of value to the commenter, the consensus of the Task Group N and Working Group 802.11 is that they have technical merit. The Comment Resolution Committee also sees merit in the features referred to in the comment, and therefore disagrees with the proposed change. Joseph Levy, InterDigital

  8. Major revision: Feature Reduction (cont.) Joseph Levy, InterDigital

  9. Resolution for CIDs 52, 53, 54 • Disagree • Evaluation metrics – which benefit from these features • Complexity reduction is not a goal of the PAR • These features do increase datarate at range. Joseph Levy, InterDigital

  10. STBC - Mandatory Joseph Levy, InterDigital

  11. Resolution for CID 148 • Use resolution to CID 2976: • Disagree - while the STBC modes can provide PER improvements, this benefit is not significant for all implementations (eg. devices with more antennas than spatial streams, MCS with BPSK, etc.) and therefore, the choice of accepting the complexity associated with this option should not be required of all implementations. Joseph Levy, InterDigital

  12. Corrections: General Description Joseph Levy, InterDigital

  13. Resolution for CIDs 48, 164 (49 transferred) • CID 48: Disagree.   The description of these elements is unambiguous.In reply to the commenter: the HT Capabilities element contains static information exchanged during association.  The HT Operation contains information that represents the dynamic state of the BSS.   • CID 49: Transfer to coex. • CID 164: Out of Scope (if not possible disagree):The cited MIB variable is part of the baseline .11 specification, this comment is not in scope of .11n. This comment will be referred to TGmb for consideration. Joseph Levy, InterDigital

  14. Corrections: General Description (cont.) Joseph Levy, InterDigital

  15. Resolution for CID 64 • 64 – The definition of HT-STA is unambiguous, i.e. a STA that transmits an HT capabilities element. This is independent of its support of PSMP. A STA that supports PSMP, but does not transmit an HT capabilities element is not an HT-STA. There is no need to invent a specific name for a STA that supports PSMP. Joseph Levy, InterDigital

  16. Corrections: Capabilities Elements Joseph Levy, InterDigital

  17. Resolution for CID 82 • Adrian and Brian to provide submission Joseph Levy, InterDigital

  18. Corrections: Capabilities Elements (cont.) Joseph Levy, InterDigital

  19. Resolution for CIDs 147, 163 • Transferred to MAC Joseph Levy, InterDigital

  20. Corrections: PICS Joseph Levy, InterDigital

  21. Resolution for CID 63 • Agree in Principle: • Move PSMP (HTM 12.x) from table A.4.20.1 to table A.4.4.1 and label as PC 35.x • Detailed review necessary Joseph Levy, InterDigital

  22. Corrections: PICS (cont.) Joseph Levy, InterDigital

  23. Corrections: PICS (cont.) Joseph Levy, InterDigital

  24. Resolution for CID 232/233 • Propose to Agree 233 • Propose to Agree in Principle 232: • Current text D7.0: RCPI shall equal the received RF power within an accuracy of +/- 0. 5 dB (95% confidence interval) within the specified dynamic range of the receiver. • Proposed additional/replacement text: Improved RCPI accuracy is optional, the RCPI accuracy shall equal the receiver RF power within the accuracy indicated in table A.4.20.2 HT PHY features (95% confidence interval) within the specified dynamic range of the receiver. Joseph Levy, InterDigital

  25. Patent Issues Joseph Levy, InterDigital

  26. Resolution for CID 57/144 • Propose to Reject • 802.11 WG, TGn and the TGn CRC believe they have faithfully followed the procedures provided by PatCom concerning the soliciting of potentially essential patents and associated LOAs as specified in: http://standards.ieee.org/board/pat/pat-slideset.ppt TGn CRC is restricted from any additional action beyond these procedures. TGn CRC has asked the WG11 chair to pass this comment on to PatCom for further review and advice. While awaiting further advice, TGn CRC and WG11 will continue to follow IEEE IP procedures and the TGn CRC and WG11 continue working to deliver the best solution it can during sponsor ballot.   Joseph Levy, InterDigital

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