1. doc.: IEEE 11-14/0660r0 Submission May 2014 Minho Cheong, NEWRACOMSlide 1 802.11ax Timeline Date: 2014-05-12 Authors: NameAffiliationsAddressPhoneemail Minho CheongNEWRACOM193 Moonjiro, Yuseong- Gu, Daejeon, Korea +82-70-4888- 2824 minho.cheong@newracom.com

2. doc.: IEEE 11-14/0660r0 Submission Abstract This presentation gives set of issues on when will be an appropriate time for the 802.11ax ad-hoc groups start May 2014 Slide 2Minho Cheong, NEWRACOM

3. doc.: IEEE 11-14/0660r0 Submission 802.11ac Timeline 2008.11: Task Group starts 2008.11~2009.09 (1.0 year): Preparation for ad-hoc groups start –Functional requirements document –Evaluation methodology document (with simulation scenarios) –Channel modeling document –Usage model document –Selection procedure document 2009.11: Ad-hoc Groups start –All the feature items for the spec. is discussed in each ad-hoc –All the jobs are done with the specification framework document May 2014 Slide 3Minho Cheong, NEWRACOM

4. doc.: IEEE 11-14/0660r0 Submission 802.11ac Ad-hoc Group Composition [1] May 2014 Slide 4Minho Cheong, NEWRACOM TGac COEXPHYMACMU-MIMO Pilots Data tones Preamble Enhanced MCS Sounding Higher Bandwidth modulation Parsing and Interleaving Coding, STBC Spatial Mapping & Cyclic Delays OBSS Management Multi-Channel Non-contiguous channelization MC MAC protocol > 80MHz channel Backwards compatibility CCA Channel access Fairness Scanning and channel selection Downlink MU-MIMO Uplink MU-MIMO MU-MIMO parameters (e.g. # of streams, # of clients) Training protocols ACK protocols Reservation/polling protocols Power saving Capability negotiations Frame formats

5. doc.: IEEE 11-14/0660r0 Submission 802.11ax Timeline (Expected) 2014.05: Task Group starts How long for preparation before ad-hoc groups start? –Functional requirements document Remaining issues: absolute numbers for requirements definition may require more time because PAR only has relative numbers in it –Evaluation methodology document (with simulation scenarios) Remaining issues: PHY/MAC/Integrated calibration process may require more time. (More sophisticated traffic models may be needed) –Channel modeling document Almost done in the SG phase (minor modifications to be) –Usage model document Already done in the SG phase –Selection procedure document: maybe no issue May 2014 Slide 5Minho Cheong, NEWRACOM

6. doc.: IEEE 11-14/0660r0 Submission 802.11ax Timeline (Expected) We can speed-up compared to 802.11ac days If reducing (from 1.0 year) to 0.5 year, 2014.11: Ad-hoc Groups start (Expected) –All the feature items for the spec. is discussed in each ad-hoc –All the jobs are done with the specification framework document –How to run ad-hoc groups will be determined by a separate official document (maybe Selection Procedure document) May 2014 Slide 6Minho Cheong, NEWRACOM

7. doc.: IEEE 11-14/0660r0 Submission 802.11ax Ad-hoc Groups Composition (Example) May 2014 Slide 7Minho Cheong, NEWRACOMSlide 7Minho Cheong, NEWRACOM TGax COEXPHYMACMulti-User All the PHY features e.g.) Pilots Data tones Preamble Enhanced MCS Sounding Higher Bandwidth modulation Parsing and Interleaving Coding, STBC Spatial Mapping & Cyclic Delays All the OBSS/dense Wi- Fi/Coexistence related features E. g.,) OBSS Management Backwards compatibility Dynamic CCA Channel access Fairness Scanning and channel selection All the Multi-User related features e.g.,) DL/UL MU-MIMO DL/UL OFDMA MU-MIMO/OFDMA parameters (e.g. # of streams/channels, # of clients) Training/ACK protocol Reservation/polling protocols All the MAC features e.g.,) Power saving Capability negotiations Frame formats

8. doc.: IEEE 11-14/0660r0 Submission References [1] 11-09-1175-01-00ac-ad-hoc-groups-scope May 2014 Slide 8Minho Cheong, NEWRACOM