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https://mentor.ieee.org/802.11/dcn/17/11-17-0340-00-00ax-cr-for-11-1-3-10.docx - Yonggang Fang I will not be able to attend this, so here are some brief comments on 17/0340r0: ` - "Rejected – See discussion below" (and similar) is not an acceptable comment resolution. The resolution needs to stand alone - Re CIDs 5165, 6556, 9334, 9696, I don't buy the claim that "The UL transmission could gain about up to 10dB". HE ER PPDUs can only be sent with 10 MHz or 20 MHz bandwidth. So the only gain a non-AP STA can get from transmitting an HE ER PPDU in response to a Beacon frame sent in an HE ER PPDU too is the gain from concentrating the energy into 10 MHz rather than 20 MHz. This is not 10 dB - CID 9696 asked for simulation evidence for the benefits of HE ER beacons. This has not been addressed - Re CIDs 7977, 7978, 9561, I don't think it's necessary to "add the restriction of not sending HE Beacon and legacy Beacon at same time" since the laws of physics already ensure this. However, it is necessary to ensure the T HE Beacon TT is well-defined to minimise power consumption at STAs that are receiving the HE Beacons - The resolution to CID 7961 needs to address the point that the AP needs to send a given broadcast BU twice: once after the HE beacon (for STAs that are tracking these only) and once after the legacy beacon (for STAs that are tracking these only) - Or are you suggesting (as the new 10.7.5.x implies) that if an AP sends HE beacons it doesn't send legacy beacons? Then "not schedule transmissions of HE Beacon at the time of legacy Beacon transmission" makes even less sense - "The HE AP shall transmit buffered non-GCR-SP group addressed BUs, immediately after HE Beacon frames, when they are DTIM Beacons frames (see 11.2.3.4) " is grammatically broken (spurious first comma) and duplicates the statement in 11.2.3.4, which is already clear ("After a DTIM, the AP shall transmit buffered non-GCR-SP group addressed BUs, before transmitting any individually addressed frames.") - "An HE Beacon frame may not include fields/IEs that apply only to legacy STAs" is ambiguous. Change to "shall not" or "may exclude" depending on what you mean - "An HE AP may transmit HE
Beacon frames and group addressed traffic in HE_EXT_SU PHY formats
" is only true if there are no non-HE basic rates/MCSes, per 10.7.5.x. This needs to be made clear - "An HE Beacon" should be "An HE Beacon frame" - "in HE_EXT_SU PHY formats
" should be "in HE_EXT_SU PHY format
" - "of HE Beacon" should be "of HE Beacon frames" - What does "to indicate availability of HE Beacon" mean? And "frames" is missing - What does "The additional rate selection restriction for HE PPDU is defined in the clause 27.15.4.3" mean? The grammar is poor too - "high efficient (HE) beacon:
A BSS transmits beacons in HE_EXT_SU PHY format to enable BSS discoverability and BSS operating parameters distribution in the whole BSS coverage." is not a definition of a beacon, it's a definition of behaviour. Furthermore, it's broken: a BSS doesn't transmit anything, an AP does Thanks, Mark -- Mark RISON, Standards Architect, WLAN English/Esperanto/Français Samsung Cambridge Solution Centre Tel: +44 1223 434600 Innovation Park, Cambridge CB4 0DS Fax: +44 1223 434601 ROYAUME UNI WWW:
http://www.samsung.com/uk From: *** 802.11 TGax - HEW - High Efficiency WLAN *** [mailto:STDS-802-11-TGAX@xxxxxxxx]
On Behalf Of Osama AboulMagd Hello All, There is a TGax telecon scheduled for Thursday April 06
at 20:00 ET. Please let me know if you plan a submission. A tentative agenda is: ·
Call the meeting to order ·
IEEE 802 and 802.11 IPR policy and procedure ·
Attendance reminder. Please send an e.mail to Yasuhiko Inoue (Inoue.yasuhiko@xxxxxxxxxxxxx) and/or Osama
Aboul-Magd (Osama.aboulmagd@xxxxxxxxxx) ·
Announcements ·
Reminder of the May TGax ad hoc meeting in Seoul. Korea ·
https://mentor.ieee.org/802.11/dcn/17/11-17-0340-00-00ax-cr-for-11-1-3-10.docx - Yonggang Fang ·
AoB ·
Adjourn. Teleconferences are bound by the conditions stipulated by the documentation below. Please review them and bring up any questions/concerns you may have before proceeding with the teleconference IEEE Patent Policy - http://standards.ieee.org/board/pat/pat-slideset.ppt To join the meeting: Conference ID: 808-571-868 Regards; Osama. _______________________________________________________________________________
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