Date 20181115 Slide 1 Authors Name Company Address Phone Email Yusuke Tanaka Sony Corporation YusukeYTTanakasonycom Kosuke Aio KosukeAiosonycom Sho Furuichi ShoFuruichisonycom ID: 730138
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Slide1
Discussion on EHT PAR Construction
Date: 2018-11-15
Slide 1
Authors:
NameCompanyAddressPhoneEmailYusuke TanakaSony CorporationYusuke.YT.Tanaka@sony.comKosuke AioKosuke.Aio@sony.comSho FuruichiSho.Furuichi@sony.comNaotaka Satonaotaka.sato@ieee.orgWilliam CarneySony Electronics William.Carney@sony.com
November 2018
Yusuke Tanaka(Sony Corporation), et al.Slide2
Several candidate technologies had been proposed in the past EHT TIG and SG sessions.
The proposed technologies are 6GHz support, 320MHz, 16SS, Multi-AP Coordination, HARQ, etc.The group achieved general consensus during the session on Nov. 12
th that single-PAR process will be adopted.To construct an initial PAR draft for EHT, this contribution discusses what type of features should be considered for the PAR construction.
Slide 2IntroductionNovember 2018Yusuke Tanaka(Sony Corporation), et al.Slide3
A new 802.11 amendment to be developed in the EHT should evolve from the existing 11ax spec with some mandatory features.
This direction could make a new 802.11 amendment more attractive and valuable for wireless LAN users.As discussed in the contribution [2], some novel features jump straight to mandatory, and some evolve from optional to mandatory.
We discussed some features proposed in the past EHT sessions from the aspect of PAR constructionsThe point of discussion is especially whether those could evolve a new 802.11 amendment from the 11ax.
Some early PAR texts are proposed as baseline.Views on PAR ConstructionNovember 2018Yusuke Tanaka(Sony Corporation), et al.Slide 3Slide4
6GHz support enables more channels that could realize wider channel bonding and congestion reduction.
These advantages contribute to achieve the primary objectives; to increase peak throughput and improve efficiency.6GHz support should be considered in the PAR construction.
11ax has already supported 6GHz. Matured efficient operation in 6GHz band (includes 320MHz) evolves a new 802.11 amendment from the 11ax.
6GHz Support for PAR construction (1/2)November 2018Yusuke Tanaka(Sony Corporation), et al.Slide 4Slide5
To start constructing an initial PAR draft, contribution [3, 9] can be a basis for discussion.
The contribution [3] proposed guidelines on Section 5.2b (Scope of the project) and Section 8.1 (Explanatory notes) in a new PAR.The contribution [9] shows early proposal texts as follows.
“Section 5.2b Scope of the project:… with carrier frequency operation between 1 and 7.125 GHz while ensuring backward compatibility and coexistence with legacy IEEE802.11 devices in the 2.4 and 5 GHz unlicensed bands, and with IEEE802.11ax devices in the 6GHz band.”
These texts cover frequency, backward compatibility and coexistence, so can be in an initial PAR draft.6GHz Support for PAR construction (2/2)November 2018Yusuke Tanaka(Sony Corporation), et al.Slide 5Slide6
Multi-AP Coordination is a completely new feature in 802.11.
There are some types of this feature such as time/frequency/power coordination, coordinated beamforming, joint transmissions. [3-5] This feature has potential to mitigate mutual interference among multiple APs.
This feature has potential to avoid low spectrum utilization efficiency due to autonomous behavior of conventional WLANs.Potential to improve performance has been reported. [6-8] Multi-AP Coordination should be considered in the PAR construction.
This new feature enables efficient resource use and multi-user access, that evolves a new 802.11 amendment from the 11ax. Multi-AP Coordination for PAR construction (1/2)November 2018Yusuke Tanaka(Sony Corporation), et al.Slide 6Slide7
Multi-AP Coordination is one of well accepted features in EHT, but there are no early proposal texts now.
In addition, there are some types of this feature so early proposal texts should be written in neutral expression.Proposal texts as baseline are as follows.
Section 8.1 Explanatory notes…These scenarios highlight [TBD number] categories of objectives to increase peak throughput and improve efficiency
:Make more efficient use of spectrum resources in scenarios with multiple APs which can communicate each other.…Multi-AP Coordination for PAR construction (2/2)November 2018Yusuke Tanaka(Sony Corporation), et al.Slide 7Slide8
This contribution discussed what type of features should be considered in a PAR construction for EHT.
Features which could evolve a new 802.11 amendment from 11ax should be considered. We discussed 6GHz support and Multi-AP coordination from that aspect.This contribution proposed some early PAR texts are proposed as baseline.
Summary
November 2018Yusuke Tanaka(Sony Corporation), et al.Slide 8Slide9
[1] 11-18-1059-06-0000-july-2018-wg-motions
[2] 11-18-1549-00-0eht-candidate-technology-review
[3] 11-18-1215-01-0eht-discussion-on-par[4] 11-18-1533-00-0eht-view-on-eht-candidate-features[5] 11-18-1509-00-0eht-features-for-multi-ap-coordination
[6] 11-18-1161-00-0eht-eht-technology-candidate-discussions[7] 11-18-1510-01-0eht-ap-coordinated-beamforming-for-eht[8] 11-18-1576-00-0eht-considerations-on-ap-coordination[9] 11-18-1231-00-0eht-eht-draft-proposed-parNovember 2018Slide 9ReferenceYusuke Tanaka(Sony Corporation), et al.