HE Beamforming Feedback

Slides:

Advertisements

Similar presentations

Doc.: IEEE /0066r0 Submission Views on UL-MU features Jan, 2016 Date: Authors: NameAffiliationAddressPhone Joonsuk Kim Apple 1.

Advertisements

Doc.: IEEE /0034 Submission Beamforming with HE-LTF Compression Jan, 2016 Slide 1 Date: Authors: Hongyuan Zhang, Marvell, et. al.

Doc.: IEEE /0643r0 Submission UL MU Response Scheduling May 2016 Liwen Chu, Marvell, et. al.Slide 1 Date: Authors: NameAffiliationAddressPhone .

On Amplitude Drift Compensation

A-MPDU Contents Date: Authors: Nov 2016 Liwen Chu Marvell

Random Access with Trigger Frames using OFDMA

SIG-B Encoding Structure

RAW Assignment follow up

1x HE-LTF For UL-MUMIMO Date: Authors: Jan, 2016

MU Minimum MPDU Start Spacing

Usage of Doppler Bit in 11ax

In-device Multi-radio Coexistence and UL MU operation

HE Sounding Segmentation

Trigger Frame Content Date: Simone Merlin Albert Van Zelst

Efficient FDMA MU Transmission Schemes for WUR WLAN

Multiple BSSID and MU Date: Authors: Nov 2016 Liwen Chu

Wakeup Frame Format Date: Authors: Sept 2017 Liwen Chu

Fragmentation with MU Operation

Spatial Configuration And Signaling for MU-MIMO

PHY Padding Remaining Issues

Frame Responding Rules for NDP Ranging

NDP Ranging Error Recovery

Spectral Mask Discussions

MAC Padding in Trigger Frame

Signaling Trigger Information for STAs in ax

Signaling of Multi-TID Aggregation Limit

MCS Rules for Acknowledging UL OFDMA

11az NDP Announcement Date: July 2008

Broadcast and Unicast (Trigger) in DL MU

11az STA Polling for MU NDP Ranging

Acknowledgement to DL MU

Tone Grouping Factors and NDP Format for ax

Cascading Structure Date: David X. Yang Peter Loc Le Liu

Multi-TID A-MPDU in MU Transmission

Views on UL-MU features

Clarifications for OBSS_PD-based SR parameters

WUR MAC and Wakeup Frame

Wakeup Frame Format Date: Authors: Sept 2017 Liwen Chu

Performance evaluation of SU/MU-MIMO in OFDMA

Wakeup Frame Length Date: Authors: Jan 2017 Liwen Chu

11BA Power Save Date: Authors: July 2017 Liwen Chu Marvell

UL MU Carrier Sensing (CS) Rules

11az STA Polling for MU NDP Ranging

11az NDP Announcement Date: July 2008

Consideration of EDCA for WUR Signal

UL MU CCA Response Date: Authors: Hyeyoung Choi

Spatial Configuration And Signaling for MU-MIMO

WUR MAC and Wakeup Frame

Usage of Doppler Bit in 11ax

Pilot Design for Data Section

SS Allocation in Trigger Frame

Spectral Mask Discussions

MAC Padding in Trigger Frame

Multi-AP Transmission Procedure

Mandatory ways to solicit UL MU ACK

Further consideration on Multi-STA Block ACK

MU Synchronization Requirements for SFD

Multi-AP Transmission Procedure

Wakeup Frame Format Date: Authors: Sept 2017 Liwen Chu

11ax Sounding Mode Reductions

WUR MAC and Wakeup Frame

Efficient FDMA MU Transmission Schemes for WUR WLAN

SIG-A Structure in 11ax Preamble

Wakeup Frame Format Date: Authors: Sept 2017 Liwen Chu

Efficient FDMA MU Transmission Schemes for WUR WLAN

Consideration of EDCA for WUR Signal

WUR MAC and Wakeup Frame

11ax Sounding Mode Reductions

Multi-AP Transmission Procedure

BSS Color in NDP Ranging

Presentation transcript:

HE Beamforming Feedback May 2016 HE Beamforming Feedback Date: 2016-05-16 Authors: Name Affiliation Address Phone Email Liwen Chu Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 408-222-2500 liwenchu@marvell.com Lei Wang Leileiw@marvell.com Hongyuan Zhang hongyuan@marvell.com Jinjing Jiang jinjing@marvell.com Yan Zhang yzhang@marvell.com Rui Cao ruicao@marvell.com Sudhir Srinivasa sudhirs@marvell.com Bo Yu boyu@marvell.com Saga Tamhane sagar@marvell.com Mao Yu my@marvel..com Xiayu Zheng xzheng@marvell.com Christian Berger crberger@marvell.com Niranjan Grandhe ngrandhe@marvell.com Hui-Ling Lou hlou@marvell.com Liwen Chu, Marvell, et. al.

2111 NE 25th Ave, Hillsboro OR 97124, USA May 2016 Authors (continued) Name Affiliation Address Phone Email Ron Porat Broadcom rporat@broadcom.com Matthew Fischer mfischer@broadcom.com Sriram Venkateswaran Zhou Lan Leo Montreuil Andrew Blanksby Vinko Erceg Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA +1-503-724-893 robert.stacey@intel.com Eldad Perahia eldad.perahia@intel.com Shahrnaz Azizi shahrnaz.azizi@intel.com Po-Kai Huang po-kai.huang@intel.com Qinghua Li quinghua.li@intel.com Xiaogang Chen xiaogang.c.chen@intel.com Chitto Ghosh chittabrata.ghosh@intel.com Rongzhen Yang rongzhen.yang@intel.com Laurent cariou laurent.cariou@intel.com Liwen Chu, Marvell, et. al.

May 2016 Authors (continued) Liwen Chu, Marvell, et. al.

Authors (continued) May 2016 James Yee Mediatek Name Affiliation Address Phone Email James Yee Mediatek No. 1 Dusing 1st Road, Hsinchu, Taiwan +886-3-567-0766 james.yee@mediatek.com Alan Jauh alan.jauh@mediatek.com Frank Hsu frank.hsu@mediatek.com Thomas Pare USA 2860 Junction Ave, San Jose, CA 95134, USA +1-408-526-1899 thomas.pare@mediatek.com ChaoChun Wang chaochun.wang@mediatek.com James Wang james.wang@mediatek.com Jianhan Liu Jianhan.Liu@mediatek.com Tianyu Wu tianyu.wu@mediatek.com Russell Huang russell.huang@mediatek.com Brian Hart Cisco Systems 170 W Tasman Dr, San Jose, CA 95134 brianh@cisco.com Pooya Monajemi pmonajem@cisco.com Joonsuk Kim Apple joonsuk@apple.com Aon Mujtaba mujtaba@apple.com Guoqing Li guoqing_li@apple.com Eric Wong ericwong@apple.com Chris Hartman chartman@apple.com Liwen Chu, Marvell, et. al.

May 2016 Authors (continued) Liwen Chu, Marvell, et. al.

#9 Wuxing duan, Xifeng Rd, Xi’an, China May 2016 Authors (continued) Bo SunBo Sun ZTE #9 Wuxing duan, Xifeng Rd, Xi’an, China SubSub.bo1@zte.com.cn Kaiying Lv lv.kaiying@zte.com.cn Yonggang Fang yfang@ztetx.com Ke Yao Yao.ke5@zte.com.cn Weimin Xing Xing.weimin@zte.com.cn Liwen Chu, Marvell, et. al.

May 2016 Authors (continued) Liwen Chu, Marvell, et. al.

May 2016 Authors (continued) Liwen Chu, Marvell, et. al.

May 2016 Authors (continued) Liwen Chu, Marvell, et. al.

Recap of Beamforming Feedback In 11ac, a VHT beamformee may not be able to transmit the beamforming feedback in one frame because of the maximal MPDU length restriction of the VHT beamformer. The STA only needs to do fragmentation in this case. In 11ax, UL MU (UL OFDMA, UL MU MIMO) can be used for BF feedback transmission. BFee has the flexibility to select the PPDU length, MCS. VHT NDPA BF Feedback MPDU NDP SIFS SIFS BFee has the flexibility to select the PPDU length, MCS. VHT NDPA NDP BF Feedback A-MPDU SIFS SIFS …... BF Feedback fragment 1 BF Feedback fragment n DL DL DL UL OFDMA DL UL OFDMA HE NDPA BF Feedback BF Feedback Trigger Trigger BF Feedback BF Feedback NDP HE NDPA BF Feedback BF Feedback Trigger Trigger BF Feedback BF Feedback SIFS IFS SIFS Liwen Chu, Marvell, et. al.

HE BF FB Fragmentation Discussion There are two options about BF feedback consideration: Option 1: The HE beamformer shall have the supported MPDU size large enough to avoid fragmentation except when 11,454 is reached. Option 2: the HE beamformer may have supported maximal MPDU size without considering the maximal beamforming(BF) feedback(FB) size. We prefer Option 1. However, the fragmentation is still not avoidable for some HE devices, e.g. red items in the following table even when the resource allocated for BF FD (RU, MCS, and PPDU length ) is enough: The maximal MPDU length of 11ax spec is same as 11ac spec, e.g. 11,454 since 11,454 is restricted by 4-byte FCS capacity. The BF FB may be longer than 11,454. SM Size # of Angles Codebook Size # of SNRs 80 NG =4 160NG =4 4x3 12 10 3 1873.5 3711 4x4 4 1874.5 3712 6x4 28 4319.5 8607 8x3 36 5543.5 11056 8x4 44 6769.5 13507 8X6 54 6 8302.75 16571.5 SM Size # of Angles Codebook Size # of SNRs 80 NG =4 160NG =4 4x3 12 6 3 1138.5 2241 4x4 4 1139.5 2242 6x4 28 2609.5 5182 8x3 36 10 3338.5 6646 8x4 44 4074.5 8117 8X6 54 4995.25 9956.5 SU Codebook (6, 4) SU Codebook (4, 2) SM Size # of Angles Codebook Size # of SNRs 80 NG =4 160NG =4 4x3 12 16 3 3157 6278.5 4x4 4 3220 6402 6x3 24 6097 12158.5 6x4 28 7140 14242 8x2 26 2 6524 13015 8x3 36 9037 18038.5 SM Size # of Angles Codebook Size # of SNRs 80 NG =4 160NG =4 4x3 12 3 2422 4808.5 4x4 4 2485 4932 6x4 28 5425 10812 8X4 44 8365 16692 MU Codebook (7, 5) MU Codebook (9, 7) Liwen Chu, Marvell, et. al.

Trigger for Beamforming Report Poll As in 11ac, a HE STA may not be able to transmit the beamforming feedback in one frame because of the maximal MPDU length restriction of 11454 bytes. The STA needs to do fragmentation in this case 11ac’s fragmentation procedure for beamforming feedback can be used here. Trigger for HE Beamforming Report Poll is the extension basic trigger frame. Trigger Type is Beamforming Report Poll. When the Trigger Type is Beamforming Report Poll, Per User Info field includes 8-bit Feedback Segment Retransmission Bitmap subfield. RA Common Info Per User Info 1 ……….. Per User Info n DL DL DL UL OFDMA DL UL OFDMA HE NDPA BF Feedback BF Feedback Trigger Trigger BF Feedback BF Feedback NDP HE NDPA BF Feedback BF Feedback Trigger Trigger BF Feedback BF Feedback SIFS IFS SIFS Liwen Chu, Marvell, et. al.

Straw Poll 1 Do you support to add the following text in 11ax SFD: The HE beamformer shall have the supported MPDU size large enough to avoid fragmentation except when 11,454 is reached assuming that RU, MCS, and PPDU length for beamforming feedback are large enough? Liwen Chu, Marvell, et. al.

Straw Poll 2 Do you support to add the following text in 11ax SFD: The BRP variant of the Trigger frame includes 8-bit Feedback Segment Retransmission Bitmap in Per STA Info? Liwen Chu, Marvell, et. al.