Multi-Beamforming in Polarized Channels for 11ay
"Explore the benefits of multi-beamforming in polarized channels for 11ay technology to enhance MIMO system performance. The proposed technique supports simultaneous steering of multiple sectors using dual-polarization, reducing operation time and accommodating various antenna characteristics."
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January 2016 doc.: IEEE 802.11-16/0092r1 Multi-Beamforming in Polarized Channels for 11ay Date: 2016-01-21 Authors: Name Company Address Phone Email Kyungtae Jo kyungtae.jo@lge.com SungJin Park allean.park@lge.com HanGyu Cho hg.cho@lge.com LG Electronics JinMin Kim jinmin1230.kim@lge.com Saehee Bang saehee.bang@lge.com Sang G. Kim sanggook.kim@lge.com Submission Slide 1 Kyungtae Jo (LG Electronics)
January 2016 doc.: IEEE 802.11-16/0092r1 Introduction This contribution intends to investigate how the beamforming (BF) training procedures in 11ad is modified to support the simultaneous steering of the multiple sectors using dual-polarization. Submission Slide 2 Kyungtae Jo (LG Electronics)
January 2016 doc.: IEEE 802.11-16/0092r1 Motivation In 60GHz, MIMO system exhibits a reduced performance since the LOS channel has high spatial correlation. In order to improve the performance of MIMO systems in LOS scenario, techniques such as antenna polarization have been employed to obtain higher rank. Moreover, multi-beamforming (multi-BF) which is simultaneously multi-sector steering in the polarized directions could be used to reduce the time for BF operation Submission Slide 3 Kyungtae Jo (LG Electronics)
January 2016 doc.: IEEE 802.11-16/0092r1 Scenario 1: Multi-beamforming for STA with dual-polarized antenna Simultaneous beam-steering for STA with dual polarization Initiator/responder transmits/receives the BF frames (e.g. SSW frame) with horizontal and vertical polarization domain, simultaneously. Polarization diversity can be achieved when the BF frames are transmitted through both polarization domains. On the other hand, it can enable to reduce the time for BF operation when half of the total BF frames are sent by H-pole and the remaining frames are sent by V- pole, dividedly. H Pol. H Pol. I-TXSS FBCK H Pol . R-TXSS ACK Initiator Responder V Pol . I-TXSS V Pol. FBCK V Pol . R-TXSS ACK Submission 4 Kyungtae Jo (LG Electronics)
January 2016 doc.: IEEE 802.11-16/0092r1 Scenario 2: Multi-beamforming for STAs with single-polarized antenna Simultaneous beam-steering for STAs with single polarization A initiator transmits the BF frames with horizontal and vertical polarization domain, simultaneously. Each STA receives the signal with only one of horizontal and polarization domain depending on own antenna characteristics. So, it can simply enable BF operation for multiple STAs regardless of antenna characteristics of responder. Submission 5 Kyungtae Jo (LG Electronics)
January 2016 doc.: IEEE 802.11-16/0092r1 Summary In this contribution, multi-BF with dual polarization is proposed for 11ay. Multi-BF can be considered to reduce the time for BF operation. Also, it can support BF operation for multiple STAs regardless of antenna characteristics. The detailed protocol and field design are going to be implemented afterward (TBD). Submission Slide 6 Kyungtae Jo (LG Electronics)
January 2016 doc.: IEEE 802.11-16/0092r1 Straw poll/motion Insert the following in the SFD: The 11ay beamforming protocol supports multi- beamforming for multiple array antennas. Multi- beamforming means that a transmitter simultaneously sends SSW frames in multiple polarized directions. Submission Slide 7 Kyungtae Jo (LG Electronics)
