WLAN Radar Date: 2018-December-5 Authors: December 2018 Name Company

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WLAN Radar Date: 2018-December-5 Authors: December 2018 Name Company May 2015 doc.: IEEE 802.11-15/0496r1 December 2018 WLAN Radar Date: 2018-December-5 Authors: Name Company Email Alecsander Eitan Qualcomm eitana@qti.qualcomm.com Assaf Kasher akasher@qti.qualcomm.com Solomon Trainin strainin@qti.qualcomm.com Alecsander Eitan (Qualcomm) Edward Au (Marvell Semiconductor)

December 2018 Introduction Lately Radar use-case in unlicensed mmWave start to gain interest in the industry (vendors and OEMs) for a variety of applications, such as: gesture, proximity, room sensing, image depth,… Radars in mmWave are based on FMCW or random sequences such as Golay. Supporting Radar as part of the WLAN framework can be very beneficial for both. Coexistence and sharing can be achieved by WLAN CCA and NAV mechanisms. Alecsander Eitan (Qualcomm)

December 2018 What is suggested? Add Radar functionality to 11ay based on existing frames and rules Add text as an Annex (in 11ay) WLAN STA will follow all the Channel Access Rules of 802.11 when performing Radar actions Radar will use CTS2SELF, SSW and Short-SSW Frame formats (in these messages Destination Address to be set to be same as Source Address) Alecsander Eitan (Qualcomm)

Radar Technologies Two main technologies are used for Radar in mmWave: December 2018 Radar Technologies Two main technologies are used for Radar in mmWave: FMCW signal Sweeping CW signal covering large spectrum. Simple HW implementation Golay sequences Type of full-duplex Radar where a wide-band waveform with very good autocorrelation is used (e.g. Golay sequences same/similar to those used in DMG) Alecsander Eitan (Qualcomm)

Benefits for having Radar as part of 802.11 December 2018 Benefits for having Radar as part of 802.11 Coexistence – better for the Radar and other WLAN links (facilitates protection to WLAN link from any WLAN Radar, protection to WLAN Radar from any WLAN link and protection to WLAN Radar from any other WLAN Radar) WLAN Radar can be tested for compliance via WFA Higher EIRP for the Radar (-> higher range) HW for 11ay frames transmission and reception is already available (adding the RADAR functionality to WiFi devices has no additional hw cost) Alecsander Eitan (Qualcomm)

December 2018 Straw Poll Do you support adding Radar functionality to 11ay spec based on existing 11ay frames (e.g. CTS2SELF, SSW and Short-SSW) by adding an Annex to the spec? (suggested Annex text in DCN 11-18-2095-00-00ay) Y / N / A Alecsander Eitan (Qualcomm)