EDMG capabilities for Open Loop Spatial Multiplexing in SU-MIMO January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 EDMG capabilities for Open Loop Spatial Multiplexing in SU-MIMO Date: 2017-01-17 Authors: Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic

January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 Introduction Several MIMO scenarios for 11ay have been proposed [1], and the contributions of [2]-[4] focus on MIMO scenario for open loop spatial multiplexing (OLSM). The contribution [3] proposed PH (Phase Hopping) as OLSM, and the contribution [4] proposed PH with precoding. The contribution [5] proposed additional EDMG-Header-A fields for PH and precoding. This contribution proposes EDMG capabilities fields related to OLSM. Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic

Necessity of EDMG capabilities related to OLSM January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 Necessity of EDMG capabilities related to OLSM The current SFD [6] defines PH and open loop precoding as follows. “When using the EDMG OFDM mode, the 11ay specification shall define SU EDMG PPDU transmission with and without phase hopping. An EDMG STA may support transmission and reception of SU EDMG PPDU with phase hopping. In this mechanism, the following apply: 　　- Precoding may be used and - The period of phase hopping is TBD.” It is necessary for receivers to transmit EDMG capabilities related to OLSM, because a transmitter needs to know whether receivers have a capability of demodulation of PH and precoding. Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic

Definition of EDMG capabilities related to OLSM January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 Definition of EDMG capabilities related to OLSM The EDMG capabilities element is defined in Draft IEEE802.11ay D0.1 [7]. To indicate whether receivers have a capability of demodulation of PH and precoding, phase hopping capability information (1bit)/Open loop precoding capability information (1bit) are needed in the core capabilities field of the EDMG capabilities element. Name Number of bits Description PH Supported 1 Set to 1 if the STA supports phase hopping as specified in 29.6.7.25. Set to 0 otherwise. Open Loop Precoding Supported Set to 1 if the STA supports open loop precoding as specified in 29.6.7.25. Set to 0 otherwise. Proposed Core Capabilities Field Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic

January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 Conclusions It is necessary for receivers to transmit EDMG capabilities related to OLSM in the 11ay capability exchange. It is proposed to include two bits related to OLSM in the core capabilities field of the EDMG capabilities element. - Phase hopping capability information (1bit) - Open loop precoding capability information (1bit) Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic

References [1] 11-15-0334-01-ng60-mimo-framework January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 References [1] 11-15-0334-01-ng60-mimo-framework [2] 11-16-0388-00-00ay-performance-analysis-of-open-loop-su-mimo- receivers-for-ieee-802-11ay [3] 11-16-0669-01-00ay-open-loop-spatial-multiplexing-with-phase- hopping-for-11ay [4] 11-16-0959-00-00ay-open-loop-spatial-multiplexing-with-phase- hopping-for-11ay [5] 11-16-1444-00-00ay-edmg-phy-headers-for-open-loop-spatial- multiplexing-in-su-mimo [6] 11-15-1358-09-00ay-11ay Spec Framework [7] Draft IEEE802.11ay D0.1 Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic

January 2017 doc.: IEEE 802.11-17/0059r0 January 2017 Straw Poll Do you agree to add the following capability information in the core capabilities field of the EDMG capabilities element regarding open loop precoding into the 11ay SFD? 　　- Open Loop Precoding Supported field (1bit) Yutaka Murakami, Panasonic Yutaka Murakami, Panasonic