US 12,425,146 B2
UL MU OFDMA trigger based peer-to-peer operation with UL MU MIMO
Yonathan Segev, Sunnyvale, CA (US); Qinghua Li, San Ramon, CA (US); Xiaogang Chen, Portland, OR (US); Ofer Hareuveni, Haifa (IL); and David Birnbaum, Modiin (IL)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Dec. 21, 2021, as Appl. No. 17/557,257.
Prior Publication US 2022/0116165 A1, Apr. 14, 2022
Int. Cl. H04L 5/00 (2006.01); H04B 7/06 (2006.01); H04W 72/12 (2023.01); H04W 72/1263 (2023.01); H04B 7/0452 (2017.01); H04W 84/12 (2009.01); H04W 92/20 (2009.01)
CPC H04L 5/0035 (2013.01) [H04B 7/0626 (2013.01); H04W 72/1263 (2013.01); H04B 7/0452 (2013.01); H04L 5/0007 (2013.01); H04W 84/12 (2013.01); H04W 92/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus of an Extremely High Throughput (EHT) station (EHT STA), the apparatus comprising: processing circuitry; and memory,
wherein, when the EHT STA is operating as a first peer station for trigger-based peer-to-peer (P2P) operations with an EHT Access Point (EHT AP) and a second peer station, the processing circuitry is configured to:
decode a trigger frame received from the EHT AP, the trigger frame reserving channel resources for two or more P2P transfers,
the trigger frame indicating a time allocated to the first peer station for a first of the P2P transfers and a time allocated to the second peer station for a second of the P2P transfers, wherein the time allocated to the first peer station and the time allocated to the second peer station comprise time on a same channel;
wherein during the time allocated for the first of the P2P transfers, the processing circuitry is configured to:
encode a null data packet (NDP) frame for channel sounding for transmission;
encode a first trigger-based (TB) physical layer protocol data unit (PPDU) for transmission to the AP in accordance with a EHT multi-user (MU) PPDU format; and
encode a second TB PPDU for transmission to the second peer station in accordance with the EHT MU PPDU format,
wherein the first and second TB PPDUs comprise concurrent OFDMA-based transmissions in accordance with an uplink (UL) MU multiple-input multiple output (MIMO) technique,
wherein first channel state information reported by the EHT AP determined from the NDP frame is applied by the first peer station for transmission of the first TB PPDU to the EHT AP, and
wherein second channel state information reported by the second peer station determined from the NDP frame is applied by the first peer station for transmission of the second TB PPDU to the second peer station.