US 12,177,154 B2
Enhanced sounding packet designs
Sameer Vermani, San Diego, CA (US); Alfred Asterjadhi, San Diego, CA (US); Yanjun Sun, San Diego, CA (US); Bin Tian, San Diego, CA (US); Lin Yang, San Diego, CA (US); Jialing Li Chen, San Diego, CA (US); George Cherian, San Diego, CA (US); and Youhan Kim, Saratoga, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 29, 2021, as Appl. No. 17/388,344.
Claims priority of provisional application 63/059,149, filed on Jul. 30, 2020.
Prior Publication US 2022/0038241 A1, Feb. 3, 2022
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0053 (2013.01) 24 Claims
OG exemplary drawing
 
1. A method for wireless communication by a wireless communication device comprising:
receiving a null data packet announcement (NDPA) frame indicating a request for sounding feedback, the NDPA frame including a medium access control (MAC) header, a sounding dialogue token field that follows the MAC header, and a first wireless station (STA) information field carrying bandwidth information indicating a bandwidth associated with the sounding feedback, a first two bits of the sounding dialogue token field indicating a format of the NDPA frame and remaining bits of the sounding dialogue token field indicating a sounding dialogue token number associated with the NDPA frame, the first STA information field including one or more reserved bits and an association identifier (AID) subfield value having a special AID value that is not assigned to any STAs associated with a same basic service set (BSS) as the wireless communication device, and the bandwidth information being associated with the format of the NDPA frame;
receiving a null data packet (NDP) following the receiving of the NDPA, wherein the NDP is a physical layer convergence protocol (PLCP) protocol data unit (PPDU) having a physical layer preamble that includes a legacy signal field (L-SIG), a repeat of the L-SIG (RL-SIG) that follows the L-SIG, and a universal signal field (U-SIG) that follows the RL-SIG, and wherein the U-SIG carries information indicating that the PPDU is an NDP; and
transmitting the sounding feedback in accordance with the received NDP and the bandwidth information.