CPC H04L 5/0094 (2013.01) [H04L 1/0026 (2013.01); H04L 1/0068 (2013.01); H04L 1/1896 (2013.01); H04L 25/0226 (2013.01); H04L 5/0053 (2013.01); H04W 72/046 (2013.01); H04W 72/0453 (2013.01); H04W 74/0816 (2013.01)] | 23 Claims |
1. A method for wireless communications, the method comprising:
operating an Access Point (AP) to receive a sounding feedback report from a client for a sounding bandwidth up to 320 MHz;
signaling, by the AP, to flail the client, in a Null Data Packet Announcement (NDPA) frame a feedback subcarrier location set on which flail the feedback report is solicited;
and
indicating, by the client, feedback subcarrier indices for the subcarrier location set via the feedback report solicited by the AP;
wherein for the sounding bandwidth of at most 160 MHz, the feedback subcarrier location set is indicated by 9-bits which indicate each of the possible combinations for an aggregation of 242-sized Resource Units (RUs) for the sounding bandwidth, wherein for the sounding bandwidth greater than 160 MHz, the feedback subcarrier location set is indicated by 9-bits which indicate each of the possible combinations for an aggregation of 484-sized RUs for the sounding bandwidth, and wherein an aggregation of more than two RUs is considered.
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