US 11,943,170 B2
Null data packet announcement frame transmission method and related apparatus
Jian Yu, Shenzhen (CN); Yuchen Guo, Shenzhen (CN); Chenchen Liu, Shenzhen (CN); Yunbo Li, Shenzhen (CN); Ming Gan, Shenzhen (CN); and Dandan Liang, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Aug. 4, 2023, as Appl. No. 18/365,841.
Application 18/365,841 is a continuation of application No. 17/992,705, filed on Nov. 22, 2022.
Application 17/992,705 is a continuation of application No. PCT/CN2021/093950, filed on May 14, 2021.
Claims priority of application No. 202010443487.6 (CN), filed on May 22, 2020; and application No. 202010963022.3 (CN), filed on Sep. 14, 2020.
Prior Publication US 2023/0421333 A1, Dec. 28, 2023
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0057 (2013.01) 20 Claims
OG exemplary drawing
 
1. A null data packet announcement (NDPA) frame transmission method, comprising:
generating an NDPA frame, wherein the NDPA frame comprises a station information field, wherein the station information field comprises an association identifier (AID) subfield and a partial bandwidth information subfield, wherein the AID subfield indicates an AID of a station and the partial bandwidth information subfield comprises a resource unit (RU) indication index, wherein the RU indication index indicates: (1) an RU for which the station needs to feed back channel state information and (2) a frequency position of the RU in a complete bandwidth corresponds to the NDPA frame, wherein the complete bandwidth is 320 MHz; and
transmitting the NDPA frame.