US 12,267,878 B2
Orthogonal frequency division multiple access (OFDMA) hybrid transmission method and apparatus
Yunbo Li, Shenzhen (CN); Jian Yu, Shenzhen (CN); Ming Gan, Shenzhen (CN); Mao Yang, Xi'an (CN); and Bo Li, Xi'an (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 8, 2022, as Appl. No. 17/689,677.
Application 17/689,677 is a continuation of application No. PCT/CN2020/114093, filed on Sep. 8, 2020.
Claims priority of application No. 201910848781.2 (CN), filed on Sep. 9, 2019.
Prior Publication US 2022/0201769 A1, Jun. 23, 2022
Int. Cl. H04W 74/0833 (2024.01); H04W 28/26 (2009.01); H04W 72/0453 (2023.01); H04W 74/08 (2009.01)
CPC H04W 74/0841 (2013.01) [H04W 28/26 (2013.01); H04W 72/0453 (2013.01); H04W 74/0866 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An orthogonal frequency division multiple access (OFDMA) uplink hybrid transmission method, comprising:
sending, by an access point (AP), a trigger frame, wherein the trigger frame is used to trigger a first station (STA) supporting a first standard and a second STA supporting a second standard to perform OFDMA uplink transmission; and
receiving, by the AP, a trigger-based physical layer protocol data unit (TB PPDU), wherein a bandwidth of the TB PPDU is a second bandwidth, and the TB PPDU comprises first uplink data sent by the first STA in response to the trigger frame and second uplink data sent by the second STA in response to the trigger frame, wherein
the first STA supports a first bandwidth, the second STA supports the second bandwidth, and the second bandwidth is greater than the first bandwidth, and
the trigger frame comprises a common information field, the common information field comprises an uplink bandwidth field and a first reserved bit, and the uplink bandwidth field and the first reserved bit are jointly used for determining, by the second STA, the second bandwidth, and the first bandwidth is determined, by the first STA based on the uplink bandwidth field.