US 11,870,623 B2
Wireless local area network data transmission method and apparatus
Jiayin Zhang, Shanghai (CN); Jun Luo, Kista (SE); and Phillip Barber, McKinney, TX (US)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Dec. 13, 2021, as Appl. No. 17/549,447.
Application 17/549,447 is a continuation of application No. 17/002,495, filed on Aug. 25, 2020, granted, now 11,223,973.
Application 17/002,495 is a continuation of application No. 15/463,796, filed on Mar. 20, 2017, granted, now 10,893,438.
Application 15/463,796 is a continuation of application No. PCT/CN2015/070288, filed on Jan. 7, 2015.
Claims priority of application No. PCT/CN2014/086944 (WO), filed on Sep. 19, 2014; and application No. PCT/CN2015/070233 (WO), filed on Jan. 6, 2015.
Prior Publication US 2022/0210694 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04B 7/26 (2006.01); H04L 69/22 (2022.01); H04W 28/06 (2009.01); H04W 52/02 (2009.01); H04W 84/12 (2009.01)
CPC H04L 27/2602 (2013.01) [H04B 7/26 (2013.01); H04L 69/22 (2013.01); H04W 28/06 (2013.01); H04W 52/02 (2013.01); H04L 27/2603 (2021.01); H04W 84/12 (2013.01); Y02D 30/70 (2020.08)] 15 Claims
OG exemplary drawing
 
1. A wireless local area network data transmission method, comprising:
generating, by an access point, a physical layer protocol data unit (PPDU) of a wireless local area network, wherein the generated PPDU comprises a Physical Layer Convergence Protocol (PLCP) header domain and a data domain, wherein the PLCP header domain comprises a preamble and a control domain, wherein the control domain carries identifier information of the access point, an identifier of at least one station, and duration information, wherein the duration information in the PLCP header domain is for network allocation vector (NAV) setting, wherein the NAV is for protecting transmission of one or more PPDUs subsequent to the generated PPDU in an orthogonal frequency division multiple access (OFDMA) transmission opportunity (TXOP), and wherein a duration indicated by the duration information in the PLCP header domain includes a transmission duration of the one or more PPDUs subsequent to the generated PPDU in the TXOP; and
sending, by the access point, the generated PPDU;
wherein the data domain of the generated PPDU is transmitted via OFDMA technology, and wherein the data domain of the generated PPDU carries a downlink medium access control protocol data unit (MPDU), and the MPDU comprises a medium access control (MAC) header domain, wherein the MAC header domain of the downlink MPDU carried in the data domain further comprises an OFDMA control field and a frame control field.