US 12,149,390 B2
Data sending and receiving method and apparatus utilizing signatures symbol to identify PPDU
Jian Yu, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 12, 2022, as Appl. No. 17/574,455.
Application 17/574,455 is a continuation of application No. PCT/CN2020/097818, filed on Jun. 23, 2020.
Claims priority of application No. 201910631626.5 (CN), filed on Jul. 12, 2019.
Prior Publication US 2022/0141062 A1, May 5, 2022
Int. Cl. H04L 27/26 (2006.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04W 80/02 (2009.01)
CPC H04L 27/2602 (2013.01) [H04L 1/0061 (2013.01); H04L 5/0044 (2013.01); H04W 80/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A data sending method, comprising:
generating, by a transmitter, a physical layer protocol data unit (PPDU), wherein the PPDU comprises a signature field, and the signature field comprises one or more of: (1) a first preset bit that indicates a standard version corresponding to the PPDU; (2) a cyclic redundancy code (CRC) in a third preset bit that is used to check a part of or all bits in the signature field; or (3) a tail bit that is used to end binary convolutional code (BCC) encoding; and
sending, by the transmitter, the PPDU to a receiver,
wherein at least one of a quantity of bits and locations of the bits occupied by the CRC in the signature field are different from at least one of a quantity of bits and locations of the bits occupied by a parity bit in a repeated legacy signaling field (RL-SIG) in a high efficiency physical layer protocol data unit (HE PPDU).