US 11,888,608 B2
Data transmission method and apparatus in backscatter communication
Tao Wu, Shenzhen (CN); and Teyan Chen, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Mar. 16, 2022, as Appl. No. 17/696,420.
Application 17/696,420 is a continuation of application No. PCT/CN2020/108596, filed on Aug. 12, 2020.
Claims priority of application No. 201910877846.6 (CN), filed on Sep. 17, 2019.
Prior Publication US 2022/0209886 A1, Jun. 30, 2022
Int. Cl. H04L 1/00 (2006.01); H04L 27/04 (2006.01); H04L 27/20 (2006.01)
CPC H04L 1/0003 (2013.01) [H04L 27/04 (2013.01); H04L 27/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A data transmission method in backscatter communication, the method comprising:
generating a first frame, wherein the first frame carries first data and second data, the first data and the second data in the first frame use different modulation schemes; and
sending the first frame to a first tag and a second tag, wherein the first data is obtained by the first tag and the second data is obtained by the second tag,
wherein:
the first data uses amplitude modulation, and the second data uses phase modulation; or
the first data uses phase modulation, and the second data uses amplitude modulation; or
both the first data and the second data use amplitude modulation, and the first data and the second data have different amplitude values.