US 12,244,370 B2
Transmit method based on satellite massive MIMO integrated sensing and communication
Li You, Jiangsu (CN); Xiaoyu Qiang, Jiangsu (CN); Yuqi Ye, Jiangsu (CN); Yan Huang, Jiangsu (CN); Wenjin Wang, Jiangsu (CN); and Xiqi Gao, Jiangsu (CN)
Assigned to SOUTHEAST UNIVERSITY, Jiangsu (CN)
Appl. No. 17/786,380
Filed by Southeast University, Jiangsu (CN)
PCT Filed Oct. 12, 2021, PCT No. PCT/CN2021/123282
§ 371(c)(1), (2) Date Jun. 16, 2022,
PCT Pub. No. WO2023/044982, PCT Pub. Date Mar. 30, 2023.
Claims priority of application No. 202111106179.5 (CN), filed on Sep. 22, 2021.
Prior Publication US 2024/0195462 A1, Jun. 13, 2024
Int. Cl. H04B 7/0456 (2017.01); H04B 7/185 (2006.01)
CPC H04B 7/0456 (2013.01) [H04B 7/18513 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A transmit method based on satellite massive Multiple-Input Multiple-Output (MIMO) integrated sensing and communication, comprising:
providing a satellite end with a massive MIMO antenna array which simultaneously serves multiple users and detects multiple targets, wherein communication and sensing use the same spectrum resources and the same hardware platform, and integrated sensing and communication is implemented by transmitting a signal to focus on communication or sensing;
estimating, by the satellite end, statistical status information of electromagnetic wave propagation according to received uplink and downlink pilot signals, wherein for a communication process, the statistical status information of electromagnetic wave propagation is a channel gain and a channel direction vector between the satellite end and user terminals;
for a sensing process, configuring the statistical status information of electromagnetic wave propagation with angles of departure of the targets;
according to the statistical status information of electromagnetic wave propagation, transmitting, by the satellite end, a directional beam to a detection target and a downlink signal to each user terminal by means of integrated sensing and communication precoding; and
during dynamic movement of the satellite and the user terminals as well as the targets, updating the integrated sensing and communication precoding with a change in the statistical status information of electromagnetic wave propagation between the satellite and the user terminals as well as the targets.