US 12,219,430 B2
Positioning method, device, system, chip, and storage medium
Shaonan Guo, Chengdu (CN); Jianping Li, Chengdu (CN); Bailu Wang, Shenzhen (CN); and Fangyang Fu, Chengdu (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Mar. 25, 2022, as Appl. No. 17/704,536.
Application 17/704,536 is a continuation of application No. PCT/CN2019/108286, filed on Sep. 26, 2019.
Prior Publication US 2022/0217503 A1, Jul. 7, 2022
Int. Cl. H04W 64/00 (2009.01); G01S 5/02 (2010.01); H04W 4/029 (2018.01)
CPC H04W 4/029 (2018.02) [G01S 5/0268 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A network device, wherein the network device is externally connected to N antennas, the network device has N receive channels, the N antennas are in a one-to-one correspondence with the N receive channels, N is an integer greater than or equal to 3, and the network device comprises a transceiver and a processor;
the transceiver is configured to receive, by using each of the N antennas, a positioning signal sent by a terminal device;
the processor is configured to determine at least one of time of arrival (TOA) information or received signal strength indicator (RSSI) information of the positioning signal on each of the N receive channels; and
the transceiver is configured to send the at least one of the TOA information or the RSSI information of the positioning signal on each of the N receive channels to a service anchor, to enable the service anchor to position the terminal device based on the at least one of the TOA information or the RSSI information of the positioning signal on each of the N receive channels, wherein
the network device further comprises N transmit channels, the N transmit channels are in a one-to-one correspondence with the N receive channels;
the transceiver is configured to transmit a first synchronization signal through a first transmit channel, wherein the first transmit channel is any one of the N transmit channels;
the transceiver is configured to receive the first synchronization signal through a first receive channel group, wherein the first receive channel group comprises N−1 receive channels in the N receive channels other than a first receive channel corresponding to the first transmit channel;
the processor is configured to determine first TOA information of the first synchronization signal on the first receive channel group; and
the transceiver is configured to send the first TOA information of the first synchronization signal on the first receive channel group to the service anchor, to enable the service anchor to implement time synchronization in the first receive channel group based on the first TOA information of the first synchronization signal on the first receive channel group.