US 12,342,230 B2
Switching method and communication apparatus
Jia Liu, Shanghai (CN); Chaoyi Yan, Dongguan (CN); and Siduo Shen, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jan. 14, 2022, as Appl. No. 17/576,240.
Application 17/576,240 is a continuation of application No. PCT/CN2020/101649, filed on Jul. 13, 2020.
Claims priority of application No. 201910636713.X (CN), filed on Jul. 15, 2019.
Prior Publication US 2022/0141750 A1, May 5, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 36/30 (2009.01)
CPC H04W 36/00837 (2018.08) [H04W 36/0007 (2018.08); H04W 36/0058 (2018.08); H04W 36/08 (2013.01); H04W 36/304 (2023.05)] 11 Claims
OG exemplary drawing
 
1. A switching method, comprising:
receiving, by a source network device, M pieces of broadcast channel quality information from a terminal device, wherein the M pieces of broadcast channel quality information are in a one-to-one correspondence with M candidate network devices, and each of the M pieces of broadcast channel quality information is used to indicate coverage quality of a broadcast channel between the terminal device and a candidate network device of the M candidate network devices corresponding to the broadcast channel quality information, wherein M is an integer greater than or equal to 2;
determining, by the source network device, N candidate network devices based on broadcast channel quality information comprising the M pieces of broadcast channel quality information corresponding to the M candidate network devices, the N candidate network devices being in the M candidate network devices, wherein N is an integer greater than or equal to 1, and M is greater than or equal to N;
sending, by the source network device, a first measurement parameter to the terminal device, wherein the source network device receives the M pieces of broadcast channel quality information from the terminal device before sending the first measurement parameter to the terminal device, the first measurement parameter is used to indicate the terminal device to measure first reference signals of the candidate network devices, and the first measurement parameter comprises resource position information of the first reference signal of each of the N candidate network devices and a condition for reporting data channel quality information;
receiving, by the source network device, N pieces of data channel quality information from the terminal device, wherein the N pieces of data channel quality information are in a one-to-one correspondence with the N candidate network devices, each of the N pieces of data channel quality information is obtained by the terminal device by measuring a first reference signal of the candidate network device corresponding to the data channel quality information, and each of the N pieces of data channel quality information is used to indicate coverage quality of a data channel between the terminal device and a candidate network device of the N candidate network devices corresponding to the data channel quality information; and
determining, by the source network device, based on the N pieces of data channel quality information, one of the N candidate network devices as a target network device to which the terminal device is to be switched from the source network device.