	US 12,407,383 B2
	Antenna switching method and apparatus
Jinning Huang, Dongguan (CN); Yanliang Sun, Dongguan (CN); Ningning Xie, Dongguan (CN); and Yi He, Dongguan (CN)
Assigned to VIVO MOBILE COMMUNICATION CO., LTD., Dongguan (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Dongguan (CN)
Filed on Jun. 14, 2023, as Appl. No. 18/210,062.
Application 18/210,062 is a continuation of application No. PCT/CN2021/136730, filed on Dec. 9, 2021.
Claims priority of application No. 202011485235.6 (CN), filed on Dec. 16, 2020.
Prior Publication US 2023/0327721 A1, Oct. 12, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 7/0404 (2017.01)

CPC H04B 7/0608 (2013.01) [H04B 7/0404 (2013.01)]

18 Claims

1. An antenna switching method, performed by a terminal, comprising:

when a network environment of the terminal or a state of the terminal satisfies a first condition, performing an antenna switching state dominated by an uplink, performing uplink transmission sequentially on at least two antennas in the antenna switching state dominated by the uplink, obtaining an uplink transmission parameter of each of the antennas within a first preset time length, and determining a to-be-used uplink antenna according to the uplink transmission parameter,

wherein the uplink transmission parameter comprises: at least one of a network resource allocation amount, a network speed, a packet data convergence protocol (PDCP) layer rate, a radio link control (RLC) layer rate, a physical layer rate, a closed-loop power control variation of physical uplink shared channel, or a closed-loop power control variation of physical uplink control channel; and

when the network environment of the terminal or the state of the terminal satisfies a second condition, switching from the antenna switching state dominated by the uplink to an antenna switching state dominated by a downlink, and in the antenna switching state dominated by the downlink, determining the to-be-used uplink antenna according to quality or strength of a signal received by a downlink antenna.