US 12,262,337 B2
Communication apparatus, control method, and non-transitory computer-readable storage medium
Tetsuya Yamamoto, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 11, 2022, as Appl. No. 17/861,531.
Claims priority of application No. 2021-119870 (JP), filed on Jul. 20, 2021.
Prior Publication US 2023/0028156 A1, Jan. 26, 2023
Int. Cl. H04W 56/00 (2009.01); H04W 76/10 (2018.01); H04W 76/27 (2018.01)
CPC H04W 56/001 (2013.01) [H04W 76/10 (2018.02); H04W 76/27 (2018.02)] 14 Claims
OG exemplary drawing
 
1. A communication apparatus for performing wireless communication by switching between a connected state in which connection is established and a non-connected state in which connection is not established based on control of a base station, comprising:
one or more processors; and
one or more memories that store a program for causing, when executed by the one or more processors, the communication apparatus to:
perform, during establishment of connection with the base station, synchronization processing for obtaining reference time information of a time synchronization system and establishing time synchronization;
set a time interval for performing the synchronization processing based on an error of an intra-apparatus time held in the communication apparatus with respect to time information represented by the reference time information; and
in a case where the communication apparatus is operating in the non-connected state, based on the time interval, request the base station to cause the communication apparatus to stay in the connected state at a timing when the synchronization processing is to be performed,
wherein the synchronization processing is performed at a timing based on the time interval, at which the communication apparatus is operating in the connected state.