US 12,302,178 B2
Terminal apparatus, base station apparatus, control method, and computer-readable storage medium for executing conditional handover
Hiroki Takeda, Tokyo (JP)
Assigned to KDDI CORPORATION, Tokyo (JP)
Filed by KDDI CORPORATION, Tokyo (JP)
Filed on Mar. 2, 2022, as Appl. No. 17/685,049.
Application 17/685,049 is a continuation of application No. PCT/JP2020/034028, filed on Sep. 9, 2020.
Claims priority of application No. 2019-183267 (JP), filed on Oct. 3, 2019.
Prior Publication US 2022/0191750 A1, Jun. 16, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/36 (2009.01)
CPC H04W 36/0061 (2013.01) [H04W 36/362 (2023.05)] 19 Claims
OG exemplary drawing
 
1. A terminal apparatus comprising:
one or more processors; and
one or more memories that store a computer-readable instruction for causing, when executed by the one or more processors, the one or more processors to:
obtain, from a base station apparatus that is currently connected to the terminal apparatus, (i) a communication parameter for Radio Resource Control (RRC) that is to be used when the terminal apparatus is connected to a candidate base station apparatus that is a candidate for handover destination, (ii) identification information identifying the communication parameter for the RRC, and (iii) a condition for executing handover to the candidate base station apparatus; and
based on obtaining the communication parameter and the identification information from the base station apparatus that is currently connected to the terminal apparatus, transmit, to the candidate base station apparatus, a message that includes the identification information identifying the communication parameter for the RRC for use by the candidate base station to determine the communication parameter to communicate with the terminal apparatus, when handover to the candidate base station apparatus is performed based on the condition.