US 12,192,839 B2
Handover control method, relay apparatus, and donor apparatus
Masato Fujishiro, Yokohama (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Filed by KYOCERA Corporation, Kyoto (JP)
Filed on Feb. 18, 2022, as Appl. No. 17/675,703.
Application 17/675,703 is a continuation of application No. PCT/JP2020/030008, filed on Aug. 5, 2020.
Claims priority of application No. JP2019-151550 (JP), filed on Aug. 21, 2019.
Prior Publication US 2022/0174564 A1, Jun. 2, 2022
Int. Cl. H04W 36/02 (2009.01); H04W 16/26 (2009.01); H04W 88/04 (2009.01); H04W 84/04 (2009.01)
CPC H04W 36/02 (2013.01) [H04W 16/26 (2013.01); H04W 88/04 (2013.01); H04W 84/047 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A handover control method for performing a handover of a relay apparatus from a first donor apparatus or an apparatus lower than the first donor apparatus to a second donor apparatus or an apparatus lower than the second donor apparatus, the handover control method comprising:
transmitting, by the first donor apparatus, a first RRC message indicating a handover of a lower apparatus lower than the relay apparatus to the lower apparatus;
receiving, by the relay apparatus, the first RRC message, and then suspending transfer of the first RRC message to the lower apparatus until the handover of the relay apparatus is performed; and
by the relay apparatus, in response to performance of the handover of the relay apparatus, transferring to the lower apparatus the first RRC message of which the transfer is suspended.