US 11,997,672 B2
Communication control method
Masato Fujishiro, Yokohama (JP); and Henry Chang, San Diego, CA (US)
Assigned to KYOCERA Corporation, Kyoto (JP)
Filed by KYOCERA Corporation, Kyoto (JP)
Filed on Aug. 12, 2021, as Appl. No. 17/401,267.
Application 17/401,267 is a continuation of application No. PCT/JP2020/005395, filed on Feb. 12, 2020.
Claims priority of provisional application 62/805,435, filed on Feb. 14, 2019.
Prior Publication US 2021/0377980 A1, Dec. 2, 2021
Int. Cl. H04W 72/1268 (2023.01); H04W 36/08 (2009.01); H04W 72/21 (2023.01); H04W 88/14 (2009.01)
CPC H04W 72/1268 (2013.01) [H04W 36/08 (2013.01); H04W 72/21 (2023.01); H04W 88/14 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A communication control method using a relay apparatus configured to relay uplink data transmitted from user equipment to a donor base station in a mobile communication system, the communication control method comprising:
receiving, by the relay apparatus, a first scheduling request of requesting allocation of an uplink radio resource to a lower apparatus from the lower apparatus;
after the relay apparatus receiving the first scheduling request from the lower apparatus, allocating, by the relay apparatus, the uplink radio resource to the lower apparatus, and
after the relay apparatus allocating the uplink radio resource to the lower apparatus, transmitting, by the relay apparatus, a second scheduling request of requesting allocation of uplink radio resource to the relay apparatus to an upper apparatus before receiving the uplink data from the lower apparatus, wherein
the lower apparatus is the user equipment, or a lower relay apparatus being interposed between the user equipment and the relay apparatus, and
the upper apparatus is the donor base station, or an upper relay apparatus being interposed between the donor base station and the relay apparatus.