US 11,659,468 B2
Method and apparatus for link configuration and routing of relay system
Nam Suk Lee, Daejeon (KR); and Hee Sang Chung, Daejeon (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Aug. 23, 2021, as Appl. No. 17/409,038.
Claims priority of application No. 10-2020-0137886 (KR), filed on Oct. 22, 2020; and application No. 10-2021-0087810 (KR), filed on Jul. 5, 2021.
Prior Publication US 2022/0132392 A1, Apr. 28, 2022
Int. Cl. H04W 12/102 (2021.01); H04W 40/24 (2009.01); H04W 8/28 (2009.01); H04W 88/04 (2009.01); H04W 92/18 (2009.01)
CPC H04W 40/248 (2013.01) [H04W 8/28 (2013.01); H04W 12/102 (2021.01); H04W 88/04 (2013.01); H04W 92/18 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An operation method of a first terminal in a communication system, the operation method comprising:
configuring a Uu access link with a base station, and receiving a first message from the base station, the first message including a relay radio network temporary identifier (RNTI) for identifying the first terminal, a node address of the base station, and a relay adaptation protocol (RAP) entity identifier (ID) for identifying a RAP entity configured for the first terminal;
configuring a relay link with a second terminal when communication with the base station is disconnected;
requesting link switching by transmitting to the base station a second message via the second terminal, the second message including the relay RNTI, the node address, and the RAP entity ID; and
receiving a response to the second message from the base station via the second terminal, and switching a link with the base station from the Uu access link to the relay link.