US 11,838,977 B2
Method and apparatus for performing link identifier update procedure in a wireless communication system
Richard Lee-Chee Kuo, Taipei (TW)
Assigned to ASUSTek Computer Inc., Taipei (TW)
Filed by ASUSTek Computer Inc., Taipei (TW)
Filed on May 26, 2021, as Appl. No. 17/331,035.
Claims priority of provisional application 63/041,518, filed on Jun. 19, 2020.
Prior Publication US 2021/0400759 A1, Dec. 23, 2021
Int. Cl. H04W 76/25 (2018.01); H04B 7/155 (2006.01)
CPC H04W 76/25 (2018.02) [H04B 7/155 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for a User Equipment-to-User Equipment (UE-to-UE) Relay to perform a link identifier update procedure, comprising:
the UE-to-UE Relay establishes a first unicast link with a first UE and establishes a second unicast link with a second UE, wherein an old Layer-2 Identity (ID) of the first UE and an old Layer-2 ID of the UE-to-UE Relay are used for the first unicast link;
the UE-to-UE Relay receives a first Link Identifier Update Request message from the first UE to modify at least one first link identifier of the first UE, wherein the first Link Identifier Update Request message includes a new Layer-2 ID of the first UE and a new Application Layer ID of the first UE; and
the UE-to-UE Relay transmits a second Link Identifier Update Request message to the second UE, in response to reception of the first Link Identifier Update Request message, to modify the at least one first link identifier of the first UE, wherein the second Link Identifier Update Request message includes the new Application Layer ID of the first UE and does not include the new Layer-2 ID of the first UE.