US 11,758,596 B2
Method and apparatus for a relay to transmit a direct communication request message 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 20, 2021, as Appl. No. 17/325,711.
Claims priority of provisional application 63/040,976, filed on Jun. 18, 2020.
Prior Publication US 2021/0400747 A1, Dec. 23, 2021
Int. Cl. H04W 76/14 (2018.01); H04B 7/155 (2006.01)
CPC H04W 76/14 (2018.02) [H04B 7/155 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for a User Equipment-to-User Equipment (UE-to-UE) Relay to perform a PC5 unicast link establishment procedure, comprising:
the UE-to-UE Relay receives a first PC5-S message from a first User Equipment (UE), wherein the first PC5-S message includes a unicast Layer-2 Identity (ID) of a second UE, an Application Layer ID of the first UE, and an Application Layer ID of the second UE;
the UE-to-UE Relay transmits a second PC5-S message addressed to the unicast Layer-2 ID of the second UE for establishing a PC5 unicast link with the second UE, wherein the second PC5-S message includes the Application Layer ID of the first UE and the Application Layer ID of the second UE; and
the UE-to-UE Relay receives a third PC5-S message from the second UE, wherein the third PC5-S message is transmitted by the second UE in response to reception of the second PC5-S message.