US 12,089,272 B2
Method and apparatus for a user equipment (UE) 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. 17/325,668.
Claims priority of provisional application 63/040,968, filed on Jun. 18, 2020.
Prior Publication US 2021/0400746 A1, Dec. 23, 2021
Int. Cl. H04W 76/14 (2018.01); H04W 76/11 (2018.01); H04W 80/02 (2009.01); H04W 88/04 (2009.01); H04W 92/18 (2009.01)
CPC H04W 76/14 (2018.02) [H04W 76/11 (2018.02); H04W 80/02 (2013.01); H04W 88/04 (2013.01); H04W 92/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for a first User Equipment (UE) to perform a PC5 unicast link establishment procedure, comprising:
transmitting to a UE-to-UE Relay a first PC5-S message for establishing a PC5 unicast link with the UE-to-UE Relay, wherein the first PC5-S message is addressed to a default Destination Layer-2 Identity (ID) configured by a network and includes a Layer-2 ID of a second UE different than the UE-to-UE Relay, and wherein the Layer-2 ID is self-assigned by the second UE; and
receiving a second PC5-S message from the UE-to-UE Relay, wherein the second PC5-S message is transmitted by the UE-to-UE Relay in response to reception of the first PC5-S message.