CPC H04W 76/14 (2018.02) [H04B 7/155 (2013.01)] | 10 Claims |
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.
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