US 11,812,481 B2
Layer 2 relay unicast link setup
Karthika Paladugu, San Diego, CA (US); Hong Cheng, Basking Ridge, NJ (US); Gavin Bernard Horn, La Jolla, CA (US); and Dan Vassilovski, Del Mar, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Feb. 16, 2021, as Appl. No. 17/176,785.
Claims priority of provisional application 62/986,329, filed on Mar. 6, 2020.
Prior Publication US 2021/0282195 A1, Sep. 9, 2021
Int. Cl. H04W 88/04 (2009.01); H04W 76/10 (2018.01); H04W 4/90 (2018.01); H04W 40/22 (2009.01); H04W 72/20 (2023.01)
CPC H04W 76/10 (2018.02) [H04W 4/90 (2018.02); H04W 40/22 (2013.01); H04W 72/20 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a remote user equipment (UE), comprising:
transmitting, to a relay UE, a request for a Layer 2 relay service and a relay service code associated with the Layer 2 relay service, the relay service code identifying a relay type of the Layer 2 relay service;
receiving, from the relay UE, a message indicating whether the relay UE accepts the Layer 2 relay service associated with the relay service code,
wherein the message indicates that the relay UE accepts the Layer 2 relay service when the relay service code indicates that the Layer 2 relay service is associated with an emergency service, and
wherein the message indicates that the relay UE rejects the Layer 2 relay service when the relay service code indicates that the Layer 2 relay service comprises a type of Layer 2 relay service that is not associated with the emergency service;
establishing, based at least in part on the message indicating that the relay UE accepts the Layer 2 relay service associated with the relay service code, a radio access signaling radio bearer (SRB) for the Layer 2 relay service using a remote UE radio access SRB configuration,
wherein the radio access SRB for the Layer 2 relay service is established based at least in part on the relay UE providing, to a base station, an indication that the relay UE supports the Layer 2 relay service and receiving a relaying configuration from the base station based at least in part on the indication; and
communicating via the radio access SRB.