US 12,328,779 B2
Methods and apparatus for sidelink relay channel establishment
Xuelong Wang, Beijing (CN)
Assigned to MEDIATEK Singapore Pte. Ltd, Singapore (SG)
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed on Jul. 21, 2022, as Appl. No. 17/814,174.
Application 17/814,174 is a continuation of application No. PCT/CN2021/073230, filed on Jan. 22, 2021.
Application PCT/CN2021/073230 is a continuation of application No. PCT/CN2020/073807, filed on Jan. 22, 2020.
Prior Publication US 2022/0361267 A1, Nov. 10, 2022
Int. Cl. H04W 88/04 (2009.01); H04W 76/14 (2018.01)
CPC H04W 76/14 (2018.02) [H04W 88/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for a relay user equipment (UE) comprising:
receiving, by the relay UE, a request from a base station to establish a sidelink (SL) relay path in a new radio (NR) network, wherein the sidelink relay path includes the relay UE as a relay node for two end nodes;
sending, by the relay UE, one or more sidelink relay channel establishment commands to one or more UEs to establish one or more corresponding sidelink relay channels for the sidelink relay path, wherein each sidelink relay channel establishment command is carried by a PC5 RRC message including one or more relay channel configurations for a PC5 link between an end node remote UE and the relay UE;
activating an end-to-end sidelink relay channel for the sidelink relay path upon completion of one or more sidelink relay channel establishments; and
routing sidelink relay data packets between the two end nodes through the end-to-end relay channel.