US 12,273,871 B2
Sidelink relay communication method and apparatus, device and medium
Mengzhen Wang, Shenzhen (CN); Lin Chen, Shenzhen (CN); and Weiqiang Du, Shenzhen (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Appl. No. 17/799,626
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed Jan. 13, 2021, PCT No. PCT/CN2021/071419
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2021/159906, PCT Pub. Date Aug. 19, 2021.
Claims priority of application No. 202010091525.6 (CN), filed on Feb. 13, 2020.
Prior Publication US 2023/0073469 A1, Mar. 9, 2023
Int. Cl. H04W 72/1263 (2023.01); H04W 88/04 (2009.01); H04W 92/18 (2009.01)
CPC H04W 72/1263 (2013.01) [H04W 88/04 (2013.01); H04W 92/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sidelink relay communication method, applied to a relay user equipment (UE), for UE-to-Network relay communication, comprising:
receiving, by the relay UE, a data packet from a remote UE through a PC5 radio link control (RLC) bearer between the remote UE and the relay UE;
identifying, by the relay UE, a Uu bearer of the remote UE associated with the data packet, according to a defined one-to-one mapping relationship between Uu bearers of the remote UE and PC5 RLC bearers;
mapping, by the relay UE, the data packet to a relay Uu backhaul bearer, which is dedicated for relay forwarding, between the relay UE and a base station by adding a packet header to the data packet, wherein the packet header comprises a Uu bearer identifier of the remote UE; and
transmitting, by the relay UE, the data packet to the base station.