US 12,438,641 B2
End-to-end hybrid automatic repeat request (HARQ) for relay communications with user equipment (UE) cooperation
Hua Xu, Ottawa (CA); and Jianglei Ma, Ottawa (CA)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Hua Xu, Ottawa (CA); and Jianglei Ma, Ottawa (CA)
Filed on Dec. 30, 2021, as Appl. No. 17/565,549.
Claims priority of provisional application 63/135,138, filed on Jan. 8, 2021.
Prior Publication US 2022/0224445 A1, Jul. 14, 2022
Int. Cl. H04L 1/1812 (2023.01); H04B 7/155 (2006.01); H04L 1/1607 (2023.01); H04L 1/1867 (2023.01)
CPC H04L 1/1812 (2013.01) [H04B 7/155 (2013.01); H04L 1/1671 (2013.01); H04L 1/1874 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method comprising:
communicating, in a wireless communication network, signaling for configuring an end-to-end hybrid automatic repeat request (HARQ) process associated with a first data transmission from a first end node to a second end node along a user equipment (UE) relay path that comprises a plurality of links between a plurality of nodes along the UE relay path between the first end node and the second end node,
the end-to-end HARQ process comprising a single HARQ process that is denoted by a single HARQ process identifier,
wherein the configuring comprises allocating a first buffer for the end-to-end HARQ process,
wherein the allocating comprises allocating the first buffer in a shared HARQ buffer, the method further comprising:
communicating further signaling for allocating, in the shared HARQ buffer, a second buffer for a link HARQ process associated with a second data transmission between two nodes of the plurality of nodes over a link of the plurality of links.