Systems and methods for user equipment cooperation with sidelink HARQ feedback
AssigneeHuawei Technologies Co., Ltd.
InventorsYu Cao, Amine Maaref, Jianglei Ma
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Abstract
Methods and devices utilizing sidelink transmission between user equipment (UEs) for HARQ retransmission are provided. The sidelink HARQ retransmissions include data from the initial transmission or an outer coded version thereof. HARQ feedback from the targeted receiver of the initial transmission may identify code block groups and/or individual code blocks the target receiver did not successfully decode. A UE that has not successfully decoded an entire transport block, may still cooperate in HARQ retransmission for the targeted receiver of the transport block by retransmitting at least a subset of the code block groups that it was able to successfully decode for the transport block.
Claims21
A method for user equipment (UE) cooperation, the method comprising:
- receiving, at a first UE, a transport block intended for a second UE, the transport block comprising a plurality of code block groups, each code block group comprising a plurality of code blocks;
- and
- transmitting, from the first UE to the second UE, at least one code block based on at least one code block group of the received transport block intended for the second UE, the at least one code block group of the received transport block including less than all code block groups of the received transport block.
A user equipment (UE) comprising:
- one or more processors;
- and
- a non-transitory computer readable storage medium storing programming for execution by the one or more processors, the programming including instructions to:
- receive a transport block intended for a second UE, the transport block comprising a plurality of code block groups, each code block group comprising a plurality of code blocks;
- and
- transmit, to the second UE, at least one code block based on at least one code block group of the received transport block intended for the second UE, the at least one code block group of the received transport block including less than all code block groups of the received transport block.
Dependencies are inferred from the claim text.