Dynamic hybrid automatic repeat request acknowledgement (harq-ack) codebook determination
AssigneeIntel Corporation
InventorsYi Wang, Yingyang Li, Gang Xiong
Life of this patent
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Abstract
Systems, apparatuses, methods, and computer-readable media are provided for dynamic hybrid automatic repeat request (HARQ)-acknowledgement (ACK) feedback for multi-cell scheduling (e.g., a downlink control information (DCI) that schedules physical downlink shared channels (PDSCHs) and/or physical uplink shared channels (PUSCHs) on multiple cells). Embodiments may include techniques to determine a downlink assignment index (DAI) and/or a HARQ-ACK codebook, e.g., a Type-1. Type-2, and/or Type-3 codebook, for multi-cell scheduling. Other embodiments may be described and claimed.
Claims21
-40. (canceled)
An apparatus for use in a user equipment (UE), wherein the apparatus comprises:
- memory to store a received downlink control information (DCI) that schedules a plurality of physical downlink shared channels (PDSCHs) in a plurality of serving cells;
- and
- one or more processors configured to:
- identify a reference serving cell of the plurality of serving cells;
- identify, based on the DCI, a counter downlink assignment index (DAI);
- and
- encode, based on the counter DAI and the reference serving cell, hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback for the plurality of PDSCHs.
One or more non-transitory computer-readable media (NTCRM) comprising instructions that, upon execution of the instructions by one or more processors, are to cause a user equipment (UE) to:
- identify a received downlink control information (DCI) that schedules a plurality of physical downlink shared channels (PDSCHs) in a plurality of serving cells;
- identify a reference serving cell of the plurality of serving cells;
- identify, based on the DCI, a counter downlink assignment index (DAI);
- and
- encode, based on the counter DAI and the reference serving cell, hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback for the plurality of PDSCHs.
One or more non-transitory computer-readable media (NTCRM) comprising instructions that, upon execution of the instructions by one or more processors, are to cause a base station to:
- identify a reference serving cell of a plurality of serving cells;
- identify, based on the reference serving cell, a counter downlink assignment index (DAI);
- encode, for transmission to a user equipment (UE), a downlink control information (DCI) that schedules a plurality of physical downlink shared channels (PDSCHs) in a plurality of serving cells, wherein the DCI includes an indication of the counter DAI;
- and
- identify, from the UE based on the counter DAI, hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback for the plurality of PDSCHs.
Dependencies are inferred from the claim text.