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US 2024/0405928 A1Published application
Method and apparatus for harq-ack feedback generation per downlink control information
AssigneeLenovo (Beijing) Limited
InventorsHaipeng Lei, Yu Zhang
Life of this patent
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Abstract
Embodiments of the present disclosure relate to HARQ-ACK codebook determination. According to some embodiments of the disclosure, a UE may receive a plurality of DCI formats. Each of the DCI formats may schedule at least one PDSCH transmission on at least one serving cell of the UE. The plurality of DCI formats may indicate the same slot for transmitting a HARQ-ACK codebook. The UE may generate the HARQ-ACK codebook according to various methods as disclosed in the present disclosure.
Claims20
A user equipment (UE), comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the UE to:
- receive a plurality of downlink control information (DCI) formats, wherein each of the DCI formats schedules at least one physical downlink shared channel (PDSCH) transmission on at least one serving cell of the UE, and the plurality of DCI formats indicates a same slot for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook;
- divide the plurality of DCI formats into a first set and a second set, wherein the first set includes all first type DCI formats of the plurality of DCI formats and the second set includes all second type DCI formats of the plurality of DCI formats, wherein each first type DCI format requires a single HARQ-ACK information bit and each second type DCI format requires more than one HARQ-ACK information bit, and wherein downlink assignment indicators (DAIs) are counted independently for the first type DCI format and the second type DCI format;
- generate a first HARQ-ACK sub-codebook comprising HARQ-ACK information bits for DCI formats in the first set arranged according to DAIs of the DCI formats in the first set;
- generate a second HARQ-ACK sub-codebook comprising HARQ-ACK information bits for DCI formats in the second set arranged according to DAIs of the DCI formats in the second set;
- and
- transmit the HARQ-ACK codebook comprising the first HARQ-ACK sub-codebook and the second HARQ-ACK sub-codebook.
6 more elements
A base station (BS), comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the base station to:
- transmit, to a user equipment (UE), a plurality of downlink control information (DCI) formats, wherein each of the DCI formats schedules at least one physical downlink shared channel (PDSCH) transmission on at least one serving cell of the UE, and the plurality of DCI formats indicates a same slot for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook;
- and
- receive, from the UE, the HARQ-ACK codebook comprising a first HARQ-ACK sub-codebook and a second HARQ-ACK sub-codebook,
- wherein the plurality of DCI formats is divided into a first set and a second set, the first set includes all first type DCI formats of the plurality of DCI formats and the second set includes all second type DCI formats of the plurality of DCI formats, wherein each first type DCI format requires a single HARQ-ACK information bit and each second type DCI format requires more than one HARQ-ACK information bit, wherein downlink assignment indicators (DAIs) are counted independently for the first type DCI format and the second type DCI format, and
- wherein the first HARQ-ACK sub-codebook comprises HARQ-ACK information bits for DCI formats in the first set arranged according to DAIs of the DCI formats in the first set, and the second HARQ-ACK sub-codebook comprises HARQ-ACK information bits for DCI formats in the second set arranged according to DAIs of the DCI formats in the second set.
5 more elements
A processor for wireless communication, comprising:
- at least one controller coupled with at least one memory and configured to cause the processor to:
- receive a plurality of downlink control information (DCI) formats, wherein each of the DCI formats schedules at least one physical downlink shared channel (PDSCH) transmission on at least one serving cell of the processor, and the plurality of DCI formats indicates a same slot for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook;
- divide the plurality of DCI formats into a first set and a second set, wherein the first set includes all first type DCI formats of the plurality of DCI formats and the second set includes all second type DCI formats of the plurality of DCI formats, wherein each first type DCI format requires a single HARQ-ACK information bit and each second type DCI format requires more than one HARQ-ACK information bit, and wherein downlink assignment indicators (DAIs) are counted independently for the first type DCI format and the second type DCI format;
- generate a first HARQ-ACK sub-codebook comprising HARQ-ACK information bits for DCI formats in the first set arranged according to DAIs of the DCI formats in the first set;
- generate a second HARQ-ACK sub-codebook comprising HARQ-ACK information bits for DCI formats in the second set arranged according to DAIs of the DCI formats in the second set;
- and
- transmit the HARQ-ACK codebook comprising the first HARQ-ACK sub-codebook and the second HARQ-ACK sub-codebook.
4 more elements
A method performed by a user equipment (UE), the method comprising:
- receiving a plurality of downlink control information (DCI) formats, wherein each of the DCI formats schedules at least one physical downlink shared channel (PDSCH) transmission on at least one serving cell of the UE, and the plurality of DCI formats indicates a same slot for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook;
- dividing the plurality of DCI formats into a first set and a second set, wherein the first set includes all first type DCI formats of the plurality of DCI formats and the second set includes all second type DCI formats of the plurality of DCI formats, wherein each first type DCI format requires a single HARQ-ACK information bit and each second type DCI format requires more than one HARQ-ACK information bit, and wherein downlink assignment indicators (DAIs) are counted independently for the first type DCI format and the second type DCI format;
- generating a first HARQ-ACK sub-codebook comprising HARQ-ACK information bits for DCI formats in the first set arranged according to DAIs of the DCI formats in the first set;
- generating a second HARQ-ACK sub-codebook comprising HARQ-ACK information bits for DCI formats in the second set arranged according to DAIs of the DCI formats in the second set;
- and
- transmitting the HARQ-ACK codebook comprising the first HARQ-ACK sub-codebook and the second HARQ-ACK sub-codebook.
3 more elements
Dependencies are inferred from the claim text.