Hybrid automatic repeat request feedback method and apparatus
AssigneesBeijing Xiaomi Mobile Software Co., Ltd., Beijing University of Posts and Telecommunications
InventorsYajun ZHU, Wei HONG, Xinyu MA, Yong LI
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Abstract
A method for feeding back a hybrid automatic repeat request (HARQ), includes: when a first HARQ feedback bit for first DCI and a second HARQ feedback bit for second DCI issued by a network device need to be carried on a same PUCCH format 0 sequence, user equipment processes the PUCCH format 0 sequence based on a pre-configured mode, and transmits a processed PUCCH format 0 sequence to the network device.
Claims22
A method for feeding back a hybrid automatic repeat request (HARQ), the method performed by user equipment (UE) and comprising:
- processing, on a condition that it is determined that a same physical uplink control channel (PUCCH) sequence has to carry an HARQ feedback codebook based on first downlink control information (DCI) and second DCI received from a network device, the PUCCH sequence carrying the HARQ feedback codebook based on a preconfigured mode, wherein the PUCCH sequence is a PUCCH format 0 sequence, and the HARQ feedback codebook comprises a first HARQ feedback bit for the first DCI and a second HARQ feedback bit for the second DCI;
- and
- transmitting a processed PUCCH sequence to the network device.
A method for feeding back a hybrid automatic repeat request (HARQ), the method performed by a network device and comprising:
- transmitting first downlink control information (DCI) and second DCI, and receiving a physical uplink control channel (PUCCH) sequence fed back by user equipment (UE), wherein the first DCI and the second DCI indicate that a same PUCCH sequence carries an HARQ feedback codebook comprising a first HARQ feedback bit for the first DCI and a second HARQ feedback bit for the second DCI, and the PUCCH sequence fed back is a PUCCH format 0 sequence;
- determining a number of HARQ feedback bits comprised in the HARQ feedback codebook based on a preconfigured mode;
- and
- determining values of the HARQ feedback bits comprised in the HARQ feedback codebook and DCI corresponding to the HARQ feedback bits comprised in the HARQ feedback codebook based on the number of the HARQ feedback bits and the preconfigured mode.
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A communication device, comprising:
- a transceiver;
- a memory;
- and a processor connected to the transceiver and the memory separately, configured to control the transceiver to transceive radio signals by executing a computer-executable instruction on the memory, and to:
- process, on a condition that it is determined that a same physical uplink control channel (PUCCH) sequence has to carry an HARQ feedback codebook based on first downlink control information (DCI) and second DCI received from a network device, the PUCCH sequence carrying the HARQ feedback codebook based on a preconfigured mode, wherein the PUCCH sequence is a PUCCH format 0 sequence, and the HARQ feedback codebook comprises a first HARQ feedback bit for the first DCI and a second HARQ feedback bit for the second DCI;
- and
- transmit a processed PUCCH sequence to the network device.
Dependencies are inferred from the claim text.