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Harq-ack codebook generating method, information sending method and device
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A codebook and channel technology, applied in the field of terminals and network side equipment, to reduce impact and ensure reliability
Active Publication Date: 2022-01-28
VIVO MOBILE COMM CO LTD
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[0005] The embodiment of the present invention provides a HARQ-ACK codebook generation method, information transmission method, terminal and network side equipment to solve the problem of how to generate a dynamic codebook for HARQ-ACK feedback of up to two PDSCH groups based on UL DAI question
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Embodiment approach 1
[0094] Embodiment 1. The first relationship satisfies that: the first DAI corresponds to at least one PDSCH group in the N PDSCH groups.
[0095] That is to say, in Embodiment 1, the first DAI must have a corresponding relationship with at least one PDSCH group in the N PDSCH groups.
[0096] When N is equal to 1, that is, the N PDSCH groups only include one PDSCH group, the first DAI corresponds to the PDSCH group.
[0097] When N is greater than 1, optionally, the first relationship satisfies any of the following:
[0098] The first DAI corresponds to the N PDSCH groups;
[0099] The first DAI corresponds to the first PDSCH group in the N PDSCH groups.
[0100] It should be noted that the first PDSCH group is one PDSCH group in the N PDSCH groups.
[0101] During specific implementation, the first PDSCH group may be any PDSCH group in the N PDSCH groups. Further, the first PDSCH group may satisfy any of the following:
[0102] The first PDSCH group is the PDSCH group wh...
Embodiment approach 2
[0117] Embodiment 2. The determination of the first relationship between the first DAI and N PDSCH groups includes:
[0118] Determine a first relationship between the first DAI and N PDSCH groups according to a preset rule;
[0119] Wherein, the preset rules include at least one of the following:
[0120] Determine the PDSCH group corresponding to the first DAI according to the PDSCH group where the target DCI is scheduled, and the target DCI is the DCI last detected by the terminal for scheduling the PDSCH in the N PDSCH groups;
[0121] Determine the PDSCH group corresponding to the first DAI according to the agreement;
[0122] Determine the PDSCH group corresponding to the first DAI according to the configuration information of the network side device.
[0123] For Embodiment 2, optionally, the first relationship satisfies any of the following:
[0124] The first DAI corresponds to the fifth PDSCH group in the N PDSCH groups, and the fifth PDSCH group is any one of the...
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Abstract
The present invention provides a method for generating a HARQ-ACK codebook, an information sending method, a terminal, and a network side device. The method includes: receiving first downlink control information DCI for scheduling a first physical uplink shared channel PUSCH, the first A DCI includes a first DAI; according to the first DAI, determine a second DAI corresponding to each PDSCH group in the N physical downlink shared channel PDSCH groups; according to the determined N second DAIs, generate a second DAI in the first PUSCH A dynamic codebook for transmission; wherein, the dynamic codebook includes the HARQ-ACK bit sequences of the N PDSCH groups, and N is a positive integer. The present invention provides a solution for generating a dynamic codebook containing the HARQ-ACK bit sequences of the N PDSCH groups based on the first DAI, thereby ensuring reliability of transmission of the dynamic codebook.
Description
technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method for generating a HARQ-ACK codebook, a method for sending information, a terminal, and a network side device. Background technique [0002] When the UE organizes the HARQ-ACK bit sequence that needs to be reported at a certain feedback moment, the UE is based on predefined rules and the physical downlink shared channel (PhysicalDownlink Shared Channel) on the single / multiple carriers that need to report HARQ-ACK at this feedback moment , PDSCH) transmission scheduling situation, determine the corresponding relationship between each PDSCH transmission and a certain / certain bit in the organized HARQ-ACK bit sequence, this operation is called constructing a HARQ-ACK codebook (Codebook). HARQ-ACK Codebook includes: semi-static codebook and dynamic codebook. [0003] The HARQ-ACK Codebook is generally transmitted on the PUCCH, but when t...
Claims
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