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Codebook generation method and device

A codebook and time domain technology, applied in the field of codebook generation methods and devices, can solve problems such as inability to feed back HARQ-ACK information at the same time, inability to apply a semi-static codebook generation method, etc., and achieve an effect that is beneficial to reliability

Active Publication Date: 2021-02-23
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when PDSCH overlaps in the time domain, the generation method of the semi-static codebook in the current standard cannot be applied in some cases, and the HARQ-ACK information of the PDSCH with overlapping time domain cannot be fed back at the same time.

Method used

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  • Codebook generation method and device
  • Codebook generation method and device

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Embodiment Construction

[0038] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0039] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0040] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific ord...

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Abstract

The invention provides a codebook generation method and device and belongs to the technical field of wireless communication. The codebook generation method is applied to a terminal, and comprises thefollowing steps of when a plurality of PDSCHs (Physical Downlink Shared Channel) received in a current time slot are overlapped in a time domain, generating a codebook, and determining the bit numberand / or the feedback position of the HARQACK needing to be fed back according to hybrid automatic repeat request (HARQ) time sequence information for scheduling the downlink control information of thePDSCH and / or the time when the time domain allocation item corresponding to the PDSCH belongs to in the generation of the semi-static HARQACK codebook. The method is advantaged in that a codebook generation scheme suitable for PDSCH scheduling with time domain overlapping can be provided.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for generating a codebook. Background technique [0002] In the current NR (New Radio, new air interface) standard, two HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request)-ACK (confirmation) codebook generation methods are defined. One of them is called a semi-static codebook. The number of HARQ-ACK bits contained in the codebook and the PDSCH (Physical Downlink Shared Channel) information corresponding to each bit depend on the semi-static time slot structure configuration of the cell, Terminal TDRA (Time Domain Resource Allocation) configuration table, terminal feedback timing configuration (that is, the length of time between PDSCH and fed back HARQ-ACK information, hereinafter referred to as K1 configuration), etc. [0003] The terminal only feeds back 1 bit of HARQ-ACK information for each occasion (opportunity)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04W72/04H04W72/12
CPCH04L1/1607H04W72/0446H04W72/23
Inventor 周伟倪吉庆
Owner CHINA MOBILE COMM LTD RES INST
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