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Method and device for sending and receiving codebook information

A technology of codebook information and codebook identification information, which is applied in the field of receiving codebook information and sending, and can solve the problems of large delay in downlink data transmission and other issues

Inactive Publication Date: 2019-11-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the current ACK / NACK feedback method has a great impact on the transmission delay of downlink data

Method used

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  • Method and device for sending and receiving codebook information
  • Method and device for sending and receiving codebook information
  • Method and device for sending and receiving codebook information

Examples

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0057] In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

[0058] 1) Terminal equipment, including equipment that provides voice and / or data connectivity to users, for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network (radio access network, RAN), and exchange voice and / or data with the RAN. The terminal equipment may include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit),...

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Abstract

The invention discloses a method and a device for sending and receiving codebook information, which are used for reducing downlink transmission time delay. The method for sending codebook informationcomprises the following steps: receiving at least one physical downlink data channel in a candidate receiving opportunity in the first time unit set, wherein the first time unit set comprises M candidate receiving opportunities, the M candidate receiving opportunities are divided into a first candidate receiving opportunity subset and a second candidate receiving opportunity subset according to codebook identification information, the first codebook identification information included in the codebook identification information corresponds to the first candidate receiving opportunity subset, and the second codebook identification information corresponds to the second candidate receiving opportunity subset; generating a feedback information codebook according to the receiving state of at least one physical downlink data channel, the feedback information codebook comprising a first codebook and a second codebook, the first codebook corresponding to the first candidate receiving opportunity subset, and the second codebook corresponding to the second candidate receiving opportunity subset; and sending the first codebook and / or the second codebook in the second time unit.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for sending and receiving codebook information. Background technique [0002] Hybrid automatic repeat request (HARQ) is an efficient transmission mechanism. On the one hand, the reliability of downlink data transmission can be greatly improved through retransmission. On the other hand, the terminal equipment feeds back the HARQ affirmation to the base station. Acknowledgment (ACK) / Negative Acknowledgment (NACK), only when the terminal equipment feeds back NACK, the base station needs to retransmit, which reduces the overall resource consumption of data transmission. [0003] At present, the 3rd generation partnership project (3rd generation partnership project, 3GPP) determines in the new radio (new radio, NR) standard that the ACK / NACK fed back in one slot (slot) needs to be jointly coded into one HARQ- The ACK codebook uses one physic...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/18H04L5/00
CPCH04L1/1607H04L1/1812H04L5/0055H04L1/16H04L1/18H04L5/00
Inventor 李胜钰官磊马蕊香吕永霞邵家枫
Owner HUAWEI TECH CO LTD
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