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HARQ-ACK information feedback method and device

A technology for information feedback and control information, applied in the field of HARQ-ACK information feedback methods and devices, capable of solving problems such as inability to distinguish between high-level services and low-level services

Active Publication Date: 2020-01-17
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a HARQ-ACK information feedback method and device to overcome the problem of inability to distinguish between high-level services and low-level services during transmission in unlicensed frequency bands

Method used

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  • HARQ-ACK information feedback method and device
  • HARQ-ACK information feedback method and device

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Embodiment Construction

[0077] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0078] combine first figure 1 A brief description of the system architecture applied to the HARQ-ACK information feedback method provided by this application, figure 1 The system schematic diagram of the HARQ-ACK information feedback method provided by the embodiment of this application, such as figure 1 Shown:

[0079] It includes a network de...

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PUM

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Abstract

The embodiment of the invention provides a HARQ-ACK information feedback method and device, and the method comprises the steps: receiving first control information sent by network equipment, and the first control information comprises priority information; based on thepriority information, sending an HARQ-ACK feedback codebook to the network device, the HARQ-ACK feedback codebook comprises HARQ-ACK information corresponding to the PDSCH with the high priority and / or HARQ-ACK information of the PDSCH with the low priority, and the PDSCH is a PDSCH corresponding to the first control information.The priority information is set in the first control information, so that the HARQ-ACK information of the PDSCH with high priority and the HARQ-ACK information of the PDSCH with low priority are distinguished, and the feedback information of the service with high priority and the service with low priority is effectively distinguished in the unlicensed spectrum.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a HARQ-ACK information feedback method and device. Background technique [0002] In the 5G NR communication system, Ultra Reliable & Low Latency Communication (URLLC) services are supported. [0003] Among them, the main technologies for 5G URLLC services to achieve low latency include: introducing smaller time resource units; uplink access adopts a scheduling-free permission mechanism, and terminals can directly access channels; support asynchronous processes to save uplink time synchronization overhead; Using fast automatic retransmission request (HARQ) and fast dynamic scheduling, etc., in order to realize fast feedback of high-priority downlink traffic, gNB will configure or indicate its transmission priority, such as high-priority or low-priority traffic. [0004] At present, relevant research on how to deploy NR networks on unlicensed spectrum has bee...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L1/16H04W72/12
CPCH04L1/1806H04L1/1812H04L1/1607H04W72/569H04W72/23
Inventor 周欢
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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