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Downlink harq feedback method and device, terminal and base station

A technology for base stations and terminals, which is used in the use of return channels for error prevention/detection, digital transmission systems, and forward error control. It can solve problems such as being unable to better apply to 5G systems.

Active Publication Date: 2021-07-06
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the 5G or NR (New Radio) system, the scheduling unit can adopt different units according to the capabilities of the terminal. Therefore, the downlink HARQ feedback method in the related art cannot be better applied to the 5G system

Method used

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  • Downlink harq feedback method and device, terminal and base station
  • Downlink harq feedback method and device, terminal and base station
  • Downlink harq feedback method and device, terminal and base station

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Embodiment Construction

[0088] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0089] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be unders...

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Abstract

The present disclosure provides a downlink HARQ feedback method and device, a terminal, and a base station, wherein the method includes: sending terminal capability information to the base station, and the terminal capability information includes: first terminal capability information used to indicate that the terminal supports low-latency services, and is used to indicate that the terminal requests the base station to configure the second terminal capability information corresponding to the target feedback type of the low-latency service for itself, and the target feedback type is used to indicate that when the terminal feeds back the HARQ result of the downlink data to the base station, the base station configures the terminal for the terminal. Independent downlink feedback channel; receive the feedback type configured for the terminal returned by the base station; when the feedback type is consistent with the target feedback type, feed back the HARQ result of the downlink data to the base station through the downlink feedback channel configured by the base station for itself. In this disclosure, the terminal adopts an independent downlink feedback channel corresponding to low-latency services to quickly perform HARQ result feedback of downlink data, thereby realizing low-latency synchronous feedback and meeting the low-latency service requirements in the 5G system.

Description

technical field [0001] The present disclosure relates to the communication field, and in particular to a downlink HARQ feedback method and device, a terminal and a base station. Background technique [0002] In related technologies, a PHICH channel (Physical Hybrid ARQ Indicator Channel, Physical Hybrid ARQ Indicator Channel) is defined in the LTE (Long Term Evolution, Long Term Evolution) system, which is used to feed back the HARQ ( Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) result. [0003] However, in the 5G NR (New Radio) system, the scheduling unit can adopt different units according to the capabilities of the terminal. Therefore, the downlink HARQ feedback method in the related art cannot be better applied to the 5G system. Contents of the invention [0004] In view of this, the present disclosure provides a downlink HARQ feedback method and device to solve the deficiencies in related technologies. [0005] According to the first aspect of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L1/18H04W72/12
CPCH04L1/0073H04L1/1607H04L1/1806H04L1/1812H04W72/1273H04L1/16H04L1/18H04W72/04
Inventor 刘洋
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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