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Downlink HARQ feedback method and device, and terminal and base station

A technology for base stations and terminals, applied in downlink HARQ feedback methods and devices, terminals and base stations, can solve problems such as being unable to better apply to 5G systems

Active Publication Date: 2019-01-01
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Disclosed are a downlink HARQ feedback method and device, and a terminal and a base station. The method comprises: sending terminal capability information to a base station, wherein the terminal capability information comprises first terminal capability information used for indicating that a terminal supports a low-time-delay service, and second terminal capability information used for indicatingthat the terminal requests the base station to configure, for the terminal, a target feedback type corresponding to the low-time-delay service, the target feedback type being used for indicating thatthe terminal uses, when feeding an HARQ result of downlink data back to the base station, an independent downlink feedback channel configured by the base station for the terminal; receiving a feedbacktype configured for the terminal and returned by the base station; and when the feedback type is consistent with the target feedback type, feeding the HARQ result of the downlink data back to the base station via the downlink feedback channel configured by the base station for the terminal. In the present disclosure, a terminal quickly carries out the feeding back of an HARQ result of downlink data by using an independent downlink feedback channel corresponding to a low-time-delay service, thereby realizing low-time-delay synchronous feedback, and satisfying low-time-delay service requirements in a 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 Applications(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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