Indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices

A technology for indication and new data indication, which is applied in the field of HARQ retransmission indication method and related equipment, and can solve the problems that the uplink HARQ retransmission cannot be used on the PHICH channel, and the uplink or downlink transmission cannot be guaranteed.

Inactive Publication Date: 2016-09-28
SHENZHEN GIONEE COMM EQUIP
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Problems solved by technology

However, in the LAA system, due to the introduction of the LBT mechanism, there is no guarantee that the uplink or downlink transmission can be carried out, so 3GPP has decided to cancel the downlink feedback of the PHICH channel in the LAA system, so the PHICH channel cannot be used to indicate whether the uplink HARQ needs retransmit

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  • Indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices
  • Indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices
  • Indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] The embodiments of the present invention provide a HARQ retransmission indication method and related equipment. In a system in which a licensed spectrum assists an unlicensed spectrum, the introduction of the LBT mechanism prevents the PHICH channel from performing downlink feedback during the uplink HARQ transmission process. , the base station can generate DCI information in a new format and transmit it through the PDCCH channel, so ...

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Abstract

Embodiments of the invention provide an indication method for HARQ (Hybrid Automatic Repeat reQuest) retransmission and associated devices. The method comprises the following steps that a base station receives an uplink signal of a terminal on a PUSCH (Physical Uplink Shared Channel) corresponding to a target transmission block in a process for a licensed spectrum to assist an unlicensed spectrum to carry out uplink non-adaptive HARQ; the base station decodes the uplink signal of the terminal to obtain a decoding result; the base station generates DCI (Downlink Control Information) in a target format according to the decoding result, wherein the DCI in the target format is used for indicating whether the terminal needs to carry out uplink non-adaptive HARQ retransmission; and the base station sends the DCI in the target format to the terminal through a PDCCH (Physical Downlink Control Channel), so that the terminal analyzes the DCI in the target format to determine whether to carry out uplink non-adaptive HARQ retransmission on the target transmission block. Through implementing the embodiments, a new DCI format is added to carry out indication of the uplink non-adaptive HARQ retransmission.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a HARQ retransmission indication method and related equipment. Background technique [0002] With the popularization of user equipment and the sharp increase of communication traffic, the licensed spectrum is increasingly insufficient to provide higher network capacity. In order to meet the growing network demand, expanding the use of unlicensed spectrum on the basis of licensed spectrum has become an important feasible direction. 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) organization proposes LAA (Licensed Assisted Access, Licensed Assisted Access) technology to realize the use of unlicensed spectrum resources with the assistance of licensed spectrum. In order to make the licensed spectrum and unlicensed spectrum better coexist, the LBT (Listen BeforeTalk) mechanism is introduced into the LAA system, that is, the channel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
CPCH04L1/18H04L1/1812
Inventor 朱广勇
Owner SHENZHEN GIONEE COMM EQUIP
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