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HARQ confirmation information feedback method and device

A technology for acknowledgment information and data channels, applied in the field of feedback methods and devices for HARQ acknowledgment information, capable of solving problems such as no feedback scheme for HARQ acknowledgment information, inability to receive PHICH, etc.

Active Publication Date: 2016-06-01
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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Problems solved by technology

[0005] Since the PHICH carrying the HARQ response information for the uplink shared channel data packets is sent in full bandwidth, UEs that only support 1.4MHz radio frequency bandwidth cannot receive PHICH. Currently, for MTC UEs that only support 1.4MHz radio frequency bandwidth, there is no HARQ confirmation information. Feedback Program

Method used

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  • HARQ confirmation information feedback method and device
  • HARQ confirmation information feedback method and device

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Embodiment Construction

[0169] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0170] figure 1 A schematic flowchart of a HARQ acknowledgment information feedback method provided in Embodiment 1 of the present invention, including the following steps 101 to 102:

[0171] Step 101, the network device determines the HARQ acknowledgment information of the uplink data channel that needs to be fed back to the terminal;

[0172] Step 102, the network device sends DCI to the terminal, and the DCI carries HARQ acknowledg...

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Abstract

One embodiment of the invention discloses a HARQ confirmation information feedback method and device. According to the method, HARQ confirmation information, in an uplink data channel, required to be fed back to a terminal is determined through a network device; the network device sends DCI to the terminal, wherein the DCI carries the HARQ confirmation information in the uplink data channel. In the embodiment of the invention, a new DCI format is defined, the DCI carrying the HARQ confirmation information is realized so that the HARQ confirmation information feedback is realized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for feeding back confirmation information of HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request). Background technique [0002] DCI (Downlink Control Information, downlink control information) is used to transmit scheduling information for downlink and uplink data transmission, uplink power control information, and the like. According to different purposes and information content, DCI is divided into different formats (DCIFormat). One piece of DCI can be carried by PDCCH (PhysicalDownlinkControlChannel, physical downlink control channel) or EPDCCH (EnhancedPhysicalDownlinkControlChannel, enhanced physical downlink control channel). [0003] The LTE (Long Term Evolution, Long Term Evolution) system uplink adopts a synchronous multi-process stop-and-wait HARQ mechanism, and retransmission must occur at a predefined time. The ...

Claims

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Application Information

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IPC IPC(8): H04L1/18
CPCH04L1/18
Inventor 邢艳萍沈祖康潘学明徐伟杰高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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