Hybrid automatic repeat request feedback method and device

A hybrid automatic retransmission and retransmission technology, applied in the communication field, can solve problems such as the inability to meet low-latency service requirements, and achieve the effects of quickly executing HARQ feedback, increasing the number of data retransmissions, and improving verification accuracy

Active Publication Date: 2020-09-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the existing technology cannot meet the low-latency service requirements, the embodiment of the present invention provides a hybrid automatic repeat request feedback method and device

Method used

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  • Hybrid automatic repeat request feedback method and device
  • Hybrid automatic repeat request feedback method and device
  • Hybrid automatic repeat request feedback method and device

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0047] Please refer to Picture 1-1 , which shows a schematic diagram of an implementation environment involved in various embodiments of the present application. The implementation environment may include a sending end 01 and a receiving end 02. The sending end 01 and the receiving end 02 use HARQ feedback technology for data transmission. Exemplarily, the transmitting end 01 may be a base station (Base Station, BS), may also be a user equipment (User Equipment, UE), and may also be other equipment supporting the HARQ feedback technology. The receiving end 02 may be a device supporting HARQ feedback technology, such as a BS or a UE. The data transmitted in the embodiment of the present invention is the data to be transmitted a...

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Abstract

The invention discloses a hybrid automatic repeat request feedback method and device, belonging to the technical field of communication. The hybrid automatic repeat request feedback method is used at the receiving end. After receiving the data information sent by the sending end, the receiving end can determine the measured value of the target data when the target data in the data information has not been verified, and then according to the measured value Generate feedback information, and then send feedback information to the sender, so that the sender can determine whether to retransmit the target data according to the feedback information. Since the total time for sending feedback information is reduced each time, the consumed TTI is shorter, so the present invention solves the problem of The existing technology cannot meet the problem of low-latency business requirements, but can meet the low-latency business requirements for data transmission.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a hybrid automatic repeat request feedback method and device. Background technique [0002] The Hybrid Automatic Repeat Request (HARQ) feedback method is widely used in a variety of wireless communication systems, such as Wideband Code Division Multiple Access (WCDMA) systems and Long Term Evolution (LTE) wait. The HARQ feedback method can well compensate the influence of time-varying wireless mobile channel and multipath fading on signal transmission, and improve the robustness of the system. [0003] In the prior art, there is a HARQ feedback method. Through this method, after receiving the data sent by the sending end, the receiving end sequentially performs decoding and cyclic redundancy check (Cyclic Redundancy Check, CRC) on the data, and according to the calibration The test result sends feedback information to the sender. When the feedback information ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/20H04L1/1812H04B17/336H04L1/0003H04L1/0071H04L1/1819H04L1/203H04L5/0055H04L5/0082
Inventor 姜玥朱有团胡宏杰
Owner HUAWEI TECH CO LTD
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