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Data transmission method, sending device, receiving device, and communication system

A data transmission method and technology for receiving equipment, applied in digital transmission systems, transmission systems, transmission modification based on link quality, etc., can solve the problems of decoding complexity and storage overhead increase of receiving equipment 31, and save storage overhead , the effect of reducing the decoding complexity

Active Publication Date: 2018-06-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The larger the parity check matrix, the more coded bits generated by encoding the information data, the lower the code rate, and the decoding complexity and storage overhead of the receiving device 31 will also increase significantly

Method used

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  • Data transmission method, sending device, receiving device, and communication system
  • Data transmission method, sending device, receiving device, and communication system
  • Data transmission method, sending device, receiving device, and communication system

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Embodiment Construction

[0135] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the described embodiments are only some of the embodiments of the present invention, not all of them. example. 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.

[0136] Such as image 3 As shown, the communication system 300 includes a sending device 30 and a receiving device 31. When sending information data, the sending device 30 divides the information data into multiple transmission blocks (transmission block, TB) according to the size of the supported transmission block, and transmits each A CRC check is added to a transmission block. If the size of the transmission block a...

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Abstract

The invention discloses a data transmission method, a sending device, a receiving device, and a communication system. The sending device is used for sending a first transmission block, the sending device acquires a coding bit segment from a first coding block, the first coding code is obtained after LDPC coding on a first code in the first transmission block according to processing capability of the receiving device, and the sending device sends the coding bit segment to the receiving device. Due to consideration of the processing capability of the receiving device, storage overhead of the sending device or the receiving device is reduced, coding or decoding complexity is lowered, and decoding success rate is improved.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, to a data transmission method, a sending device, a receiving device, and a communication system. Background technique [0002] In a communication system, information data is transmitted between a sending device (such as a base station or a terminal) and a receiving device (such as a terminal or a base station). Due to the complex and changeable wireless propagation environment, it is susceptible to interference and errors. In order to reliably send information data, the sending device performs CRC check, channel coding, rate matching, interleaving and other processing on the information data, and maps the coded bits after interleaving into modulation symbols and sends them to the receiving device. After the receiving device receives the modulation symbols, it correspondingly de-interleaves, de-rate-matches, decodes, and CRC checks to restore the information d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0009H04L1/0045H04L1/0061H04L1/0063H03M13/116H03M13/6306H03M13/6393H03M13/3769H04L1/0057H04L1/0041H04L1/18H03M13/1111H03M13/118H04L1/0013
Inventor 马亮郑晨熊杰曾歆刘晓健魏岳军
Owner HUAWEI TECH CO LTD
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