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Data transmission method, device and equipment

A data transmission method and equipment technology, applied in the field of wireless communication, capable of solving problems such as high signaling overhead

Active Publication Date: 2017-12-22
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the signaling overhead of this retransmission method in a wireless communication system is very large

Method used

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  • Data transmission method, device and equipment
  • Data transmission method, device and equipment
  • Data transmission method, device and equipment

Examples

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Embodiment Construction

[0078] Reference will now be made in detail to the various embodiments of the invention, examples of which are illustrated in the accompanying drawings. While described in conjunction with these Examples, it will be understood that they are not intended to limit the invention to these Examples. On the contrary, the present disclosure is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the present invention as defined in the appended claims. In addition, in the following detailed description of the invention, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It is understood, however, that in practice these specific details of the invention may not be included. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present invention.

[0079] f...

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Abstract

The embodiment of the invention provides a data transmission method which comprises the steps of: carrying out polar code encoding on to-be-encoded bits to obtain a mother code, wherein a code length of the mother code is related to K and Mi, i=1, 2,..., K, K represents sending times, Mi represents a length of bits sent at an ith time, and K and Mi are positive integers greater than 1; carrying out rate matching on the mother code to obtain to-be-sent bits, wherein the number of the to-be-sent bits is a sum of lengths of bits sent for K times; and sending Mi to-be-sent bits at the ith time. By utilizing sending times in the polar code encoding process, the mother code which further accords with the actual transmission demands can be obtained, so that encoding amplification of a polar code can be sufficiently utilized; and moreover, a signaling does not need to be sent in real time to request for retransmission, so that signaling cost can be reduced.

Description

technical field [0001] Embodiments of the present invention relate to wireless communication technologies, and in particular, to a data transmission method, device and equipment. Background technique [0002] With the development of wireless communication, the Internet of Things (English: Internet of Things; IoT for short) communication system presents some new features, such as high reliability, low complexity, and wide coverage. [0003] However, existing mainstream codes, such as Turbo codes and Low Density Parity Check (English: Low Density Parity Check; LDPC for short) codes cannot well meet the requirements of IoT communication systems. In terms of performance, although Turbo codes and LDPC codes can approach the Shannon limit as the code length increases, it is difficult for Turbo codes and LDPC codes to achieve ideal performance under limited code lengths due to their own coding and decoding characteristics. In terms of implementation, Turbo codes and LDPC codes hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0013H04L1/0064H04L1/00H04L1/0057H04L1/0069H04L1/08H04L1/189H03M13/13H03M13/6362H04L1/0041H04L5/0051
Inventor 陈莹罗禾佳李榕
Owner HUAWEI TECH CO LTD
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