Unlock instant, AI-driven research and patent intelligence for your innovation.

Polar code rate matching method and device

A rate matching and de-rate matching technology, applied in the field of communication

Pending Publication Date: 2021-12-17
HUAWEI TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in satellite communication, it is not yet clear which channel coding method to use. If the Polar code is to be introduced into the satellite communication system, what design needs to be carried out to meet the requirements becomes a problem that needs to be solved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polar code rate matching method and device
  • Polar code rate matching method and device
  • Polar code rate matching method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053]Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0054] If the characteristics of satellite communication are not considered, and the Polar code encoding method in the existing 5G standard is directly copied to satellite communication, there will be at least the following problems: 1) The Polar code in the current 5G standard is only used for the control channel, so It may not be fully applicable to data channels; 2) In the current 5G standard, the mother code length of the Polar code is up to 1024, so the supported data packet length is limited. Therefore, it is necessary to redesign the encoding method of the Polar code so as to be more suitable for satellite communication and also suitable for ground communication.

[0055] The embodiment of the present application provides a Polar code rate matching method and device. According to the reliability of the polarization sub-channels, online calculat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a Polar code rate matching method, a Polar code rate matching device and a medium, which are used in satellite communication and can improve the reliability of a system. The method comprises the steps: obtaining K bits to be coded, and obtaining a mother code length N, wherein N = 2n, K, n and N are positive integers; performing polarization coding on the K bits to be coded according to the mother code length N, performing rate matching on a bit sequence after polarization coding according to a rate matching sequence, and outputting the bit sequence. According to a given rate matching sequence, the operation of rate matching can be simplified.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a Polar code rate method and device. Background technique [0002] As the most basic wireless access technology, channel coding plays a vital role in ensuring the reliability of data transmission. In an existing wireless communication system, generally, Turbo codes, low density parity check codes (low density parity check, LDPC) and polarization (Polar) codes are used for channel coding. Turbo codes cannot support information transmission with too low or too high a code rate. For the transmission of short and medium packets, Turbo codes and LDPC codes are difficult to achieve ideal performance under limited code length due to their own coding and decoding characteristics. In terms of implementation, Turbo codes and LDPC codes have high computational complexity in the process of encoding and decoding. Polar codes are theoretically prove...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/13
CPCH03M13/13H03M13/6368H03M13/618H03M13/6306H04L1/0057H04L1/0067H04L1/0041H03M13/27H03M13/6362
Inventor 戴胜辰李榕童佳杰张华滋王献斌王俊黄威皇甫幼睿
Owner HUAWEI TECH CO LTD