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Coding and decoding method and device

A coding method and decoding technology, applied in the direction of adjusting channel coding, using block codes for error correction/detection, using linear codes for error correction/detection, etc., can solve the problems of high complexity of PC-Polar code construction, and reduce Structure complexity, effect of ensuring performance

Active Publication Date: 2018-09-25
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] This application provides a method and device for encoding and decoding to solve the problem of high complexity in the construction of PC-Polar codes in the prior art

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  • Coding and decoding method and device
  • Coding and decoding method and device
  • Coding and decoding method and device

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Embodiment Construction

[0160] This application can be applied to scenarios where Polar encoding and decoding are performed on information bits, for example, it can be applied to scenarios where Polar encoding and decoding are performed on eMBB uplink control information and downlink control information, and can also be applied to other scenarios, such as communication The channel coding (Channel Coding), the uplink control information, the downlink control information and the channel coding part of the Sidelink channel in 5.1.3 of the standard 36.212 are not limited in this application.

[0161] The system of the present application may include a sending end and a receiving end, figure 1 A schematic diagram of the system architecture of the sending end and the receiving end provided for this application, such as figure 1 As shown, where the sending end is the encoding side, which can be used to encode and output encoded information, and the encoded information is transmitted to the decoding side on ...

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Abstract

The invention provides a coding and decoding method and device. The method comprises the following steps of acquiring information to be coded, a mother code length N and a reliability sequence Q of each sub-channel, and acquiring a set P corresponding to the sub-channel of puncturing bits or shortening bits and a set F corresponding to the sub-channel of frozen bits, wherein the information to becoded comprises K information bits; carrying out segmentation according to a preset interval from the sub-channel sequence number with the highest reliability, and setting sequence numbers of varioussegments in sequence, wherein the sequence number of an odd number segment is 2d+1, the sequence number of an even number segment is 2d+2, and d is a non-negative integer; selecting a set PF corresponding to the sub-channel of the frozen bits from each segment after segmentation according to a preset rule and a check frozen bit number PF, and taking the remaining sub-channels as a set I corresponding to the sub-channels of the information bits; and determining values of the bits on various sub-channel, and carrying out polar coding on all determined bits. Therefore, the construction complexityof the PC-Polar is simplified.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for encoding and decoding. Background technique [0002] Polar codes are the first and known channel coding method that can be rigorously proven to "achieve" channel capacity. Under different code lengths, especially for finite codes, the performance of Polar codes is much better than that of Turbo codes and LDPC codes. In addition, Polar codes have lower computational complexity in encoding and decoding. These advantages make Polar codes have great development and application prospects in the fifth-generation mobile communication technology (5th-generation, referred to as: 5G), and in the third generation partnership project (3rd Generation Partnership Project, 3GPP) wireless access Network) 87 meeting (Radio AccessNetwork, RAN1) was accepted for the control channel coding of enhanced mobile Internet (Enhanced Mobile Broad Band, eMBB)...

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Application Information

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IPC IPC(8): H03M13/13H04L1/00
CPCH03M13/13H04L1/0009H04L1/0056
Inventor 周悦张华滋李榕王俊乔云飞
Owner HUAWEI TECH CO LTD
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