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A multi-core polar code encoder supporting multi-code length and multi-code rate common mode

A multi-bit rate and polar code technology, applied in the field of communication, can solve problems such as low composition, resource redundancy, and difficulty in meeting performance standards, and achieve the effect of high throughput

Active Publication Date: 2022-07-26
BEIHANG UNIV
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Problems solved by technology

Using an independent method, the components that can be modeled are not high, and resource redundancy and performance are difficult to meet the standard

Method used

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  • A multi-core polar code encoder supporting multi-code length and multi-code rate common mode
  • A multi-core polar code encoder supporting multi-code length and multi-code rate common mode
  • A multi-core polar code encoder supporting multi-code length and multi-code rate common mode

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Embodiment Construction

[0066] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0067] Let the input code length of the polar code encoder be N, and the maximum code length is N max , the minimum value is N min . The number of information bits is K, and the length of the divided sub-polar code blocks is N 1 , N 1 It can be divisible by N; polar code reliability sequence information uses a depth of N and a bit width of log 2 index table of N means, such as Indicates that after the input positions are ranked according to reliability, the kth reliable position is j.

[0068] The first step is to pass the input code word through figure 1 The CRC generation module complements the length of the input coding module as K according to the CRC length and the generator polynomial in Table 2 1 information bits, and the K 1 The output result of the bit is input into the FIFO buffer. Table 2 is the functional description of...

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Abstract

The present invention provides a multi-core polar code encoder supporting multi-code length and multi-code rate common mode. The encoder includes a multi-core pipeline processing structure and an encoding core. Through the CRC generation module, N fills in the information sequence containing the CRC and inputs it into the first-in-first-out queue FIFO. Without considering puncturing, for the polarization process of N-long codewords, it needs to go through n=log 2 Butterfly operation of N layers, for the operation process to the i-th layer, it can be regarded as 2 n‑i The result of the i-layer butterfly operations, for the maximum value N of the code length in the multi-code length and multi-code rate max and the minimum value N min , first perform one or more input codes of length N min Butterfly polarization process operation, and then determine the following butterfly operation according to the actual code length N. The present invention is also oriented to the 5G standard, requires substantially less redundant resources, and ensures that the constructed coding scheme achieves high performance, thereby meeting the requirements for transmission reliability and indicators in communication.

Description

technical field [0001] The present invention relates to a polar code coding method and encoder capable of supporting multi-code length and multi-code rate common mode, in particular to a high-performance polar coding method and encoder for 5G standard discontinuous communication, belonging to the technical field of communications . Background technique [0002] Polar code is a new type of channel coding proposed by E. Ar1kan in 2009, and it is the first structural channel coding scheme that can achieve channel capacity. Polar codes are implemented based on channel polarization. Channel polarization is to treat a set of independent time slots of a binary input memoryless channel as a set of mutually independent channels, and to introduce correlation through channel division and channel combination operations, so as to obtain a set of independent time slots. Group new binary input polarized channels with interdependencies. When the number of channels (timeslots) participatin...

Claims

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Application Information

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IPC IPC(8): H03M13/11
CPCH03M13/11
Inventor 刘荣科黄为豪
Owner BEIHANG UNIV
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