Reconfigurable polar code and low density parity check code decoder

Abstract

A reconfigurable polar code and low density parity check code decoder comprises an RDU cluster, a decoding controller, a storage controller and a reconfigurable memory, the decoding controller dynamically regroups the RDU of each code word in the RDU cluster according to a decoding mode and a decoding mode, generates an instruction word and outputs the instruction word to the RDU cluster and the storage controller, the storage controller generates a corresponding read-write control signal and an address signal according to the instruction word and outputs the read-write control signal and the address signal to the reconfigurable memory for read-write control, and the reconfigurable memory reads information data from the RDU cluster and writes in or reads information and outputs the information to the RDU cluster. According to the invention, the similarity of BP decoding algorithms of an LDPC code and a polarization code is utilized, the reconfigurable decoder of the reconfigurable LDPC code and the polarization code is realized, and compared with the mode of independently realizing LDPC decoding and polarization code decoding, the decoder has the advantages that hardware resources are saved, and the utilization rate of the hardware resources is improved.

Description

technical field [0001] The present invention relates to a technology in the field of wireless communication, in particular to a reconfigurable polar code and low-density parity-check code decoder compatible with 5G standards. Background technique [0002] Both LDPC codes and Polar codes can be decoded by belief propagation (BP) decoding, and the calculations of the BP decoding algorithms of the two codewords have a high similarity, enabling reconfigurable decoding structure is workable. Although polar codes and LDPC codes have been proven to provide both reliable control signaling and high-throughput data transmission, the decoding complexity is usually high. From the perspective of hardware resources, building polar and LDPC decoders in an independent manner will definitely lead to waste of hardware resources, so the decoding architecture can be reconfigured to achieve decoding that can decode both polar codes and LDPC codes. Encoder structure is very necessary, especiall...

AI Technical Summary

Problems solved by technology

Although polar codes and LDPC codes have been proven to provide both reliable control signaling and high-throughput data transmission, the decoding complexity is usually high

From the perspective of hardware resources, constructing polar and LDPC decoders in an independent manner will definitely lead to waste of hardware resources, so the decoding architecture can be reconfigured to realize the decoding of polar codes and LDPC codes. Encoder structure is very necessary, especially for 5G terminals with limited hardware resources and limited by battery

There is a reconfigurable decoding unit designed and implemented based on (12,6) LDPC codes. In the 5G standard, the length of LDPC codewords is much longer, and there are many types of codewords. The designed It is difficult to directly expand the reconfigurable decoder of LDPC code and polar code to the code word decoding under the 5G standard

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