Patent ID: 11888500
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. The decoding circuit according to claim 9, wherein
the polar code is a systematic polar code or a non-systematic polar code,
the decoding circuit includes:
systematic polar processing circuitry to perform decoding processing of a systematic polar code; and
signal selecting circuitry to select a processing result from the systematic polar processing circuitry or a processing result from the decoding processing circuitry, and output the processing result selected to the decoded bit selecting circuitry,
the systematic polar processing circuitry includes:
second bit arrangement changing circuitry to generate a second bit sequence of the first code length by arranging the decoding candidates corresponding to the second code length selected by the decoding processing circuitry at positions same as positions where the first bit arrangement changing circuitry arranges the decoding candidates;
second polar encoding circuitry to perform polar encoding on the second bit sequence; and
thinning processing circuitry to select a code word of the second code length from a result of encoding by the second polar encoding circuitry, and
the control circuitry instructs the signal selecting circuitry to select the processing result from the systematic polar processing circuitry when a systematic polar code is decoded, and instructs the signal selecting circuitry to select the processing result from the decoding processing circuitry when a non-systematic polar code is decoded.