METHOD FOR SELECTING LDPC BASE CODE IN MULTIPLE LDPC CODES AND APPARATUS THEREFOR

    公开(公告)号:US20210167800A1

    公开(公告)日:2021-06-03

    申请号:US16065548

    申请日:2018-01-05

    Abstract: A method of encoding a quasi-cyclic low-density parity-check (QC LDPC) code supporting multiple base codes includes selecting a base code for generating a parity check matrix from among a first base code and a second base code, selecting a lifting value for generating the parity check matrix from among a plurality of lifting values, and generating the parity check matrix using the selected base code and the selected lifting value, wherein the base code is determined based on a code block size and a code rate, and the lifting value is determined based on a parameter of the base code and the code block size.

    DATA RETRANSMISSION METHOD FOR POLAR CODE, AND DEVICE THEREFOR

    公开(公告)号:US20190140663A1

    公开(公告)日:2019-05-09

    申请号:US16310266

    申请日:2017-06-12

    Abstract: A data retransmission method for a polar code, and a device therefor are disclosed. The data retransmission method of the disclosure can comprise the steps of: generating a first data block by allocating a plurality of data bits to input bits, with high priorities, among input bits of a polar code encoding module on the basis of a target encoding rate; transmitting the generated first data block; generating a second data block by allocating first data bits among the plurality of data bits to input bits, with low priorities, among the input bits of the polar code encoding module, on the basis of the target encoding rate and shortening bits; and transmitting the generated second data block as a retransmission of the first data block.

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