METHOD AND DEVICE FOR PERFORMING CHANNEL CODING ON BASIS OF POLAR CODING IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210328716A1

    公开(公告)日:2021-10-21

    申请号:US17272056

    申请日:2019-08-27

    Abstract: A method for transmitting signals using polar coding to a second device by means of a first device according to the present disclosure may include: a step for encoding a first bit sequence of length K which includes a first information block, a second information block, a first cyclic redundancy check (CRC) for the first information block, and a second CRC for the second information block, on the basis of a polar code of size N; a step for transmitting a first signal on the basis of the encoded first bit sequence; a step for receiving first hybrid automatic repeat request acknowledgement/negative-acknowledgement (HARQ ACK/NACK) information for the first bit sequence; a step for dividing the second information block into a first sub information block and a second sub information block and generating a third CRC for the first sub information block, on the basis of the first HARQ ACK/NACK information including information indicating failure of the transmission of the second information block; a step for encoding a second bit sequence of length L including the third CRC, on the basis of the polar code; and a step for transmitting a second signal on the basis of the encoded second bit sequence.

    METHOD AND APPARATUS FOR TRANSMITTING CONTENTION-BASED DATA IN WIRELESS COMMUNICATION SYSTEM TO WHICH NON-ORTHOGONAL MULTIPLE ACCESS SCHEME IS APPLIED

    公开(公告)号:US20210289546A1

    公开(公告)日:2021-09-16

    申请号:US16334619

    申请日:2017-07-27

    Abstract: Provided are a method and a device for performing communication using a non-orthogonal code multiple access scheme in a wireless communication system. Specifically, a terminal divides a terminal identifier into a first field, a second field, a third field and a fourth field and selects a first reference signal, a second reference signal, a third reference signal and a fourth reference signal. On the basis of the first reference signal, the second reference signal, the third reference signal or the fourth reference signal, the terminal transmits contention-based data to a base station. The first reference signal is selected on the basis of the first field and the maximum number of reference signals. The second reference signal is selected on the basis of the second field and the maximum number of reference signals. The third reference signal is selected on the basis of the third field and the maximum number of reference signals. The fourth reference signal is selected on the basis of the second field and the maximum number of reference signals.

    METHOD AND APPARATUS FOR TRANSMITTING INFORMATION

    公开(公告)号:US20200186284A1

    公开(公告)日:2020-06-11

    申请号:US16623283

    申请日:2018-06-18

    Abstract: A transmission apparatus: encodes information into a first bit sequence, using a polar code; outputs a second bit sequence by inputting the first bit sequence to an interleaver; modulates the second bit sequence into modulation symbols according to a modulation order; and transmits the modulation symbols. The interleaver: has an odd number of columns; and is configured to cyclically read and output, from column k, bits stored in row n of the interleaver, and cyclically read and output, from column k+a, bits stored in row n+1 of the interleaver, wherein a represents an integer which is not 0.

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