LOW COMPLEXITY RATE MATCHING FOR POLAR CODES

    公开(公告)号:US20180026663A1

    公开(公告)日:2018-01-25

    申请号:US15653048

    申请日:2017-07-18

    Applicant: MEDIATEK INC.

    Abstract: Aspects of the disclosure provide polar code rate matching methods. A first method can include determining whether to puncture or shorten a mother polar code according to a mother code rate and/or a rate matched code rate, and selecting K positions in the sequence of N input bits for input of K information bits to a polar encoder according to an offline prepared index list ordered according to the reliabilities of respective synthesized channels. Frozen input bits caused by puncturing or shortening are skipped during the selection. A second method includes generating a mother polar code, rearranging code bits of the mother polar code to form a rearranged sequence that can be stored in a circular buffer, and performing, in a unified way, one of puncturing, shortening, or repetition on the rearranged sequence to obtain a rate matched code.

    METHOD AND APPARATUS FOR DATA TRANSMISSION
    2.
    发明申请

    公开(公告)号:US20190132087A1

    公开(公告)日:2019-05-02

    申请号:US16086557

    申请日:2017-04-01

    Applicant: MEDIATEK INC.

    Abstract: Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a baseband processing circuit. The transceiver circuit is configured to transmit signals that carry a data unit to another apparatus and receive signals that carry a response from the other apparatus. The baseband processing circuit is configured to provide a first digital stream to carry a data unit to the transceiver circuit for transmission, and provide a second digital stream to carry a portion of the data unit to the transceiver circuit for retransmission when the transceiver circuit receives a response that is indicative of a partial receiving failure of the data unit at the other apparatus.

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