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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.
Inventor： Wei-De WU , Chia-Wei TAI , Mao-Ching CHIU
CPC classification number: H03M13/6362 , H03M13/13 , H03M13/155 , H03M13/618 , H04B1/04 , H04L1/0058 , H04L1/0068
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.
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公开(公告)号：US20210144677A1
公开(公告)日：2021-05-13
申请号：US17157108
申请日：2021-01-25
Applicant: MEDIATEK INC.
Inventor： Wei-De WU , Chia-Wei TAI , Yen-Cheng LIU
Abstract: Aspects of the disclosure provide a method and device performing input bit allocation that includes receiving broadcasting information bits, generating timing related bits for the broadcasting information bits, and selecting a portion of the generated timing related bits. The method and device can further include allocating each of the selected timing related bits to selected input bits of an encoder, so that each of the selected timing related bits is allocated to an input bit of the encoder corresponding to an available bit channel of the encoder where the selected inputs bits of the encoder correspond to encoded bits that are located in a front portion of the encoded bits.
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