公开(公告)号：US20220329350A1

公开(公告)日：2022-10-13

申请号：US17717766

申请日：2022-04-11

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon SUNWOO ,  Jae Hong ROH ,  U Seok LEE

IPC: H04L1/00 ,  H03M13/11

Abstract: Disclosed are an apparatus and method for successive cancellation flip decoding of a polar code. The apparatus for successive cancellation flip decoding of a polar code according to an embodiment includes an iterative unit subtotal matrix generator configured to generate an iterative unit subtotal matrix corresponding to a preset iterative unit size based on a portion of an entire subtotal matrix, a selection logic configured to determine one or more selection bits based on a bit string representing a position of a bit returned when re-decoding and generate an auxiliary matrix for generating the entire subtotal matrix from the one or more selection bits, and an entire subtotal matrix generator configured to generate the entire subtotal matrix by using the iterative unit subtotal matrix and the auxiliary matrix.

公开(公告)号：US20220231702A1

公开(公告)日：2022-07-21

申请号：US17455729

申请日：2021-11-19

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon SUNWOO ,  Chan HWANGBO ,  U Seok LEE

IPC: H03M13/13 ,  H03M13/00 ,  G06F11/10

Abstract: An apparatus for inserting an error correction code according to an embodiment includes an identifier configured to identify a plurality of critical sets included in a codeword generated using a polar code, based on the number of information bits and a total code length of the codeword, a divider configured to divide the codeword into a plurality of partitions, and an inserter configured to insert an error correction code into each of the divided partitions based on a distribution position of each of the plurality of critical sets.

公开(公告)号：US20230084339A1

公开(公告)日：2023-03-16

申请号：US17884935

申请日：2022-08-10

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon SUNWOO ,  U Seok LEE

IPC: H03M13/11 ,  H03M13/00 ,  G06F7/501

Abstract: Disclosed are a method and apparatus for generating a decoding position control signal for decoding using polar codes. The method and apparatus for generating a decoding position control signal for decoding using polar codes according to an embodiment of the present disclosure include generating a decoding tree obtained by forming a plurality of nodes in a hierarchical structure for a polar-encoded codeword, decoding the codeword using a successive cancellation (SC) decoding technique, and generating control signal through a preset operation relationship based on a position of a bit returned during re-decoding among the decoded codeword.

公开(公告)号：US20220255565A1

公开(公告)日：2022-08-11

申请号：US17530999

申请日：2021-11-19

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Myung Hoon SUNWOO ,  U Seok LEE

IPC: H03M13/37 ,  H03M13/13 ,  H03M13/45

Abstract: A polar code decoding apparatus according to an embodiment includes a divider configured to generate a decoding tree in which a plurality of nodes including one or more critical sets for a polar-encoded codeword are formed in a hierarchical structure, and divide the decoding tree into one or more partitions, each partition equally including lowest nodes of the decoding tree, a determiner configured to determine a memory size for storing a primary decoding result based on a specific partition, the specific partition being selected from among the one or more partitions based on the number of critical sets included in each partition, and a decoder configured to decode the codeword primarily by using a successive cancellation (SC) decoding technique.