公开(公告)号：US20220278772A1

公开(公告)日：2022-09-01

申请号：US17749854

申请日：2022-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min JANG ,  Hyuntack LIM

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/00

Abstract: The disclosure proposes a technique for achieving validity decision performance of a suitable level in communication and broadcasting systems using a polar code. The polar code is a channel code in which it is difficult to use a syndrome check due to a successive cancellation (SC)-based decoding operation and coding structure. Accordingly, in the communication of the related art and broadcasting systems using the polar code, a validity check of a decoding result has been performed by using a path-metric (PM) generated during decoding and a concatenated error detection code, such as a cyclic redundancy check (CRC) code. However, it is difficult to achieve target error detection performance only via such methods when the length of the CRC code is short or when input and output lengths of a code are short. In this regard, an embodiment of the disclosure proposes a method for obtaining a Euclidean distance-based metric between a received signal and a decoded signal by using an estimated codeword output bit sequence, and performing post error detection based on this.

公开(公告)号：US20250096941A1

公开(公告)日：2025-03-20

申请号：US18959323

申请日：2024-11-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min JANG ,  Seho MYUNG ,  Youngwoo KIM ,  Joohyun LEE ,  Hyuntack LIM

IPC: H04L1/1607 ,  H04L1/00 ,  H04L5/00

Abstract: A decoding method performed by a receiver of a communication system, according to an embodiment, comprises: receiving a signal transmitted from a transmitter; identifying a parity check matrix for decoding the signal; identifying a first layer scheduling sequence corresponding to the parity check matrix; and performing layered decoding on the basis of at least a part of the parity check matrix and at least a part of the first layer scheduling sequence.

公开(公告)号：US20230318665A1

公开(公告)日：2023-10-05

申请号：US18173379

申请日：2023-02-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuntack LIM ,  Hayoung YANG ,  Joohyun LEE

IPC: H04B7/0417 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/061

Abstract: An iterative detection and decoding (IDD) device in a receiving device of a wireless communication system by using multiple-input multiple-output (MIMO) and a channel code by connecting is provided. The IDD device includes an MIMO detector that generates an output log likelihood ratio (LLR) value by using signals received from a plurality of antennas and a feedback LLR value, a channel decoder for outputting a channel decoded LLR value through channel decoding and a second operation by using the LLR value of the MIMO detector, and a feedback compensator for generating the feedback LLR value so that the channel decoded LLR value is within the range of an upper threshold and a lower threshold determined based on a bit width of an LLR used by the receiving device.

公开(公告)号：US20220140944A1

公开(公告)日：2022-05-05

申请号：US17433152

申请日：2020-02-21

Applicant: Samsung Electronics Co., Ltd. ,  Research & Business Foundation Sungkyunkwan University

Inventor： Min JANG ,  Sanghyo KIM ,  Hyunjae LEE ,  Hyosang JU ,  Jonghwan KIM ,  Hyuntack LIM ,  Hongsil JEONG

IPC: H04L1/00 ,  H04L1/20

Abstract: The present disclosure relates to a 5th (5G) generation) or pre-5G communication system for supporting a higher data transmission rate beyond a 4th (4G) generation communication system such as long term evolution (LTE). The present disclosure relates to false alarm detection of detecting in a wireless communication system, and an operating method of a receiving node may include receiving a signal from a transmitting node, obtaining a plurality of decoding paths by decoding bits contained in the received signal, and determining whether the decoding is successful based on a detection metric determined based on values representing path metrics of the plurality of the decoding paths.

公开(公告)号：US20210013902A1

公开(公告)日：2021-01-14

申请号：US16914801

申请日：2020-06-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min JANG ,  Hyuntack LIM ,  Hongsil JEONG

IPC: H03M13/15 ,  H04B1/06

Abstract: The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system, such as a long-term evolution (LTE). A method of a receiving device in a communication system is provided. The method includes receiving a signal, and decoding the received signal based on a polar decoding scheme which is based on a successive cancellation (SC) scheme to estimate an information sequence, wherein, in the polar decoding scheme, a second number of parity bits among a first number of parity bits of an outer code included in an input bit sequence to a polar encoder are used in an error detection operation, and a third number of parity bits among the first number of parity bits are used in an error correction operation.

公开(公告)号：US20200350927A1

公开(公告)日：2020-11-05

申请号：US16855524

申请日：2020-04-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min JANG ,  Hyuntack LIM ,  Hongsil JEONG ,  Hayoung YANG ,  Joohyun LEE

IPC: H03M13/11 ,  H03M13/00

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system, such as long-term evolution (LTE). The disclosure provides decoding of a low-density parity-check (LDPC) code in a wireless communication system, and a decoding method of the LDPC code may include receiving a codeword, performing decoding iterations on the codeword a predefined maximum number of times using a parity check matrix, performing partial decoding using a partial area of the parity check matrix, and determining decoding success or failure of the codeword based a result of the partial decoding.