METHOD AND APPARATUS FOR DATA DECODING IN COMMUNICATION OR BROADCASTING SYSTEM

    公开(公告)号:US20210075442A1

    公开(公告)日:2021-03-11

    申请号:US17016915

    申请日:2020-09-10

    Abstract: The disclosure relates to a communication technique for converging a 5G communication system for supporting a higher data transfer rate beyond a 4G system with an IoT technology, and a system therefor. The disclosure may be applied to intelligent services (for example, smart home, smart buildings, smart cities, smart cars or connected cars, health care, digital educations, retail business, security and safety-related services, etc.) based on a 5G communication technology and an IoT-related technology. The disclosure provides an apparatus and a method for efficiently decoding a low-density parity-check (LDPC) code in a communication or broadcasting system. Further, the disclosure provides an LDPC decoding device and method for improving decoding performance without increasing the decoding complexity by applying suitable decoding scheduling according to the structural or algebraic characteristics of the LDPC code in a process of decoding the LDPC code using layered scheduling or a scheme similar thereto. Further, a method of a low density parity check (LDPC) decoding performed by a receiving device in a wireless communication system is provided, the method comprising: receiving, from a transmitting device, a signal corresponding to input bits; performing demodulation based on the signal to determine values corresponding to the input bits; identifying a number of the input bits based on the signal; identifying a base matrix and a lifting size based on the number of the input bits; identifying a parity check matrix based on the base matrix; identifying an index corresponding to the values; determining a number of layers based on the index and the lifting size; determining an order for LDPC decoding based on the number of layers and a predetermined sequence; and performing LDPC decoding to determine the input bits based on the values, the parity check matrix and the order.

    SEQUENCE GENERATION METHOD FOR POLAR CODE, STORAGE MEDIUM THEREOF, AND DATA TRANSMISSION METHOD AND APPARATUS USING SAME

    公开(公告)号:US20200177309A1

    公开(公告)日:2020-06-04

    申请号:US16623353

    申请日:2018-06-15

    Abstract: The disclosure relates to a communication technique which fuses a 5G communication system with IoT technology to support higher data transmission rates after a 4G system, and system thereof. The disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart connected car, health care, digital education, retail, security, and safety related services, and the like) on the basis of 5G communication technology and IoT related technology. According to an embodiment of the present specification, an information transmission method comprises: a step of identifying at least one bit for polar coding; a step of identifying a first sequence which corresponds to a length of the at least one bit and has a length of 2N; a step of encoding the information bit through the polar coding on the basis of the first sequence; and a step of transmitting the encoded information, wherein the first sequence is arranged as an index in which at least a portion of the sequences are symmetrical to each other about the center of the first sequence.

    METHOD AND APPARATUS FOR DESIGN OF PUNCTURED POLAR CODES

    公开(公告)号:US20200036397A1

    公开(公告)日:2020-01-30

    申请号:US16453097

    申请日:2019-06-26

    Abstract: A communication scheme and system for converging a 5th generation (5G) communication system for supporting a data rate higher than that of a 4th generation (4G) system with an internet of things (IoT) technology are provided. The present disclosure is applicable to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, and security and safety-related services) based on the 5G communication technology and the IoT-related technology. The disclosure relates to a punctured polar code design method and apparatus and proposes optimal puncturing pattern and information set selection criteria for designing punctured polar codes.

    OPTICAL SENSORS INCLUDING A LIGHT-IMPEDING PATTERN

    公开(公告)号:US20180301494A1

    公开(公告)日:2018-10-18

    申请号:US15954818

    申请日:2018-04-17

    Abstract: Optical sensors including a light-impeding pattern are provided. The optical sensors may include a plurality of photoelectric conversion regions, a plurality of lenses on the plurality of photoelectric conversion regions, and a light-impeding layer extending between the plurality of photoelectric conversion regions and the plurality of lenses. The light-impeding layer may include an opening between a first one of the plurality of photoelectric conversion regions and a first one of the plurality of lenses. The optical sensors may be configured to be assembled with a display panel such that the plurality of lenses are disposed between the light-impeding layer and the display panel.

    METHOD FOR APPLICATION SECURITY AND ELECTRONIC DEVICE FOR PERFORMING THE SAME

    公开(公告)号:US20230161872A1

    公开(公告)日:2023-05-25

    申请号:US17957260

    申请日:2022-09-30

    Inventor: Min JANG Yuna HWANG

    CPC classification number: G06F21/54 G06F2221/034

    Abstract: A method for application security and an electronic device for performing the method are provided. The electronic device includes a memory configured to store computer-executable instructions and at least one processor configured to execute the instructions by accessing the memory, wherein the at least one processor is configured to, in response to the instructions being executed by the at least one processor, record a source type of an application based on the source type of the application when installing the application on the electronic device, determine whether the application corresponds to an untrusted application based on the source type of the application, and in response to the application corresponding to an untrusted application, perform one or more of security functions set for the untrusted application.

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