METHOD AND APPARATUS FOR TRANSCEIVING SIGNAL USING ARTIFICIAL INTELLIGENCE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210110261A1

    公开(公告)日:2021-04-15

    申请号:US17061439

    申请日:2020-10-01

    Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A method of transmitting or receiving a signal by a user equipment (UE) in a mobile communication system is provided. The method may include: identifying a neural network model for transmitting first information to a base station (BS); learning a connection weight of the neural network model using the first information; transmitting, to the base station, second information for updating a weight of a second partial neural network corresponding to the base station based on a result of the learning; and updating a weight of a first partial neural network corresponding to the UE based on the result of the learning.

    METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240073077A1

    公开(公告)日:2024-02-29

    申请号:US18267320

    申请日:2021-12-15

    CPC classification number: H04L27/262 H04L27/2627

    Abstract: Disclosed are a method and device for transmitting and receiving a signal in a wireless communication system. The method may comprise the following steps: transmitting, to a terminal, information of a plurality of demodulation reference signal (DMRS) sequences and information of a plurality of data transformation techniques, transforming a data symbol sequence on the basis of the plurality of data transformation techniques, performing an inverse discrete Fourier transformation (IDFT) on combinations of the plurality of transformed data symbol sequences and the plurality of DMRS sequences, measuring peak-to-average power ratio (PAPR) values with respect to each of the IDFT-performed signals, selecting an IDFT-performed signal having the lowest PAPR value as a result of the measurement, and the selected IDFT-performed signal may be transmitted to a terminal.

    METHOD AND APPARATUS FOR TRANSMITTING CONTROL SIGNAL IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230379913A1

    公开(公告)日:2023-11-23

    申请号:US18320140

    申请日:2023-05-18

    CPC classification number: H04W72/20

    Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate beyond a 4th generation (4G) communication system, such as long term evolution (LTE). The disclosure relates to a method performed by a base station in a wireless communication system, which may include: transmitting a radio resource control (RRC) message including reconfigurable intelligence surface (RIS) codebook configuration information to an RIS controller; determining a format of RIS control information based on the number of RIS codeword indexes; generating the RIS control information based on the determined format; and transmitting the generated RIS control information to the RIS controller.

    METHOD AND APPARATUS FOR OPERATING BEAM IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20250150119A1

    公开(公告)日:2025-05-08

    申请号:US18696123

    申请日:2022-09-29

    Abstract: Disclosed is a method of a base station that supports beamforming in a wireless communication system, the method comprising the steps of: transmitting, to an RC, control information for controlling a plurality of reflective patterns of an RIS; transmitting synchronizing signals corresponding to a plurality of beams of the base station via the RIS to a terminal positioned in a shadow region, wherein the synchronizing signals are sent for each of the plurality of reflective patterns controlled on the basis of the control information; receiving, from the terminal, measurement reports containing measurement results of the intensities of the synchronizing signals corresponding to the plurality of beams of the base station, wherein the measurement reports are received for each of the plurality of reflective patterns; selecting at least one of the plurality of beams and at least one of the plurality of reflective patterns as an optimal beam and an optimal reflective pattern for the shadow region on the basis of the measurement results contained in the measurement reports; and generating a code book for the RIS on the basis of the selected optimal reflective pattern for the shadow region.

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