OFDM-BASED METHOD AND DEVICE FOR SPREADING AND TRANSMITTING COMPRESSED DATA

    公开(公告)号:US20230353435A1

    公开(公告)日:2023-11-02

    申请号:US17998625

    申请日:2021-05-13

    CPC classification number: H04L27/2626 H03M7/3066

    Abstract: The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. A method for a transmitter of a communication system according to the present disclosure is characterized by: transmitting configuration information for signal transmission to a receiver, checking resources for the signal transmission; transmitting scheduling information indicating the resources to the receiver; converting a transmission signal to a compressed signal so as to correspond to the configuration information; spreading the compressed signal to multiple dimensions; mapping a portion of the spread compressed signal to the resources corresponding to the scheduling information; converting the spread compressed signal to generate an orthogonal frequency-division multiplexing (OFDM) signal; and transmitting the generated OFDM signal to the receiver.

    METHOD AND DEVICE FOR ESTIMATING TIME AND FREQUENCY OFFSETS IN COMMUNICATION SYSTEM

    公开(公告)号:US20230319891A1

    公开(公告)日:2023-10-05

    申请号:US17998923

    申请日:2021-05-14

    CPC classification number: H04W74/0833 H04B7/01 H04W72/23 H04W84/06

    Abstract: The present disclosure relates to: a communication technique merging IoT technology with a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security- and safety-related services, and the like), emergency communication services (emergency rescue signal transmission services), and the like on the basis of 5G communication technology, IoT-related technology and satellite communication. Proposed in the present disclosure is a method for performing a correlation operation on the basis of a reception signal and a PRACH preamble, and estimating a frequency offset on the basis of a first peak value and/or a second peak value in accordance with the correlation operation result.

    METHOD AND APPARATUS FOR INSTRUCTIONS REGARDING TIME AND FREQUENCY OFFSET IN COMMUNICATION SYSTEM

    公开(公告)号:US20230180164A1

    公开(公告)日:2023-06-08

    申请号:US17920945

    申请日:2021-04-29

    CPC classification number: H04W56/0045 H04B7/18513

    Abstract: The present disclosure relates to a communication technology for combining, with IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and to a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety related services, on the basis of 5G communication technologies and IoT-related technologies. The present invention may provide a method and apparatus by which a base station provides instructions on time and frequency offset information to a UE so as to correct the time and frequency by a value offset from the provided time and frequency offset information.

    METHOD AND DEVICE FOR TRANSMITTING DATA IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220393927A1

    公开(公告)日:2022-12-08

    申请号:US17775734

    申请日:2020-11-02

    Abstract: Provided are a method and apparatus for transmitting data in a wireless communication system. The method, performed by a transmission apparatus, of transmitting data includes performing π/2-binary phase shift keying (BPSK) modulation on M symbols, performing a discrete Fourier transform (DFT) on the M symbols on which the π/2-BPSK modulation has been performed, performing an inverse fast Fourier transform (IFFT) on M/2 symbols among the M symbols on which the DFT has been performed, and transmitting, to a reception apparatus, the M/2 symbols on which the IFFT has been performed, wherein a constellation of the M symbols on which the π/2-BPSK modulation has been performed may have only real components or imaginary components.

    METHOD AND APPARATUS FOR REPORTING UPLINK POWER HEADROOM IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220322245A1

    公开(公告)日:2022-10-06

    申请号:US17656413

    申请日:2022-03-24

    Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to an embodiment of the disclosure, a method performed by a terminal in a communication system includes determining whether a power headroom reporting (PHR) is triggered; identifying at least one of a first power headroom (PH) value for a first physical uplink shared channel (PUSCH) corresponding to a first resource index or a second PH value for a second PUSCH corresponding to a second resource index based on a determination that the PHR is triggered; identifying a PHR medium access control control element (MAC CE) related to at least one of the first PH value or the second PH value; and transmitting the PHR MAC CE via at least one of the first PUSCH or the second PUSCH.

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