Method and Apparatus for Transmitting Random Access Signal

    公开(公告)号:US20230043012A1

    公开(公告)日:2023-02-09

    申请号:US17957905

    申请日:2022-09-30

    Inventor: Huang Huang Mao Yan

    Abstract: A method and an apparatus for transmitting a random access signal. The method includes receiving configuration information, wherein the configuration information indicates a random access preamble length, a random access signal subcarrier spacing, and a data subcarrier spacing, determining a subcarrier quantity parameter k based on at least one of the random access preamble length, the random access signal subcarrier spacing, or the data subcarrier spacing, generating a random access signal based on the subcarrier quantity parameter k, and sending the random access signal.

    Synchronization Signal Block Determining Method And Related Apparatus

    公开(公告)号:US20230007656A1

    公开(公告)日:2023-01-05

    申请号:US17931303

    申请日:2022-09-12

    Abstract: Embodiments of this application disclose a synchronization signal block determining method and a related apparatus. The method includes: A terminal device detects a first synchronization signal block (SSB); the terminal device determines a second SSB based on the first SSB, where a frequency domain position of the first SSB and a frequency domain position of the second SSB are within a preset bandwidth, or a difference between frequency domain positions of the first SSB and the second SSB is a preset value. The second SSB may be considered as a backup SSB for the first SSB.

    System Information Redundancy Version Determining Method and Apparatus

    公开(公告)号:US20220416979A1

    公开(公告)日:2022-12-29

    申请号:US17895843

    申请日:2022-08-25

    Abstract: This application provides a system information redundancy version determining method and apparatus. A communications device determines at least one time-domain resource unit Ux, and determines a redundancy version RVx for system information on the time-domain resource unit Ux according to the time-domain resource unit Ux, where x is an identifier of the time-domain resource unit, the redundancy version RVx satisfies RVx=(Int1(X1/X2*(Int2(x/M) mod K))) mod L, x is a non-negative integer, X1 and X2 are non-zero real numbers, M is a positive real number, K and L are positive integers, mod indicates a modulo operation, Int1 indicates rounding up or rounding down, and Int2 indicates rounding up or rounding down.

    Random access method and apparatus
    34.
    发明授权

    公开(公告)号:US11503646B2

    公开(公告)日:2022-11-15

    申请号:US16829928

    申请日:2020-03-25

    Abstract: This application provides a random access method and apparatus. The method includes: receiving, by a terminal, first indication information transmitted by a network device, where the first indication information is used to indicate a random access configuration index; determining, by the terminal, a random access resource based on the random access configuration index; determining, based on an association relationship between the random access resource and a downlink signal, a random access resource corresponding to the downlink signal; and transmitting a random access preamble to the network device based on the random access resource corresponding to the downlink signal.

    Downlink data transmission method and device

    公开(公告)号:US11503614B2

    公开(公告)日:2022-11-15

    申请号:US16022309

    申请日:2018-06-28

    Abstract: The present disclosure provides a downlink data transmission method, including: using a time-division multiplexing transmission mode in one transmission time interval; sending, by using a wide beam, a control signal to a user served in the current transmission time interval; and grouping users and sending data signals to different user groups by using different narrow beams. In one transmission time interval, time-division multiplexing is used, and a wide beam and a narrow beam are respectively used to transmit a control signal and a data signal. This can avoid a throughput bottleneck resulting from use of a transmission scheme that is based on frequency-division multiplexing only.

    Signal transmission method and apparatus

    公开(公告)号:US11310766B2

    公开(公告)日:2022-04-19

    申请号:US16988300

    申请日:2020-08-07

    Abstract: This disclosure describes signal transmission methods and apparatus. On example method includes: receiving, by a terminal device, a paging indication sent by a network device, where the paging indication carries information about a plurality of paging groups; and sending, by the terminal device to the network device based on an association relationship between a paged paging group in the plurality of paging groups and a random access preamble, a random access preamble associated with a paging group in which the terminal device is located.

    Signal transmission method and apparatus

    公开(公告)号:US10979354B2

    公开(公告)日:2021-04-13

    申请号:US16232942

    申请日:2018-12-26

    Abstract: A signal transmission method and apparatus are provided. The method includes: obtaining, by a transmitter, a to-be-sent data block; inserting one or more pilot blocks among a plurality of pieces of data of the to-be-sent data block based on an agreed position; and sending, by the transmitter, the to-be-sent data block into which the one or more pilot blocks are inserted. Inserting the one or more pilot blocks among the plurality of pieces of data of the to-be-sent data block can improve a phase noise compensation effect for a receiver without increasing pilot overheads.

    Communications method and apparatus for determining a random access association period

    公开(公告)号:US10750460B2

    公开(公告)日:2020-08-18

    申请号:US16662816

    申请日:2019-10-24

    Abstract: This application discloses a communications method and apparatus. The method includes: obtaining, by a terminal device, downlink synchronization signal block index information; receiving, by the terminal device, information used to indicate an association relationship between a random access resource RO and a synchronization signal block; and accessing, by the terminal device, a network device based on the information on an RO corresponding to the synchronization signal block index information. This application further discloses a corresponding apparatus. A time-frequency location of a random access resource associated with each downlink synchronization signal is indicated, so that the terminal device obtains, through downlink synchronization, a time-frequency location for sending an uplink random access signal, to avoid a blind attempt of the terminal device and a beam mismatch of the network device occurring when the network device receives a random access signal, thereby improving efficiency.

    RANDOM ACCESS METHOD AND APPARATUS
    39.
    发明申请

    公开(公告)号:US20200229244A1

    公开(公告)日:2020-07-16

    申请号:US16829928

    申请日:2020-03-25

    Abstract: This application provides a random access method and apparatus. The method includes: receiving, by a terminal, first indication information transmitted by a network device, where the first indication information is used to indicate a random access configuration index; determining, by the terminal, a random access resource based on the random access configuration index; determining, based on an association relationship between the random access resource and a downlink signal, a random access resource corresponding to the downlink signal; and transmitting a random access preamble to the network device based on the random access resource corresponding to the downlink signal.

    BACKSCATTER COMMUNICATION METHOD, EXCITATION DEVICE, BACKSCATTER DEVICE, AND RECEIVING DEVICE

    公开(公告)号:US20250070815A1

    公开(公告)日:2025-02-27

    申请号:US18941859

    申请日:2024-11-08

    Abstract: Embodiments of this application disclose a backscatter communication method and a related apparatus. The method includes: receiving, by a backscatter device, a first signal from an excitation device, the first signal carries a first sequence determined by the excitation device; modulating, by the backscatter device, backscatter device data to the first signal to obtain a second signal, wherein the backscatter device data is scrambled by the first sequence; backscattering, by the backscatter device, the second signal to a receiving device.

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