DATA STREAM MULTIPLEXING METHOD AND TERMINAL

    公开(公告)号:US20210288855A1

    公开(公告)日:2021-09-16

    申请号:US17333852

    申请日:2021-05-28

    Abstract: The method may include: determining a third frequency-domain data stream, which includes a first frequency-domain data stream and a second frequency-domain data stream, a length of the third frequency-domain data stream is 2N, lengths of both the first frequency-domain data stream and the second frequency-domain data stream are N, data in the first frequency-domain data stream and data in the second frequency-domain data stream are separately mapped to different locations in the third frequency-domain data stream, the first frequency-domain data stream is obtained by performing zero adding processing and Fourier transform processing on a first source data stream, the second frequency-domain data stream is obtained by performing cyclic extension processing on a second source data stream; converting the third frequency-domain data stream into time-domain data and sending the time-domain data to a base station.

    Generating reference signal(s) using Zadoff-Chu sequence(s)

    公开(公告)号:US11095408B2

    公开(公告)日:2021-08-17

    申请号:US16460201

    申请日:2019-07-02

    Abstract: Disclosed is a reference signal transmission method and a device. The method includes converting, by a sending device, a frequency domain reference signal from frequency domain to time domain, to generate a time domain reference signal. The frequency domain reference signal includes a reference signal sequence mapped to a frequency domain resource. The reference signal sequence is determined based on a Zadoff-Chu (ZC) sequence, and a length value of the ZC sequence is selected from at least two length values. The method includes sending, by the sending device, the time domain reference signal. According to the reference signal transmission method, one ZC sequence is selected from at least two ZC sequences with different lengths to generate the reference signal sequence, so that the generated reference signal sequence is characterized by a low PAPR and an low RCM, and is used to generate a reference signal, to improve data transmission performance.

    Data sending method and apparatus

    公开(公告)号:US11025467B2

    公开(公告)日:2021-06-01

    申请号:US16914643

    申请日:2020-06-29

    Abstract: A data sending apparatus includes a processor and a transceiver. The processor is configured to generate K first frequency-domain data streams, wherein a kth first frequency-domain data stream of the K first frequency-domain data streams is determined by performing preprocessing on a kth first modulated data stream, and the preprocessing includes at least a Fourier transform, a cyclic extension, or a phase rotation. The processor is further configured to map the K first frequency-domain data streams to frequency-domain resources to generate a time-domain symbol, and the transceiver is configured to send the time-domain symbol. A length of the kth first frequency-domain data stream of the K first frequency-domain data streams is Nk, and a length of the kth first modulated data stream is Mk. K is a positive integer greater than 1, Nk and Mk are positive integers, and k is an integer k=0, 1, . . . , K−1.

    Data transmission method, apparatus, and related device

    公开(公告)号:US12170992B2

    公开(公告)日:2024-12-17

    申请号:US17720539

    申请日:2022-04-14

    Abstract: A data transmission method and apparatus, and a related device, and may be used in the internet of vehicles, for example, V2X, LTE-V, or V2V, or may be used in fields such as D2D, intelligent driving, and intelligent connected vehicle. A network device may send first downlink control information to a first terminal device and a second terminal device, to indicate the first terminal device and the second terminal device to perform user cooperative transmission in a first stage. After the transmission in the first stage is completed, the network device sends second downlink control information to the first terminal device and the second terminal device, to indicate the first terminal device and the second terminal device to perform user cooperative transmission in a second stage. The network device uses a two-level scheduling manner to improve transmission efficiency in the second stage.

    Method and apparatus for performing multi-hop transmission in a shared resource pool

    公开(公告)号:US12166665B2

    公开(公告)日:2024-12-10

    申请号:US17852701

    申请日:2022-06-29

    Abstract: This application discloses a multi-hop transmission method and an apparatus, which are applicable to fields such as V2X, internet of vehicles, intelligent connected vehicles, assisted driving, and intelligent driving, to resolve a problem that a multi-hop transmission latency is large in a conventional technology. In example embodiments, terminal devices participating in multi-hop transmission may share a shared resource pool. A first terminal device and a second terminal device participating in the multi-hop transmission are used as an example. The multi-hop transmission method includes: sending, by the first terminal device, data to the second terminal device on a first resource in the shared resource pool; and if the first terminal device fails to send the data on the first resource, retransmitting, by the first terminal device, the data to the second terminal device on a second resource in the shared resource pool.

    Data stream multiplexing method and terminal

    公开(公告)号:US12063135B2

    公开(公告)日:2024-08-13

    申请号:US17333852

    申请日:2021-05-28

    CPC classification number: H04L27/2621 H04L5/0007 H04L5/0048 H04L27/2607

    Abstract: The method may include: determining a third frequency-domain data stream, which includes a first frequency-domain data stream and a second frequency-domain data stream, a length of the third frequency-domain data stream is 2N, lengths of both the first frequency-domain data stream and the second frequency-domain data stream are N, data in the first frequency-domain data stream and data in the second frequency-domain data stream are separately mapped to different locations in the third frequency-domain data stream, the first frequency-domain data stream is obtained by performing zero adding processing and Fourier transform processing on a first source data stream, the second frequency-domain data stream is obtained by performing cyclic extension processing on a second source data stream; converting the third frequency-domain data stream into time-domain data and sending the time-domain data to a base station.

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