Sequence-based signal processing method and signal processing apparatus

    公开(公告)号:US11606238B2

    公开(公告)日:2023-03-14

    申请号:US17484833

    申请日:2021-09-24

    Abstract: This application provides a sequence-based signal processing method and apparatus. A sequence used for sending a signal on a PUSCH is determined. The sequence is a sequence {xn} including N elements, xn is an element in the sequence {xn}, and the determined sequence {xn} is a sequence satisfying a preset condition. Then, a first signal is generated and sent. By using the determined sequence, when a signal is sent on the PUSCH, relatively good sequence frequency domain flatness can be maintained, and a relatively low PAPR value and a relatively low cross-correlation between sequences can be maintained, thereby satisfying a communications application environment in which a signal is sent on the PUSCH, especially an NR system scenario or an NR similar scenario.

    Sequence generating and processing method and apparatus

    公开(公告)号:US12237959B2

    公开(公告)日:2025-02-25

    申请号:US18538375

    申请日:2023-12-13

    Abstract: This application discloses a sequence generating method and apparatus, and relates to the field of communications technologies, to resolve a problem that a PAPR of a DMRS symbol is higher than that of a data symbol. An initialization factor of a first sequence is obtained, where the initialization factor is associated with a first parameter, and the first sequence is generated based on the initialization factor. In addition, the first parameter is a port number, or the first parameter is a code division multiplexing CDM group identity.

    Signal processing method and apparatus

    公开(公告)号:US11909571B2

    公开(公告)日:2024-02-20

    申请号:US17696444

    申请日:2022-03-16

    CPC classification number: H04L27/261 H04L5/0048 H04L27/20 H04L27/26025

    Abstract: The present disclosure relates to signal processing methods and apparatus. One example method includes determining a first sequence {x(n)} based on a preset condition, generating a reference signal of a first signal by using the first sequence, and sending the reference signal on a first frequency-domain resource. The preset condition is






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    a length of the first sequence is K=6, n=0, 1, . . . , K−1, A is a non-zero complex number, and j=√{square root over (−1)}. The first signal is a signal modulated by using π/2 binary phase shift keying (BPSK). The first frequency-domain resource comprises K subcarriers each having a subcarrier number of k, k=u+L*n+delta, L is an integer greater than or equal to 2, delta∈{0, 1, . . . , L−1}, u is an integer, and subcarrier numbers of the K subcarriers are numbered in ascending or descending order of frequencies.

    Reference Signal Transmission Method and Apparatus

    公开(公告)号:US20230029215A1

    公开(公告)日:2023-01-26

    申请号:US17936619

    申请日:2022-09-29

    Abstract: This application provides a reference signal transmission method. The method includes: A transmit end determines a time-frequency resource occupied by a reference signal, where the time-frequency resource includes M symbols in time domain and N subcarriers corresponding to each of the M symbols in frequency domain, M is an integer greater than or equal to 2, and N is an integer greater than 1; the transmit end generates a reference signal sequence with a length of M×N, and maps the reference signal sequence to the time-frequency resource for sending; and accordingly, a receive end receives the reference signal on the time-frequency resource.

    Signal sending method, signal receiving method, and device

    公开(公告)号:US11956178B2

    公开(公告)日:2024-04-09

    申请号:US17380097

    申请日:2021-07-20

    CPC classification number: H04L5/0094 H04J13/0062 H04L25/0226 H04L27/26025

    Abstract: A signal sending method, a signal receiving method, and a device for signal transmission or receiving are provided. A part that is of a first signal and that is carried on a kth subcarrier in an ith subcarrier group in N subcarrier groups is xi,nid(k), and a sequence {si,nid(k)} related to xi,nid(k) is one of enumerated sequences. The enumerated sequences are sequences with relatively good cross-correlation. Therefore, for two subcarrier groups, provided that selected {si,nid(k)} is two of the enumerated sequences, cross-correlation between signals carried in the two subcarrier groups can be ensured to be relatively good, thereby reducing interference between the signals and improving channel estimation performance.

    COMMUNICATION METHOD AND APPARATUS
    19.
    发明公开

    公开(公告)号:US20240048310A1

    公开(公告)日:2024-02-08

    申请号:US18352903

    申请日:2023-07-14

    CPC classification number: H04L5/0048 H04L5/0012 H04L5/0094

    Abstract: A communication method and apparatus are provided. The method includes: A terminal device receives first information, and sends an SRS based on the first information. The first information indicates an SRS frequency domain resource. The SRS frequency domain resource includes a first frequency domain unit and a second frequency domain unit. The first frequency domain unit is different from the second frequency domain unit. The first frequency domain unit is a frequency domain resource occupied by the SRS on a first frequency hopping subband in a first frequency hopping period. The second frequency domain unit is a frequency domain resource occupied by the SRS on the first frequency hopping subband in a second frequency hopping period. The first frequency hopping subband is one of a plurality of frequency hopping subbands.

    Sequence determining method and apparatus

    公开(公告)号:US11863486B2

    公开(公告)日:2024-01-02

    申请号:US18183742

    申请日:2023-03-14

    CPC classification number: H04L5/0048 H04J11/005 H04J13/10 H04L5/0007 H04W72/21

    Abstract: Embodiments of the present disclosure provide, among other implementations, sequence determining methods. One example method provides a sequence group, and one sequence group number is corresponding to at least two sequences, where one sequence is used for mapping to consecutive subcarriers, and at least one other sequence is used for mapping to equally-spaced subcarriers. In some embodiments of the present disclosure, as high as possible cross-correlation between a sending signal obtained after equally-spaced mapping is performed on a sequence in a sequence group can be determined, and a sending signal obtained after continuous mapping is performed on another sequence in the group.

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