Beam information indication method and apparatus

    公开(公告)号:US12191976B2

    公开(公告)日:2025-01-07

    申请号:US18158298

    申请日:2023-01-23

    Abstract: This disclosure provides a beam information indication method and an apparatus. The terminal device obtains reference domain information of a plurality of beams and a first offset corresponding to each moment, to update beam domain information, where the first offset indicates an offset of domain information of the plurality of beams relative to the reference domain information of the plurality of beams. In technical solutions provided in this disclosure, domain information of the plurality of beams can be updated with low signaling overheads. The technical solutions may be applied to a satellite communication system, to implement interference management of satellite beams.

    Methods and apparatus for polar encoding

    公开(公告)号:US12149261B2

    公开(公告)日:2024-11-19

    申请号:US18317259

    申请日:2023-05-15

    Abstract: This application provides a polar encoding method and apparatus. The method can include obtaining a basic sequence, where the basic sequence includes N0 subchannel numbers. The method can also include sequentially reading first subchannel numbers from the basic sequence, and sequentially reading 2m second subchannel numbers from the basic sequence starting from an Mth subchannel number based on the first subchannel number read each time; and adding q*N0 to each of the 2m second subchannel numbers to obtain 2m third subchannel numbers. Furthermore, the method can include constructing a polar code by using subchannels corresponding to the 2m third subchannel numbers as information bits. A polar code with another code length is constructed based on a sequence with a length of N0. A length of a polar code that needs to be stored is therefore reduced, which reduces complexity and is also easy to implement.

    Communication method and apparatus
    183.
    发明授权

    公开(公告)号:US12143956B2

    公开(公告)日:2024-11-12

    申请号:US17825817

    申请日:2022-05-26

    Abstract: Example communication methods and apparatus are described. In one example method, a terminal receives a first information by using a serving beam, where the first information indicates a delay compensation parameter corresponding to a target beam. The target beam and the serving beam are different beams. The terminal determines, based on a full timing advance and the delay compensation parameter corresponding to the target beam, a differential timing advance corresponding to the target beam.

    Polarization encoding method and apparatus

    公开(公告)号:US12143125B2

    公开(公告)日:2024-11-12

    申请号:US18170763

    申请日:2023-02-17

    Abstract: An encoding method includes obtaining to-be-encoded information and a mother code length N. The to-be-encoded information includes K information bits. The method also includes determining, based on K and N, a set I corresponding to subchannels of the information bits and a set F corresponding to subchannels of frozen bits. Information bits corresponding to subchannel sequence numbers in the set I are distributed in X outer component codes, a code length of each outer component code is B, and the X outer component codes includes a first-type outer component code and a second-type outer component code or the X outer component codes include a first-type outer component code, a second-type outer component code, and one third-type outer component code. Different types of component codes have different code rates. The method additionally includes performing polarization encoding based on the set I and the set F.

    Encoding and decoding method and related apparatus

    公开(公告)号:US12143124B2

    公开(公告)日:2024-11-12

    申请号:US18366757

    申请日:2023-08-08

    Abstract: A sending device may obtain a first to-be-encoded vector. The sending device may perform first encoding on the first to-be-encoded vector, to obtain a second to-be-encoded vector. The sending device may encode the second to-be-encoded vector based on a first generator matrix, to obtain an encoded codeword. The first generator matrix may include at least N+1 submatrices a, and N of the submatrices a may be located on a main diagonal of the first generator matrix. The first generator matrix may be a block upper triangular matrix, or the first generator matrix may be a block lower triangular matrix. The submatrix a is a polar kernel matrix with a size of 2m*2m, m is a natural number, and N is a natural number. The sending device may send the encoded codeword.

    Encoding method and apparatus, decoding method and apparatus, and device

    公开(公告)号:US12136932B2

    公开(公告)日:2024-11-05

    申请号:US17969736

    申请日:2022-10-20

    Abstract: An encoding method and apparatus, a decoding method and apparatus, and a device are provided. The encoding method includes obtaining K to-be-encoded bits (S301), where K is a positive integer; determining a first generator matrix, where the first generator matrix includes at least two sub-blocks distributed based on a preset position relationship, and the sub-block includes a plurality of first generator matrix cores (S302); generating a second generator matrix based on the first generator matrix, where the second generator matrix includes T sub-blocks, and a position relationship between two adjacent sub-blocks of the T sub-blocks is determined based on the preset position relationship (S303), where T is a positive integer; and polar encoding the K to-be-encoded bits based on the second generator matrix (S304), to obtain encoded bits. This reduces encoding/decoding complexity.

    BEACON SENDING AND RECEIVING METHODS AND APPARATUS

    公开(公告)号:US20240323822A1

    公开(公告)日:2024-09-26

    申请号:US18732331

    申请日:2024-06-03

    CPC classification number: H04W48/16 H04L5/0048 H04L5/0098 H04W48/10

    Abstract: The present disclosure relates to the communication field and discloses beacon sending and receiving methods and corresponding apparatuses for reducing hardware overheads and weights of a network device such as a satellite or a high-altitude platform and a terminal device such as a ground station. A method is provided that includes determining one or more subcarriers that are in a first frequency band, the first frequency band being one of N frequency bands included in a first beacon resource of the first send node, N being an integer greater than or equal to 1. The first send node sends a beacon signal on the one or more subcarriers. Correspondingly, a first receive node receives the beacon signal on the one or more subcarriers. The first receive node parses the beacon signal.

    Decoding method and apparatus
    188.
    发明授权

    公开(公告)号:US12101102B2

    公开(公告)日:2024-09-24

    申请号:US18301724

    申请日:2023-04-17

    CPC classification number: H03M13/451

    Abstract: A decoding method includes: decoding first to-be-decoded information based on a first decoder to obtain a first decoding result that includes first soft information or a first hard output; and correcting the first decoding result based on a first correction model to obtain a corrected first decoding result of the first to-be-decoded information. The first correction model is obtained through training based on training data that includes a training decoding result and a corrected training decoding result. The training decoding result is a decoding result obtained after the first decoder decodes training to-be-decoded information, and the corrected training decoding result is a corrected decoding result corresponding to the training decoding result. In this way, after a decoder performs decoding, a decoding result can be corrected based on a correction model.

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