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    Data processing method, apparatus, and system
    3.
    发明授权
    Data processing method, apparatus, and system 有权

    公开(公告)号：US11245562B2

    公开(公告)日：2022-02-08

    申请号：US16368618

    申请日：2019-03-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xin Zeng ,  Zongjie Wang ,  Yuanzhou Hu

    IPC: H04L27/26 ,  H04L27/36 ,  H04L27/34 ,  H04L27/20

    Abstract: This application relates to the field of wireless communications technologies, and in particular, to a data processing method, apparatus, and system. This application provides a data processing method. A data sending device modulates a to-be-transmitted bit sequence, splits a real part and an imaginary part of a complex-valued symbol that is obtained through the modulation into two symbols to form a symbol sequence, performs phase rotation of symbols in the symbol sequence, and performs sending by using a single carrier frequency division multiple access (SC-FDMA) symbol. This application is intended to reduce a peak-to-average power ratio (PAPR) of a transmit signal of an orthogonal frequency division multiplexing (OFDM) system by splitting a real part and an imaginary part of a to-be-transmitted signal, and improve link quality of an entire transmission system.

    Communications method and apparatus
    6.
    发明授权
    Communications method and apparatus 有权

    公开(公告)号：US10985868B2

    公开(公告)日：2021-04-20

    申请号：US16562389

    申请日：2019-09-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen Zheng ,  Liang Ma ,  Yuejun Wei ,  Xin Zeng

    IPC: H04L1/00 ,  H04L1/18

    Abstract: Embodiments of this application provide a communications method and apparatus. The method includes: obtaining an input sequence for rate matching, wherein the input sequence is a retransmission sequence corresponding to a transport block, the input sequence comprises M code block groups, a value of M is less than a quantity of code block groups obtained after the transport block is segmented, and the M code block groups comprise Ct code blocks; and performing rate matching on the Ct code blocks, wherein a length of a rate matching output sequence of of each of the Ct code blocks satisfies the following conditions: when j≤Ct−γ−1, E=NL·Qm·└G′/Ct┘; when j>Ct−γ−1, E=NL·Qm·┌G′/Ct┐. The method may be applicable to a system in which transmission is performed based on a code block group, and resources are fully used as many as possible, thereby improving performance.

    Data processing method and data processing apparatus
    7.
    发明授权
    Data processing method and data processing apparatus 有权

    公开(公告)号：US10693609B2

    公开(公告)日：2020-06-23

    申请号：US16231946

    申请日：2018-12-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Liang Ma ,  Chen Zheng ,  Xin Zeng ,  Yuejun Wei

    IPC: G06F15/16 ,  H04L5/00 ,  H04L1/18

    Abstract: Embodiments of this application relate to communication technologies and provide a method for transmitting or retransmitting data in a transport block. The transport block includes one or more code block groups, and each code block group includes one or more code blocks. A data processing device determines a code block group in the transport block that needs to be transmitted. Each code block in the code block group is processed by the data processing device to obtain a bit sequence. The data processing device transmits one or more bit sequences obtained by processing one or more code blocks in the code block group. The method and the apparatus provided in this application help reduce waste of air interface resources.

    Inter-Cell Handover Method and Apparatus
    8.
    发明申请
    Inter-Cell Handover Method and Apparatus 审中-公开

    公开(公告)号：US20200162988A1

    公开(公告)日：2020-05-21

    申请号：US16749815

    申请日：2020-01-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xin Zeng

    IPC: H04W36/26 ,  H04W36/08 ,  H04W76/27 ,  H04W36/00

    Abstract: Obtaining, by a source cell, a key retention policy of a terminal device, where the source cell and the terminal device use a first key to communicate with each other; determining, by the source cell according to the key retention policy of the terminal device and a key retention policy of the source cell, whether the terminal device and a target cell use the first key to communicate with each other; and sending, by the source cell, a handover request message to the target cell, where the handover request message is used to request to hand over the terminal device from the source cell to the target cell, the handover request message includes first indication information, and the first indication information is used to indicate whether the terminal device and the target cell use the first key to communicate with each other.

    INFORMATION PROCESSING METHOD AND APPARATUS, AND DEVICE
    9.
    发明申请
    INFORMATION PROCESSING METHOD AND APPARATUS, AND DEVICE 审中-公开

    公开(公告)号：US20200021310A1

    公开(公告)日：2020-01-16

    申请号：US16580398

    申请日：2019-09-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Chen Zheng ,  Xiaojian Liu ,  Yuejun Wei ,  Xin Zeng

    IPC: H03M13/15 ,  H03M13/11

    Abstract: Embodiments of the present invention disclose an information processing method and apparatus, and a device. The method includes: if Rreal is greater than or equal to Rmin, determining, based on a maximum code block length Kmax of an LDPC (low-density parity-check code) code, a quantity C of code blocks into which a transport block is to be segmented, where Rreal is a largest one among an encoding code rate of the transport block, a code rate limit of the transport block, and a minimum code rate of the LDPC code, and Rmin is a minimum code rate corresponding to the maximum code block length of the LDPC code, or a larger one between a minimum code rate corresponding to the maximum code block length of the LDPC code and a code rate limit of the maximum code block length of the LDPC code.

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