Interference cancellation method, apparatus, and system

    公开(公告)号:US12267698B2

    公开(公告)日:2025-04-01

    申请号:US17825512

    申请日:2022-05-26

    Abstract: In an embodiment an interference cancellation method includes generating, by a first device, a first packet, wherein the first packet comprises a first group of elements, a second group of elements, and user data, the first group of elements being different from the second group of elements and sending, by the first device, the first packet to a second device by using at least one pair of subcarriers, wherein two subcarriers in the at least one pair of subcarriers are symmetrical with respect to a direct current subcarrier, and wherein the first packet is usable by the second device to cancel interference in the user data based on the first group of elements and the second group of elements.

    Sleeping and wake-up methods and apparatuses of master-slave network, and power saving system of master-slave network

    公开(公告)号:US10440648B2

    公开(公告)日:2019-10-08

    申请号:US15540708

    申请日:2014-12-31

    Abstract: Sleeping and wake-up methods and apparatuses of a master-slave network, and a power saving system of a master-slave network, are provided. The method includes: obtaining, from a link management list, running statuses of slave devices on links; determining a target device, where the target device is a slave device whose running status is idle; if running statuses of the target slave device to an end slave device on a link on which the target slave device is located are all idle, determining that a sublink from the target slave device to the end slave device on the link on which the target slave device is located is a target sublink; and sending a power saving message to at least one slave device on the target sublink, so that the slave device enters a sleep and listen state when receiving the power saving message.

    UPLINK MULTI-STATION CHANNEL ESTIMATION METHOD, STATION, AND ACCESS POINT

    公开(公告)号:US20220200822A1

    公开(公告)日:2022-06-23

    申请号:US17691480

    申请日:2022-03-10

    Abstract: This application provides an uplink multi-station channel estimation method, a station (STA), and an access point (AP), which can be applied to an uplink multi-user multiple-input multiple-output scenario. The uplink multi-station channel estimation method includes: a STA generating a frame including a first group of training sequences and a second group of training sequences, and sending the frame to the AP. The AP calculates a frequency offset value between the STA and the AP based on the received first group of training sequences and the received second group of training sequences. The AP performs channel estimation based on the calculated frequency offset value. According to the technical solutions provided in this application, the AP can more accurately learn of frequency offset values between a plurality of STAs and the AP. This improves channel estimation precision.

    Sleeping and wake-up methods and apparatuses of master-slave network, and power saving system of master-slave network

    公开(公告)号:US10952143B2

    公开(公告)日:2021-03-16

    申请号:US16564515

    申请日:2019-09-09

    Abstract: Example sleeping and wake-up methods and apparatuses of a master-slave network, and a power saving system of a master-slave network, are described. One example method includes obtaining running statuses of slave devices on links from a link management list. A target device is determined. The target device is a slave device whose running status is idle. If running statuses of the target slave device to an end slave device on a link on which the target slave device is located are all idle, it is determined that a sublink from the target slave device to the end slave device on the link on which the target slave device is located is a target sublink. A power saving message is sent to at least one slave device on the target sublink, so that the slave device enters a sleep and listen state when receiving the power saving message.

    Task scheduling method and apparatus on heterogeneous multi-core reconfigurable computing platform

    公开(公告)号:US10552222B2

    公开(公告)日:2020-02-04

    申请号:US15650608

    申请日:2017-07-14

    Abstract: Embodiments of the present invention provide a task scheduling method and apparatus on a heterogeneous multi-core reconfigurable computing platform. The method includes: when determining that a to-be-executed hardware task is in a ready state, adding the to-be-executed hardware task into a target hardware task queue corresponding to a function of the to-be-executed hardware task; reconfiguring, according to a priority of the to-be-executed hardware task and a usage status of multiple reconfigurable resource packages, at least one reconfigurable resource package in the multiple reconfigurable resource packages into a target intellectual property IP core that can execute the to-be-executed hardware task. According to the embodiments of the present invention, a more proper resource reconfiguration occasion can be determined, and a more appropriate reconfigurable resource package can be used for resource reconfiguration, thereby reducing reconfiguration overheads and improving utilization of reconfigurable resources in a task scheduling process.

    Data transmission method and apparatus

    公开(公告)号:US12120046B2

    公开(公告)日:2024-10-15

    申请号:US17504653

    申请日:2021-10-19

    Inventor: Bo Yang Peng Chen

    Abstract: This application provides a data transmission method and apparatus. The method includes: A first access point detects a channel. If the first access point detects an idle first channel, the first access point sends a first trigger frame to at least one second access point, where the first trigger frame is used to trigger the at least one second access point to send data on the first channel after a first preset time period elapses. In this way, an existing CSMA channel detection mechanism may be compatible with the method, and a conflict caused by contention of a plurality of APs for a channel at the same time can be avoided, which helps improve network transmission efficiency, and helps improve transmission performance.

    Uplink multi-station channel estimation method, station, and access point

    公开(公告)号:US11902054B2

    公开(公告)日:2024-02-13

    申请号:US17691480

    申请日:2022-03-10

    CPC classification number: H04L25/0204 H04L25/0242

    Abstract: This application provides an uplink multi-station channel estimation method, a station (STA), and an access point (AP), which can be applied to an uplink multi-user multiple-input multiple-output scenario. The uplink multi-station channel estimation method includes: a STA generating a frame including a first group of training sequences and a second group of training sequences, and sending the frame to the AP. The AP calculates a frequency offset value between the STA and the AP based on the received first group of training sequences and the received second group of training sequences. The AP performs channel estimation based on the calculated frequency offset value. According to the technical solutions provided in this application, the AP can more accurately learn of frequency offset values between a plurality of STAs and the AP. This improves channel estimation precision.

    CHANNEL SOUNDING METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20230090009A1

    公开(公告)日:2023-03-23

    申请号:US17993331

    申请日:2022-11-23

    Abstract: This application discloses a channel sounding method and a communication apparatus. The method includes: A first access point receives a channel transfer command frame from a controller or a central access point, and sends a channel transfer frame to a second access point. The channel transfer command frame indicates the first access point to send a channel sounding result of at least one station to the second access point. The channel transfer command frame includes a first sounding dialog token number. The channel transfer frame carries a channel sounding result corresponding to a first sounding dialog token in channel sounding results of a plurality of stations. The first access point forwards the channel sounding result of the at least one station to the second access point.

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