Sensor Calibration Method and Apparatus

    公开(公告)号:US20220214424A1

    公开(公告)日:2022-07-07

    申请号:US17704693

    申请日:2022-03-25

    Abstract: A sensor calibration method and apparatus are provided Location information of a target detected by the radar (110) is matched against map information to determine a calibration value of the radar (110), and then location information of a pixel of a target corresponding to the camera (120) in a global coordinate system is determined based on calibrated radar measurement data, so as to further determine a calibration value of the camera (120). In this way, for the roadside sensing system (200) that includes the single radar (110) and the single camera (120), manual field calibration is no longer required, which can effectively improve calibration efficiency of sensors in the roadside sensing system (200). This method improves an advanced driving assistance system ADAS capability of a terminal in automatic driving or assisted driving, and may be applied to a vehicle network, for example, V2X, LTE-V, and V2V.

    Communication method and apparatus

    公开(公告)号:US09992688B2

    公开(公告)日:2018-06-05

    申请号:US15047826

    申请日:2016-02-19

    Abstract: According to a communication method and a base station that are provided in embodiments of the present invention, the base station transmits a broad beam that covers a sector of the base station and narrow beams whose coverage areas completely fall within a coverage area of the broad beam, which implements that under a premise that a coverage area of the sector of the base station maintains unchanged by using the broad beam, enhanced coverage of the sector is further achieved by using the narrow beams, thereby improving spectral efficiency. In the solutions, a sector coverage area of the broad beam transmitted by the base station still maintains unchanged, and therefore, a coverage relationship between sectors is not affected. In addition, neither an additional site backhaul resource nor additional standardization support is required in the solutions.

    Communication Method and Apparatus
    3.
    发明申请
    Communication Method and Apparatus 有权
    通信方法与装置

    公开(公告)号:US20160165458A1

    公开(公告)日:2016-06-09

    申请号:US15047826

    申请日:2016-02-19

    Abstract: According to a communication method and a base station that are provided in embodiments of the present invention, the base station transmits a broad beam that covers a sector of the base station and narrow beams whose coverage areas completely fall within a coverage area of the broad beam, which implements that under a premise that a coverage area of the sector of the base station maintains unchanged by using the broad beam, enhanced coverage of the sector is further achieved by using the narrow beams, thereby improving spectral efficiency. In the solutions, a sector coverage area of the broad beam transmitted by the base station still maintains unchanged, and therefore, a coverage relationship between sectors is not affected. In addition, neither an additional site backhaul resource nor additional standardization support is required in the solutions.

    Abstract translation: 根据在本发明的实施例中提供的通信方法和基站,基站发送覆盖基站的扇区的宽波束,其覆盖区域完全落入宽波束的覆盖区域内的窄波束 ,其实现了通过使用宽波束来维持基站的扇区的覆盖区域保持不变的前提,通过使用窄波束进一步实现扇区的增强覆盖,从而提高频谱效率。 在解决方案中,由基站发射的宽波束的扇区覆盖区域仍然保持不变,因此扇区之间的覆盖关系不受影响。 此外,解决方案中不需要额外的站点回程资源,也不需要额外的标准化支持。

    Distributed Microwave Radar Imaging Method and Apparatus

    公开(公告)号:US20230152442A1

    公开(公告)日:2023-05-18

    申请号:US18147528

    申请日:2022-12-28

    CPC classification number: G01S13/9011 G01S7/354 G01S13/9021 G01S7/418

    Abstract: A distributed microwave radar imaging method includes obtaining a first echo signal received by a first microwave radar, where the first microwave radar is disposed at a first height; obtaining a second echo signal received by a second microwave radar, where the second microwave radar is disposed at a second height, and the first height is lower than the second height; determining a first radar imaging result image of a detected target based on the first echo signal; determining a second radar imaging result image of the detected target based on the second echo signal; fusing the first radar imaging result image and the second radar imaging result image to obtain a target fused image; and determining outline information of the detected target based on the target fused image.

    Electronic Nameplate Display Method and Apparatus in Video Conference

    公开(公告)号:US20210026517A1

    公开(公告)日:2021-01-28

    申请号:US16937065

    申请日:2020-07-23

    Abstract: An electronic nameplate display method includes obtaining a position of a face of a participant in a video image and identity information of the participant, determining a display position and a size of an electronic nameplate in the video image based on the position of the face in the video image, and displaying the identity information of the participant using the electronic nameplate. In this method, self-adaptive adjustment of the electronic nameplate is implemented based on the position of the face.

    Communication method and apparatus

    公开(公告)号:US10743195B2

    公开(公告)日:2020-08-11

    申请号:US15979844

    申请日:2018-05-15

    Abstract: According to a communication method and a base station that are provided in embodiments of the present invention, the base station transmits a broad beam that covers a sector of the base station and narrow beams whose coverage areas completely fall within a coverage area of the broad beam, which implements that under a premise that a coverage area of the sector of the base station maintains unchanged by using the broad beam, enhanced coverage of the sector is further achieved by using the narrow beams, thereby improving spectral efficiency. In the solutions, a sector coverage area of the broad beam transmitted by the base station still maintains unchanged, and therefore, a coverage relationship between sectors is not affected. In addition, neither an additional site backhaul resource nor additional standardization support is required in the solutions.

    Method for multi-user scheduling in MIMO system, and apparatus

    公开(公告)号:US10425957B2

    公开(公告)日:2019-09-24

    申请号:US15789427

    申请日:2017-10-20

    Inventor: Jing Yang Ni Ma

    Abstract: An apparatus and a method for multi-user scheduling in a MIMO system are disclosed. In an embodiment the method includes, receiving, by a base station, PMIs and CQIs of first codewords and second codewords, where the PMIs and the CQIs are fed back by N UEs; grouping UEs whose PMIs are the same into one pairing group to divide the N UEs into M pairing groups; and determining a user pairing combination of each pairing group according to a CQI of a first codeword of each UE in the pairing group and a CQI of a second codeword of each UE in the pairing group. The method further includes determining an optimal user pairing combination from M user pairing combinations. The base station schedules two UEs in the optimal user pairing combination simultaneously.

    Method for measuring downlink channel quality, transmit end, receive end, and system

    公开(公告)号:US10236962B2

    公开(公告)日:2019-03-19

    申请号:US16139238

    申请日:2018-09-24

    Abstract: A method includes: a transmit end transmits at least two mixed pilot signals to a receive end separately by using at least two physical antennas. The at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding weight matrix. The transmit sends a first codebook subset restriction instruction to the receive end. The first codebook subset restriction instruction carries a rank indication RANK and at least one precoding matrix index PMI. The transmit end receives a channel quality feedback message that is fed back by the receive end according to downlink channel quality of an equivalent channel of a specified antenna. Accordingly, a suitable serving antenna is selected for a receive end, thereby improving signal quality.

    Method for measuring downlink channel quality, transmit end, receive end, and system

    公开(公告)号:US10122433B2

    公开(公告)日:2018-11-06

    申请号:US15416544

    申请日:2017-01-26

    Abstract: The present disclosure disclose a method including: a transmit end transmits at least two mixed pilot signals to a receive end separately by using at least two physical antennas. The at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding weight matrix. The transmit sends a first codebook subset restriction instruction to the receive end. The first codebook subset restriction instruction carries a rank indication RANK and at least one precoding matrix index PMI. The transmit end receives a channel quality feedback message that is fed back by the receive end according to downlink channel quality of an equivalent channel of a specified antenna. According to the present invention, a suitable serving antenna is selected for a receive end, thereby improving signal quality.

    Communication Method and Apparatus
    10.
    发明申请

    公开(公告)号:US20180262919A1

    公开(公告)日:2018-09-13

    申请号:US15979844

    申请日:2018-05-15

    Abstract: According to a communication method and a base station that are provided in embodiments of the present invention, the base station transmits a broad beam that covers a sector of the base station and narrow beams whose coverage areas completely fall within a coverage area of the broad beam, which implements that under a premise that a coverage area of the sector of the base station maintains unchanged by using the broad beam, enhanced coverage of the sector is further achieved by using the narrow beams, thereby improving spectral efficiency. In the solutions, a sector coverage area of the broad beam transmitted by the base station still maintains unchanged, and therefore, a coverage relationship between sectors is not affected. In addition, neither an additional site backhaul resource nor additional standardization support is required in the solutions.

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