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    METHOD, DEVICE, AND SYSTEM FOR REPORTING CHANNEL QUALITY INDICATOR
    52.
    发明申请
    METHOD, DEVICE, AND SYSTEM FOR REPORTING CHANNEL QUALITY INDICATOR 有权
    报告渠道质量指标的方法，装置和系统

    公开(公告)号：US20140056272A1

    公开(公告)日：2014-02-27

    申请号：US14113216

    申请日：2012-10-26

    Applicant: China Academy of Telecommunications Technology

    Inventor： Qiubin Gao ,  Wenhong Chen ,  Hao Ni ,  Chun Luo ,  Hui Li ,  Shaohui Sun

    IPC: H04L5/00 ,  H04W24/02

    CPC classification number: H04L5/0035 ,  H04J11/0053 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0019 ,  H04L1/0026 ,  H04L1/0035 ,  H04L1/0077 ,  H04L1/20 ,  H04L5/0073 ,  H04L2001/0092 ,  H04W24/02 ,  H04W72/00 ,  H04W72/12

    Abstract: Disclosed are a method, device, and system for reporting a channel quality indicator (CQI), applicable in solving the problem in coordinated multipoint transmission technology of the incapability of a network side to execute accurately resource distribution and scheduling due to the incapability of the network side to have accurate knowledge of the interference that a terminal is being subjected to. The method is: on the basis of measurement reference signals transmitted by each device in a measurement collection, the terminal feeding back to a network side device an initial CQI of each device in the measurement collection; on the basis of the initial CQI of each device fed back by the terminal, and of channel matrix reference information fed back by the terminal, the network side device calculating a target CQI of the terminal. This allows the network side to learn accurately the interference that the terminal is being subjected to, thus allowing for accurate execution of terminal scheduling, resource distribution, and MCS selection, for effectively improved system throughput in coordinated multipoint transmission, and for improved system performance.

    Abstract translation: 公开了一种用于报告信道质量指示符（CQI）的方法，装置和系统，可用于解决由于网络不能正确地准确地执行资源分配和调度的网络侧无能力的协调多点传输技术中的问题 以准确了解终端受到的干扰。 该方法是：基于测量集合中的每个设备发送的测量参考信号，终端向网络侧设备反馈测量集合中每个设备的初始CQI; 基于由终端反馈的每个设备的初始CQI和由终端反馈的信道矩阵参考信息，网络侧设备计算终端的目标CQI。 这允许网络侧准确地了解终端所遭受的干扰，从而准确执行终端调度，资源分配和MCS选择，有效提高协同多点传输中的系统吞吐量，并提高系统性能。

    Positioning method and positioning device
    53.
    发明授权
    Positioning method and positioning device 有权

    公开(公告)号：US11353542B2

    公开(公告)日：2022-06-07

    申请号：US16962173

    申请日：2019-01-03

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Ren Da ,  Hui Li ,  Haiyang Quan ,  Qiubin Gao

    IPC: H04W64/00 ,  G01S5/10 ,  H04L5/00 ,  H04W24/10

    Abstract: A positioning method and related devices are provided. The method includes: measuring, by a UE, PRSs sent by a plurality of positioning reference devices to obtain a plurality of PRS measurement results; measuring, by the UE, SPRSs sent by the plurality of positioning reference devices to obtain a plurality of SPRS measurement results; performing, by the UE, a positioning operation based on the plurality of PRS measurement results and the plurality of SPRS measurement results, wherein the positioning operation includes: sending the plurality of PRS measurement results and the plurality of SPRS measurement results to a positioning server, so that the positioning server determines a position of the UE based on the plurality of PRS measurement results and the plurality of SPRS measurement results; or determining, by the UE, the position of the UE based on the plurality of PRS measurement results and the plurality of SPRS measurement results.

    Channel state information feedback method and device
    54.
    发明授权
    Channel state information feedback method and device 有权

    公开(公告)号：US11329708B2

    公开(公告)日：2022-05-10

    申请号：US16081878

    申请日：2017-02-21

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Hui Li ,  Qiubin Gao ,  Runhua Chen ,  Wenhong Chen ,  Rakesh Tamrakar

    IPC: H04B7/06 ,  H04B7/0456

    Abstract: A CSI feedback method and a CSI feedback device are provided. The CSI feedback method includes: determining a first precoding matrix in a set of first precoding matrices, and determining a first precoding matrix index value corresponding to the first precoding matrix; determining a second precoding matrix in a set of second precoding matrices, and determining a second precoding matrix index value corresponding to the second precoding matrix, the second precoding matrix including a beam selection section for selecting beams from the beam groups for each antenna group and a phase adjustment section for adjusting phases among the plurality of antenna groups; and feeding back the first precoding matrix index value and the second precoding matrix index value to an access device, so as to enable the access device to select corresponding precoding matrices from the set of first precoding matrices and the set of second precoding matrix in accordance with the first precoding matrix index value and the second precoding matrix index value, and implement calculation on the selected precoding matrices to obtain a precoding matrix for data transmission.

    Signal processing method and device
    55.
    发明授权
    Signal processing method and device 有权

    公开(公告)号：US11316634B2

    公开(公告)日：2022-04-26

    申请号：US16607433

    申请日：2018-03-28

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Rakesh Tamrakar ,  Qiubin Gao ,  Hui Li

    IPC: H04L5/00 ,  H04B7/06 ,  H04L1/00

    Abstract: Embodiments of the present disclosure provide a signal processing method and a signal processing device, which relate to the field of communication technology and used for the purpose of saving signaling resources. The signal processing method provided by embodiments of the present disclosure includes: transmitting a first indication message to a terminal device, wherein the first indication message is to trigger the terminal device to transmit feedback information on pilot signals; transmitting N downlink pilot signals to the terminal device, where N is an integer greater than or equal to 2, and the transmission manner of the N downlink pilot signals is semi-persistent transmission or aperiodic transmission, so that the terminal device, according to an acquired precoding manner of the downlink pilot signals and the first indication message, determines a feedback manner of the feedback information on the N downlink pilot signals and performs feedback, and wherein the feedback manner includes not feeding back or one-time feeding back of the feedback information on the N downlink pilot signals. In the embodiments of the present disclosure, the base station or the terminal device may not transmit feedback information on a plurality of pilot signals, or may one-time transmit feedback information on a plurality of pilot signals, thereby effectively saving signaling resources.

    Method, apparatus, and electronic device of determining beam reciprocity of a device
    57.
    发明授权
    Method, apparatus, and electronic device of determining beam reciprocity of a device 有权

    公开(公告)号：US11101860B2

    公开(公告)日：2021-08-24

    申请号：US16494989

    申请日：2018-03-08

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Qiubin Gao ,  Rakesh Tamrakar ,  Xin Su ,  Qiuping Huang ,  Hui Li

    IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0413

    Abstract: A method, an apparatus, and an electronic device of determining beam reciprocity of a device, and a computer readable storage medium are provided. The method includes: instructing a second device to transmit, by using a transmission beam obtained based on beam reciprocity, a reference signal; receiving the reference signal transmitted by the second device, and calculating a reception quality of the reference signal; receiving a plurality of beam training signals transmitted by the second device, and calculating reception qualities of the plurality of beam training signals, respectively; comparing the reception quality of the reference signal with a reference reception quality obtained based on the reception qualities of the plurality of beam training signals, and determining, based on a result of the comparison, whether the beam reciprocity of the second device is established or not.

    Beam scanning method and related device
    59.
    发明授权
    Beam scanning method and related device 有权

    公开(公告)号：US10892805B2

    公开(公告)日：2021-01-12

    申请号：US16338322

    申请日：2017-07-25

    Applicant: China Academy of Telecommunications Technology

    Inventor： Xin Su ,  Qiubin Gao ,  Runhua Chen ,  Tamrakar Rakesh ,  Chuanjun Li ,  Mengjun Wang ,  Hui Li ,  Qiuping Huang

    IPC: H04B7/0452 ,  H04B7/0408 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04

    Abstract: Disclosed are a beam scanning method and a related device, used for solving the problem that, during the existing process of determining the optimal transceiving beam by performing traversal search on a combination of potential transceiving beams, a large amount of system overhead needs to be occupied, thus reducing the system efficiency and the adaptability to a time-varying channel. The method comprises: a first communication node determines at least one transmitted beam according to the optimal receiving beam group between a receiver of the first communication node and a transmitter of a second communication node; the first communication node sequentially sends a signal to the second communication node by means of the transmitter according to the determined at least one transmitted beam until the optimal transmitted beam is determined.

    CSI feedback method, precoding method, and apparatus
    60.
    发明授权
    CSI feedback method, precoding method, and apparatus 有权

    公开(公告)号：US10742292B2

    公开(公告)日：2020-08-11

    申请号：US16084218

    申请日：2017-02-24

    Applicant: China Academy of Telecommunications Technology

    Inventor： Wenhong Chen ,  Qiubin Gao ,  Hui Li ,  Runhua Chen ,  Tamrakar Rakesh

    IPC: H04W4/00 ,  H04B7/06 ,  H04B7/0456 ,  H04W72/04

    Abstract: Disclosed are a channel state information (CSI) feedback method, a precoding method, and an apparatus. In the present invention, a terminal obtains, according to the number of downlink transport layers, a first precoding matrix set that is located on a first subband and that is corresponding to the number of the downlink transport layers, the first precoding matrix set comprising one or more precoding matrices, and a physical resource in the first subband being corresponding to a precoding matrix in the first precoding matrix set; the terminal determines a channel quality indicator (CQI) on a second subband according to downlink channel information and the first precoding matrix set on the first subband; and the terminal feeds back the CSI, the CSI comprising one or more of the following information: an RI used for indicating the number of the downlink transport layers, a PMI used for indicating the first precoding matrix set on the first subband and the CQI on the second subband. The technical solution disclosed in the resent invention can reduce signaling overheads of feeding back CSI by a terminal.

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