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    METHOD, DEVICE, AND SYSTEM FOR REPORTING CHANNEL QUALITY INDICATOR
    33.
    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。

    Methods and apparatuses for transmitting coding indication information and determining precoding matrix
    35.
    发明授权
    Methods and apparatuses for transmitting coding indication information and determining precoding matrix 有权

    公开(公告)号：US10567049B2

    公开(公告)日：2020-02-18

    申请号：US15755090

    申请日：2016-07-19

    Applicant: China Academy of Telecommunications Technology

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

    IPC: H04B7/0456 ,  H03M1/26 ,  H04L25/03 ,  H04B7/06

    Abstract: Methods and apparatuses for transmitting coding indication information and determining a precoding matrix, for use in resolving the problem that the resolution of code words in a codebook generated by using a combination of a beam vector subgroup and column selection cannot be flexibly adjusted. The method comprises: determining first precoding indication information and second precoding indication information, the first precoding indication information corresponding to a first-stage precoding matrix, the second precoding indication information corresponding to a direction weighting vector and a phase adjustment factor, the direction weighting vector being used for performing interpolation processing on parts representing angles corresponding to beam vectors in the all beam vectors in each polarization direction in the first-stage precoding matrix, the phase adjusting factor being used for performing phase adjustment on different polarization directions of the first-stage precoding matrix, and the first-stage precoding matrix, the direction weighting vector, and the phase adjustment factor being used for generating a precoding matrix. The resolution of a precoding matrix is flexibly adjusted by using a direction weighting vector.

    D2D signal transmission method and device
    37.
    发明授权
    D2D signal transmission method and device 有权

    公开(公告)号：US10028125B2

    公开(公告)日：2018-07-17

    申请号：US15111344

    申请日：2015-01-14

    Applicant: China Academy of Telecommunications Technology

    Inventor： Wenhong Chen ,  Qiubin Gao ,  Ying Peng ,  Rui Zhao

    IPC: H04W8/00 ,  H04W72/04 ,  H04W72/02 ,  H04L5/00 ,  H04W48/10

    Abstract: Disclosed in the present application is a D2D signal transmission method and device, used for enabling a UE, on the basis of the D2D parameters thereof, to determine a resource hopping pattern between different D2D transmission physical resources, and thereby obtain a plurality of D2D transmission physical resources, such that a D2D UE transmitting a D2D signal at any time in the same sub-frame can subsequently transmit a D2D signal in a different sub-frame, thus improving the overall D2D transmission performance of the system. The method provided in the present application comprises: a first UE, on the basis of pre-set D2D parameters, determines the resource hopping pattern between a plurality of D2D transmission physical resources needed to be used by the first UE; the first UE, on the basis of said resource hopping pattern, determines the plurality of D2D transmission physical resources; and the first UE sends a D2D signal on the determined plurality of D2D transmission physical resources.

    D2D switchover method, system, and device
    39.
    发明授权
    D2D switchover method, system, and device 有权

    公开(公告)号：US09826567B2

    公开(公告)日：2017-11-21

    申请号：US14773383

    申请日：2014-03-17

    Applicant: China Academy of Telecommunications Technology

    Inventor： Ying Peng ,  Qiubin Gao ,  Wenhong Chen ,  Rui Zhao

    IPC: H04W72/04 ,  H04W76/04 ,  H04W36/00 ,  H04W24/02 ,  H04W24/10 ,  H04W36/26 ,  H04W84/12 ,  H04W88/06

    CPC classification number: H04W76/043 ,  H04W24/02 ,  H04W24/10 ,  H04W36/00 ,  H04W36/26 ,  H04W76/23 ,  H04W84/12 ,  H04W88/06

    Abstract: Embodiments of the present application relate to the technical field of wireless communication, in particular a D2D switchover method, system, and device, for solving the problem in prior art of the lack of mechanism for D2D switchover for D2D user devices under appropriate conditions so as to ensure the short-distance transmission quality in the situation where an LTE system has too high a load and interference is too strong. Embodiments of the present invention comprise: a network device determines, according to resource management information and/or channel status information whether a D2D user device needs to perform a D2D switchover; when the D2D user device is determined to need to perform a D2D switchover, the D2D user device is triggered to switch to a heterogeneous system and conduct end-to-end communication, or to conduct end-to-end communication via the network device, or to conduct in the current system end-to-end communication not controlled by the network device. The method in the embodiments of the present invention ensures that D2D devices can perform D2D switchover under appropriate conditions even when an LED system has too high a load and interference is too strong, thereby enhancing the end-to-end communication performance.

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