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    Apparatus and method for reducing interferences between base stations in wireless communication system
    1.
    发明授权
    Apparatus and method for reducing interferences between base stations in wireless communication system 有权
    用于减少无线通信系统中基站干扰的装置和方法

    公开(公告)号：US08768261B2

    公开(公告)日：2014-07-01

    申请号：US13257692

    申请日：2010-03-19

    申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    IPC分类号： H04B1/00 ,  H04B17/00 ,  H04B1/10

    CPC分类号： H04W52/243 ,  H04W24/10 ,  H04W52/143 ,  H04W88/08

    摘要： A method for reducing interferences between base stations in a communication system having a plurality of base stations. This method comprises the steps of: causing a user station to receive both a signal transmitted by a local-cell base station and a signal transmitted by an adjacent-cell base station, thereby measuring the SNR of the interfered link and the SNR of the leak link of the adjacent-cell base station; calculating a weighting factor of a leak power based on the measured SNR of the interfered link and the measured SNR of the leak link of the adjacent-cell base station; and determining, based on the calculated weighting factor, whether or not the leak power has to be suppressed and to what degree such suppression has to be performed.

    摘要翻译： 一种用于减少具有多个基站的通信系统中的基站之间的干扰的方法。 该方法包括以下步骤：使用户站接收由本地小区基站发送的信号和由相邻小区基站发送的信号，从而测量被干扰链路的SNR和泄漏的SNR 相邻小区基站的链路; 基于受干扰链路的测量SNR和相邻小区基站的泄漏链路的测量SNR来计算泄漏功率的加权因子; 以及基于所计算的加权因子来确定是否必须抑制泄漏功率以及必须在多大程度上执行这种抑制。

    METHOD OF FEEDING BACK MU-CQI IN A COMMUNICATION SYSTEM, TRANSMISSION POINT DEVICE, AND USER EQUIPMENT
    2.
    发明申请
    METHOD OF FEEDING BACK MU-CQI IN A COMMUNICATION SYSTEM, TRANSMISSION POINT DEVICE, AND USER EQUIPMENT 有权
    在通信系统，传输点设备和用户设备中提供后向MU-CQI的方法

    公开(公告)号：US20130308488A1

    公开(公告)日：2013-11-21

    申请号：US13981589

    申请日：2011-03-31

    申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    IPC分类号： H04W24/10

    CPC分类号： H04W24/10 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/0031 ,  H04W52/0238 ,  Y02D70/1262 ,  Y02D70/444

    摘要： There are provided a method, user equipment, and transmission point device for feeding back channel quality indicator (MU-CQI) to the transmission point in a communication system including the transmission point and a plurality of user equipments, the method comprising steps: the transmission point sending a message to an intended user equipment of the plurality of user equipments; and the intended user equipment calculating the MU-CQI based on the message, and feeding back the MU-CQI to the transmission point. The present disclosure enables dynamic MU operation, and improves link adaptation performance with marginal downlink overhead. And the accuracy is not limited by codebook size.

    摘要翻译： 提供了一种在包括传输点和多个用户设备的通信系统中向传输点反馈信道质量指示符（MU-CQI）的方法，用户设备和传输点设备，所述方法包括步骤： 向所述多个用户设备的预定用户设备发送消息; 以及基于该消息来计算MU-CQI的目标用户设备，并将MU-CQI反馈到传输点。 本公开使得能够进行动态MU操作，并且利用边际下行链路开销改善链路适配性能。 并且准确性不受码本大小的限制。

    APPARATUS AND METHOD FOR REDUCING INTERFERENCES BETWEEN BASE STATIONS IN WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    APPARATUS AND METHOD FOR REDUCING INTERFERENCES BETWEEN BASE STATIONS IN WIRELESS COMMUNICATION SYSTEM 有权
    降低无线通信系统基站间干扰的装置及方法

    公开(公告)号：US20120040701A1

    公开(公告)日：2012-02-16

    申请号：US13257692

    申请日：2010-03-19

    申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    IPC分类号： H04W24/02

    CPC分类号： H04W52/243 ,  H04W24/10 ,  H04W52/143 ,  H04W88/08

    摘要： A method for reducing interferences between base stations in a communication system having a plurality of base stations. This method comprises the steps of: causing a user station to receive both a signal transmitted by a local-cell base station and a signal transmitted by an adjacent-cell base station, thereby measuring the SNR of the interfered link and the SNR of the leak link of the adjacent-cell base station; calculating a weighting factor of a leak power based on the measured SNR of the interfered link and the measured SNR of the leak link of the adjacent-cell base station; and determining, based on the calculated weighting factor, whether or not the leak power has to be suppressed and to what degree such suppression has to be performed.

    摘要翻译： 一种用于减少具有多个基站的通信系统中的基站之间的干扰的方法。 该方法包括以下步骤：使用户站接收由本地小区基站发送的信号和由相邻小区基站发送的信号，从而测量被干扰链路的SNR和泄漏的SNR 相邻小区基站的链路; 基于受干扰链路的测量SNR和相邻小区基站的泄漏链路的测量SNR来计算泄漏功率的加权因子; 以及基于所计算的加权因子来确定是否必须抑制泄漏功率以及必须在多大程度上执行这种抑制。

    METHOD FOR DETERMINING CHANNEL QUALITY INDICATOR, BASE STATION AND USER EQUIPMENT THEREFOR
    5.
    发明申请
    METHOD FOR DETERMINING CHANNEL QUALITY INDICATOR, BASE STATION AND USER EQUIPMENT THEREFOR 有权
    确定通道质量指标，基站及其用户设备的方法

    公开(公告)号：US20140064234A1

    公开(公告)日：2014-03-06

    申请号：US14114883

    申请日：2011-09-29

    申请人： Hui Tong ,  Masayuki Hoshino ,  Daichi Imamura ,  Ming Xu

    发明人： Hui Tong ,  Masayuki Hoshino ,  Daichi Imamura ,  Ming Xu

    IPC分类号： H04W72/04

    CPC分类号： H04W72/0413 ,  H04B7/024 ,  H04B7/0632 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0035 ,  H04L5/0075 ,  H04L25/0208 ,  H04W16/32 ,  H04W28/08

    摘要： A method for determining Channel Quality Indicators to be reported by User Equipments in base station cooperation, and a base station and a User Equipment therefore are provided. The method comprising: assigning a sequence of adjustment factors to various possible base station cooperations; transmitting the assigned adjustment factors to UEs; calculating an original CQI for each possible base station cooperation in each UE; adjusting the original CQIs based on the received adjustment factors in UEs; and reporting one or multiple original CQI(s) that are the highest after the aforesaid adjustment and knowledge of which CQI(s) are reported to the base station by each UE.

    摘要翻译： 因此，提供了一种用于基站协作中由用户设备报告的信道质量指示符的方法，以及基站和用户设备。 该方法包括：将调整因子序列分配给各种可能的基站协作; 将所分配的调整因子发送给UE; 在每个UE中为每个可能的基站协作计算原始CQI; 基于UE中接收到的调整因子来调整原始CQI; 并且报告在上述调整之后最高的一个或多个原始CQI，以及每个UE向基站报告哪些CQI的知识。

    Method and device for superimposing reference signal and data based on space division multiple access
    6.
    发明授权
    Method and device for superimposing reference signal and data based on space division multiple access 有权
    基于空分多址的叠加参考信号和数据的方法和装置

    公开(公告)号：US08797993B2

    公开(公告)日：2014-08-05

    申请号：US13378124

    申请日：2010-04-12

    申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Seigo Nakao ,  Daichi Imamura

    发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Seigo Nakao ,  Daichi Imamura

    IPC分类号： H04W4/00 ,  H04B7/04

    CPC分类号： H04B7/046 ,  H04B7/0408 ,  H04B7/0413

    摘要： The present invention provides a method of superimposing data signals and reference signals in a space division multiple access communication system, a base station of the communication system transmitting the first layer resource block and another layer resource block to a terminal using the same time/frequency resources, reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other, the method including superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block, making a spreading sequence of the superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block. The present invention can effectively use resources consumed under a multiuser MIMO system and drastically improve the system performance.

    摘要翻译： 本发明提供了一种在空分多址通信系统中叠加数据信号和参考信号的方法，该通信系统的基站使用相同的时间/频率资源向终端发送第一层资源块和另一层资源块 所述第一层资源块中的参考信号和所述另一层资源块中的参考信号彼此正交，所述方法包括将在所述第一层资源块中发送的数据信号叠加在所述第一层资源块中的参考信号的位置， 与第一层资源块中的参考信号的扩展序列正交的叠加数据信号的扩展序列。 本发明可以有效地利用在多用户MIMO系统下消耗的资源，并且显着提高系统性能。

    METHOD OF REPORTING PHASE OFFSETS, USER EQUIPMENT AND TRANSMISSION POINT DEVICE USING THE METHOD
    8.
    发明申请
    METHOD OF REPORTING PHASE OFFSETS, USER EQUIPMENT AND TRANSMISSION POINT DEVICE USING THE METHOD 有权
    使用该方法报告相位偏移的方法，用户设备和传输点设备

    公开(公告)号：US20140119362A1

    公开(公告)日：2014-05-01

    申请号：US14123271

    申请日：2011-06-30

    申请人： Hui Tong ,  Masayuki Hoshino ,  Akihiko Nishio ,  Ming Xu ,  Daichi Imamura

    发明人： Hui Tong ,  Masayuki Hoshino ,  Akihiko Nishio ,  Ming Xu ,  Daichi Imamura

    IPC分类号： H04W56/00

    CPC分类号： H04W56/0035 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/3472 ,  H04W24/10

    摘要： A transmission point device, user equipment, and method of reporting phase offsets between signals received from a serving cell and neighbor cells in a communication system are disclosed. The method comprises steps of: quantizing the phase offsets using a predetermined number of bits; utilizing another bit to indicate constellation of the phase offsets; reporting the quantized phase offsets and the constellation to transmission point. The present disclosure may improve the signal combining gain from multiple transmission points with minimum overhead increasing.

    摘要翻译： 公开了一种在通信系统中从服务小区接收的信号和相邻小区之间报告相位偏移的传输点设备，用户设备和方法。 该方法包括以下步骤：使用预定数量的比特量化相位偏移; 利用另一位来指示相位偏移的星座; 将量化相位偏移和星座报告给传输点。 本公开可以以最小的开销增加来改善来自多个传输点的信号组合增益。

    METHOD AND SYSTEM FOR SETTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    9.
    发明申请
    METHOD AND SYSTEM FOR SETTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中设置参考信号的方法和系统

    公开(公告)号：US20120115521A1

    公开(公告)日：2012-05-10

    申请号：US13266441

    申请日：2010-04-09

    申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

    IPC分类号： H04B15/00 ,  H04W4/00

    CPC分类号： H04L5/0048 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0057 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/0473 ,  H04W72/082 ,  H04W72/085 ,  Y02D70/1262 ,  Y02D70/146

    摘要： A method and a system of setting up a reference signal in a radio communication system. The radio communication system includes a serving cell and a neighboring cell, and a mobile terminal of the serving cell uses the same temporal frequency resource so as to receive a serving resource block from the serving cell and receive an interference resource block from the neighboring cell. The method according to the present disclosure includes a step of setting up a user-specific reference signal in the interference resource block and a step in which puncturing is performed at same temporal frequency position as the temporal frequency position at which the user-specific reference signal is set up on the interference resource block of the serving resource block so as to prevent any signal from being transmitted at the punctured temporal frequency position. When the method and the system provided in the present disclosure are used and the interference power between cells is thereby measured, it is possible to effectively reduce feedback overhead in a coordinated beamforming.

    摘要翻译： 一种在无线电通信系统中建立参考信号的方法和系统。 无线电通信系统包括服务小区和相邻小区，并且服务小区的移动终端使用相同的时间频率资源，从服务小区接收服务资源块，并从邻近小区接收干扰资源块。 根据本公开的方法包括在干扰资源块中建立用户特定参考信号的步骤，以及在与用户特定参考信号的时间频率位置相同的时间频率位置执行删截的步骤 设置在服务资源块的干扰资源块上，以防止在穿孔的时间频率位置发送任何信号。 当使用本公开中提供的方法和系统并且由此测量小区之间的干扰功率时，可以有效地减少协调波束成形中的反馈开销。