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。

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。

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。

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。

公开(公告)号：US20140126383A1

公开(公告)日：2014-05-08

申请号：US14129259

申请日：2012-05-11

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： H04W24/02 ,  H04W88/02 ,  H04W24/10

CPC分类号： H04W24/02 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/066 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/003 ,  H04L1/0031 ,  H04W24/10 ,  H04W88/02

摘要： Provided is reporting one or more long term CSI components to an eNode B, wherein at least one long term CSI component being reported with multiple values; and reporting a transmission scheme assumption indicator (TSAI) together with a set of short term CSI components to the eNode B, wherein the TSAI indicating the eNode B of a value of the multiple values of the at least one long term CSI component to be currently used and of the set of short term CSI components being conditioned on the value indicated by the TSAI, wherein the short term CSI components being reported more frequently.

摘要翻译： 向eNode B报告一个或多个长期CSI组件，其中至少一个长期CSI组件被报告为多个值; 并向eNode B报告传输方案假设指示符（TSAI）以及一组短期CSI分量，其中指示eNode B的TSAI是至少一个长期CSI分量的多个值的值当前 使用的和一组短期CSI组件以TSAI指示的值为条件，其中短期CSI组件被更频繁地报告。

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。

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。

公开(公告)号：US09712299B2

公开(公告)日：2017-07-18

申请号：US14368767

申请日：2012-01-19

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

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

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04J13/00 ,  H04J13/18 ,  H04L25/03 ,  H04L27/26 ,  H04B7/024 ,  H04B7/06

CPC分类号： H04L5/0048 ,  H04B7/024 ,  H04B7/0684 ,  H04J13/0003 ,  H04J13/004 ,  H04J13/18 ,  H04J2211/005 ,  H04L5/0025 ,  H04L25/03866 ,  H04L27/2613

摘要： A Method of scrambling reference signals, device and user equipment using the method are provided. In the method, a plurality of layers of reference signals assigned on predetermined radio resource of a plurality of layers of resource blocks with the same time and frequency resources are scrambled, the method comprising: an orthogonalizing step of multiplying each layer of reference signal selectively by one of a plurality of orthogonal cover codes (OCCs) with the same length wherein the OCC multiplied to a first layer of reference signal can be configured as different from those multiplied to other layers of reference signals; and a scrambling step of multiplying all of symbols obtained from the OCC multiplied to each of the other layers of reference signals by a symbol-common scrambling sequence wherein the symbol-common scrambling sequences can be different from each other for reference signals multiplied by the same OCC.

公开(公告)号：US09161324B2

公开(公告)日：2015-10-13

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 ,  H04L27/00 ,  H04L27/34 ,  H04W24/10

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。

公开(公告)号：US08934563B2

公开(公告)日：2015-01-13

申请号：US13582848

申请日：2011-02-21

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： H04B7/02 ,  H04L1/02 ,  H04B7/04 ,  H04B7/10 ,  H04B7/06

CPC分类号： H04B7/0636 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/10

摘要： There is provided a method and device for feeding back a pre-coding matrix index of a dual-polarized antenna which has a first antenna array and a second antenna array and is arranged at a base station to which the index of a first pre-coding matrix for the first antenna array, the index of a second pre-coding matrix for the second antenna array and the phase offset between the first pre-coding matrix and the second pre-coding matrix are fed back from a terminal, comprising: computing a distance between the first pre-coding matrix and the second pre-coding matrix; judging whether the distance is larger than a predetermined threshold or not; and assigning less bits to indicate the phase offset if the distance is larger than the predetermined threshold. The method and device according to the present disclosure can effectively advance the feedback accuracy of a system thus improving the bit error rate and throughput of the system.

摘要翻译： 提供了一种用于反馈具有第一天线阵列和第二天线阵列的双极化天线的预编码矩阵索引的方法和装置，并且被布置在基站，第一预编码的索引 用于第一天线阵列的矩阵，用于第二天线阵列的第二预编码矩阵的索引和第一预编码矩阵与第二预编码矩阵之间的相位偏移从终端反馈，包括：计算 第一预编码矩阵和第二预编码矩阵之间的距离; 判断距离是否大于预定阈值; 并且如果距离大于预定阈值，则分配较少的比特来指示相位偏移。 根据本公开的方法和装置可以有效地提高系统的反馈精度，从而提高系统的误码率和吞吐量。