公开(公告)号：US20100303170A1

公开(公告)日：2010-12-02

申请号：US12599491

申请日：2007-05-10

申请人： Xiaolong Zhu ,  Hongwei Yang ,  Liyu Cai

发明人： Xiaolong Zhu ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04L25/03 ,  H04L27/00 ,  H04L25/49

CPC分类号： H04B7/0417 ,  H04B7/0617 ,  H04B7/0689

摘要： A method for pre-processing data to be transmitted in a multiple-input communication system comprises the following steps: generating a beamforming matrix and a pre-coding matrix; combining the beamforming matrix and the pre-coding matrix to generate a weight matrix; and pre-processing the data by using the generated weight matrix. There are also provided a transmitter, a base station, and a communication system using the method.

摘要翻译： 一种用于预处理在多输入通信系统中发送的数据的方法包括以下步骤：产生波束成形矩阵和预编码矩阵; 组合波束形成矩阵和预编码矩阵以生成权重矩阵; 并通过使用生成的权重矩阵来预处理数据。 还提供了一种发射机，基站和使用该方法的通信系统。

公开(公告)号：US20110028156A1

公开(公告)日：2011-02-03

申请号：US12936696

申请日：2009-03-13

申请人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

发明人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

IPC分类号： H04W72/04

CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065

摘要： A method and device for controlling the serving BS and at least one coordinating BS for coordinating downlink data communication with the MS in a wireless telecommunication network based on CO-MIMO technology. The method comprises obtaining the MIMO downlink channel information between the serving BS and the MS and between the coordinating BS and the MS, determining the downlink signal precoding information between the serving BS and the MS and between the coordinating BS and the MS according to the channel information, and performing MIMO downlink data communication coordinately with the MS based on the downlink signal precoding information.

摘要翻译： 一种用于在基于CO-MIMO技术的无线电信网络中控制服务BS和至少一个协调BS以协调与MS的下行链路数据通信的方法和设备。 该方法包括：获取服务BS与MS之间以及协调BS与MS之间的MIMO下行链路信道信息，根据信道确定服务BS与MS之间以及协调BS与MS之间的下行链路信号预编码信息 信息，并且基于下行链路信号预编码信息与MS协调地执行MIMO下行链路数据通信。

公开(公告)号：US08611905B2

公开(公告)日：2013-12-17

申请号：US12936696

申请日：2009-03-13

申请人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

发明人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

IPC分类号： H04W36/00

CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065

摘要： A method and device for controlling the serving BS and at least one coordinating BS for coordinating downlink data communication with the MS in a wireless telecommunication network based on CO-MIMO technology. The method comprises obtaining the MIMO downlink channel information between the serving BS and the MS and between the coordinating BS and the MS, determining the downlink signal precoding information between the serving BS and the MS and between the coordinating BS and the MS according to the channel information, and performing MIMO downlink data communication coordinately with the MS based on the downlink signal precoding information.

摘要翻译： 一种用于在基于CO-MIMO技术的无线电信网络中控制服务BS和至少一个协调BS以协调与MS的下行链路数据通信的方法和设备。 该方法包括：获取服务BS与MS之间以及协调BS与MS之间的MIMO下行链路信道信息，根据信道确定服务BS与MS之间以及协调BS与MS之间的下行链路信号预编码信息 信息，并且基于下行链路信号预编码信息与MS协调地执行MIMO下行链路数据通信。

公开(公告)号：US08325842B2

公开(公告)日：2012-12-04

申请号：US12599491

申请日：2007-05-10

申请人： Xiaolong Zhu ,  Hongwei Yang ,  Liyu Cai

发明人： Xiaolong Zhu ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04B7/02

CPC分类号： H04B7/0417 ,  H04B7/0617 ,  H04B7/0689

摘要： A method for pre-processing data to be transmitted in a multiple-input communication system comprises the following steps: generating a beamforming matrix and a pre-coding matrix; combining the beamforming matrix and the pre-coding matrix to generate a weight matrix; and pre-processing the data by using the generated weight matrix. There are also provided a transmitter, a base station, and a communication system using the method.

摘要翻译： 一种用于预处理在多输入通信系统中发送的数据的方法包括以下步骤：产生波束成形矩阵和预编码矩阵; 组合波束形成矩阵和预编码矩阵以生成权重矩阵; 并通过使用生成的权重矩阵来预处理数据。 还提供了一种发射机，基站和使用该方法的通信系统。

公开(公告)号：US07822142B2

公开(公告)日：2010-10-26

申请号：US11616984

申请日：2006-12-28

申请人： Hongwei Yang ,  Xiaolong Zhu

发明人： Hongwei Yang ,  Xiaolong Zhu

IPC分类号： H04L1/02 ,  H04L27/00

CPC分类号： H04B7/0697 ,  H04B1/7103 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0871

摘要： The present invention provides a transmitter having multiple transmitting antennas, comprising: SM/STC apparatus for performing spatial multiplexing or space-time coding diversity on data and for causing resulting signals to be transmitted parallel by multiple transmitting antennas; and a controller for controlling the SM/STC apparatus to operate in SM mode or STC diversity mode in accordance with a signal indicating the operating area which a receiver is located in. The present invention further a corresponding receiver, a base station device and user equipment each comprising the transmitter and receiver of the present invention, and a corresponding method of interference cancellation. The present invention can obtain both diversity gain and interference cancellation gain by performing interference cancellation at the receiver side when interference from other transmitters dominates in the channel. Therefore, the present invention can improve the system capacity and coverage without increasing the base station complexity or decreasing the spectrum usage efficiency at the cell edge.

摘要翻译： 本发明提供一种具有多个发射天线的发射机，包括：SM / STC装置，用于对数据进行空间多路复用或时空编码分集，并使得由多个发射天线并行发射得到的信号; 以及控制器，用于根据指示接收机所在的操作区域的信号，控制SM / STC设备以SM模式或STC分集模式操作。本发明还涉及一种对应的接收机，基站设备和用户设备 每个都包括本发明的发射机和接收机，以及相应的干扰消除方法。 本发明可以通过在其他发射机的干扰在信道中占优势的同时，在接收机侧进行干扰消除来获得分集增益和干扰消除增益。 因此，本发明可以在不增加基站复杂度或降低小区边缘的频谱使用效率的情况下提高系统容量和覆盖。

公开(公告)号：US20070153935A1

公开(公告)日：2007-07-05

申请号：US11616984

申请日：2006-12-28

申请人： Hongwei YANG ,  Xiaolong Zhu

发明人： Hongwei YANG ,  Xiaolong Zhu

IPC分类号： H04L1/02 ,  H04L27/00

CPC分类号： H04B7/0697 ,  H04B1/7103 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0871

摘要： The present invention provides a transmitter having multiple transmitting antennas, comprising: SM/STC apparatus for performing spatial multiplexing or space-time coding diversity on data and for causing resulting signals to be transmitted parallel by multiple transmitting antennas; and a controller for controlling the SM/STC apparatus to operate in SM mode or STC diversity mode in accordance with a signal indicating the operating area which a receiver is located in. The present invention further a corresponding receiver, a base station device and user equipment each comprising the transmitter and receiver of the present invention, and a corresponding method of interference cancellation. The present invention can obtain both diversity gain and interference cancellation gain by performing interference cancellation at the receiver side when interference from other transmitters dominates in the channel. Therefore, the present invention can improve the system capacity and coverage without increasing the base station complexity or decreasing the spectrum usage efficiency at the cell edge.

摘要翻译： 本发明提供一种具有多个发射天线的发射机，包括：SM / STC装置，用于对数据进行空间多路复用或时空编码分集，并使得由多个发射天线并行发射得到的信号; 以及控制器，用于根据指示接收机所在的操作区域的信号，控制SM / STC设备以SM模式或STC分集模式操作。本发明还涉及一种对应的接收机，基站设备和用户设备 每个都包括本发明的发射机和接收机，以及相应的干扰消除方法。 本发明可以通过在其他发射机的干扰在信道中占优势的同时，在接收机侧进行干扰消除来获得分集增益和干扰消除增益。 因此，本发明可以在不增加基站复杂度或降低小区边缘的频谱使用效率的情况下提高系统容量和覆盖。

公开(公告)号：US20100309999A1

公开(公告)日：2010-12-09

申请号：US12863222

申请日：2008-01-17

申请人： Hongwei Yang ,  Xiaolong Zhu

发明人： Hongwei Yang ,  Xiaolong Zhu

IPC分类号： H04K1/10

CPC分类号： H04B7/0671

摘要： A method of carrying out cyclic delay mapping, wherein, the CDD-like transmitter generate multiple branches of signals c0orresponding to the multiple transmitting antennas with varying cyclic delay mapping rules, so as to make the cyclic delay parameter, corresponding to at least one of the multiple transmitting antennas, vary as time goes by, in order to prevent the system performance from degrading as time goes by.

摘要翻译： 一种执行循环延迟映射的方法，其中，CDD类发射机产生具有变化的循环延迟映射规则的对应于多个发射天线的信号c0的多个分支，以便产生与所述循环延迟映射中的至少一个对应的循环延迟参数 多个发射天线随着时间的推移而变化，以防止随着时间流逝而降低系统性能。

公开(公告)号：US08599950B2

公开(公告)日：2013-12-03

申请号：US12863222

申请日：2008-01-17

申请人： Hongwei Yang ,  Xiaolong Zhu

发明人： Hongwei Yang ,  Xiaolong Zhu

IPC分类号： H04B7/02

CPC分类号： H04B7/0671

摘要： A method of carrying out cyclic delay mapping, wherein, the CDD-like transmitter generate multiple branches of signals corresponding to the multiple transmitting antennas with varying cyclic delay mapping rules, so as to make the cyclic delay parameter, corresponding to at least one of the multiple transmitting antennas, vary as time goes by, in order to prevent the system performance from degrading as time goes by.

摘要翻译： 一种执行循环延迟映射的方法，其中，CDD类发射机利用变化的循环延迟映射规则生成与多个发射天线相对应的多个信号分支，以便对应于循环延迟映射规则中的至少一个， 多个发射天线随着时间的推移而变化，以防止随着时间流逝而降低系统性能。

公开(公告)号：US20120040702A1

公开(公告)日：2012-02-16

申请号：US13264495

申请日：2009-04-16

申请人： Keying Wu ,  Yang Song ,  Xiaolong Zhu

发明人： Keying Wu ,  Yang Song ,  Xiaolong Zhu

IPC分类号： H04B15/00 ,  H04W4/00

CPC分类号： H04W72/0426 ,  H04B7/024 ,  H04B7/0413 ,  H04L5/0035 ,  H04L5/0073

摘要： According to an embodiment of the present invention, on a radio resource block for Multi-BS MIMO, one of the coordinating base stations selects a mobile terminal at first, and informs the other base stations of the characterization information and the pre-coding information etc. of the selected mobile terminal, and the selection made by the other base stations will obey the selection result of the base station that selects at first. By applying the method and apparatus provided by the present invention, the joint selection of object terminals in the Multi-BS MIMO is realized, and such selection is distributed without any central scheduling device which is necessary in the central scheduling scheme. In addition, only very limited information exchange among the coordinating base stations is required to realize the present invention. According to an embodiment of the present invention, the object terminals selected by the coordinating base stations are matched well with each other such that the total performance of the system is improved; according to an embodiment of the present invention, the fairness among the base stations can be well satisfied.

摘要翻译： 根据本发明的实施例，在多BS MIMO的无线资源块中，协调基站之一首先选择移动终端，并向其他基站通知特征信息和预编码信息等 ，并且由其他基站进行的选择将服从首先选择的基站的选择结果。 通过应用本发明提供的方法和装置，实现了多BS MIMO中的对象终端的联合选择，并且在中央调度方案中不需要任何中央调度装置的情况下分发这种选择。 此外，为了实现本发明，需要协调基站之间的非常有限的信息交换。 根据本发明的实施例，由协调基站选择的对象终端彼此匹配，从而提高了系统的总体性能; 根据本发明的实施例，可以很好地满足基站之间的公平性。

公开(公告)号：US20110207494A1

公开(公告)日：2011-08-25

申请号：US13125304

申请日：2008-10-31

申请人： Xiaolong Zhu ,  Dong Li ,  Yang Song

发明人： Xiaolong Zhu ,  Dong Li ,  Yang Song

IPC分类号： H04B7/26

CPC分类号： H04B7/024 ,  H04L5/0014 ,  H04L5/0035 ,  H04L5/0094 ,  H04W72/1278

摘要： A solution for multiple base station collaborative communication in TDD (Time Division Duplex) and FDD (Frequency Division Duplex) systems is provided. To be specific, a serving base station and coordinating base station transmit detection signals with specific Multiple Input Multiple Output (MIMO) features on one or more communication resources. The mobile station measures the detection signals on the one or more communication resources and generates indication information of the recommended collaborative communication modes based on the measurement results. Preferably the indexes of the time-frequency resources corresponding to the recommended collaborative communication modes are reported to the serving base station. Then the serving base station schedules at least one of the one or more mobile stations according to the indication information reported by the one or more stations and provides MIMO communication manner for the mobile station scheduled. The coverage of the cells is improved, the cell edge user throughput is increased and the inter-cell interference between neighboring base stations is decreased by exploiting the invention. Preferably the amount of uplink feedback information is decreased and the uplink bandwidth is saved.

摘要翻译： 提供了TDD（时分双工）和FDD（Frequency Division Duplex）系统中多基站协同通信的解决方案。 具体来说，服务基站和协调基站在一个或多个通信资源上传送具有特定多输入多输出（MIMO）特征的检测信号。 移动站测量一个或多个通信资源上的检测信号，并基于测量结果生成推荐的协作通信模式的指示信息。 优选地，将与推荐的协作通信模式相对应的时间 - 频率资源的索引报告给服务基站。 然后，服务基站根据由一个或多个站报告的指示信息来调度一个或多个移动站中的至少一个，并为调度的移动站提供MIMO通信方式。 改善了小区的覆盖范围，通过利用本发明，增加了小区边缘用户吞吐量并减少了相邻基站之间的小区间干扰。 优选地，上行链路反馈信息的量减少，并且保存上行链路带宽。