公开(公告)号：US09539905B2

公开(公告)日：2017-01-10

申请号：US14890156

申请日：2015-05-28

申请人： Anhui University of Science and Technology ,  Xiaolong Zhu

发明人： Chengjun Wang ,  Long Li ,  Xiaolong Zhu ,  Zhiwei Liu ,  Chao Zhang ,  Kai Liu ,  Tianyu Zhang

IPC分类号： B60L5/00 ,  B60L5/18 ,  B61C3/00 ,  B60L5/22

CPC分类号： B60L5/18 ,  B60L5/22 ,  B61C3/00

摘要： The invention discloses a three-DOF hybrid damping pantograph, comprising an electric driving transmission system fixed on a base, and collector heads, transverse dampers, parallel support frames as well as longitudinal dampers. Square auxiliary holes are arranged on the base, supporting insulators are arranged on four angles below the base; four transverse dampers are symmetrically fixed on the base, and arranged on the outside of the parallel support frames and connected with the parallel support frames through hinges; four longitudinal dampers are symmetrically fixed on the top of the parallel support frames; the collector heads are connected with the parallel support frames by the longitudinal dampers and separators are arranged on the collector heads. The invention can realize bearing and damping spatially in three directions, avoid pantograph detachment, catenary scraping and other safety accidents, and improve the structural stability of the pantograph and adaptability to the catenary.

摘要翻译： 本发明公开了一种三自由度混合阻尼集电弓，其包括固定在基座上的电驱动传动系统以及收集器头，横向阻尼器，平行支撑框架以及纵向阻尼器。 方形辅助孔布置在基座上，支撑绝缘子在基座下方四个角度排列; 四个横向阻尼器对称地固定在基座上，并且布置在平行支撑框架的外侧上，并通过铰链与平行的支撑框架连接; 四个纵向阻尼器对称地固定在平行支撑框架的顶部上; 收集头通过纵向阻尼器与平行的支撑框架连接，分离器设置在收集器头上。 本发明可以在三个方向空间实现轴承和阻尼，避免受电弓脱落，悬链线等安全事故，提高受电弓的结构稳定性和适应性。

公开(公告)号：US08655281B2

公开(公告)日：2014-02-18

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： H04B1/00 ,  H04B15/00

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：US08615049B2

公开(公告)日：2013-12-24

申请号：US13258708

申请日：2009-03-25

申请人： Keying Wu ,  Xiaolong Zhu ,  Yang Song

发明人： Keying Wu ,  Xiaolong Zhu ,  Yang Song

IPC分类号： H04B15/00 ,  H04L27/28

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

摘要： The present invention provides a method and an apparatus of controlling co-channel interference in a base station of a wireless communication system based on collaborative MIMO and the corresponding method and apparatus of assisting a serving base station to control co-channel interference in a mobile station of a wireless communication system based on collaborative MIMO. Since the feedback mechanism based on the codebook is employed in the collaborative MIMO system in the present invention to enable the BS to obtain the precoding information, the present invention can be used to the both TDD mode and FDD mode. Moreover, since the precoding vectors selected by the different mobile stations for a same BS are always orthogonal, multi-user co-channel interference can be reduced.

摘要翻译： 本发明提供了一种基于协同MIMO控制无线通信系统的基站中的同频干扰的方法和装置，以及辅助服务基站控制移动台中的同频干扰的相应方法和装置 基于协作MIMO的无线通信系统。 由于在本发明的协作MIMO系统中采用基于码本的反馈机制，以使得BS能够获得预编码信息，本发明可以用于TDD模式和FDD模式。 此外，由于用于相同BS的不同移动台选择的预编码向量总是正交的，所以可以减少多用户同信道干扰。

公开(公告)号：US20110255625A1

公开(公告)日：2011-10-20

申请号：US13142121

申请日：2008-12-31

申请人： Yang Song ,  Xiaolong Zhu ,  Dong Li

发明人： Yang Song ,  Xiaolong Zhu ,  Dong Li

IPC分类号： H04B7/02

CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/0639

摘要： The present invention provides a novel codebook-based multi-base station unite pre-coding scheme. In this invention, multiple cooperating base stations commonly transmit signals to a mobile terminal. The mobile terminal estimates a channel matrix of a unite MIMO channel from the multiple cooperating base stations, and selects the optimal pre-coding matrix index from the pre-coding matrix codebook based on the unite MIMO channel matrix and feeds it back to the multiple cooperating base stations. Each cooperating base station selects the optimal pre-coding matrix based on the received pre-coding matrix index and uses the corresponding portion of the pre-coding matrix to perform unite pre-coding on the data. Namely, the respective partial pre-coding matrixes as employed by all cooperating base stations together form the pre-coding matrix that is optimal to the mobile terminal, and the pre-coding matrix as used by respective cooperating base stations is a part of the optimal pre-coding matrix. By using the codebook-based multi-base station unite pre-coding scheme according to the present invention, the user performance is improved, the complexity of implementation is low, and the demand on network connecting the base stations is very low.

摘要翻译： 本发明提供了一种新颖的基于码本的多基站联合预编码方案。 在本发明中，多个协作基站通常向移动终端发送信号。 移动终端估计来自多个协作基站的单一MIMO信道的信道矩阵，并且基于单一MIMO信道矩阵从预编码矩阵码本中选择最佳预编码矩阵索引，并将其馈送回到多个协作基站 基站 每个协作基站基于接收到的预编码矩阵索引选择最优预编码矩阵，并使用预编码矩阵的相应部分对该数据执行一致的预编码。 也就是说，由所有协作的基站采用的各个部分预编码矩阵一起形成对于移动终端是最佳的预编码矩阵，并且由各个协作的基站使用的预编码矩阵是最优的 预编码矩阵。 通过使用根据本发明的基于码本的多基站联合预编码方案，提高了用户性能，实现的复杂度低，并且对连接基站的网络的需求非常低。

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：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。

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：US09071291B2

公开(公告)日：2015-06-30

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： H04W36/00 ,  H04B7/02 ,  H04W72/12 ,  H04L5/00

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。