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1. 发明申请

US20070042717A1 Scheduling multi-user transmission in the downlink of a multi-antenna wireless communication system 有权
标题翻译：在多天线无线通信系统的下行链路中调度多用户传输
公开(公告)号：US20070042717A1
公开(公告)日：2007-02-22
申请号：US11204775
申请日：2005-08-16
申请人： Angeliki Alexiou , Abdelkader Medles
发明人： Angeliki Alexiou , Abdelkader Medles
IPC分类号： H04B7/00
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0617 , H04B7/0647
摘要： The present invention provides a method and an apparatus for controlling a radio frequency transmission, over a downlink to at least one mobile station user among a plurality of mobile station users, from a plurality of antennas associated with a base station in a wireless communication system. The method includes tracking a channel corresponding to the mobile station user of the plurality of mobile station users based on feedback information indicative of a state of the channel therefrom. The method further includes scheduling, for the at least one mobile station user, a directional transmission based on the tracked channels of the plurality of mobile station users.
摘要翻译：本发明提供了一种用于在与无线通信系统中的基站相关联的多个天线中的下行链路中控制多个移动台用户中的至少一个移动台用户的射频传输的方法和装置。该方法包括基于表示该信道的状态的反馈信息跟踪与多个移动台用户的移动台用户对应的信道。所述方法还包括基于所述多个移动台用户的所跟踪的信道为所述至少一个移动台用户调度定向传输。

2. 发明授权

US07907911B2 Scheduling multi-user transmission in the downlink of a multi-antenna wireless communication system 有权
标题翻译：在多天线无线通信系统的下行链路中调度多用户传输
公开(公告)号：US07907911B2
公开(公告)日：2011-03-15
申请号：US11204775
申请日：2005-08-16
申请人： Angeliki Alexiou , Abdelkader Medles
发明人： Angeliki Alexiou , Abdelkader Medles
IPC分类号： H04B7/00 , H04B17/00 , H04W72/00 , H04W4/00
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0617 , H04B7/0647
摘要： The present invention provides a method and an apparatus for controlling a radio frequency transmission, over a downlink to at least one mobile station user among a plurality of mobile station users, from a plurality of antennas associated with a base station in a wireless communication system. The method includes tracking a channel corresponding to the mobile station user of the plurality of mobile station users based on feedback information indicative of a state of the channel therefrom. The method further includes scheduling, for the at least one mobile station user, a directional transmission based on the tracked channels of the plurality of mobile station users.
摘要翻译：本发明提供了一种用于在与无线通信系统中的基站相关联的多个天线中的下行链路中控制多个移动台用户中的至少一个移动台用户的射频传输的方法和装置。该方法包括基于表示该信道的状态的反馈信息跟踪与多个移动台用户的移动台用户对应的信道。所述方法还包括基于所述多个移动台用户的所跟踪的信道为所述至少一个移动台用户调度定向传输。

3. 发明授权

US07242724B2 Method and apparatus for transmitting signals in a multi-antenna mobile communications system that compensates for channel variations 有权
标题翻译：用于在补偿信道变化的多天线移动通信系统中发送信号的方法和装置
公开(公告)号：US07242724B2
公开(公告)日：2007-07-10
申请号：US10620987
申请日：2003-07-16
申请人： Angeliki Alexiou , Mohammed Qaddi
发明人： Angeliki Alexiou , Mohammed Qaddi
IPC分类号： H04B7/02
CPC分类号： H04L25/0202 , H04B7/0626 , H04B7/0656 , H04B7/0669 , H04L1/0618 , H04L25/0248
摘要： A method is provided for transmitting signals from a transmitter comprising two or more antennas in a mobile telecommunications network. The method involves determining channel state information, estimating the reliability of that channel state information, and space time block encoding at least one data sequence. Before transmitting the data sequence, a linear transformation is applied to the data sequence so as to at least partially compensate for channel variations. The linear transformation is dependent upon the channel state information and upon the estimated reliability of the channel state information.
摘要翻译：提供一种用于在移动电信网络中从包括两个或更多个天线的发射机发射信号的方法。该方法包括确定信道状态信息，估计该信道状态信息的可靠性，以及对至少一个数据序列进行空间时间块编码。在发送数据序列之前，对数据序列应用线性变换，以便至少部分地补偿信道变化。线性变换取决于信道状态信息和信道状态信息的估计可靠性。

4. 发明申请

US20110211647A1 CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK 有权
标题翻译：基于分层反馈的无线通信闭环多输入多输出方案
公开(公告)号：US20110211647A1
公开(公告)日：2011-09-01
申请号：US13098731
申请日：2011-05-02
申请人： Angeliki Alexiou , Federico Boccardi , Howard C. Huang
发明人： Angeliki Alexiou , Federico Boccardi , Howard C. Huang
IPC分类号： H04B7/02
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0639 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s).
摘要翻译：本发明提供了在具有多个天线和一个或多个用户终端的基站中实现的方法。该方法的一个实施例包括响应于向所述至少一个用户发送第一帧而从至少一个用户接收反馈。第一帧通过使用从与至少一个用户相关联的至少一个第一代码簿中选择的至少一个第一代码字来预编码至少一个符号来形成。该方法还包括向用户发送至少一个第二帧。使用从至少一个第二码本中选择的至少一个第二码字对第二帧进行预编码。基于反馈和第一码字确定的第二码本。

5. 发明授权

US07424273B2 Evaluating performance of a multiple-input multiple output (MIMO) communications link 有权
标题翻译：评估多输入多输出（MIMO）通信链路的性能
公开(公告)号：US07424273B2
公开(公告)日：2008-09-09
申请号：US10715923
申请日：2003-11-18
申请人： Angeliki Alexiou
发明人： Angeliki Alexiou
IPC分类号： H04B7/02 , H04B7/00 , H04L1/02
CPC分类号： H04L1/203
摘要： A method is provided of evaluating the frame error probability (FER) of a selected communications link in a telecommunications network. The link is that between a MIMO transmitter comprising one of a base station or mobile user terminal, and MIMO receiver comprising the other of the base station or mobile user terminal. The method comprises determining values of instantaneous channel capacity of a MIMO channel of a mobile user terminal at multiple time instants over a predetermined time, processing the values to determining a level of channel capacity which any of the instantaneous channel capacity values has a predetermined probability of being less than, and looking up said level in predetermined calibration data of FER versus the channel capacity level so as to provide an FER value.
摘要翻译：提供了一种评估电信网络中所选择的通信链路的帧错误概率（FER）的方法。链路是包括基站或移动用户终端之一的MIMO发射机和包括基站或移动用户终端中的另一个的MIMO接收机之间的链路。该方法包括在预定时间内确定多个时刻的移动用户终端的MIMO信道的瞬时信道容量的值，处理该值以确定信道容量的电平，任何瞬时信道容量值具有预定概率在FER的预定校准数据相对于信道容量级别小于并查找所述级别，以便提供FER值。

6. 发明申请

US20150236769A1 CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK 有权
标题翻译：基于分层反馈的无线通信闭环多输入多输出方案
公开(公告)号：US20150236769A1
公开(公告)日：2015-08-20
申请号：US14631278
申请日：2015-02-25
申请人： Angeliki Alexiou , Federico Boccardi , Howard C. Huang
发明人： Angeliki Alexiou , Federico Boccardi , Howard C. Huang
IPC分类号： H04B7/04 , H04L25/03
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0639 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s).
摘要翻译：本发明提供了在具有多个天线和一个或多个用户终端的基站中实现的方法。该方法的一个实施例包括响应于向所述至少一个用户发送第一帧而从至少一个用户接收反馈。第一帧通过使用从与至少一个用户相关联的至少一个第一代码簿中选择的至少一个第一代码字来对至少一个符号进行预编码来形成。该方法还包括向用户发送至少一个第二帧。使用从至少一个第二码本中选择的至少一个第二码字对第二帧进行预编码。基于反馈和第一码字确定的第二码本。

7. 发明申请

US20120039242A1 RELAYING DATA BETWEEN A BASE STATION AND USER EQUIPMENT 审中-公开
标题翻译：在基站和用户设备之间连接数据
公开(公告)号：US20120039242A1
公开(公告)日：2012-02-16
申请号：US13265703
申请日：2010-04-13
申请人： Angeliki Alexiou , Federico Boccardi
发明人： Angeliki Alexiou , Federico Boccardi
IPC分类号： H04B7/14
CPC分类号： H04B7/155 , H04B7/2606 , H04L47/621 , H04L47/6255 , H04L47/626 , H04W28/14 , H04W72/1252 , H04W84/047
摘要： A relay operable to relay data between a base station and user equipment of a wireless communications system, a relay-base station pair, methods and computer program products are disclosed. The relay comprises: queuing logic operable, for each user equipment supported by the relay, to form a pending data queue associated with that user equipment, the pending data queue storing received data intended for that user equipment which has yet to be transmitted by the relay over a communications channel between that user equipment and the relay; and scheduling logic operable to schedule transmissions of pending data to each user equipment based on at least one of a size of the pending data queue associated with each user equipment, priority of pending data and channel state information of the communications channel between each user equipment and the relay. In this way, the amount of unnecessary traffic being transmitted between the base station and the relays is reduced, the amount processing resources required in the base station is also reduced and, as a consequence, the deployment of relays within the macro network becomes much more scalable. Accordingly, new relays can be readily deployed where needed without requiring complex and careful network planning.
摘要翻译：公开了一种用于在基站和无线通信系统的用户设备之间中继数据的中继，中继基站对，方法和计算机程序产品。该继电器包括：对于由中继支持的每个用户设备，排队逻辑可以形成与该用户设备相关联的未决数据队列，等待数据队列存储旨在用于该中继器尚未发送的该用户设备的接收数据通过该用户设备和继电器之间的通信信道; 以及调度逻辑，其可操作以基于与每个用户设备相关联的未决数据队列的大小，每个用户设备之间的通信信道的未决数据的优先级和信道状态信息中的至少一个来调度对每个用户设备的未决数据的传输，继电器以这种方式，在基站和中继之间传输的不必要业务量减少，基站所需的处理资源量也减少了，结果是宏网内的中继站的部署变得更加多可扩展因此，可以在需要时轻松部署新的继电器，而不需要复杂而细致的网络规划。

8. 发明授权

US07957701B2 Closed-loop multiple-input-multiple-output scheme for wireless communication based on hierarchical feedback 有权
标题翻译：基于层次反馈的无线通信闭环多输入多输出方案
公开(公告)号：US07957701B2
公开(公告)日：2011-06-07
申请号：US11754624
申请日：2007-05-29
申请人： Angeliki Alexiou , Federico Boccardi , Howard C Huang
发明人： Angeliki Alexiou , Federico Boccardi , Howard C Huang
IPC分类号： H04B1/00
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0639 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s).
摘要翻译：本发明提供了在具有多个天线和一个或多个用户终端的基站中实现的方法。该方法的一个实施例包括响应于向所述至少一个用户发送第一帧而从至少一个用户接收反馈。第一帧通过使用从与至少一个用户相关联的至少一个第一代码簿中选择的至少一个第一代码字来对至少一个符号进行预编码来形成。该方法还包括向用户发送至少一个第二帧。使用从至少一个第二码本中选择的至少一个第二码字对第二帧进行预编码。基于反馈和第一码字确定的第二码本。

9. 发明授权

US07130580B2 Method of compensating for correlation between multiple antennas 有权
标题翻译：补偿多个天线之间的相关性的方法
公开(公告)号：US07130580B2
公开(公告)日：2006-10-31
申请号：US10621425
申请日：2003-07-17
申请人： Angeliki Alexiou , Mohammed Qaddi
发明人： Angeliki Alexiou , Mohammed Qaddi
IPC分类号： H03C7/02 , H04B1/02 , H04B7/02
CPC分类号： H04L1/0618
摘要： A method is provided of transmitting signals from two or more antennas in a wireless telecommunications network, in which at least one data sequence is space-time block encoded. Before transmitting the data sequence, a linear transformation is applied to the data sequence, the linear transformation being adapted to use knowledge of correlation among the antennas to at least partially compensate the transmitted signals for said correlation. The linear transformation depends on the eigenvalues of an antenna correlation matrix. The linear transformation further depends on a ratio of symbol energy (ES) to noise variance (σ2). The method includes transmitting the encoded and transformed data sequence.
摘要翻译：提供了一种从无线电信网络中的两个或多个天线发射信号的方法，其中至少一个数据序列被空间 - 时间块编码。在发送数据序列之前，对数据序列进行线性变换，线性变换适于使用天线之间的相关知识来至少部分地补偿用于所述相关的发射信号。线性变换取决于天线相关矩阵的特征值。线性变换还取决于符号能量（E SUB S S）与噪声方差（sigma2S）的比率。该方法包括发送编码和变换的数据序列。

10. 发明授权

US09020444B2 Closed-loop multiple-input-multiple-output scheme for wireless communication based on hierarchical feedback 有权
标题翻译：基于层次反馈的无线通信闭环多输入多输出方案
公开(公告)号：US09020444B2
公开(公告)日：2015-04-28
申请号：US13617358
申请日：2012-09-14
申请人： Angeliki Alexiou , Federico Boccardi , Howard C. Huang
发明人： Angeliki Alexiou , Federico Boccardi , Howard C. Huang
IPC分类号： H04B1/00 , H04L25/03 , H04B7/06 , H04B7/04
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0639 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s).
摘要翻译：本发明提供了在具有多个天线和一个或多个用户终端的基站中实现的方法。该方法的一个实施例包括响应于向所述至少一个用户发送第一帧而从至少一个用户接收反馈。第一帧通过使用从与至少一个用户相关联的至少一个第一代码簿中选择的至少一个第一代码字来对至少一个符号进行预编码来形成。该方法还包括向用户发送至少一个第二帧。使用从至少一个第二码本中选择的至少一个第二码字对第二帧进行预编码。基于反馈和第一码字确定的第二码本。

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