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21. 发明申请

WO2010075172A2 SYSTEM AND METHOD FOR COMBINATION MULTIPLE INPUT, MULTIPLE OUTPUT (MIMO) AND BEAMFORMING 审中-公开
标题翻译：用于组合多输入，多输出（MIMO）和波束形成的系统和方法
公开(公告)号：WO2010075172A2
公开(公告)日：2010-07-01
申请号：PCT/US2009/068503
申请日：2009-12-17
申请人： MOTOROLA, INC. , KRAUSS, Thomas, P. , VOOK, Frederick, W. , ZHUANG, Xiangyang
发明人： KRAUSS, Thomas, P. , VOOK, Frederick, W. , ZHUANG, Xiangyang
IPC分类号： H04B7/04 , H04W16/28 , H04W84/10
CPC分类号： H04B7/0413 , H04B7/0617 , H04B7/10 , H04B17/21
摘要： Specifically, a method and system are provided that performs MIMO and beamforming at a base station (102) based on an uplink channel sounding (ULCS) from only one of a mobile station's (130) antennas (132, 134) and closed-loop multiple input, multiple output (MIMO) schemes based on the singular value decomposition (SVD) of the channel matrix. The ULCS is limited to sounding and the channel uses fewer than an optimal number of transmit antennas, for example, one for WiMAX. The base station's array (118, 120, 122, 124) may be configured for a full array transmitting mode (800, 900) or a sub-array transmitting mode (1200, 1300).
摘要翻译：具体地，提供了一种方法和系统，其基于仅来自移动台（130）天线（132,134）中的一个和闭环多个（130）的上行链路信道探测（ULCS）在基站（102）处执行MIMO和波束成形基于信道矩阵的奇异值分解（SVD）的输入多输出（MIMO）方案。 ULCS仅限于发声，信道使用的发射天线数量少于最佳数量，例如WiMAX。基站的阵列（118,120,122,124）可以被配置用于全阵列发送模式（800,900）或子阵列发送模式（1200,1300）。

22. 发明申请

WO2010053684A2 ANTENNA RECIPROCITY CALIBRATION 审中-公开
标题翻译：天线校准校准
公开(公告)号：WO2010053684A2
公开(公告)日：2010-05-14
申请号：PCT/US2009/061230
申请日：2009-10-20
申请人： MOTOROLA, INC. , VOOK, Frederick W., , BURIS, Nicholas E., , MUELLER, Bruce D.,
发明人： VOOK, Frederick W., , BURIS, Nicholas E., , MUELLER, Bruce D.,
IPC分类号： H04B17/00 , H04B7/04
CPC分类号： H04B17/21
摘要： A method and a system for calibrating at least one antenna (1,1-1,3. 1,j). At least a first antenna (1,4) within a first antenna array (102) can be selected as a primary reference antenna. At least one antenna (4,3) that is not within the first antenna array can be selected as a secondary reference antenna. At least a first signal propagation characteristic (122) can be measured based on at least one signal wirelessly communicated between the primary reference antenna and the secondary reference antenna. At least a second signal propagation characteristic (118) can be measured based on at least one signal wirelessly communicated between the secondary reference antenna and at least a second antenna (1,2) within the first antenna array. At least a first calibration coefficient can be determined for the second antenna.
摘要翻译：一种用于校准至少一个天线（1,1-1,3,1，j）的方法和系统。至少第一天线阵列（102）内的第一天线（1,4）可以被选择为主参考天线。可以选择不在第一天线阵列内的至少一个天线（4,3）作为次参考天线。可以基于在主参考天线和次参考天线之间无线通信的至少一个信号来测量至少第一信号传播特性（122）。可以基于第二参考天线和第一天线阵列内的至少第二天线（1,2）之间无线通信的至少一个信号来测量至少第二信号传播特性（118）。至少可以确定第二天线的第一校准系数。

23. 发明申请

WO2008134272A1 METHOD AND APPARATUS FOR PERFORMING MULTI-ANTENNA TRANSMISSION 审中-公开
标题翻译：用于执行多天线传输的方法和装置
公开(公告)号：WO2008134272A1
公开(公告)日：2008-11-06
申请号：PCT/US2008/060966
申请日：2008-04-21
申请人： MOTOROLA, INC. , ARYANFAR, Farshid, , BURIS, Nicholas E., , VOOK, Frederick W.,
发明人： ARYANFAR, Farshid, , BURIS, Nicholas E., , VOOK, Frederick W.,
IPC分类号： H04J15/00 , H04B7/04
CPC分类号： H04B7/0617 , H04B17/101 , H04B17/102 , H04B17/103 , H04B17/17 , H04L1/0003 , H04L1/0009 , H04L1/0618
摘要： A method and apparatus for performing beamforming are provided herein. During operation, a mobile device will notify a base station of the situation in which one or more of its antennas has become unusable. Using this technique, the Multiple Input, Multiple Output (MIMO) algorithms employed at the base station will be adjusted accordingly.
摘要翻译：本文提供了一种用于执行波束形成的方法和装置。在操作期间，移动设备将通知基站其中一个或多个天线已经变得不可用的情况。使用这种技术，基站采用的多输入多输出（MIMO）算法将被相应地调整。

24. 发明申请

WO2007136933A1 METHOD AND APPARATUS FOR PERFORMING STREAM WEIGHTING IN AN SDMA COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在SDMA通信系统中执行流加权的方法和装置
公开(公告)号：WO2007136933A1
公开(公告)日：2007-11-29
申请号：PCT/US2007/065835
申请日：2007-04-03
申请人： MOTOROLA, INC. , THOMAS, Timothy A., , VOOK, Frederick W.,
发明人： THOMAS, Timothy A., , VOOK, Frederick W.,
IPC分类号： H04B7/06 , H04Q7/36
CPC分类号： H04B7/0617 , H04B7/0697
摘要： A method and apparatus for performing stream weighting in a spatial-division multiple access communication system is provided herein. During operation the base station receiver receives channel information from mobiles (also known as users or nodes) and calculates transmit antenna weights that maximize the power delivered to each mobile while allowing for a small amount of crosstalk to exist between users. Information or data is transmitted to the nodes utilizing the appropriate stream weights. By allowing tolerable amounts of cross talk, the coherent gain to the desired SDMA user can be increased, and thus the overall performance is improved.
摘要翻译：本文提供了一种在空分多址通信系统中执行流加权的方法和装置。在操作期间，基站接收机从移动台（也称为用户或节点）接收信道信息，并且计算发送天线权重，其最大化传送到每个移动台的功率，同时允许在用户之间存在少量串扰。使用适当的流权重将信息或数据传送到节点。通过允许容忍量的串扰，可以增加对期望的SDMA用户的相干增益，从而提高整体性能。

25. 发明申请

WO2007092671A2 METHOD AND APPARATUS FOR PERFORMING SPATIAL-DIVISION MULTIPLE ACCESS 审中-公开
标题翻译：用于执行空间分割多路访问的方法和装置
公开(公告)号：WO2007092671A2
公开(公告)日：2007-08-16
申请号：PCT/US2007060894
申请日：2007-01-23
申请人： MOTOROLA INC , MONDAL BISHWARUP , ZHUANG XIANGYANG , BAUM KEVIN L , THOMAS TIMOTHY A , VOOK FREDERICK W
发明人： MONDAL BISHWARUP , ZHUANG XIANGYANG , BAUM KEVIN L , THOMAS TIMOTHY A , VOOK FREDERICK W
CPC分类号： H04B7/0617 , H04B7/0452 , H04B7/0634 , H04B7/0639 , Y02D70/00 , Y02D70/444
摘要： A method and apparatus for performing spatial-division multiple access within a communication system is provided herein. During operation, nodes will return null subspace information along with their channel subspace information. The null subspace is similar to the channel subspace except that the null subspace information directs a base station to the matrix in a predefined codebook that results in minimum power being received at the node. The null subspace for each node is taken into consideration when communicating with a particular node.
摘要翻译：本文提供了一种在通信系统内执行空分多址的方法和装置。在运行期间，节点将返回空子空间信息及其信道子空间信息。空子空间类似于信道子空间，除了空子信息将基站指向预定义码本中的矩阵，导致在该节点处接收的最小功率。当与特定节点进行通信时，将考虑每个节点的空子空间。

26. 发明申请

WO2006020483A3 METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION 审中-公开
标题翻译：用于闭环传输的方法和设备
公开(公告)号：WO2006020483A3
公开(公告)日：2006-09-08
申请号：PCT/US2005027685
申请日：2005-08-03
申请人： MOTOROLA INC , VOOK FREDERICK W , ZHUANG XIANGYANG , BAUM KEVIN L , THOMAS TIMOTHY A
发明人： VOOK FREDERICK W , ZHUANG XIANGYANG , BAUM KEVIN L , THOMAS TIMOTHY A
IPC分类号： H04B1/00 , H04B7/00 , H04B17/00 , H04W72/04
CPC分类号： H04L5/0094 , H04L5/0023 , H04L5/0026 , H04L5/0051 , H04L25/0226 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03796 , H04L2025/03815 , H04W72/04
摘要： In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response.
摘要翻译：在无线通信系统中，公开了一种用于闭环传输的方法和装置。根据本发明的优选实施例，上行链路帧的时间频率部分被动态保留为用于上行链路信道探测的探测区域。在分配探测区内的时间 - 频率资源的下行链路帧和探测波形中，将第一消息发送到第一用户站。此外，在所分配的时频资源内从用户台接收信号，根据接收到的探测信号确定部分信道响应，并且基于至少部分信道响应对用户台的后续传输进行定制。

27. 发明申请

WO2004077709A3 METHOD AND APPARATUS FOR REDUCING INTERFERENCE WITHIN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于减少通信系统干扰的方法和装置
公开(公告)号：WO2004077709A3
公开(公告)日：2005-01-13
申请号：PCT/US2004004105
申请日：2004-02-12
申请人： MOTOROLA INC , THOMAS TIMOTHY A , VOOK FREDERICK W
发明人： THOMAS TIMOTHY A , VOOK FREDERICK W
IPC分类号： H04B7/08 , H04L27/26 , H04B1/10
CPC分类号： H04B7/0854 , H04L27/2607 , H04L27/2647
摘要： A method for reducing interference within a communication system is provided herein. The method comprises the steps of receiving a signal y(n), where y(n) comprises a desired signal, s(n), and a co-channel interfering signal, i(n), wherein s(n) and i(n) are not time-synchronized, converting y(n) into a frequency-domain signal Y(k) (105), calculating a weight vector W(k) (109), wherein W(k) is based on s(n) and i(n), and additionally based on a time offset T existing between s(n) and i(n), and applying W(k) to Y(k) (111) in order to equalize the desired signal, s(n), and reduce co-channel interference i(n).
摘要翻译：本文提供了一种用于减少通信系统内的干扰的方法。该方法包括以下步骤：接收信号y（n），其中y（n）包括期望信号s（n）以及同信道干扰信号i（n），其中s（n）和i（ n）不是时间同步的，将y（n）转换成频域信号Y（k）（105），计算权重向量W（k）（109），其中W（k）基于s（n ）和i（n），并且另外基于存在于s（n）和i（n）之间的时间偏移T，并且将W（k）应用于Y（k）（111），以便均衡所需信号，s （n），并减少同信道干扰i（n）。

28. 发明申请

WO2004077709A2 METHOD AND APPARATUS FOR REDUCING INTERFERENCE WITHIN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于减少通信系统干扰的方法和装置
公开(公告)号：WO2004077709A2
公开(公告)日：2004-09-10
申请号：PCT/US2004/004105
申请日：2004-02-12
申请人： MOTOROLA INC. A CORPORATION OF THE STATE OF DELAWARE , THOMAS, Timothy A., , VOOK, Frederick W.,
发明人： THOMAS, Timothy A., , VOOK, Frederick W.,
IPC分类号： H04J
CPC分类号： H04B7/0854 , H04L27/2607 , H04L27/2647
摘要： A method for reducing interference within a communication system is provided herein. The method comprising the steps of receiving a signal y( n ), where y( n ) comprises a desired signal, s( n ), and a co-channel interfering signal, i( n ), wherein s(n) and i( n ) are not time-synchronized, converting y( n ) into a frequency-domain signal Y( k ), calculating a weight vector W( k ), wherein W( k ) is based on s( n ) and i( n ), and additionally based on a time offset T existing between s( n ) and i( n ), and applying W( k ) to Y( k ) in order to equalize the desired signal, s( n ), and reduce co-channel interference i( n ).
摘要翻译：本文提供了一种用于减少通信系统内的干扰的方法。该方法包括以下步骤：接收信号y（n），其中y（n）包括期望信号s（n）以及同信道干扰信号i（n），其中s（n）和i（ n）不是时间同步的，将y（n）转换成频域信号Y（k），计算加权矢量W（k），其中W（k）基于s（n）和i（n）并且另外基于存在于s（n）和i（n）之间的时间偏移T，并且将W（k）应用于Y（k）以便均衡期望信号s（n），并且减少同频道干扰i（n）。

29. 发明申请

WO2011130192A2 MANIFOLD CALIBRATION FOR A COMMUNICATION SYSTEM 审中-公开
标题翻译：通信系统的流水线校准
公开(公告)号：WO2011130192A2
公开(公告)日：2011-10-20
申请号：PCT/US2011032011
申请日：2011-04-12
申请人： MOTOROLA MOBILITY INC , THOMAS TIMOTHY A , VOOK FREDERICK W
发明人： THOMAS TIMOTHY A , VOOK FREDERICK W
IPC分类号： H04B17/00 , H01Q3/26 , H04B7/06 , H04B7/08
CPC分类号： H04B7/086 , H04B7/0617 , H04B17/10 , H04B17/21
摘要： A method and apparatus for determining stream weights is provided herein. During operation, an uplink direction of arrival (DOA) and a downlink direction of departure (DOD) calibration procedure is implemented using uplink signals and GPS information from a subset of mobiles without the need of calibration circuitry at the base. Because the presented calibration procedure needs no new hardware it can be deployed in existing deployments with only a soft-ware upgrade.
摘要翻译：本文提供了用于确定流权重的方法和设备。在操作期间，使用来自移动站子集的上行链路信号和GPS信息来实现上行方向到达方向（DOA）和下行离去方向（DOD）校准过程，而不需要基站处的校准电路。由于所提供的校准过程不需要新的硬件，因此只需软件升级即可部署在现有部署中。

30. 发明申请

WO2011053501A1 DIFFERENTIAL CLOSED-LOOP TRANSMISSION FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的差分闭环传输反馈
公开(公告)号：WO2011053501A1
公开(公告)日：2011-05-05
申请号：PCT/US2010/053489
申请日：2010-10-21
申请人： MOTOROLA MOBILITY, INC. , THOMAS, Timothy, A. , MONDAL, Bishwarup , VISOTSKY, Eugene , VOOK, Frederick, W.
发明人： THOMAS, Timothy, A. , MONDAL, Bishwarup , VISOTSKY, Eugene , VOOK, Frederick, W.
IPC分类号： H04L25/02 , H04L25/03 , H04B7/04 , H04B7/06
CPC分类号： H04L27/2601 , H04B7/0617 , H04B7/0623 , H04B7/0641 , H04L25/0242 , H04L25/03006 , H04L25/03343 , H04L2025/03426
摘要： A method for providing channel feedback is provided herein. During operation, a covariance matrix at time t (R) is calculated as a function of a received downlink signal. A feedback Matrix C t is also calculated and is based on a previous quantized covariance matrix (R q t-1 ), the covariance matrix (R) at time t, and a forgetting factor ( ϒ ) that is applied to R q t-1 . The matrix C t is then used to create a DERC feedback message (signal or waveform) and may be transmitted with pilots on a proper feedback channel to a base unit. The base unit receives the feedback matrix (C t ) as a DERC waveform on a proper feedback channel. The base unit uses non-coherent or coherent detection to detect the DERC values send by the remote unit and uses the DERC values with a previous quantized covariance matrix estimate, a forgetting factor, and a weighting value to compute a covariance matrix estimate to use for beamforming. The base unit then uses the covariance matrix estimate to determine appropriate channel beamforming weights, and instructs transmit beamforming circuitry to use the appropriate weights.
摘要翻译：本文提供了一种用于提供信道反馈的方法。在操作期间，计算时间t（R）的协方差矩阵作为接收到的下行链路信号的函数。还计算反馈矩阵Ct，并且基于先前的量化协方差矩阵（Rq t-1），时间t的协方差矩阵（R）和应用于Rq t-1的遗忘因子（λ）。矩阵Ct然后用于创建DERC反馈消息（信号或波形），并且可以在适当反馈信道上的导频发送到基本单元。基本单元在适当的反馈信道上接收反馈矩阵（Ct）作为DERC波形。基本单元使用非相干或相干检测来检测远程单元发送的DERC值，并且使用具有先前的量化协方差矩阵估计，遗忘因子和加权值的DERC值来计算协方差矩阵估计，以用于波束成形。基本单元然后使用协方差矩阵估计来确定适当的信道波束成形权重，并且指示发送波束成形电路使用适当的权重。

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