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1. 发明申请

WO2009137250A2 METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统干扰消除的方法和装置
公开(公告)号：WO2009137250A2
公开(公告)日：2009-11-12
申请号：PCT/US2009/040755
申请日：2009-04-16
申请人： MOTOROLA, INC. , SUDARSHAN, Pallav , STEWART, Kenneth, A. , ZHUANG, Xiangyang
发明人： SUDARSHAN, Pallav , STEWART, Kenneth, A. , ZHUANG, Xiangyang
IPC分类号： H04L25/03
CPC分类号： H04L25/0204 , H04L5/0007 , H04L5/0048 , H04L25/021 , H04L25/0228 , H04L25/0242 , H04L27/2605 , H04L27/2647 , H04W72/085
摘要： A mobile device estimates a data symbol from a received signal by using one or more interference cancellation algorithms. For one interference cancellation algorithm, the mobile device calculates (302) a Channel State Information (CSI) of an interfering sector and calculates (304) a CSI of a serving sector at a different time. The mobile device then determines (310) a correction factor to the CSI of the interfering sector by, for example, estimating a Doppler speed and a time difference between a first time interval like a preamble symbol and a second time interval like any symbol of interest in the data zone. Using the correction factor, the mobile device updates outdated interference information. The mobile device can cancel interference in the received signal distorted by co-channel interference by using the updated interference information. Also, the mobile device can be configured to combine results of multiple interference cancellation algorithms based on the applicability of the individual interference cancellation algorithms in particular scenarios.
摘要翻译：移动设备通过使用一个或多个干扰消除算法从接收信号估计数据符号。对于一种干扰消除算法，移动设备计算（302）干扰扇区的信道状态信息（CSI），并在不同时间计算（304）服务扇区的CSI。然后，移动设备通过例如估计诸如前同步码符号的第一时间间隔和像感兴趣的符号之类的第二时间间隔之间的时间差来确定（310）对干扰扇区的CSI的校正因子在数据区。使用校正因子，移动设备更新过时的干扰信息。移动设备可以通过使用更新的干扰信息来消除由同信道干扰失真的接收信号中的干扰。此外，移动设备可以被配置为基于在特定情况下各个干扰消除算法的适用性来组合多个干扰消除算法的结果。

2. 发明申请

WO2009048764A2 FLEXIBLE FRAME STRUCTURE IN WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的柔性帧结构
公开(公告)号：WO2009048764A2
公开(公告)日：2009-04-16
申请号：PCT/US2008/078280
申请日：2008-09-30
申请人： MOTOROLA, INC. , SUDARSHAN, Pallav , STEWART, Kenneth A. , ZHUANG, Xiangyang
发明人： SUDARSHAN, Pallav , STEWART, Kenneth A. , ZHUANG, Xiangyang
IPC分类号： H04B7/26
CPC分类号： H04B7/2656
摘要： The disclosure relates to a frame structure that can be flexibly configured to serve to half-duplex users or a mixture of half- and full-duplex users based upon the grouping of user terminals according to one or more criteria. The disclosure also relates to the switching of users from one group to another. The signaling mechanisms to reconfigure a frame and to switch users are provided.
摘要翻译：本公开涉及一种帧结构，其可以根据一个或多个用户终端的分组灵活配置为服务于半双工用户或半双工和全双工用户的混合标准。本公开还涉及用户从一个群组切换到另一个群组。提供了重新配置帧和切换用户的信令机制。

3. 发明申请

WO2010017005A1 MAPPING AND SIGNALING OF COMMON REFERENCE SYMBOLS FOR MULTIPLE ANTENNAS 审中-公开
标题翻译：多个天线的共同参考符号的映射和信号
公开(公告)号：WO2010017005A1
公开(公告)日：2010-02-11
申请号：PCT/US2009/050652
申请日：2009-07-15
申请人： MOTOROLA, INC. , LOVE, Robert , BROWN, Tyler , FRANK, Colin , LIU, Jialing , NORY, Ravi , SAYANA, Krishna Kamal , STEWART, Kenneth , SUDARSHAN, Pallav , ZHUANG, Xiangyang
发明人： LOVE, Robert , BROWN, Tyler , FRANK, Colin , LIU, Jialing , NORY, Ravi , SAYANA, Krishna Kamal , STEWART, Kenneth , SUDARSHAN, Pallav , ZHUANG, Xiangyang
IPC分类号： H04L5/00
CPC分类号： H04L5/0048
摘要： A method, a network base station, and a user communication device for transmitting data on an orthogonal frequency-division multiplexing carrier are disclosed. An antenna array may transmit a signal decodable by a legacy user communication device designed for compatibility with a legacy set of transmission antennas. A processor 210 may encode a subframe of the signal with a legacy set of common reference symbols and a supplemental set of common reference symbols referring to the antenna array.
摘要翻译：公开了一种用于在正交频分复用载波上发送数据的方法，网络基站和用户通信设备。天线阵列可以传输由传统用户通信设备解码的信号，该传统用户通信设备被设计用于与传统的传输天线集合兼容。处理器210可以用参考天线阵列的公共参考符号的遗留集合和公共参考符号的补充集来编码信号的子帧。

4. 发明申请

WO2009105741A3 METHOD FOR SUPPORTING FLEXIBLE FRAME STRUCTURES IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
公开(公告)号：WO2009105741A3
公开(公告)日：2009-08-27
申请号：PCT/US2009/034814
申请日：2009-02-23
申请人： MOTOROLA, INC. , SUDARSHAN, Pallav , HIDDINK, Gerrit W. , ZHUANG, Xiangyang
发明人： SUDARSHAN, Pallav , HIDDINK, Gerrit W. , ZHUANG, Xiangyang
IPC分类号： H04W72/12
摘要： A wireless communication base station including a transceiver coupled to a controller configured to cause the base station to serve a plurality of user terminals in a series of downlink radio frames each having a first temporal region and a second temporal region. The controller is configured to assign the plurality of user terminals to first and second groups, wherein the user terminals in the first group are served in the first temporal region of the downlink radio frame and the user terminals in the second group are served in the second temporal region of the downlink radio frame. The controller is also configured to change a duration of either of the first and second temporal regions of at least one downlink radio frame in the series of downlink radio frames, wherein a downlink radio frame contains an indicator signaling a change of duration of either of the first or second temporal regions of at least one downlink radio frame in the series of downlink radio frames.

5. 发明申请

WO2006001288A1 METHOD FOR PROCESSING RF SIGNALS IN WIRELESS MIMO COMMUNICATIONS SYSTEM 审中-公开
标题翻译：在无线MIMO通信系统中处理RF信号的方法
公开(公告)号：WO2006001288A1
公开(公告)日：2006-01-05
申请号：PCT/JP2005/011400
申请日：2005-06-15
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , MEHTA, Neelesh, B. , SUDARSHAN, Pallav , MOLISCH, Andreas, F. , ZHANG, Jinyun
发明人： MEHTA, Neelesh, B. , SUDARSHAN, Pallav , MOLISCH, Andreas, F. , ZHANG, Jinyun
IPC分类号： H04B7/04
CPC分类号： H04B7/0417 , H01Q3/26 , H04B7/0626 , H04B7/0691 , H04B7/0697 , H04B7/0848 , H04B7/0874 , H04L1/0036 , H04L1/0625 , H04L1/0631
摘要： A method is presented for processing signals of a multiple-input, multiple-output communications system in the RF domain. The system includes multiple transmit antennas and multiple receive antennas connected by a wireless channel. A matrix M is generated based on long-term characteristics of the wireless channel. The matrix M is multiplied times input RF signals to obtain output RF signals. The matrix can be generated in a transmitter, a receiver, or both.
摘要翻译：提出了一种用于处理RF域中的多输入多输出通信系统的信号的方法。该系统包括通过无线信道连接的多个发射天线和多个接收天线。基于无线信道的长期特性生成矩阵M. 矩阵M乘以输入RF信号，以获得输出RF信号。矩阵可以在发射机，接收机或两者中生成。

6. 发明申请

WO2005104398A1 METHOD AND APPARATUS FOR TRANSMITTING INPUT STREAM OF DATA SYMBOLS IN MULTIPLE-INPUT/MULTIPLE-OUTPUT WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：用于在多输入/多输出无线通信系统中传输数据符号输入流的方法和装置
公开(公告)号：WO2005104398A1
公开(公告)日：2005-11-03
申请号：PCT/JP2005/007665
申请日：2005-04-15
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , MEHTA, Neelesh, B. , SUDARSHAN, Pallav , MOLISCH, Andreas, F. , ZHANG, Jinyun
发明人： MEHTA, Neelesh, B. , SUDARSHAN, Pallav , MOLISCH, Andreas, F. , ZHANG, Jinyun
IPC分类号： H04B7/06
CPC分类号： H04B7/0667 , H04B7/061 , H04B7/0669 , H04B7/0673 , H04B7/0686 , H04B7/0691 , H04B7/0697 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0618
摘要： A method transmits an input stream of data symbols in a multiple-input, multiple-output wireless communications system. The input stream is demultiplexed into M substreams. Each of the M substreams is adaptively modulated and coded to a coded substream according to channel conditions. A first of the M coded substreams is space-time transmit diversity encoding into two space-time transmit diversity encoded substreams. There is one space-time transmit diversity encoded substream for each one of two transmit antennas. Each other coded substream is transmitted directly by a corresponding one of remaining M-1 transmit antenna.
摘要翻译：一种方法在多输入多输出无线通信系统中传输数据符号的输入流。输入流被解复用为M个子流。根据信道条件，M个子流中的每一个被自适应地调制并编码成编码子流。 M个编码子流中的第一个是时空发射分集编码成两个时空发射分集编码子流。对于两个发射天线中的每一个，存在一个时空发射分集编码子流。每个其他编码子流由剩余的M-1发射天线中的对应的一个直接传输。

7. 发明申请

WO2005104397A1 METHOD AND SYSTEM FOR TRANSMITTING INPUT STREAM OF SYMBOLS IN MULTIPLE-INPUT / MULTIPLE-OUTPUT WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：用于在多输入/多输出无线通信系统中传输符号输入流的方法和系统
公开(公告)号：WO2005104397A1
公开(公告)日：2005-11-03
申请号：PCT/JP2005/007664
申请日：2005-04-15
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , MEHTA, Neelesh, B. , SUDARSHAN, Pallav , MOLISCH, Andreas, F. , ZHANG, Jinyun
发明人： MEHTA, Neelesh, B. , SUDARSHAN, Pallav , MOLISCH, Andreas, F. , ZHANG, Jinyun
IPC分类号： H04B7/06
CPC分类号： H04B7/061 , H04B7/0669 , H04B7/0673 , H04B7/0691 , H04B7/0697 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0618
摘要： A method and system transmits an input stream of data symbols in a multiple-input / multiple-output wireless communications system that includes M subgroups of transmitting antennas. A stream of data symbols is provided to a combined switch and demultiplexer. The combined switch and demultiplexer selects a subset L of the M subgroups of antennas as active, where L
摘要翻译：方法和系统在包括发送天线的M个子组的多输入/多输出无线通信系统中发送数据符号的输入流。将数据符号流提供给组合开关和解复用器。组合的开关和解复用器选择M个子天线组的子集L为有效，其中L

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