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1.发明授权Techniques for estimating received signal strength and carrier to interference and noise ratio in OFDM systems 有权用于估计OFDM系统中的接收信号强度和载波与干扰和噪声比的技术公开(公告)号：US07912113B2
公开(公告)日：2011-03-22
申请号：US11867802
申请日：2007-10-05
IPC分类号： H04L27/30
CPC分类号： H04B17/336 , H04B17/318
摘要： A technique for determining a received signal strength indicator of a target base station at a subscriber station includes performing a discrete Fourier transform on a received signal to provide a transformed signal. In this case, the transformed signal occupies one or more segments of a channel and the one or more segments each include multiple subcarriers. A shift-n cross-correlation is calculated based on the transformed signal and a preamble sequence of the target base station to provide a coarse received signal strength indicator for the target base station.
摘要翻译： 用于确定用户站处的目标基站的接收信号强度指示符的技术包括对接收到的信号执行离散付里叶变换以提供经变换的信号。 在这种情况下，变换的信号占用信道的一个或多个段，并且一个或多个段各自包括多个子载波。 基于变换的信号和目标基站的前导序列来计算移位n互相关，以为目标基站提供粗略的接收信号强度指示符。
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2.发明申请Techniques for Estimating Received Signal Strength and Carrier to Interference and Noise Ratio in OFDM Systems 有权OFDM系统中估计接收信号强度和载波干扰和噪声比的技术公开(公告)号：US20090092178A1
公开(公告)日：2009-04-09
申请号：US11867802
申请日：2007-10-05
IPC分类号： H04B17/00
CPC分类号： H04B17/336 , H04B17/318
摘要： A technique for determining a received signal strength indicator of a target base station at a subscriber station includes performing a discrete Fourier transform on a received signal to provide a transformed signal. In this case, the transformed signal occupies one or more segments of a channel and the one or more segments each include multiple subcarriers. A shift-n cross-correlation is calculated based on the transformed signal and a preamble sequence of the target base station to provide a coarse received signal strength indicator for the target base station.
摘要翻译： 用于确定用户站处的目标基站的接收信号强度指示符的技术包括对接收到的信号执行离散付里叶变换以提供经变换的信号。 在这种情况下，变换的信号占用信道的一个或多个段，并且一个或多个段各自包括多个子载波。 基于变换的信号和目标基站的前导序列来计算移位n互相关，以为目标基站提供粗略的接收信号强度指示符。
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3.发明申请Configurable Spatial Channel Information Feedback in Wireless Communication System 有权无线通信系统中可配置的空间信道信息反馈公开(公告)号：US20110085610A1
公开(公告)日：2011-04-14
申请号：US12577553
申请日：2009-10-12
IPC分类号： H04L27/28
CPC分类号： H04B7/0626 , H04B7/0639 , H04L5/0037
摘要： A method for configurable spatial channel information feedback in wireless communication systems is disclosed including receiving, at the wireless communication device, transmission from a plurality of antennas, receiving an indication of a feedback mode for feeding back spatial channel information that is based on correlations among at least some of the plurality of antennas, decomposing a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two Kronecker components, and feeding back parameters representative of the Kronecker components according to the feedback mode indicated.
摘要翻译： 公开了一种用于无线通信系统中的可配置的空间信道信息反馈的方法，包括在无线通信设备处接收来自多个天线的传输，接收用于反馈空间信道信息的反馈模式的指示，所述反馈模式基于在 所述多个天线中的至少一部分，将表示所述多个天线中的至少一些的所述相关性的相关矩阵分解为至少两个克罗内克分量，以及根据所指示的反馈模式反馈表示所述克罗内克分量的参数。
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4.发明申请Method and Apparatus for Interference Cancellation in a Wireless Communication System 审中-公开无线通信系统中干扰消除的方法和装置公开(公告)号：US20090280747A1
公开(公告)日：2009-11-12
申请号：US12116582
申请日：2008-05-07
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 a correction factor by 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 an assigned data allocation in the data zone. Using the correction factor, the mobile device updates outdated interference information. The mobile device cancels interference in the received signal distorted by co-channel interference by using the updated interference information. Also, the mobile device is 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。 对于一个干扰消除算法，移动设备通过在数据区域中的分配的数据分配中估计多普勒速度和诸如前导码符号的第一时间间隔和第二时间间隔之间的时间差，像任何感兴趣的符号， 。 使用校正因子，移动设备更新过时的干扰信息。 移动设备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的干扰。 此外，移动设备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。
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公开(公告)号：US08422411B2
公开(公告)日：2013-04-16
申请号：US11868526
申请日：2007-10-07
CPC分类号： H04B7/2656
摘要： A wireless communication system frame structure configurable to serve to half-duplex user terminals or a mixture of half-duplex and full-duplex user terminals based on a grouping of the user terminals according to one or more criteria. In one embodiment, user terminals are switched from one group to another. A user terminal signaling mechanism is also provided.
摘要翻译： 一种无线通信系统帧结构，其可配置为根据一个或多个标准，基于用户终端的分组来服务于半双工用户终端或半双工和全双工用户终端的混合。 在一个实施例中，用户终端从一组切换到另一组。 还提供了一种用户终端信令机制。
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6.发明授权Apparatus and method for communicating and processing a reference signal based on an identifier associated with a base station 有权用于基于与基站相关联的标识符来传送和处理参考信号的装置和方法公开(公告)号：US08165586B2
公开(公告)日：2012-04-24
申请号：US13040090
申请日：2011-03-03
申请人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
发明人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
IPC分类号： H04B7/212
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0091
摘要： A base station, which includes a processor and a transmitter, communicates a reference signal to wireless communication devices in a wireless communication system. The processor encodes the reference signal into a first set of transmission resources, encodes other information into a second set of transmission resources, and multiplexes the two sets of transmission resources into a subframe, such that the first set of transmission resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of transmission resources is multiplexed into a second set of OFDM symbols. The transmitter transmits the subframe to the wireless devices. According to one embodiment, transmission resources for carrying the reference signal may be allocated according to a predetermined allocation, a semi-static allocation, a dynamic allocation, and/or an allocation based on higher layer signaling.
摘要翻译： 包括处理器和发射机的基站将参考信号传送到无线通信系统中的无线通信设备。 处理器将参考信号编码为第一组传输资源，将其他信息编码为第二组传输资源，并将两组传输资源复用为子帧，使得第一组传输资源至少被多路复用 基于与基站和第二组传输资源相关联的标识符的第一组正交频分复用（OFDM）符号的一部分被多路复用到第二组OFDM符号中。 发射机将子帧发送到无线设备。 根据一个实施例，可以根据预定分配，半静态分配，动态分配和/或基于较高层信令的分配来分配用于承载参考信号的传输资源。
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公开(公告)号：US20100110964A1
公开(公告)日：2010-05-06
申请号：US12610962
申请日：2009-11-02
CPC分类号： H04W72/1278 , H04W84/047
摘要： A relay design backward compatible with existing wireless communication networks. The invention provides details of apparatus and methods to enable operation of inband relays. Using a grant-based inhibit mechanism, a Relay and an eNB can efficiently cooperate to improve the performance by allowing one of either UE or the Relay to transmit on the uplink. Similarly, the UE overrides any pre-determined schedule (i.e., absence of Reference Signals) by searching for a scheduling grant and if the UE find the scheduling grant, the UE can assume that the Relay has overridden the pre-determined schedule temporarily.
摘要翻译： 继电器设计向后兼容现有的无线通信网络。 本发明提供了能够使带内继电器工作的装置和方法的细节。 使用基于授权的禁止机制，中继和eNB可以通过允许UE或中继中的一个在上行链路上进行发送来高效地协作以提高性能。 类似地，UE通过搜索调度许可来覆盖任何预定的调度（即，不存在参考信号），并且如果UE找到调度许可，则UE可以假设中继已临时覆盖预定调度。
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公开(公告)号：US08934417B2
公开(公告)日：2015-01-13
申请号：US12405046
申请日：2009-03-16
申请人： Ravikiran Nory , Ravi Kuchibhotla , Robert T. Love , Vijay Nangia , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
发明人： Ravikiran Nory , Ravi Kuchibhotla , Robert T. Love , Vijay Nangia , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
CPC分类号： H04W72/1289 , H04W72/042
摘要： A wireless communication terminal including a controller coupled to a transceiver, configured to receive a first and second control messages on an anchor carrier is disclosed. The first control message includes a resource assignment for the anchor carrier and the second control message is associated with a set of component carriers that are distinct from the anchor carrier. The controller determines a resource assignment for at least one component carrier in the set of component carriers using both the first and the second control messages.
摘要翻译： 公开了一种无线通信终端，包括耦合到收发器的控制器，被配置为在锚定载波上接收第一和第二控制消息。 第一控制消息包括用于锚定载波的资源分配，并且第二控制消息与不同于锚定载波的一组分量载波相关联。 控制器使用第一和第二控制消息来确定分组载波集合中的至少一个分量载波的资源分配。
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9.发明授权Apparatus and method for communicating and processing a reference signal based on an identifier associated with a base station 有权用于基于与基站相关联的标识符来传送和处理参考信号的装置和方法公开(公告)号：US08396047B2
公开(公告)日：2013-03-12
申请号：US13040109
申请日：2011-03-03
申请人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
发明人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
IPC分类号： H04W40/00
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0091
摘要： A wireless communication device receives at least a section of a subframe from a base station in a wireless communication system. The subframe includes transmission resources multiplexed onto subcarriers of orthogonal frequency division multiplexed (OFDM) symbols. A first set of OFDM symbols includes a reference signal and at least a second set of OFDM symbols includes information other than the reference signal (e.g., channel-coded data). The wireless device determines which OFDM symbols of the subframe constitute the first set of OFDM symbols based on an identifier associated with a base station that transmitted the subframe. The wireless device may then process the reference signal from the OFDM symbols that are determined to be the first set of OFDM symbols. The wireless device may also determine which OFDM symbols of the subframe constitute the second set of OFDM symbols and process non-reference signal information from OFDM symbols of the second set.
摘要翻译： 无线通信设备从无线通信系统中的基站接收子帧的至少一部分。 子帧包括复用到正交频分复用（OFDM）符号的子载波上的传输资源。 第一组OFDM符号包括参考信号，并且至少第二组OFDM符号包括除参考信号之外的信息（例如，信道编码数据）。 无线设备基于与发送子帧的基站相关联的标识符来确定子帧的哪些OFDM符号构成第一组OFDM符号。 无线设备然后可以处理来自被确定为第一组OFDM符号的OFDM符号的参考信号。 无线设备还可以确定子帧的哪些OFDM符号构成第二组OFDM符号，并且从第二组的OFDM符号处理非参考信号信息。
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10.发明授权Apparatus and method for communicating and processing a positioning reference signal based on identifier associated with a base station 有权基于与基站相关联的标识符来传送和处理定位参考信号的设备和方法公开(公告)号：US07940740B2
公开(公告)日：2011-05-10
申请号：US12365166
申请日：2009-02-03
申请人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
发明人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0091
摘要： A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols, and transmitting the subframe. Upon receiving the subframe, a wireless device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.
摘要翻译： 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号，并且发送子帧。 在接收到子帧时，无线设备基于与发送子帧的基站相关联的标识符来确定哪个传输资源集合包含PRS，并且处理包含PRS的资源集合以估计定时（例如，到达时间）信息 。
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