专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US08098776B2 Method and system for pre-equalization in a single weight spatial multiplexing MIMO system 有权
标题翻译：在单一加权空间复用MIMO系统中预均衡的方法和系统
公开(公告)号：US08098776B2
公开(公告)日：2012-01-17
申请号：US11173727
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter Van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter Van Rooyen , Pieter Roux
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08
CPC分类号： H04B7/0417 , H04B7/0697 , H04L1/0656 , H04L25/0204 , H04L25/0214 , H04L25/0244 , H04L25/025 , H04L25/03019 , H04L25/03343 , H04L2025/03426 , H04L2025/03726 , H04L2025/03808
摘要： Certain aspects of the method may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas at a base station. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of spatially multiplexed communication signals. A plurality of pre-equalization weights may be generated based on the generated plurality of vectors of baseband combined channel estimates. The received plurality of spatially multiplexed communication signals may be modified based on the generated plurality of pre-equalization weights. At least a portion of the generated plurality of pre-equalization weights may be fed back to the base station for modifying subsequently transmitted spatially multiplexed communication signals which are transmitted from at least a portion of the plurality of transmit antennas at the base station.
摘要翻译：该方法的某些方面可以包括在基站处从多个发射天线接收多个空间复用的通信信号。可以基于所接收的多个空间复用通信信号的相位旋转来生成基带组合信道估计的多个向量。可以基于所生成的多个基带组合信道估计向量来生成多个预均衡权重。可以基于所生成的多个预均衡权重来修改所接收的多个空间复用的通信信号。所生成的多个预均衡权重中的至少一部分可以反馈给基站，以便修改在基站处从多个发射天线的至少一部分发送的随后发送的空间复用的通信信号。

62. 发明授权

US07593493B2 Method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system 有权
标题翻译：在单加权（SW）单通道（SC）多输入多输出（MIMO）系统中预均衡的方法和系统
公开(公告)号：US07593493B2
公开(公告)日：2009-09-22
申请号：US11172702
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G. W. van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G. W. van Rooyen , Pieter Roux
IPC分类号： H04B1/10
CPC分类号： H04L25/03343 , H04B1/7097 , H04B7/0634 , H04B7/0848 , H04B2201/709709 , H04L25/0204 , H04L25/0214 , H04L25/0244 , H04L25/025 , H04L25/03019 , H04L2025/03426 , H04L2025/03726 , H04L2025/03808
摘要： In wireless systems, a method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from at least two transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from baseband combined channel estimates. Channel weights may be determined to modify the signals received by the additional receive antennas. Pre-equalization weight parameters may be determined to modify subsequent signals transmitted from the transmit antennas. The pre-equalization weight parameters may be based on the propagation channel estimates and may be determined by LMS, RLS, DMI, or by minimizing a cost function. Closed loop transmit diversity may also be supported.
摘要翻译：在无线系统中，提供了在单加权（SW）单通道（SC）多输入多输出（MIMO）系统中预均衡的方法和系统。第一接收天线和至少一个另外的接收天线可以接收从至少两个发射天线发射的多个SC通信信号。可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。可以确定信道权重以修改由附加接收天线接收的信号。可以确定预均衡权重参数以修改从发射天线发射的后续信号。预均衡权重参数可以基于传播信道估计，并且可以由LMS，RLS，DMI或通过最小化成本函数来确定。也可以支持闭环发射分集。

63. 发明授权

US07885288B2 Method and system for channel estimation in a single channel (SC) multiple-input multiple-output (MIMO) system comprising two-transmit (2-TX) and multiple-receive (M-RX) antennas for WCDMA/HSDPA) 有权
标题翻译：包括用于WCDMA / HSDPA的双发（2-TX）和多接收（M-RX）天线的单通道（SC）多输入多输出（MIMO）系统中的信道估计方法和系统）
公开(公告)号：US07885288B2
公开(公告)日：2011-02-08
申请号：US12343955
申请日：2008-12-24
申请人： Mark Kent , Vinko Erceg , Uri M Landau , Pieter G.W. van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M Landau , Pieter G.W. van Rooyen , Pieter Roux
IPC分类号： H04J15/00
CPC分类号： H04B7/0848 , H04B7/0634 , H04L1/0003 , H04L1/1845 , H04L25/0204 , H04L25/0212
摘要： In a wireless system, a method and system for channel estimation in a single channel MIMO system comprising two-transmit and multiple-receive antennas for WCDMA/HSDPA are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from a first and an additional transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from a baseband combined channel estimate. The integration time may be based on channel estimation accuracy and wireless modem performance. The signals received in the additional receive antennas may be multiplied by a rotation waveform to achieve channel orthogonality. The rotation waveform's amplitude and phase components may be modified based on the channel estimates. Rotation of the received signals in the additional receive antennas may be continuous or periodic.
摘要翻译：在无线系统中，提供了一种包括用于WCDMA / HSDPA的双发和多接收天线的单信道MIMO系统中信道估计的方法和系统。第一接收天线和至少一个另外的接收天线可以接收从第一和另外的发射天线发射的多个SC通信信号。可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。积分时间可以基于信道估计精度和无线调制解调器性能。在附加接收天线中接收的信号可以乘以旋转波形以实现信道正交性。可以基于信道估计来修改旋转波形的幅度和相位分量。接收信号在附加接收天线中的旋转可以是连续的或周期性的。

64. 发明授权

US07471694B2 Method and system for channel estimation in a single channel (SC) multiple-input multiple-output (MIMO) system comprising two-transmit (2-Tx) and multiple-receive (M-RX) antennas for WCDMA/HSDPA 有权
标题翻译：包括用于WCDMA / HSDPA的双发（2-Tx）和多接收（M-RX）天线的单通道（SC）多输入多输出（MIMO）系统中的信道估计方法和系统
公开(公告)号：US07471694B2
公开(公告)日：2008-12-30
申请号：US11173252
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G. W. van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G. W. van Rooyen , Pieter Roux
IPC分类号： H04J15/00
CPC分类号： H04B7/0848 , H04B7/0634 , H04L1/0003 , H04L1/1845 , H04L25/0204 , H04L25/0212
摘要： In a wireless system, a method and system for channel estimation in a single channel MIMO system comprising two-transmit and multiple-receive antennas for WCDMA/HSDPA are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from a first and an additional transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from a baseband combined channel estimate. The integration time may be based on channel estimation accuracy and wireless modem performance. The signals received in the additional receive antennas may be multiplied by a rotation waveform to achieve channel orthogonality. The rotation waveform's amplitude and phase components may be modified based on the channel estimates. Rotation of the received signals in the additional receive antennas may be continuous or periodic.
摘要翻译：在无线系统中，提供了一种包括用于WCDMA / HSDPA的双发和多接收天线的单信道MIMO系统中信道估计的方法和系统。第一接收天线和至少一个另外的接收天线可以接收从第一和另外的发射天线发射的多个SC通信信号。可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。积分时间可以基于信道估计精度和无线调制解调器性能。在附加接收天线中接收的信号可以乘以旋转波形以实现信道正交性。可以基于信道估计来修改旋转波形的幅度和相位分量。接收信号在附加接收天线中的旋转可以是连续的或周期性的。

65. 发明授权

US08331469B2 Method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system 有权
标题翻译：在单加权（SW）单通道（SC）多输入多输出（MIMO）系统中预均衡的方法和系统
公开(公告)号：US08331469B2
公开(公告)日：2012-12-11
申请号：US12564681
申请日：2009-09-22
申请人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G.W. van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G.W. van Rooyen , Pieter Roux
IPC分类号： H04L27/28
CPC分类号： H04L25/03343 , H04B1/7097 , H04B7/0634 , H04B7/0848 , H04B2201/709709 , H04L25/0204 , H04L25/0214 , H04L25/0244 , H04L25/025 , H04L25/03019 , H04L2025/03426 , H04L2025/03726 , H04L2025/03808
摘要： In wireless systems, a method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from at least two transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from baseband combined channel estimates. Channel weights may be determined to modify the signals received by the additional receive antennas. Pre-equalization weight parameters may be determined to modify subsequent signals transmitted from the transmit antennas. The pre-equalization weight parameters may be based on the propagation channel estimates and may be determined by LMS, RLS, DMI, or by minimizing a cost function. Closed loop transmit diversity may also be supported.
摘要翻译：在无线系统中，提供了在单加权（SW）单通道（SC）多输入多输出（MIMO）系统中预均衡的方法和系统。第一接收天线和至少一个另外的接收天线可以接收从至少两个发射天线发射的多个SC通信信号。可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。可以确定信道权重以修改由附加接收天线接收的信号。可以确定预均衡权重参数以修改从发射天线发射的后续信号。预均衡权重参数可以基于传播信道估计，并且可以由LMS，RLS，DMI或通过最小化成本函数来确定。也可以支持闭环发射分集。

66. 发明申请

US20100008437A1 Method and System for Pre-Equalization in a Single Weight (SW) Single Channel (SC) Multiple-Input Multiple-Output (MIMO) System 有权
标题翻译：单重（SW）单通道（SC）多输入多输出（MIMO）系统中前置均衡的方法和系统
公开(公告)号：US20100008437A1
公开(公告)日：2010-01-14
申请号：US12564681
申请日：2009-09-22
申请人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G.W. van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G.W. van Rooyen , Pieter Roux
IPC分类号： H04L27/28
CPC分类号： H04L25/03343 , H04B1/7097 , H04B7/0634 , H04B7/0848 , H04B2201/709709 , H04L25/0204 , H04L25/0214 , H04L25/0244 , H04L25/025 , H04L25/03019 , H04L2025/03426 , H04L2025/03726 , H04L2025/03808
摘要： In wireless systems, a method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from at least two transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from baseband combined channel estimates. Channel weights may be determined to modify the signals received by the additional receive antennas. Pre-equalization weight parameters may be determined to modify subsequent signals transmitted from the transmit antennas. The pre-equalization weight parameters may be based on the propagation channel estimates and may be determined by LMS, RLS, DMI, or by minimizing a cost function. Closed loop transmit diversity may also be supported.
摘要翻译：在无线系统中，提供了在单加权（SW）单通道（SC）多输入多输出（MIMO）系统中预均衡的方法和系统。第一接收天线和至少一个另外的接收天线可以接收从至少两个发射天线发射的多个SC通信信号。可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。可以确定信道权重以修改由附加接收天线接收的信号。可以确定预均衡权重参数以修改从发射天线发射的后续信号。预均衡权重参数可以基于传播信道估计，并且可以由LMS，RLS，DMI或通过最小化成本函数来确定。也可以支持闭环发射分集。

67. 发明申请

US20090161690A1 Method and System for Channel Estimation in a Single Channel (SC) Multiple-Input Multiple-Output (MIMO) System Comprising Two-Transmit (2-TX) and Multiple-Receive (M-RX) Antennas for WCDMA/HSDPA) 有权
标题翻译：包含WCDMA / HSDPA双发（2-TX）和多接收（M-RX）天线的单通道（SC）多输入多输出（MIMO）系统中信道估计的方法和系统）
公开(公告)号：US20090161690A1
公开(公告)日：2009-06-25
申请号：US12343955
申请日：2008-12-24
申请人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G.W. van Rooyen , Pieter Roux
发明人： Mark Kent , Vinko Erceg , Uri M. Landau , Pieter G.W. van Rooyen , Pieter Roux
IPC分类号： H04J3/00
CPC分类号： H04B7/0848 , H04B7/0634 , H04L1/0003 , H04L1/1845 , H04L25/0204 , H04L25/0212
摘要： In a wireless system, a method and system for channel estimation in a single channel MIMO system comprising two-transmit and multiple-receive antennas for WCDMA/HSDPA are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from a first and an additional transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from a baseband combined channel estimate. The integration time may be based on channel estimation accuracy and wireless modem performance. The signals received in the additional receive antennas may be multiplied by a rotation waveform to achieve channel orthogonality. The rotation waveform's amplitude and phase components may be modified based on the channel estimates. Rotation of the received signals in the additional receive antennas may be continuous or periodic.
摘要翻译：在无线系统中，提供了一种包括用于WCDMA / HSDPA的双发和多接收天线的单信道MIMO系统中信道估计的方法和系统。第一接收天线和至少一个另外的接收天线可以接收从第一和另外的发射天线发射的多个SC通信信号。可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。积分时间可以基于信道估计精度和无线调制解调器性能。在附加接收天线中接收的信号可以乘以旋转波形以实现信道正交性。可以基于信道估计来修改旋转波形的幅度和相位分量。接收信号在附加接收天线中的旋转可以是连续的或周期性的。

68. 发明申请

US20060072514A1 Method and system for single weight (SW) antenna system for spatial multiplexing (SM) MIMO system for WCDMA/HSDPA 有权
公开(公告)号：US20060072514A1
公开(公告)日：2006-04-06
申请号：US11174067
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceq , Uri Landau , Pieter Rooyen
发明人： Mark Kent , Vinko Erceq , Uri Landau , Pieter Rooyen
IPC分类号： H04J1/00 , H04B7/216 , H04Q7/00
CPC分类号： H04B7/0413 , H04B7/0842
摘要： Methods and systems for processing signals in a receiver are disclosed herein and may comprise receiving spatially multiplexed signals via M receive antennas. A plurality of multiple data streams may be separated in the received spatially multiplexed signals to detect MIMO data streams. Each of the MIMO data streams may correspond to a spatially multiplexed input signal. Complex phase and/or amplitude may be estimated for each detected MIMO data streams utilizing (M-1) phase shifters. Complex waveforms, comprising in-phase (I) and quadrature (Q) components for the MIMO data streams within the received spatially multiplexed signals may be processed and the processed complex waveforms may be filtered to generate baseband bandwidth limited signals. Phase and/or amplitude for one or more received spatially multiplexed signals may be adjusted utilizing the estimated complex phase and amplitude. Phase and/or amplitude may be adjusted continuously and/or at discrete intervals.

69. 发明授权

US09356674B2 Method and system for using non-uniform channel quantization for a feedback-based communication system 有权
标题翻译：用于基于反馈的通信系统使用非均匀信道量化的方法和系统
公开(公告)号：US09356674B2
公开(公告)日：2016-05-31
申请号：US12652150
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B17/00 , H04B7/06 , H04B7/04 , H04L1/00 , H04L25/02
CPC分类号： H04B7/0626 , H04B7/0417 , H04L1/0026 , H04L1/003 , H04L25/0202
摘要： A mobile device estimates channel state information (CSI) comprising, for example, CQI and/or SNR, for a downlink channel. The estimated CSI is non-uniformly quantized and transmitted to the base station over a finite-rate feedback channel. Different portions of the estimated CSI are quantized using different quantization step sizes, which are determined according to a performance metric function such as a channel capacity function of the estimated CSI. A quantization step size for a portion of the estimated CSI is increased if a low distribution probability is indicated by the portion of the estimated CSI. A quantization step size for a portion of the estimated CSI is decreased if a high distribution probability is indicated. The mobile device quantizes the estimated CSI using the determined quantization step sizes to transmit to the base station over the finite-rate feedback channel. Downlink data transmission is received according to the transmitted CSI.
摘要翻译：移动设备针对下行链路信道估计包括例如CQI和/或SNR的信道状态信息（CSI）。估计的CSI被不均匀地量化，并通过有限速率反馈信道发送到基站。使用不同的量化步长量化估计的CSI的不同部分，这些量化步长根据诸如估计的CSI的信道容量函数的性能度量功能来确定。如果估计的CSI的部分指示低分布概率，则估计的CSI的一部分的量化步长增加。如果指示高分配概率，则估计CSI的一部分的量化步长减小。移动设备使用确定的量化步长量化估计的CSI，以便通过有限速率反馈信道向基站发送。根据发送的CSI接收下行链路数据传输。

70. 发明授权

US09344902B2 Method and system for evaluating deployment of femtocells as part of a cellular network 有权
标题翻译：用于评估作为蜂窝网络的一部分的毫微微小区部署的方法和系统
公开(公告)号：US09344902B2
公开(公告)日：2016-05-17
申请号：US12474606
申请日：2009-05-29
申请人： Charles Abraham , Xuemin Chen , Wael William Diab , Vinko Erceg , Victor Hou , Jeyhan Karaoguz , Mark Kent
发明人： Charles Abraham , Xuemin Chen , Wael William Diab , Vinko Erceg , Victor Hou , Jeyhan Karaoguz , Mark Kent
IPC分类号： H04W40/00 , H04W24/02 , H04W84/04
CPC分类号： H04W24/02 , H04W16/18 , H04W84/045
摘要： Aspects of a method and system for evaluating deployment of femtocells as part of a cellular network are provided. In this regard, a communication device may be operable to communicate information to a femtocell management entity that may be utilized to determine whether a specified location is suitable for installation of a femtocell. The communication device may be operable to receive from the femtocell management entity, data that indicates whether the specified location is suitable for the installation of the femtocell. The femtocell management entity may utilize the communicated information and/or additional information associated with one or installed femtocells, and/or one or more other communication devices that are within a vicinity of the specified location to determine whether the specified location is suitable for installation of the femtocell.
摘要翻译：提供了用于评估作为蜂窝网络的一部分的毫微微小区部署的方法和系统的方面。在这方面，通信设备可以用于向可以用于确定指定位置是否适合于安装毫微微小区的毫微微小区管理实体传送信息。通信设备可以用于从毫微微小区管理实体接收指示指定位置是否适合于安装毫微微小区的数据。毫微微小区管理实体可以使用所传送的信息和/或与一个或所安装的毫微微小区相关联的附加信息，和/或在指定位置附近的一个或多个其他通信设备来确定指定位置是否适于安装毫微微蜂窝。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式