专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07466667B2 Adaptive packet detection for detecting packets in a wireless medium 有权
标题翻译：用于检测无线介质中的分组的自适应分组检测
公开(公告)号：US07466667B2
公开(公告)日：2008-12-16
申请号：US11064761
申请日：2005-02-22
申请人： Vincent K. Jones, IV , Partho Mishra , Geert Arnout Awater , D. J. Richard van Nee , Arnold Liu , Brian Leslie Wong
发明人： Vincent K. Jones, IV , Partho Mishra , Geert Arnout Awater , D. J. Richard van Nee , Arnold Liu , Brian Leslie Wong
IPC分类号： H04B7/005 , H04J3/16 , H04J3/22
CPC分类号： H04L1/0045 , H04W24/00 , H04W28/16 , H04W88/02
摘要： In a packet detector, one or more tests are performed for packet detection according to packet detection parameters associated with the one or more tests, a rate of false detection is measured, and the packet detection parameters are adjusted accordingly to reduce the rate of false detection. The rate of false detection might be determined by analyzing post-detection and processing of a signal deemed to be a signal representing a packet for a failure of decoding indicative of a false detection. Such analysis might include testing for a failed SFD search, training symbol anomalies, poor conditioning of metrics used to determine frequency offset and OFDM timing, incorrect data fields, or the like.
摘要翻译：在分组检测器中，根据与一个或多个测试相关联的分组检测参数，对分组检测执行一个或多个测试，测量错误检测率，并相应地调整分组检测参数以降低错误检测率。可以通过分析被认为是表示用于指示错误检测的解码失败的分组的信号的信号的后检测和处理来确定错误检测的速率。这种分析可能包括测试失败的SFD搜索，训练符号异常，用于确定频率偏移和OFDM定时的度量的不良调节，不正确的数据字段等。

2. 发明授权

US07561646B2 Multi-antenna wireless receiver chains with vector decoding 有权
标题翻译：多天线无线接收机链与矢量解码
公开(公告)号：US07561646B2
公开(公告)日：2009-07-14
申请号：US11565479
申请日：2006-11-30
申请人： Gregory C. Steele , D. J. Richard van Nee , Vincent K. Jones, IV , James Gardner , Geert Arnout Awater
发明人： Gregory C. Steele , D. J. Richard van Nee , Vincent K. Jones, IV , James Gardner , Geert Arnout Awater
IPC分类号： H04B7/10 , H04B7/216
CPC分类号： H04B7/0842 , H04B1/707 , H04B7/0848 , H04L23/02 , H04L25/023 , H04L27/227 , H04L2027/0059 , H04L2027/0067
摘要： A receiver chain is provided for use in wireless data communication including a plurality of receive antennas and a vector Barker decoder or a CCK decoder. The vector Barker decoder operates on the plurality of received signals, preferably processed through a plurality of channel matched filters. The weightings of the plurality of channels can be done using a slicer variance, a PLL variance or another method.
摘要翻译：提供接收机链，用于包括多个接收天线和向量巴克解码器或CCK解码器的无线数据通信。向量Barker解码器对多个接收信号进行操作，优选地通过多个信道匹配滤波器进行处理。多个信道的加权可以使用限幅器方差，PLL方差或另一种方法来完成。

3. 发明授权

US08462867B2 Near soft-output maximum-likelihood detection for multiple-input multiple-output systems 有权
标题翻译：多输入多输出系统的近似软输出最大似然检测
公开(公告)号：US08462867B2
公开(公告)日：2013-06-11
申请号：US11849025
申请日：2007-08-31
申请人： Albert van Zelst , Brian Wong , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
发明人： Albert van Zelst , Brian Wong , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
IPC分类号： H04L5/12
CPC分类号： H04L25/0204 , H04L1/0048 , H04L1/06 , H04L25/0242 , H04L25/0246 , H04L25/067 , H04L27/2601
摘要： Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).
摘要翻译：描述了为MIMO通信系统提供低复杂度软输出检测的系统和方法。可以在每个空间流的一组星座点上执行循环，以获得一系列发射流中的每一个的距离度量，对于其可以使用MIMO信道矩阵和次优MIMO算法来估计其他发送流的值。可以使用的MIMO算法的示例包括每流列表检测（PSLD），格子减少检测（LRD）和引导M算法。通过预处理MIMO信道矩阵和/或通过利用用于增强度量使用（EMU）的技术，可以进一步改善性能。

4. 发明授权

US07418050B1 MIMO modulation in a wireless network with at least one degenerate node 失效
标题翻译：具有至少一个退化节点的无线网络中的MIMO调制
公开(公告)号：US07418050B1
公开(公告)日：2008-08-26
申请号：US10376347
申请日：2003-02-26
申请人： James Gardner , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
发明人： James Gardner , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
IPC分类号： H04L27/28
CPC分类号： H04B7/0697 , H04L25/0206 , H04L25/0224
摘要： MIMO modulation is supported in a wireless network with at least one degenerate node. A transmitter separates data into multiple streams for modulation. To transmit the modulated data, the transmitter uses a separate antenna for each data stream or coherently combines the modulated data streams prior to transmission via fewer antenna than modulated data streams. In either case, the received signal includes a contribution from each data stream. A receiver is configured for processing multiple signals sent in parallel from multiple transmit antennas; thus, the operation of the receiver is unaffected by whether the multiple data streams of the transmitter were combined in the channel after transmission or in whole or part in the transmitter prior to transmission.
摘要翻译：在具有至少一个退化节点的无线网络中支持MIMO调制。发射机将数据分离成多个流进行调制。为了发送调制数据，发射机为每个数据流使用单独的天线，或者通过比调制的数据流更少的天线在传输之前相干地组合经调制的数据流。在任一情况下，所接收的信号包括来自每个数据流的贡献。接收机被配置为处理从多个发射天线并行发送的多个信号; 因此，接收机的操作不受传输之前的信道中的发送器的多个数据流是否被组合，或者在发送之前是整个或部分发送器中的组合。

5. 发明授权

US07161996B1 Multi-antenna wireless receiver chains with vector decoding 有权
标题翻译：多天线无线接收机链与矢量解码
公开(公告)号：US07161996B1
公开(公告)日：2007-01-09
申请号：US10376079
申请日：2003-02-26
申请人： Gregory C. Steele , D. J. Richard van Nee , Vincent K. Jones, IV , James Gardner , Geert Arnout Awater
发明人： Gregory C. Steele , D. J. Richard van Nee , Vincent K. Jones, IV , James Gardner , Geert Arnout Awater
IPC分类号： H04B7/10 , H04B1/69 , H04B7/212 , H04B7/216 , H03H7/30
CPC分类号： H04B7/0842 , H04B1/707 , H04B7/0848 , H04L23/02 , H04L25/023 , H04L27/227 , H04L2027/0059 , H04L2027/0067
摘要： A receiver chain is provided for use in wireless data communication including a plurality of receive antennas and a vector Barker decoder or a CCK decoder. The vector Barker decoder operates on the plurality of received signals, preferably processed through a plurality of channel matched filters. The weightings of the plurality of channels can be done using a slicer variance, a PLL variance or another method.
摘要翻译：提供接收机链，用于包括多个接收天线和向量巴克解码器或CCK解码器的无线数据通信。向量Barker解码器对多个接收信号进行操作，优选地通过多个信道匹配滤波器进行处理。多个信道的加权可以使用限幅器方差，PLL方差或另一种方法来完成。

6. 发明申请

US20070248199A1 Multi-Antenna Wireless Receiver Chains With Vector Decoding 有权
标题翻译：多天线无线接收链与矢量解码
公开(公告)号：US20070248199A1
公开(公告)日：2007-10-25
申请号：US11565479
申请日：2006-11-30
申请人： Gregory Steele , D. J. Richard van Nee , Vincent Jones , James Gardner , Geert Arnout Awater , D. Richard van Nee
发明人： Gregory Steele , D. J. Richard van Nee , Vincent Jones , James Gardner , Geert Arnout Awater , D. Richard van Nee
IPC分类号： H04B7/10
CPC分类号： H04B7/0842 , H04B1/707 , H04B7/0848 , H04L23/02 , H04L25/023 , H04L27/227 , H04L2027/0059 , H04L2027/0067
摘要： A receiver chain is provided for use in wireless data communication including a plurality of receive antennas and a vector Barker decoder or a CCK decoder. The vector Barker decoder operates on the plurality of received signals, preferably processed through a plurality of channel matched filters. The weightings of the plurality of channels can be done using a slicer variance, a PLL variance or another method.
摘要翻译：提供接收机链，用于包括多个接收天线和向量巴克解码器或CCK解码器的无线数据通信。向量Barker解码器对多个接收信号进行操作，优选地通过多个信道匹配滤波器进行处理。多个信道的加权可以使用限幅器方差，PLL方差或另一种方法来完成。

7. 发明授权

US08351988B2 Methods and systems for transmitting an information signal in a multiple antenna communication system 有权
标题翻译：用于在多天线通信系统中发送信息信号的方法和系统
公开(公告)号：US08351988B2
公开(公告)日：2013-01-08
申请号：US13236141
申请日：2011-09-19
申请人： Geert Arnout Awater , D. J. Richard Van Nee
发明人： Geert Arnout Awater , D. J. Richard Van Nee
IPC分类号： H04M1/00
CPC分类号： H04B7/0615 , H04B7/0854
摘要： Methods and systems are provided for transmitting a plurality of information signals in a multiple antenna communication system. One or more information signals are coded using a plurality of coders to generate the plurality of coded information signals and an Inverse Fast Fourier Transformation is performed on each of the plurality of coded information signals to create a corresponding output signal. Each of the corresponding output signals are transmitted on a different antenna. Each of the plurality of coded information signals can optionally be separated into K signals. On the receiver side, a signal comprising K different frequencies is received on at least N receive antennas and a Fast Fourier Transformation is applied to each of the at least N received versions of the signal comprising K different frequencies to generate N*K low frequency signals. The N*K separate low frequency signals are then combined to recover a transmitted information signal, based on one or more transfer functions from each of a plurality of transmit antennas to each of the N receive antennas.
摘要翻译：提供了用于在多天线通信系统中发送多个信息信号的方法和系统。使用多个编码器对一个或多个信息信号进行编码，以生成多个编码信息信号，并且对多个编码信息信号中的每一个执行反快速傅立叶变换以产生相应的输出信号。每个相应的输出信号在不同的天线上传输。多个编码信息信号中的每一个可以可选地分离成K个信号。在接收机侧，在至少N个接收天线上接收包含K个不同频率的信号，并且将快速傅里叶变换应用于包括K个不同频率的信号的至少N个接收版本中的每一个，以产生N * K个低频信号。然后，组合N * K个分离低频信号，以便基于从多个发射天线中的每一个到N个接收天线中的每一个的一个或多个传输函数来恢复所发送的信息信号。

8. 发明授权

US08416890B2 Decoding techniques for multi-antenna systems 有权
公开(公告)号：US08416890B2
公开(公告)日：2013-04-09
申请号：US12404433
申请日：2009-03-16
申请人： Geert Arnout Awater , D. J. Richard Van Nee
发明人： Geert Arnout Awater , D. J. Richard Van Nee
IPC分类号： H04L27/06
CPC分类号： H04L27/36 , H04L2025/0342 , H04L2025/03426
摘要： In one embodiment, a wireless device for a wireless data communication system including the wireless device and a base station. The base station includes a plurality of first groups and a signal-processing unit. Each first group includes a receiver and at least one antenna connected to the receiver. The signal-processing unit includes memory and a processor adapted to process signals received by the first groups using a Maximum Likelihood Detection (MLD) method. The wireless device includes a plurality of second groups, each second group adapted to transmit a wireless signal to at least one first group via a corresponding communication channel. Each second group further includes a transmitter and at least one antenna connected to the transmitter. The signal-processing unit is adapted to store, in the memory, information corresponding to one or more transfer functions, each transfer function corresponding to transmission of a wireless signal from an antenna of the second groups to an antenna of the first groups. The transmitters and receivers are adapted to operate at essentially the same frequency or frequency band. Two or more of the communication channels are generated simultaneously. Each transmitter is adapted to modulate an information signal on a radio-frequency signal according to a Quadrature Amplitude Modulation (QAM) method to transmit QAM symbols. Each receiver is adapted to demodulate information signals from a received radio-frequency signal according to the QAM method.

9. 发明授权

US08041394B2 Methods and systems for transmitting an information signal in a multiple antenna communication system 有权
标题翻译：用于在多天线通信系统中发送信息信号的方法和系统
公开(公告)号：US08041394B2
公开(公告)日：2011-10-18
申请号：US11146511
申请日：2005-06-07
申请人： Geert Arnout Awater , D. J. Richard Van Nee
发明人： Geert Arnout Awater , D. J. Richard Van Nee
IPC分类号： H04M1/00
CPC分类号： H04B7/0615 , H04B7/0854
摘要： Methods and systems are provided for transmitting a plurality of information signals in a multiple antenna communication system. One or more information signals are coded using a plurality of coders to generate the plurality of coded information signals and an Inverse Fast Fourier Transformation is performed on each of the plurality of coded information signals to create a corresponding output signal. Each of the corresponding output signals are transmitted on a different antenna. Each of the plurality of coded information signals can optionally be separated into K signals. On the receiver side, a signal comprising K different frequencies is received on at least N receive antennas and a Fast Fourier Transformation is applied to each of the at least N received versions of the signal comprising K different frequencies to generate N*K low frequency signals. The N*K separate low frequency signals are then combined to recover a transmitted information signal, based on one or more transfer functions from each of a plurality of transmit antennas to each of the N receive antennas.
摘要翻译：提供了用于在多天线通信系统中发送多个信息信号的方法和系统。使用多个编码器对一个或多个信息信号进行编码，以生成多个编码信息信号，并且对多个编码信息信号中的每一个执行反快速傅立叶变换以产生相应的输出信号。每个相应的输出信号在不同的天线上传输。多个编码信息信号中的每一个可以可选地分离成K个信号。在接收机侧，在至少N个接收天线上接收包含K个不同频率的信号，并且将快速傅里叶变换应用于包括K个不同频率的信号的至少N个接收版本中的每一个，以产生N * K个低频信号。然后，组合N * K个分离低频信号，以便基于从多个发射天线中的每一个到N个接收天线中的每一个的一个或多个传输函数来恢复所发送的信息信号。

10. 发明申请

US20090190697A1 DECODING TECHNIQUES FOR MULTI-ANTENNA SYSTEMS 有权
标题翻译：多天线系统的解码技术
公开(公告)号：US20090190697A1
公开(公告)日：2009-07-30
申请号：US12404433
申请日：2009-03-16
申请人： Geert Arnout Awater , D. J. Richard Van Nee
发明人： Geert Arnout Awater , D. J. Richard Van Nee
IPC分类号： H04L27/06
CPC分类号： H04L27/36 , H04L2025/0342 , H04L2025/03426
摘要： In one embodiment, a wireless device for a wireless data communication system including the wireless device and a base station. The base station includes a plurality of first groups and a signal-processing unit. Each first group includes a receiver and at least one antenna connected to the receiver. The signal-processing unit includes memory and a processor adapted to process signals received by the first groups using a Maximum Likelihood Detection (MLD) method. The wireless device includes a plurality of second groups, each second group adapted to transmit a wireless signal to at least one first group via a corresponding communication channel. Each second group further includes a transmitter and at least one antenna connected to the transmitter. The signal-processing unit is adapted to store, in the memory, information corresponding to one or more transfer functions, each transfer function corresponding to transmission of a wireless signal from an antenna of the second groups to an antenna of the first groups. The transmitters and receivers are adapted to operate at essentially the same frequency or frequency band. Two or more of the communication channels are generated simultaneously. Each transmitter is adapted to modulate an information signal on a radio-frequency signal according to a Quadrature Amplitude Modulation (QAM) method to transmit QAM symbols. Each receiver is adapted to demodulate information signals from a received radio-frequency signal according to the QAM method.
摘要翻译：在一个实施例中，一种用于包括无线设备和基站的无线数据通信系统的无线设备。基站包括多个第一组和信号处理单元。每个第一组包括接收器和连接到接收器的至少一个天线。信号处理单元包括存储器和适于使用最大似然检测（MLD）方法处理由第一组接收的信号的处理器。无线设备包括多个第二组，每个第二组适于经由相应的通信信道将无线信号发送到至少一个第一组。每个第二组还包括发射机和连接到发射机的至少一个天线。信号处理单元适于在存储器中存储对应于一个或多个传送函数的信息，对应于无线信号从第二组的天线到第一组的天线的传输的每个传递函数。发射机和接收机适于在基本上相同的频率或频带上操作。同时产生两个或多个通信信道。每个发射机适于根据正交幅度调制（QAM）方法对射频信号上的信息信号进行调制，以传输QAM符号。每个接收机适于根据QAM方法从接收的射频信号中解调信息信号。

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