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1. 发明授权

US08964692B2 Spectrum sensing of bluetooth using a sequence of energy detection measurements 有权
标题翻译：使用一系列能量检测测量对蓝牙的频谱感测
公开(公告)号：US08964692B2
公开(公告)日：2015-02-24
申请号：US12612749
申请日：2009-11-05
申请人： Stephen J. Shellhammer , Richard Van Nee
发明人： Stephen J. Shellhammer , Richard Van Nee
IPC分类号： H04W4/00 , H04W16/14 , H04W8/00
CPC分类号： H04W16/14 , H04W8/005
摘要： Certain aspects of the present disclosure provide techniques for detecting presence of a Bluetooth device in the vicinity of a WiFi device by sensing the spectrum of the Bluetooth device using a sequence of energy detection measurements, generating a test statistic based on the measurements and comparing the test statistic to a threshold.
摘要翻译：本公开的某些方面提供用于通过使用一系列能量检测测量来感测蓝牙设备的频谱来检测WiFi设备附近的蓝牙设备的存在的技术，基于测量产生测试统计量并比较测试统计到阈值。

2. 发明申请

US20100118695A1 SPECTRUM SENSING OF BLUETOOTH USING A SEQUENCE OF ENERGY DETECTION MEASUREMENTS 有权
标题翻译：使用能量检测测量序列的蓝牙光谱感测
公开(公告)号：US20100118695A1
公开(公告)日：2010-05-13
申请号：US12612749
申请日：2009-11-05
申请人： Stephen J. Shellhammer , Richard Van Nee
发明人： Stephen J. Shellhammer , Richard Van Nee
IPC分类号： H04J3/14
CPC分类号： H04W16/14 , H04W8/005
摘要： Certain aspects of the present disclosure provide techniques for detecting presence of a Bluetooth device in the vicinity of a WiFi device by sensing the spectrum of the Bluetooth device using a sequence of energy detection measurements, generating a test statistic based on the measurements and comparing the test statistic to a threshold.
摘要翻译：本公开的某些方面提供用于通过使用一系列能量检测测量来感测蓝牙设备的频谱来检测WiFi设备附近的蓝牙设备的存在的技术，基于测量产生测试统计量并比较测试统计到阈值。

3. 发明授权

US08498363B2 Compensating for frequency offsets on a base station 有权
标题翻译：补偿基站上的频率偏移
公开(公告)号：US08498363B2
公开(公告)日：2013-07-30
申请号：US12845029
申请日：2010-07-28
申请人： Richard Van Nee , Gregory Steele
发明人： Richard Van Nee , Gregory Steele
IPC分类号： H04K1/02
CPC分类号： H04L25/0212 , H04B7/01 , H04B7/0602 , H04L27/2657 , H04L27/2671
摘要： A base station for compensating for frequency offsets is described. The base station includes a processor and instructions stored in memory. The base station computes a time domain impulse response estimate and applies frequency offset compensation to the time domain impulse response estimate to obtain a time domain offset-compensated impulse response estimate. A frequency domain offset-compensated impulse response estimate is computed. The frequency domain offset-compensated impulse response estimate is used to compute beamforming weights. The base station transmits data using the beamforming weights.
摘要翻译：描述用于补偿频率偏移的基站。基站包括处理器和存储在存储器中的指令。基站计算时域脉冲响应估计，并将频偏补偿应用于时域脉冲响应估计，以获得时域偏移补偿脉冲响应估计。计算频域偏移补偿脉冲响应估计。频域偏移补偿脉冲响应估计用于计算波束成形权重。基站使用波束成形权重发送数据。

4. 发明授权

US06563786B1 Orthogonal frequency division multiplexing system with selectable rate 有权
标题翻译：具有可选速率的正交频分复用系统
公开(公告)号：US06563786B1
公开(公告)日：2003-05-13
申请号：US09224695
申请日：1999-01-04
申请人： Richard Van Nee
发明人： Richard Van Nee
IPC分类号： H04J1100
CPC分类号： H04L27/2602 , H04L1/0002 , H04L5/1446 , H04L25/08 , H04L27/2605 , H04L27/2607 , H04L27/2647 , H04L27/2662
摘要： An OFDM system uses a normal mode which has a symbol length T, a guard time TG and a set of N sub-carriers, which are orthogonal over the time T, and one or more fallback modes which have symbol lengths KT and guard times KTG where K is an integer greater than unity. The same set of N sub-carriers is used for the fallback modes as for the normal mode. Since the same set of sub-carriers is used, the overall bandwidth is substantially constant, so alias filtering does not need to be adaptive. The Fourier transform operations are the same as for the normal mode. Thus fallback modes are provided with little hardware cost. In the fallback modes the increased guard time provides better delay spread tolerance and the increased symbol length provides improved signal to noise performance, and thus increased range, at the cost of reduced data rate.
摘要翻译： OFDM系统使用具有在时间T上是正交的符号长度T，保护时间TG和一组N个子载波的正常模式，以及具有符号长度KT和保护时间KTG的一个或多个回退模式其中K是大于1的整数。相同的一组N个子载波用于回退模式，与正常模式一样。由于使用相同的子载波集合，所以总带宽基本上是恒定的，所以别名滤波不需要是自适应的。傅里叶变换操作与正常模式相同。因此，回退模式的硬件成本很低。在回退模式中，增加的保护时间提供更好的延迟扩展容限，并且增加的符号长度提供改善的信噪比性能，并因此提高范围，以降低的数据速率为代价。

5. 发明授权

US08325644B2 Mixed mode preamble design for signaling number of streams per client 有权
标题翻译：用于每个客户端的信令数量的混合模式前导码设计
公开(公告)号：US08325644B2
公开(公告)日：2012-12-04
申请号：US12684258
申请日：2010-01-08
申请人： Hemanth Sampath , Richard Van Nee , Albert Van Zeist , Geert Arnout Awater
发明人： Hemanth Sampath , Richard Van Nee , Albert Van Zeist , Geert Arnout Awater
IPC分类号： H04W4/18
CPC分类号： H04L1/0028 , H04B7/0413 , H04L1/02
摘要： Certain aspects of the present disclosure present a technique for designing a signal (SIG) field of a mixed mode preamble transmitted to a plurality of user terminals. The SIG field can signal a number of spatial streams assigned to each user. The SIG field is designed such that a robust interference cancellation can be achieved at each user terminal.
摘要翻译：本公开的某些方面提供了一种用于设计发送到多个用户终端的混合模式前导码的信号（SIG）字段的技术。 SIG字段可以发送分配给每个用户的多个空间流。 SIG字段被设计为使得可以在每个用户终端处实现鲁棒的干扰消除。

6. 发明申请

US20110110454A1 MIXED MODE PREAMBLE DESIGN FOR SIGNALING NUMBER OF STREAMS PER CLIENT 有权
标题翻译：混合模式预设设计用于每个客户的信号数量
公开(公告)号：US20110110454A1
公开(公告)日：2011-05-12
申请号：US12684258
申请日：2010-01-08
申请人： Hemanth Sampath , Richard Van Nee , Albert Van Zelst , Geert Arnout Awater
发明人： Hemanth Sampath , Richard Van Nee , Albert Van Zelst , Geert Arnout Awater
IPC分类号： H04L27/00 , H04B7/02
CPC分类号： H04L1/0028 , H04B7/0413 , H04L1/02
摘要： Certain aspects of the present disclosure present a technique for designing a signal (SIG) field of a mixed mode preamble transmitted to a plurality of user terminals. The SIG field can signal a number of spatial streams assigned to each user. The SIG field is designed such that a robust interference cancellation can be achieved at each user terminal.
摘要翻译：本公开的某些方面提供了一种用于设计发送到多个用户终端的混合模式前导码的信号（SIG）字段的技术。 SIG字段可以发送分配给每个用户的多个空间流。 SIG字段被设计为使得可以在每个用户终端处实现鲁棒的干扰消除。

7. 发明申请

US20110013607A1 CONSTRUCTING VERY HIGH THROUGHPUT LONG TRAINING FIELD SEQUENCES 有权
标题翻译：构建非常高的长期训练场序列
公开(公告)号：US20110013607A1
公开(公告)日：2011-01-20
申请号：US12731634
申请日：2010-03-25
申请人： Richard Van Nee , Lin Yang , Hemanth Sampath
发明人： Richard Van Nee , Lin Yang , Hemanth Sampath
IPC分类号： H04W4/00 , H04W8/00
CPC分类号： H04L27/2615 , H04L27/2613 , H04L27/2621
摘要： Certain aspects of the present disclosure relate to techniques for constructing a long training field (LTF) sequence in a preamble to reduce a peak-to-average power ratio (PAPR) at a transmitter.
摘要翻译：本公开的某些方面涉及在前导码中构造长训练场（LTF）序列以降低发射机的峰均功率比（PAPR）的技术。

8. 发明授权

US08385443B2 Constructing very high throughput long training field sequences 有权
标题翻译：构建非常高吞吐量的长训练场序列
公开(公告)号：US08385443B2
公开(公告)日：2013-02-26
申请号：US12731634
申请日：2010-03-25
申请人： Richard Van Nee , Lin Yang , Hemanth Sampath
发明人： Richard Van Nee , Lin Yang , Hemanth Sampath
IPC分类号： H04L27/28 , H04K1/10
CPC分类号： H04L27/2615 , H04L27/2613 , H04L27/2621
摘要： Certain aspects of the present disclosure relate to techniques for constructing a long training field (LTF) sequence in a preamble to reduce a peak-to-average power ratio (PAPR) at a transmitter.
摘要翻译：本公开的某些方面涉及在前导码中构造长训练场（LTF）序列以降低发射机的峰均功率比（PAPR）的技术。

9. 发明申请

US20110002227A1 MULTIUSER SCHEDULING IN WLAN SYSTEMS 有权
标题翻译： WLAN系统中的多播机调度
公开(公告)号：US20110002227A1
公开(公告)日：2011-01-06
申请号：US12538535
申请日：2009-08-10
申请人： Hemanth Sampath , Sameer Vermani , Richard Van Nee , Santosh P. Abraham , Abert Van Zelst
发明人： Hemanth Sampath , Sameer Vermani , Richard Van Nee , Santosh P. Abraham , Abert Van Zelst
IPC分类号： H04L12/26 , H04W4/00 , H04W72/00
CPC分类号： H04W72/121 , H04B7/0417 , H04B7/0452 , H04W88/08
摘要： An apparatus for wireless communications is provided including a processing system. The processing system is configured to determine path-losses between the apparatus and a plurality of wireless nodes, to group the plurality of wireless nodes into sets based on the determined path-losses, and to exchange data with at least one of the wireless nodes in one of the sets.
摘要翻译：提供了一种用于无线通信的装置，包括处理系统。所述处理系统被配置为确定所述装置与多个无线节点之间的路径损耗，以基于所确定的路径损耗将所述多个无线节点分组成集合，并且与所述无线节点中的至少一个交换数据其中一套。

10. 发明授权

US06992972B2 Frequency division multiplexing system with selectable rate 有权
公开(公告)号：US06992972B2
公开(公告)日：2006-01-31
申请号：US10410375
申请日：2003-04-09
申请人： Richard Van Nee
发明人： Richard Van Nee
IPC分类号： H04J11/00
CPC分类号： H04L27/2602 , H04L1/0002 , H04L5/1446 , H04L25/08 , H04L27/2605 , H04L27/2607 , H04L27/2647 , H04L27/2662
摘要： An OFDM system uses a normal mode which has a symbol length T, a guard time TG and a set of N sub-carriers, which are orthogonal over the time T, and one or more fallback modes which have symbol lengths KT and guard times KTG where K is an integer greater than unity. The same set of N sub-carriers is used for the fallback modes as for the normal mode. Since the same set of sub-carriers is used, the overall bandwidth is substantially constant, so alias filtering does not need to be adaptive. The Fourier transform operations are the same as for the normal mode. Thus fallback modes are provided with little hardware cost. In the fallback modes the increased guard time provides better delay spread tolerance and the increased symbol length provides improved signal to noise performance, and thus increased range, at the cost of reduced data rate.

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