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1. 发明授权

US08179845B2 Antenna-aware method for transmitting packets in a wireless communication network 有权
标题翻译：用于在无线通信网络中传送分组的天线感知方法
公开(公告)号：US08179845B2
公开(公告)日：2012-05-15
申请号：US12196010
申请日：2008-08-21
申请人： Ye Chen , Stephen P. Emeott , Isam R. Makhlouf
发明人： Ye Chen , Stephen P. Emeott , Isam R. Makhlouf
IPC分类号： G06F15/16
CPC分类号： H04W48/08 , H04W4/06 , H04W72/1278
摘要： A method for transmitting packets in a wireless communication network includes taking into consideration an antenna mode prior to transmission. The method includes determining a transmit antenna mode for a transmission between the node and at least one other node; when the transmit antenna mode is omni-directional, broadcasting a transmission schedule for the transmission omni-directionally; and when the transmit antenna is beamforming directional, broadcasting a transmission schedule for the transmission directionally on one or more transmitter beams. The method optionally can also take into consideration an antenna mode of a receive antenna between the node.
摘要翻译：在无线通信网络中发送分组的方法包括在传输之前考虑天线模式。该方法包括确定用于节点与至少一个其他节点之间的传输的发射天线模式; 当发射天线模式是全方位的时，全方位地传输传输调度表; 并且当发射天线是波束成形方向时，在一个或多个发射机波束上定向地广播用于传输的传输调度。该方法还可以考虑节点之间的接收天线的天线模式。

2. 发明申请

US20100046439A1 ANTENNA-AWARE METHOD FOR TRANSMITTING PACKETS IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：用于在无线通信网络中发送分组的天线方法
公开(公告)号：US20100046439A1
公开(公告)日：2010-02-25
申请号：US12196010
申请日：2008-08-21
申请人： Ye Chen , Stephen P. Emeott , Isam R. Makhlouf
发明人： Ye Chen , Stephen P. Emeott , Isam R. Makhlouf
IPC分类号： H04Q7/00
CPC分类号： H04W48/08 , H04W4/06 , H04W72/1278
摘要： A method for transmitting packets in a wireless communication network includes taking into consideration an antenna mode prior to transmission. The method includes determining a transmit antenna mode for a transmission between the node and at least one other node; when the transmit antenna mode is omni-directional, broadcasting a transmission schedule for the transmission omni-directionally; and when the transmit antenna is beamforming directional, broadcasting a transmission schedule for the transmission directionally on one or more transmitter beams. The method optionally can also take into consideration an antenna mode of a receive antenna between the node.
摘要翻译：在无线通信网络中发送分组的方法包括在传输之前考虑天线模式。该方法包括确定用于节点与至少一个其他节点之间的传输的发射天线模式; 当发射天线模式是全方位的时，全方位地传输传输调度表; 并且当发射天线是波束成形方向时，在一个或多个发射机波束上定向地广播用于传输的传输调度。该方法还可以考虑节点之间的接收天线的天线模式。

3. 发明申请

US20080146172A1 METHOD AND SYSTEM FOR DETECTING PERIODIC INTERMITTENT INTERFERENCE 审中-公开
标题翻译：用于检测周期性间歇性干扰的方法和系统
公开(公告)号：US20080146172A1
公开(公告)日：2008-06-19
申请号：US11611732
申请日：2006-12-15
申请人： ISAM R. MAKHLOUF , STEPHEN P. EMEOTT
发明人： ISAM R. MAKHLOUF , STEPHEN P. EMEOTT
IPC分类号： H04B1/00
CPC分类号： H04B1/1027 , H04B17/26 , H04B17/345 , H04L1/20
摘要： A method (10, 40 or 70) or system (200) of detecting periodic intermittent interference (PII) can include indirect detection by tracking (14) retransmission statistics of isochronous traffic or alternatively tracking channel probe request failures corresponding to temporal characteristics of microwave oven interference. Such tracking can be done in a number of ways including tracking (16) retransmission statistics by tracking MAC layer statistics or by tracking retransmission statistics for Voice over WLAN or by tracking a number of retransmission attempts required per transmission opportunity. In another alternative, the method can track (18) success and failures of probe requests for data traffic. The tracking schemes can use correlation. The method can further introduce (28) hysteresis in the detection of the PII to prevent rapid entering and exiting from a current detection mode. The method can further operate (29) in a direct PII detection mode if the indirect detection mode indicates PII.
摘要翻译：检测周期性间歇干扰（PII）的方法（10,40或70）或系统（200）可以包括通过跟踪（14）同步业务的重传统计或者跟踪对应于微波炉的时间特性的信道探测请求故障的间接检测干扰。这样的跟踪可以以多种方式完成，包括通过跟踪MAC层统计跟踪（16）重传统计信息，或通过跟踪WLAN上的语音的重发统计信息，或通过跟踪每次传输机会所需的重发次数。在另一个替代方案中，该方法可以跟踪（18）数据流量探测请求的成功和失败。跟踪方案可以使用相关性。该方法可以在PII的检测中进一步引入（28）滞后，以防止快速进入和退出电流检测模式。如果间接检测模式指示PII，该方法可以在直接PII检测模式下进一步操作（29）。

4. 发明申请

US20080146155A1 METHOD AND SYSTEM FOR RELIABLE DETECTION AND AVOIDANCE OF PERIODIC INTERMITTENT INTERFERENCE 审中-公开
标题翻译：用于可靠检测和避免周期性间歇性干扰的方法和系统
公开(公告)号：US20080146155A1
公开(公告)日：2008-06-19
申请号：US11611718
申请日：2006-12-15
申请人： Isam R. Makhlouf , Stephen P. Emeott
发明人： Isam R. Makhlouf , Stephen P. Emeott
IPC分类号： H04B15/00
CPC分类号： H04W16/14 , H04L5/0037 , H04L5/0062
摘要： A method (10, 40, 50 or 55) or system (200) of detecting and avoiding periodic intermittent interference (PII) can include monitoring (12) for PII on a current channel which can include monitoring (14) by tracking retransmission statistics of isochronous traffic or by tracking channel probe request failures corresponding to temporal characteristics of microwave oven interference where PII is detected if the retransmission statistics exceed a predetermined threshold or if the probe failure requests exceed another predetermined threshold. The method can further include selecting (16) a channel or an adjacent channel with a highest level of PII when PII is detected on the current channel which can optionally include selecting (18) a preset channel known for PII interference or adaptively selecting by directly measuring energy levels on a plurality of channels. The method can switch (20) to a preferred channel when PII is no longer detected on the current channel.
摘要翻译：检测和避免周期性间歇干扰（PII）的方法（10,40,50或55）或系统（200）可以包括对当前信道上的PII的监视（12），其可以包括通过跟踪重发统计或者如果重发统计超过预定阈值或者如果探测器故障请求超过另一预定阈值，则通过跟踪检测到PII的微波炉干扰的时间特性对应的信道探测请求失败。该方法还可以包括在当前信道上检测到PII时选择（16）具有最高级别的PII的信道或相邻信道，其可以可选地包括选择（18）已知的用于PII干扰的预设信道或通过直接测量自适应地选择多个通道上的能级。当在当前信道上不再检测到PII时，该方法可以将（20）切换到优选信道。

5. 发明授权

US07233633B2 Channel estimation using linearly constrained filter coefficients 有权
标题翻译：使用线性约束滤波系数的信道估计
公开(公告)号：US07233633B2
公开(公告)日：2007-06-19
申请号：US11098218
申请日：2005-04-04
申请人： Isam R. Makhlouf , Steven C. Jasper
发明人： Isam R. Makhlouf , Steven C. Jasper
IPC分类号： H04L27/06 , H04B1/10
CPC分类号： H04L25/0224 , H04L27/2647
摘要： A system that includes a receiver (100) that is configured for: selecting (210) a set of demodulator output samples and a corresponding set of reference symbols each having a magnitude; generating (220) a set of raw channel estimates based on the set of demodulator output samples and the corresponding set of reference symbols; determining (230) a set of linearly-constrained filter coefficient parameters; and combining (240) the set of raw channel estimates with the set of linearly-constrained filter coefficient parameters to generate a channel estimate.
摘要翻译：一种包括接收机（100）的系统，其被配置为：选择（210）一组解调器输出采样和各自具有幅度的对应的参考符号集合; 基于所述解调器输出样本集合和相应的参考符号集合来生成（220）一组原始信道估计; 确定（230）一组线性约束滤波器系数参数; 以及将所述原始信道估计集合与所述线性约束滤波器系数参数的集合（240）以生成信道估计。

6. 发明申请

US20080146156A1 METHOD AND SYSTEM FOR PREDICTIVE SENSING OF PERIODIC INTERMITTENT INTERFERENCE 有权
标题翻译：用于周期性干扰的预测性感测的方法和系统
公开(公告)号：US20080146156A1
公开(公告)日：2008-06-19
申请号：US11611725
申请日：2006-12-15
申请人： ISAM R. MAKHLOUF , STEPHEN P. EMEOTT
发明人： ISAM R. MAKHLOUF , STEPHEN P. EMEOTT
IPC分类号： H04B1/00
CPC分类号： H04W74/0808
摘要： A method (10 or 40) or system (200) of predictive sensing of periodic intermittent interference (PII) can include the measuring (12) of energy on a channel for an indication of PII, determining (14) if a channel is currently in a PII on-cycle, and adjusting (16) a clear channel assessment threshold to a new threshold for improved sensitivity of the PII on-cycle. If a current energy level on the channel is below the new threshold and if a previous on-energy characteristic suggests that the current energy level will remain below the new threshold for a predetermined minimum period of time, then a clear channel indication can be provided (20). A busy channel indication is provided (45) when either the current energy level is above the new threshold or the previous on-energy characteristic suggests the current energy level will not remain below the threshold for predetermined minimum period of time.
摘要翻译：用于周期性间歇干扰（PII）的预测感测的方法（10或40）或系统（200）可以包括用于PII的指示的信道上的能量测量（12），确定（14）如果信道当前处于 PII on循环，并将（16）清晰的通道评估阈值调整到新的阈值，以提高PII on-cycle的灵敏度。如果信道上的当前能量级别低于新阈值，并且如果先前的能量特性表明当前能量水平将在预定的最小时间段内保持低于新阈值，则可以提供清除信道指示（ 20）。当当前能量水平高于新阈值或先前的开启能量特性时，提供忙通道指示（45），表明当前能量水平将不会保持在预定的最小时间段内的阈值以下。

7. 发明授权

US07072783B2 Frequency and timing error estimation and corresponding channel characterization in a communication system 有权
标题翻译：通信系统中的频率和定时误差估计及相应的信道特征
公开(公告)号：US07072783B2
公开(公告)日：2006-07-04
申请号：US10782448
申请日：2004-02-19
申请人： Isam R. Makhlouf , Steven C. Jasper
发明人： Isam R. Makhlouf , Steven C. Jasper
IPC分类号： G01R29/26
CPC分类号： H04L27/2657 , H04L27/266 , H04L27/2665 , H04L2027/0034
摘要： A method for determining a frequency error over at least one frequency search space for a received signal, the method including the steps of: calculating a first noise estimation for a first frequency offset in a frequency search space; calculating at least a second noise estimation for a second frequency offset in the frequency search space; and determining a minimum noise estimation from the calculated noise estimations, wherein the frequency error is the frequency offset corresponding to the minimum noise estimation.
摘要翻译：一种用于确定接收信号的至少一个频率搜索空间的频率误差的方法，所述方法包括以下步骤：计算频率搜索空间中第一频率偏移的第一噪声估计; 计算所述频率搜索空间中的第二频率偏移的至少第二噪声估计; 以及根据所计算的噪声估计来确定最小噪声估计，其中所述频率误差是对应于所述最小噪声估计的频率偏移。

8. 发明授权

US06201955B1 Method and apparatus for receiving a radio frequency signal using a plurality of antennas 失效
标题翻译：使用多个天线接收射频信号的方法和装置
公开(公告)号：US06201955B1
公开(公告)日：2001-03-13
申请号：US09087192
申请日：1998-05-29
申请人： Steven C. Jasper , Isam R. Makhlouf
发明人： Steven C. Jasper , Isam R. Makhlouf
IPC分类号： H04Q720
CPC分类号： H04B7/0857
摘要： An antenna array portion of a communication device receives a desired signal and an interfering signal. The unweighted desired and interfering signals from a first antenna (302) are then combined in a summer (308) with weighted versions of the signals from a second antenna (304) to produce a received RF signal (312). The signal-to-noise ratio (SNR) of the received RF signal (312) is then estimated using a spectral analysis technique. This estimate, along with the complex weights applied to the signal from the second antenna, is then stored. Utilizing feedback and a methodology for searching through a range of sets of complex weights, the weights optimizing the SNR are determined and used to weight subsequent signals from the second antenna. In this way the antenna array's gain pattern is adjusted to maximize the SNR of the desired signal
摘要翻译：通信设备的天线阵列部分接收期望的信号和干扰信号。然后，来自第一天线（302）的未加权期望和干扰信号在加法器（308）中与来自第二天线（304）的信号的加权版本组合以产生接收的RF信号（312）。然后使用频谱分析技术来估计接收的RF信号（312）的信噪比（SNR）。然后存储该估计以及应用于来自第二天线的信号的复权重。利用反馈和用于在一系列复权重中搜索的方法，确定优化SNR的权重并用于加权来自第二天线的后续信号。以这种方式，调整天线阵列的增益模式以最大化期望信号的SNR

9. 发明申请

US20130272436A1 METHODS AND APPARATUS FOR MITIGATING INTERFERENCE BETWEEN CO-LOCATED COLLABORATING RADIOS 有权
标题翻译：减少协调无线电联网干扰的方法和装置
公开(公告)号：US20130272436A1
公开(公告)日：2013-10-17
申请号：US13446087
申请日：2012-04-13
申请人： ISAM R. MAKHLOUF , MICHAEL H. BAKER , XIAOWEI JIN
发明人： ISAM R. MAKHLOUF , MICHAEL H. BAKER , XIAOWEI JIN
IPC分类号： H04B15/00 , H04L27/28
CPC分类号： H04J11/0066
摘要： A method and apparatus for mitigating out of band emissions among user equipment and base stations operating at geographically co-located and spectrally distinct wireless communication systems are provided herein. During operation, a wireless radio will determine potential interferers. Preferably, these interferers comprise user equipment and base stations operating at geographically co-located and spectrally distinct wireless communication systems. Once determined, a channel quality indicator (CQI) will be adjusted accordingly to accommodate for any potential interferer. Because the CQI will take into effect any potential interferer, transmissions to/from the wireless radio will be made more robust, decreasing channel interference.
摘要翻译：本文提供了一种用于减轻在地理位置和频谱不同的无线通信系统上操作的用户设备和基站之间的带外发射的方法和装置。在操作期间，无线电将确定潜在的干扰。优选地，这些干扰源包括在地理位置相同且频谱不同的无线通信系统上操作的用户设备和基站。一旦确定，将相应地调整信道质量指示符（CQI）以适应任何潜在的干扰。由于CQI将使任何潜在的干扰源生效，所以对/从无线无线电的传输将变得更加鲁棒，从而降低信道干扰。

10. 发明申请

US20130171955A1 METHODS AND APPARATUS FOR DETECTING AND MITIGATING RADIO INTERFERENCE AMONG USER EQUIPMENT AND BASE STATIONS OF GEOGRAPHICALLY CO-LOCATED AND SPECTRALLY DISTINCT WIRELESS SYSTEMS 有权
标题翻译：用于地理位置和频谱分离无线系统的用户设备和基站的检测和减轻无线电干扰的方法和装置
公开(公告)号：US20130171955A1
公开(公告)日：2013-07-04
申请号：US13340135
申请日：2011-12-29
申请人： ISAM R. MAKHLOUF , ETHAN Y. CHEN , XIAOWEI JIN
发明人： ISAM R. MAKHLOUF , ETHAN Y. CHEN , XIAOWEI JIN
IPC分类号： H04W52/24 , H04W24/02 , H04W4/04 , H04W4/22
CPC分类号： H04W52/242 , H04W52/146 , H04W52/244
摘要： Methods and apparatus are provided for detecting interference between spectrally distinct wireless communication networks. A first base station in a first network communicates with a first mobile device at a first frequency, and a second base station communicates at a second frequency with a second mobile device geographically co-located with the first mobile device. The power level of an interfering signal received at the first base station from the second mobile device may be estimated by sharing information between the two networks through an interoperability gateway. The path loss of a reference signal transmitted from the first mobile device to its base station is communicated to the gateway, along with a parameter associated with the transmit power level of the interfering signal. Based on this parameter and the reference signal path loss, the received power level of the interfering signal may be inferred.
摘要翻译：提供了用于检测频谱不同的无线通信网络之间的干扰的方法和装置。第一网络中的第一基站以第一频率与第一移动设备通信，并且第二基站以与第一移动设备地理位置同位的第二移动设备以第二频率进行通信。可以通过通过互操作性网关在两个网络之间共享信息来估计从第二移动设备在第一基站接收的干扰信号的功率电平。将从第一移动设备发送到其基站的参考信号的路径损耗与干扰信号的发射功率电平相关联的参数传送到网关。基于该参数和参考信号路径损耗，可以推断干扰信号的接收功率电平。

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