公开(公告)号：US08712331B2

公开(公告)日：2014-04-29

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

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。

公开(公告)号：US08655304B2

公开(公告)日：2014-02-18

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： H04M11/04 ,  H04B1/04

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。

公开(公告)号：US20080298249A1

公开(公告)日：2008-12-04

申请号：US11770796

申请日：2007-06-29

申请人： Michael H. Baker ,  Ye Chen ,  Stephen P. Emeott ,  Isam R. Makhlouf

发明人： Michael H. Baker ,  Ye Chen ,  Stephen P. Emeott ,  Isam R. Makhlouf

IPC分类号： H04L12/28

CPC分类号： H04W48/20 ,  H04W84/22

摘要： A method for selection of the association access point for a station in an infrastructure mesh network based on received signal strength and one or more “association bias” weights received from neighboring access points. Each weight corresponds to a packet length category. In one embodiment, stations measure received signal strength for received signals and decode the association bias information field(s) and corresponding packet length category thresholds that are received in management frames such as beacons. Stations use this information to select an access point for association that will minimize the overall mesh resource utilization for the traffic (i.e. packet lengths) being transmitted. The method includes three elements: network assistance, access point actions, and station actions.

摘要翻译： 一种用于基于从相邻接入点接收到的接收信号强度和一个或多个“关联偏差”权重来选择基础设施网状网络中的站的关联接入点的方法。 每个权重对应于数据包长度类别。 在一个实施例中，站测量接收到的信号的接收信号强度，并解码在诸如信标之类的管理帧中接收到的关联偏差信息字段和对应的分组长度类别阈值。 站使用该信息来选择用于关联的接入点，其将最小化正在发送的业务（即分组长度）的总的网状资源利用率。 该方法包括三个要素：网络协助，接入点动作和站点动作。

公开(公告)号：US20090296674A1

公开(公告)日：2009-12-03

申请号：US12129647

申请日：2008-05-29

申请人： Randy L. Ekl ,  Mark A. Birchler ,  Isam R. Makhlouf

发明人： Randy L. Ekl ,  Mark A. Birchler ,  Isam R. Makhlouf

IPC分类号： H04Q7/24

CPC分类号： H04W8/005 ,  H04W64/00

摘要： Each node in a wireless communication network adds information in hello messages wherein the information comprises the number of hello messages received at the node from a plurality of nodes. Also, the nodes are configured to determine the node density based on additional information extracted from the received hello messages. For example, a first node in the wireless communication network receives a hello message from a second node, wherein the hello message comprises additional information indicating at least a number of hello messages received by the second node from a plurality of nodes in the wireless communication network. The first node extracts the additional information from the received hello message and based on the extracted additional information, the first node determines at least one channel performance metric. Based on the at least one channel performance metric the first node determines density of neighboring nodes in the wireless communication network.

摘要翻译： 无线通信网络中的每个节点在hello消息中添加信息，其中信息包括从多个节点在节点处接收到的hello消息的数量。 此外，节点被配置为基于从接收到的hello消息提取的附加信息来确定节点密度。 例如，无线通信网络中的第一节点从第二节点接收到一个hello消息，其中，hello消息包括附加信息，其指示由第二节点从无线通信网络中的多个节点接收的至少多个hello消息 。 第一节点从接收到的hello消息中提取附加信息，并且基于所提取的附加信息，第一节点确定至少一个信道性能度量。 基于所述至少一个信道性能度量，所述第一节点确定所述无线通信网络中的相邻节点的密度。

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。

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。

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。

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。

公开(公告)号：US07257171B2

公开(公告)日：2007-08-14

申请号：US11098208

申请日：2005-04-04

申请人： Steven C. Jasper ,  Robert J. Corke ,  Colin D. Frank ,  Isam R. Makhlouf

发明人： Steven C. Jasper ,  Robert J. Corke ,  Colin D. Frank ,  Isam R. Makhlouf

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; generating (220) a set of raw channel estimates based on the set of demodulator output samples and the corresponding set of reference symbols; subdividing (230) the set of raw channel estimates into a plurality of subsets; assigning and applying (240) a corresponding reference symbol magnitude quantization scheme to each subset; determining (250) a set of filter coefficients that is based on the quantization schemes applied to the subsets of raw channel estimates; and combining (260) the set of raw channel estimates with the set of filter coefficients 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相应的一组参考符号; 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; 将所述原始信道估计集合（230）细分为多个子集; 向每个子集分配和应用（240）对应的参考符号量化量化方案; 确定（250）基于应用于原始信道估计的子集的量化方案的一组滤波器系数; 以及将所述原始信道估计集合与所述滤波器系数集合（260）以生成信道估计。

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。