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公开(公告)号：AT475238T
公开(公告)日：2010-08-15
申请号：AT07854935
申请日：2007-12-05
Applicant: MOTOROLA INC
Inventor： MAKHLOUF ISAM R , EMEOTT STEPHEN P
Abstract: The invention can establish a default retransmission algorithm and an interference retransmission algorithm. The default retransmission algorithm can be a Distributed Coordination Function (DCF) based algorithm implemented in a MAC layer in conformance with an IEEE 802.11 based standard. The minimum cumulative back-off time for the default transmission algorithm can be less a minimum cumulative back-off time for the interference retransmission algorithm. The minimum cumulative back-off time for the interference retransmission algorithm can be greater than an on-cycle of the PII and less than a sum of the one and off-cycles of the PII (e.g., between ~8.3 ms and ~16.7 ms for microwave oven generated PII). A determination can be made whether periodic intermittent interference is present. If so, the default retransmission algorithm can be automatically utilized for wireless data conveyances. When PII is present, the interference retransmission algorithm can be automatically utilized.
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公开(公告)号：GB2440296A
公开(公告)日：2008-01-23
申请号：GB0721495
申请日：2006-03-31
Applicant: MOTOROLA INC , JASPER STEVEN C , CORKE ROBERT J , FRANK COLIN D , MAKHLOUF ISAM R
Inventor： JASPER STEVEN C , CORKE ROBERT J , FRANK COLIN D , MAKHLOUF ISAM R
Abstract: 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.
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公开(公告)号：GB2440296B
公开(公告)日：2009-12-09
申请号：GB0721495
申请日：2006-03-31
Applicant: MOTOROLA INC , JASPER STEVEN C , CORKE ROBERT J , FRANK COLIN D , MAKHLOUF ISAM R
Inventor： JASPER STEVEN C , CORKE ROBERT J , FRANK COLIN D , MAKHLOUF ISAM R
IPC: H04L25/02
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公开(公告)号：GB2440094A
公开(公告)日：2008-01-16
申请号：GB0722373
申请日：2006-03-31
Applicant: MOTOROLA INC
Inventor： FRANK COLIN D , CORKE ROBERT J , JASPER STEVEN C , MAKHLOUF ISAM R
Abstract: A receiver (300) configured for: a) receiving (410) a first OFDM symbol and generating a plurality of demodulated symbols (306) for the first OFDM symbol: b) generating (420) decoder output code symbols (326) corresponding to a subset of the plurality of demodulated symbols; c) determining (430) that a set of (he decoder output code symbols (326) make up a set of reference symbols corresponding to at least a portion of the subset of the plurality of demodulated symbols (306); d) generating (440) the set of reference symbols; e) generating (450) a set of channel estimates (362) based on the set of reference symbols and the at least a portion of the subset of the plurality of demodulated symbols, for use in decoding a current OFDM symbol; and f) repeating steps b- e until a channel estimate for each demodulated symbol corresponding to the first OFDM symbol has been generated.
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公开(公告)号：WO2006107911B1
公开(公告)日：2007-07-26
申请号：PCT/US2006012410
申请日：2006-03-31
Applicant: MOTOROLA INC , JASPER STEVEN C , CORKE ROBERT J , FRANK COLIN D , MAKHLOUF ISAM R
Inventor： JASPER STEVEN C , CORKE ROBERT J , FRANK COLIN D , MAKHLOUF ISAM R
CPC classification number: H04L25/0224 , H04L27/2647
Abstract: 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.
Abstract translation: 一种包括接收机（100）的系统，所述接收机（100）被配置用于：选择（210）一组解调器输出采样和对应的一组参考符号; 基于所述一组解调器输出采样和所述对应的参考符号集合生成（220）一组原始信道估计; 将所述一组原始信道估计值细分（230）为多个子集; 将对应的参考符号量值方案分配并应用（240）到每个子集; 基于应用于原始信道估计的子集的量化方案来确定（250）一组滤波器系数; 以及将该组原始信道估计与该组滤波器系数组合（260）以生成信道估计。
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Patent Agency Ranking6.发明申请FREQUENCY AND TIMING ERROR ESTIMATION AND CORRESPONDING CHANNEL CHARACTERIZATION IN A COMMUNICATION SYSTEM 审中-公开通信系统中的频率和时间误差估计及相应的信道特征
公开(公告)号：WO2005057943A3
公开(公告)日：2005-12-29
申请号：PCT/US2004040413
申请日：2004-12-02
Applicant: MOTOROLA INC , MAKHLOUF ISAM R , JASPER STEVEN C
Inventor： MAKHLOUF ISAM R , JASPER STEVEN C
CPC classification number: H04L27/2657 , H04L27/266 , H04L27/2665 , H04L2027/0034
Abstract: 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.
Abstract translation: 一种用于确定接收信号的至少一个频率搜索空间上的频率误差的方法，该方法包括以下步骤：计算频率搜索空间中第一频率偏移的第一噪声估计; 针对频率搜索空间中的第二频率偏移计算至少第二噪声估计; 以及从所计算的噪声估计中确定最小噪声估计，其中，所述频率误差是与最小噪声估计相对应的频率偏移。
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7.发明申请ANTENNA-AWARE METHOD FOR TRANSMITTING PACKETS IN A WIRELESS COMMUNICATION NETWORK 审中-公开用于在无线通信网络中发送分组的无线天线感知方法
公开(公告)号：WO2010021831A3
公开(公告)日：2010-04-29
申请号：PCT/US2009052620
申请日：2009-08-04
Applicant: MOTOROLA INC , CHEN YE , EMEOTT STEPHEN P , MAKHLOUF ISAM R
Inventor： CHEN YE , EMEOTT STEPHEN P , MAKHLOUF ISAM R
CPC classification number: H04W48/08 , H04W4/06 , H04W72/1278
Abstract: 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.
Abstract translation: 用于在无线通信网络中发送分组的方法包括在发送之前考虑天线模式。 该方法包括确定节点与至少一个其他节点之间的传输的传输天线模式; 当发射天线模式是全向时，全向广播传输的发射时间表; 并且当发射天线是波束形成定向时，在一个或多个发射器波束上定向地广播用于传输的传输调度。 该方法可选地还可以考虑节点之间的接收天线的天线模式。
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公开(公告)号：WO2006107910A2
公开(公告)日：2006-10-12
申请号：PCT/US2006012407
申请日：2006-03-31
Applicant: MOTOROLA INC , MAKHLOUF ISAM R , JASPER STEVEN C
Inventor： MAKHLOUF ISAM R , JASPER STEVEN C
CPC classification number: H04L25/0224 , H04L27/2647
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：DE602007007993D1
公开(公告)日：2010-09-02
申请号：DE602007007993
申请日：2007-12-05
Applicant: MOTOROLA INC
Inventor： MAKHLOUF ISAM R , EMEOTT STEPHEN P
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公开(公告)号：GB2440094B
公开(公告)日：2009-12-16
申请号：GB0722373
申请日：2006-03-31
Applicant: MOTOROLA INC
Inventor： FRANK COLIN D , CORKE ROBERT J , JASPER STEVEN C , MAKHLOUF ISAM R
Abstract: A receiver configured for: a) receiving (410) a first OFDM symbol and generating a plurality of demodulated symbols for the first OFDM symbol; b) generating (420) decoder output code symbols corresponding to a subset of the plurality of demodulated symbols; c) determining (430) that a set of the decoder output code symbols make up a set of reference symbols corresponding to at least a portion of the subset of the plurality of demodulated symbols; d) generating (440) the set of reference symbols; e) generating (450) a set of channel estimates based on the set of reference symbols and the at least a portion of the subset of the plurality of demodulated symbols, for use in decoding a current OFDM symbol; and f) repeating steps b-e until a channel estimate for each demodulated symbol corresponding to the first OFDM symbol has been generated.
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