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1. 发明授权

US07715425B2 Channel adaptation synchronized to periodically varying channel 有权
标题翻译：频道适应同步到周期性变化的频道
公开(公告)号：US07715425B2
公开(公告)日：2010-05-11
申请号：US10787544
申请日：2004-02-26
申请人： Lawrence W. Yonge, III , Srinivas Katar , Stanley J. Kostoff, II , William E. Earnshaw , Bart W. Blanchard , Hassan Kaywan Afkhamie , Harper Brent Mashburn
发明人： Lawrence W. Yonge, III , Srinivas Katar , Stanley J. Kostoff, II , William E. Earnshaw , Bart W. Blanchard , Hassan Kaywan Afkhamie , Harper Brent Mashburn
IPC分类号： H04J3/16
CPC分类号： H04B3/542 , H04B2203/5495 , H04L5/0044
摘要： A method of operating in a network (e.g., a power line communication network) in which a plurality of stations communicate over a shared medium (e.g., an AC power line) having a periodically varying channel. The method includes determining a plurality of channel adaptations (e.g., tone maps) for communication between a pair of stations, and assigning a different one of the plurality of channel adaptations to each of a plurality of phase regions of the periodically varying channel.
摘要翻译：一种在网络（例如，电力线通信网络）中操作的方法，其中多个站通过具有周期性变化的信道的共享介质（例如，AC电力线）进行通信。该方法包括确定用于一对站之间的通信的多个信道调整（例如，音调映射），以及将多个信道适配中的不同一个分配给周期性变化信道的多个相位区域中的每一个。

2. 发明申请

US20110280329A1 CHANNEL ESTIMATION FOR LOW-OVERHEAD COMMUNICATION IN A NETWORK 失效
标题翻译：网络中低通量通信的信道估计
公开(公告)号：US20110280329A1
公开(公告)日：2011-11-17
申请号：US13085352
申请日：2011-04-12
申请人： Lawrence W. Yonge, III , Hassan Kaywan Afkhamie , Arun Avudainayagam
发明人： Lawrence W. Yonge, III , Hassan Kaywan Afkhamie , Arun Avudainayagam
IPC分类号： H04L27/28 , H04B7/02
CPC分类号： H04W88/04 , H04L1/1635 , H04L1/1854 , H04L12/413 , H04L12/4135 , H04L25/0204 , H04L25/0232 , H04L25/0236 , H04L25/20 , H04L27/2602 , H04W84/047
摘要： A system for communicating between stations over a shared medium comprises: a first station comprising one or more antennas that transmit a waveform, the waveform including at least a first symbol, having a predetermined symbol length, comprising a first set of frequency components at predetermined carrier frequencies modulated with preamble information stored in a second station and a second set of frequency components at predetermined carrier frequencies modulated with information to be communicated to at least one station, with the carrier frequencies of the first and second sets of frequency components being integral multiples of a frequency interval determined by the inverse of the symbol length, wherein each of the one or more transmitting antennas transmits at least some carrier frequencies from each of the first and second sets; and at least a second station. The second station comprises one or more antennas, configured to: process sampled values from the first symbol received by each of the one or more antennas based on channel characteristics estimated from the first set of frequency components to decode information encoded on a first subset of the second set of frequency components, and process sampled values from the first symbol received by each of the one or more antennas based on channel characteristics estimated from the first set of frequency components and the first subset of the second set of frequency components to decode information encoded on a second subset of the second set of frequency components.
摘要翻译：一种用于通过共享介质在站间通信的系统包括：第一站，包括发送波形的一个或多个天线，所述波形包括具有预定符号长度的至少第一符号，所述第一符号包括预定载波的第一组频率分量用存储在第二站中的前导码信息调制的频率和以将被传送到至少一个站的信息调制的预定载波频率的第二组频率分量，第一和第二组频率分量的载波频率是由所述符号长度的倒数确定的频率间隔，其中所述一个或多个发送天线中的每一个发送来自所述第一和第二组中的每一个的至少一些载波频率; 和至少第二站。第二站包括一个或多个天线，其被配置为：基于从第一组频率分量估计的信道特性来处理从一个或多个天线中的每一个接收的第一符号的采样值，以解码编码在第一子集上的信息基于从所述第一组频率分量估计的信道特性和所述第二组频率分量的第一子集，从所述一个或多个天线中的每一个接收的所述第一符号处理采样值，以解码编码的信息的第二组频率分量在第二组频率分量的第二子集上。

3. 发明授权

US08781016B2 Channel estimation for low-overhead communication in a network 失效
标题翻译：用于网络中低开销通信的信道估计
公开(公告)号：US08781016B2
公开(公告)日：2014-07-15
申请号：US13085352
申请日：2011-04-12
申请人： Lawrence W. Yonge, III , Hassan Kaywan Afkhamie , Arun Avudainayagam
发明人： Lawrence W. Yonge, III , Hassan Kaywan Afkhamie , Arun Avudainayagam
IPC分类号： H04L27/28
CPC分类号： H04W88/04 , H04L1/1635 , H04L1/1854 , H04L12/413 , H04L12/4135 , H04L25/0204 , H04L25/0232 , H04L25/0236 , H04L25/20 , H04L27/2602 , H04W84/047
摘要： A receiving station receives a waveform that includes at least a first symbol of a predetermined symbol length and comprising a first set of frequency components at predetermined carrier frequencies modulated with preamble information and a second set of frequency components at predetermined carrier frequencies modulated with information. The receiving station processes sampled values from the first symbol based on channel characteristics estimated from the first set of frequency components to decode information encoded on a first subset of the second set of frequency components. The receiving station processes sampled values from the first symbol based on channel characteristics estimated from the first set of frequency components and the first subset of the second set of frequency components to decode information encoded on a second subset of the second set of frequency components.
摘要翻译：接收站接收至少包括预定符号长度的第一符号的波形，并且包括以预定的载波频率调制的第一组频率分量，前置信息和第二组频率分量以预定的载波调制信号。接收站基于从第一组频率分量估计的信道特性来处理来自第一符号的采样值，以解码编码在第二组频率分量的第一子集上的信息。接收站基于从第一组频率分量估计的信道特性和第二组频率分量的第一子集来处理来自第一符号的采样值，以解码编码在第二组频率分量的第二子集上的信息。

4. 发明授权

US08576938B2 Channel estimation for low-overhead communication in a network 有权
公开(公告)号：US08576938B2
公开(公告)日：2013-11-05
申请号：US13085352
申请日：2011-04-12
申请人： Lawrence W. Yonge, III , Hassan Kaywan Afkhamie , Arun Avudainayagam
发明人： Lawrence W. Yonge, III , Hassan Kaywan Afkhamie , Arun Avudainayagam
IPC分类号： H04L27/28
摘要： A receiving station receives a waveform that includes at least a first symbol of a predetermined symbol length and comprising a first set of frequency components at predetermined carrier frequencies modulated with preamble information and a second set of frequency components at predetermined carrier frequencies modulated with information. The receiving station processes sampled values from the first symbol based on channel characteristics estimated from the first set of frequency components to decode information encoded on a first subset of the second set of frequency components. The receiving station processes sampled values from the first symbol based on channel characteristics estimated from the first set of frequency components and the first subset of the second set of frequency components to decode information encoded on a second subset of the second set of frequency components.

5. 发明申请

US20110164514A1 Transmit Power Control 有权
标题翻译：发射功率控制
公开(公告)号：US20110164514A1
公开(公告)日：2011-07-07
申请号：US12979512
申请日：2010-12-28
申请人： Hassan Kaywan Afkhamie , Srinivas Katar , Anthony J. Cowan , Manjunath Krishnam
发明人： Hassan Kaywan Afkhamie , Srinivas Katar , Anthony J. Cowan , Manjunath Krishnam
IPC分类号： H04W52/04
CPC分类号： H04W52/42 , H04B2203/5445 , H04W52/367
摘要： A method for communicating among nodes in a network includes determining, by a transmitter, a first frequency band and at least a second frequency band to be used for communicating data packets, wherein a maximum allowable power spectral density in the first frequency band is greater than a maximum allowable power spectral density in the second frequency band. The method also includes adjusting power spectral density for a first group of frequencies in the first frequency band such that the adjusted power spectral density of the first group does not exceed the maximum allowable power spectral density of the first frequency band and a quantization noise introduced by the transmitter is less than a threshold value for a signal transmitted in the second frequency band. The method further includes modulating at least a portion of a data packet transmitted by the transmitter to at least a first receiver in accordance with the adjusted power spectral density.
摘要翻译：一种用于在网络中的节点之间通信的方法包括由发射机确定要用于传送数据分组的第一频带和至少第二频带，其中第一频带中的最大可允许功率谱密度大于第二频带中的最大允许功率谱密度。该方法还包括调整第一频带中的第一组频率的功率谱密度，使得第一组的调整功率谱密度不超过第一频带的最大允许功率谱密度，以及由第一频带引入的量化噪声所述发射机小于在所述第二频带中发射的信号的阈值。该方法还包括根据调整的功率谱密度将由发射机发送的数据分组的至少一部分调制到至少第一接收机。

6. 发明授权

US08537705B2 Transmit power control 有权
标题翻译：发射功率控制
公开(公告)号：US08537705B2
公开(公告)日：2013-09-17
申请号：US12979512
申请日：2010-12-28
申请人： Hassan Kaywan Afkhamie , Srinivas Katar , Anthony J. Cowan , Manjunath Krishnam
发明人： Hassan Kaywan Afkhamie , Srinivas Katar , Anthony J. Cowan , Manjunath Krishnam
IPC分类号： H04L12/26
CPC分类号： H04W52/42 , H04B2203/5445 , H04W52/367
摘要： A method for communicating among nodes in a network includes determining, by a transmitter, a first frequency band and at least a second frequency band to be used for communicating data packets, wherein a maximum allowable power spectral density in the first frequency band is greater than a maximum allowable power spectral density in the second frequency band. The method also includes adjusting power spectral density for a first group of frequencies in the first frequency band such that the adjusted power spectral density of the first group does not exceed the maximum allowable power spectral density of the first frequency band and a quantization noise introduced by the transmitter is less than a threshold value for a signal transmitted in the second frequency band. The method further includes modulating at least a portion of a data packet transmitted by the transmitter to at least a first receiver in accordance with the adjusted power spectral density.
摘要翻译：一种用于在网络中的节点之间通信的方法包括由发射机确定要用于传送数据分组的第一频带和至少第二频带，其中第一频带中的最大可允许功率谱密度大于第二频带中的最大允许功率谱密度。该方法还包括调整第一频带中的第一组频率的功率谱密度，使得第一组的调整功率谱密度不超过第一频带的最大允许功率谱密度，以及由第一频带引入的量化噪声所述发射机小于在所述第二频带中发射的信号的阈值。该方法还包括根据调整的功率谱密度将由发射机发送的数据分组的至少一部分调制到至少第一接收机。

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