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11. 发明申请

US20110243284A1 Delay Restricted Channel Estimation for Multi-Carrier Systems 有权
标题翻译：多载波系统的延迟限制信道估计
公开(公告)号：US20110243284A1
公开(公告)日：2011-10-06
申请号：US13163996
申请日：2011-06-20
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04B1/10
CPC分类号： H04L27/2647 , H04L25/0216 , H04L25/022
摘要： A method includes performing a channel estimation to obtain an estimate of the channel based on a received signal. A subset of elements of the estimate are suppressed to obtain a suppressed estimate of the channel. The method includes multiplying the suppressed estimate of the channel by a matrix to obtain a delay restricted estimate of the channel.
摘要翻译：一种方法包括执行信道估计以基于接收信号获得信道的估计。抑制估计的元素的子集以获得抑制的信道估计。该方法包括将抑制的信道估计乘以矩阵以获得信道的延迟受限估计。

12. 发明授权

US07657269B2 Method and apparatus for locating multimode communication devices 有权
标题翻译：用于定位多模通信设备的方法和装置
公开(公告)号：US07657269B2
公开(公告)日：2010-02-02
申请号：US11220256
申请日：2005-09-06
申请人： Lalitha Suryanarayana , Anil Doradla , Michael Grannan , Arunabha Ghosh , Rias Muhamed
发明人： Lalitha Suryanarayana , Anil Doradla , Michael Grannan , Arunabha Ghosh , Rias Muhamed
IPC分类号： H04W24/00 , H04W11/04 , H04M3/42
CPC分类号： H04W64/00
摘要： A location services controller (104) for locating multimode communication devices (MCDs) (102) has a communication element (302) for communicating with two or more communication networks (106) and MCDs coupled thereto, a memory (304), and a processor (306) for controlling operations thereof. The processor is programmed to request (402) location information of an MCD from at least two sources selected among a group that can include the MCD and one or more communication networks coupled to the MCD, and determine (426) from the sources of location information the location of the MCD.
摘要翻译：用于定位多模通信设备（MCD）（102）的位置服务控制器（104）具有通信元件（302），用于与耦合到其的两个或多个通信网络（106）和MCD进行通信，存储器（304）和处理器（306），用于控制其操作。处理器被编程为从可以包括MCD的组和与MCD耦合的一个或多个通信网络中选择的至少两个源请求（402）MCD的位置信息，并且从位置信息源确定（426） MCD的位置。

13. 发明申请

US20090274252A1 Delay Restricted Channel Estimation for Multi-Carrier Systems 有权
标题翻译：多载波系统的延迟限制信道估计
公开(公告)号：US20090274252A1
公开(公告)日：2009-11-05
申请号：US12467764
申请日：2009-05-18
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04B1/10
CPC分类号： H04L27/2647 , H04L25/0216 , H04L25/022
摘要： A method is disclosed that includes channel estimation for a multi-carrier modulation of a plurality of subcarriers. The method includes performing a first channel estimation to obtain a first estimate of a channel based on a received signal. The method further includes suppressing a portion of elements of the first estimate of the channel to obtain a suppressed estimate of the channel. The method also includes multiplying the suppressed estimate of the channel by a first matrix to obtain a delay restricted estimate of the channel.
摘要翻译：公开了一种包括用于多个子载波的多载波调制的信道估计的方法。该方法包括执行第一信道估计以基于接收到的信号获得信道的第一估计。该方法还包括抑制信道的第一估计的元素的一部分以获得信道的抑制估计。该方法还包括将抑制的信道估计乘以第一矩阵以获得信道的延迟限制估计。

14. 发明申请

US20070058735A1 Method and apparatus for equalizing signals 有权
标题翻译：用于均衡信号的方法和装置
公开(公告)号：US20070058735A1
公开(公告)日：2007-03-15
申请号：US11225635
申请日：2005-09-13
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04K1/10
CPC分类号： H04L25/03057 , H04B7/2628 , H04L25/0202 , H04L25/03012 , H04L25/03159 , H04L27/265 , H04W72/04
摘要： A system and apparatus are disclosed for a method and apparatus for equalizing signals. An apparatus that incorporates teachings of the present disclosure may include, for example, an equalizer (100) having a channel estimation calculator (102) for calculating a time domain channel estimation from a baseband signal, an FFT processor (104) for translating the time domain channel estimation to a frequency domain channel estimation, a tap weight calculator (106) for calculating a frequency domain tap weight according to the frequency domain channel estimation, an inverse FFT processor (108) for translating the frequency domain tap weight calculation to a time domain tap weight calculation, and a filter (110) for equalizing the baseband signal according to the time domain tap weight calculation.
摘要翻译：公开了一种用于均衡信号的方法和装置的系统和装置。结合本公开的教导的装置可以包括例如具有用于从基带信号计算时域信道估计的信道估计计算器（102）的均衡器（100），用于将时间对于频域信道估计的域信道估计，用于根据频域信道估计计算频域抽头加权的抽头权重计算器（106），用于将频域抽头权重计算转换为时间的逆FFT处理器（108）域抽头权重计算，以及用于根据时域抽头权重计算对基带信号进行均衡的滤波器（110）。

15. 发明授权

US08363694B2 Delay-induced scattering with phase randomization and partitioned frequency hopping 有权
标题翻译：相位随机化和分频跳频的延迟诱导散射
公开(公告)号：US08363694B2
公开(公告)日：2013-01-29
申请号：US11953158
申请日：2007-12-10
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04B1/00 , H04L27/00
CPC分类号： H04B1/713 , H04B1/715 , H04B7/2621 , H04B7/2643 , H04B2001/7154 , H04N19/63
摘要： A method includes partitioning a set of hopping carrier frequencies into disjoint sets including a first set and a second set such that a frequency correlation between a first hopping carrier frequency of the first set and a second hopping carrier frequency of the second set is approximately zero. The method also includes generating at least one copy of a signal, which includes a plurality of time division multiple access (TMDA) frames. The at least one copy of the signal has a fixed delay and a random phase relative to the signal. The method further includes transmitting the signal and the at least one copy of the signal using selected hopping carrier frequencies from the first and second sets such that a frame is sent using the first hopping carrier frequency from the first set and an adjacent second frame is sent using the second hopping carrier frequency from the second set.
摘要翻译：一种方法包括将一组跳频载波频率划分为包括第一组和第二组的不相交组，使得第一组的第一跳频载波频率和第二组的第二跳频载波频率之间的频率相关近似为零。该方法还包括产生包括多个时分多址（TMDA）帧的信号的至少一个副本。信号的至少一个拷贝具有固定的延迟和相对于该信号的随机相位。该方法还包括使用来自第一和第二组的选择的跳频载波频率来发送信号和该信号的至少一个拷贝，使得使用第一组的第一跳频载波频率发送帧，并且发送相邻的第二帧使用来自第二组的第二跳频载波频率。

16. 发明授权

US08036685B2 Method and apparatus for locating multimode communication devices 有权
标题翻译：用于定位多模通信设备的方法和装置
公开(公告)号：US08036685B2
公开(公告)日：2011-10-11
申请号：US12637505
申请日：2009-12-14
申请人： Lalitha Suryanarayana , Anil Doradla , Michael Grannan , Arunabha Ghosh , Rias Muhamed
发明人： Lalitha Suryanarayana , Anil Doradla , Michael Grannan , Arunabha Ghosh , Rias Muhamed
IPC分类号： H04W24/00 , H04B7/00 , H04M3/42
CPC分类号： H04W64/00
摘要： A location services controller (104) for locating multimode communication devices (MCDs) (102) has a communication element (302) for communicating with two or more communication networks (106) and MCDs coupled thereto, a memory (304), and a processor (306) for controlling operations thereof. The processor is programmed to request (402) location information of an MCD from at least two sources selected among a group that can include the MCD and one or more communication networks coupled to the MCD, and determine (426) from the sources of location information the location of the MCD.
摘要翻译：用于定位多模通信设备（MCD）（102）的位置服务控制器（104）具有通信元件（302），用于与耦合到其的两个或多个通信网络（106）和MCD进行通信，存储器（304）和处理器（306），用于控制其操作。处理器被编程为从可以包括MCD的组和与MCD耦合的一个或多个通信网络中选择的至少两个源请求（402）MCD的位置信息，并且从位置信息源确定（426） MCD的位置。

17. 发明申请

US20080130621A1 Delay-Induced Scattering with Phase Randomization and Partitioned Frequency Hopping 有权
标题翻译：相位随机化和分段跳频的延迟诱导散射
公开(公告)号：US20080130621A1
公开(公告)日：2008-06-05
申请号：US11953158
申请日：2007-12-10
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04B7/212
CPC分类号： H04B1/713 , H04B1/715 , H04B7/2621 , H04B7/2643 , H04B2001/7154 , H04N19/63
摘要： A method includes partitioning a set of hopping carrier frequencies into disjoint sets including a first set and a second set such that a frequency correlation between a first hopping carrier frequency of the first set and a second hopping carrier frequency of the second set is approximately zero. The method also includes generating at least one copy of a signal, which includes a plurality of time division multiple access (TDMA) frames. The at least one copy of the signal has a fixed delay and a random phase relative to the signal. The method further includes transmitting the signal and the at least one copy of the signal using selected hopping carrier frequencies from the first and second sets such that a TDMA frame is sent using the first hopping carrier frequency from the first set and an adjacent second frame is sent using the second hopping carrier frequency from the second set.
摘要翻译：一种方法包括将一组跳频载波频率划分为包括第一组和第二组的不相交组，使得第一组的第一跳频载波频率和第二组的第二跳频载波频率之间的频率相关近似为零。该方法还包括产生包括多个时分多址（TDMA）帧的信号的至少一个副本。信号的至少一个拷贝具有固定的延迟和相对于该信号的随机相位。该方法还包括使用来自第一和第二组的选择的跳频载波频率来发射信号和该信号的至少一个拷贝，使得使用第一组的第一跳频载波频率发送TDMA帧，并且相邻的第二帧是使用第二组的第二跳频载波频率发送。

18. 发明授权

US07161973B2 Pilot aided adaptive minimum mean square interference cancellation and detection 失效
标题翻译：导频辅助自适应最小均方干扰消除和检测
公开(公告)号：US07161973B2
公开(公告)日：2007-01-09
申请号：US10320526
申请日：2002-12-17
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04B1/71055 , H04B2201/70701 , H04B2201/70703
摘要： A modified adaptive minimum mean square error (MMSE) receiver detects a spread spectrum signal, minimizing interference among multiple users. The receiver receives multiple pilot bits and corresponding data bits. A channel is estimated using at least one of the received pilot bits and, simultaneously, the data bits are detected based on the pilot bit and an inverse of a gain of the receiver. The spectrum signal may be spread in accordance with a wideband code division multiple access (W-CDMA) format, in which the pilot bits are modified to include a predetermined bit sequence of alternating ones and negative ones.
摘要翻译：修改的自适应最小均方误差（MMSE）接收机检测扩频信号，使多个用户之间的干扰最小化。接收机接收多个导频位和相应的数据位。使用接收到的导频比特中的至少一个估计信道，并且同时，基于导频比特检测数据比特和接收机的增益的倒数。频谱信号可以根据宽带码分多址（W-CDMA）格式扩展，其中导频比特被修改为包括交替的和负的预定比特序列。

19. 发明授权

US08713098B1 Method and system for migrating object update messages through synchronous data propagation 有权
标题翻译：通过同步数据传播迁移对象更新消息的方法和系统
公开(公告)号：US08713098B1
公开(公告)日：2014-04-29
申请号：US13251000
申请日：2011-09-30
申请人： Atul Adya , Gregory H. Cooper , Daniel Sumers Myers , Arunabha Ghosh
发明人： Atul Adya , Gregory H. Cooper , Daniel Sumers Myers , Arunabha Ghosh
IPC分类号： G06F7/00 , G06F15/16 , G06F15/177 , G06F12/00 , G06F9/44
CPC分类号： H04L67/2857 , H04L63/0807 , H04L67/1004 , H04L67/148
摘要： A computer-implemented method in a distributed network system is disclosed. The computer-implemented method includes: receiving, at a server, a first object update message from a server-side application, wherein the first object update message includes a first object identifier; identifying, among a plurality of object-client registration records, an object-client registration record that includes the first object identifier; updating the object-client registration record in accordance with the first object update message; selecting a set of client identifiers associated with the first object identifier from the object-client registration record; and, for a first client identifier in the selected set of client identifiers, sending a second object update message to a first client device associated with the first client identifier, wherein the second object update message includes the first object identifier.
摘要翻译：公开了一种分布式网络系统中计算机实现的方法。计算机实现的方法包括：在服务器处从服务器端应用接收第一对象更新消息，其中所述第一对象更新消息包括第一对象标识符; 在多个对象 - 客户端注册记录中识别包括所述第一对象标识符的对象 - 客户端注册记录; 根据第一对象更新消息更新对象 - 客户端注册记录; 从所述对象 - 客户端注册记录中选择与所述第一对象标识符相关联的一组客户识别符; 并且对于所选择的客户端标识符集合中的第一客户端标识符，向与所述第一客户端标识符相关联的第一客户端设备发送第二对象更新消息，其中所述第二对象更新消息包括所述第一对象标识符。

20. 发明授权

US08345733B2 Method and apparatus for equalizing signals 有权
标题翻译：用于均衡信号的方法和装置
公开(公告)号：US08345733B2
公开(公告)日：2013-01-01
申请号：US11225635
申请日：2005-09-13
申请人： Arunabha Ghosh
发明人： Arunabha Ghosh
IPC分类号： H04B1/38 , H04L5/16
CPC分类号： H04L25/03057 , H04B7/2628 , H04L25/0202 , H04L25/03012 , H04L25/03159 , H04L27/265 , H04W72/04
摘要： A system and apparatus are disclosed for a method and apparatus for equalizing signals. An apparatus that incorporates teachings of the present disclosure may include, for example, an equalizer (100) having a channel estimation calculator (102) for calculating a time domain channel estimation from a baseband signal, an FFT processor (104) for translating the time domain channel estimation to a frequency domain channel estimation, a tap weight calculator (106) for calculating a frequency domain tap weight according to the frequency domain channel estimation, an inverse FFT processor (108) for translating the frequency domain tap weight calculation to a time domain tap weight calculation, and a filter (110) for equalizing the baseband signal according to the time domain tap weight calculation.
摘要翻译：公开了一种用于均衡信号的方法和装置的系统和装置。结合本公开的教导的装置可以包括例如具有用于从基带信号计算时域信道估计的信道估计计算器（102）的均衡器（100），用于将时间对于频域信道估计的域信道估计，用于根据频域信道估计计算频域抽头加权的抽头权重计算器（106），用于将频域抽头权重计算转换为时间的逆FFT处理器（108）域抽头权重计算，以及用于根据时域抽头权重计算对基带信号进行均衡的滤波器（110）。

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