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11. 发明申请

US20090117917A1 METHODS AND APPARATUS FOR POSITION LOCATION IN A WIRELESS NETWORK 有权
标题翻译：无线网络中位置定位的方法和设备
公开(公告)号：US20090117917A1
公开(公告)日：2009-05-07
申请号：US12338901
申请日：2008-12-18
申请人： Krishna Kiran Mukkavilli , Fuyun Ling , Gordon Kent Walker , Murali Ramaswamy Chari
发明人： Krishna Kiran Mukkavilli , Fuyun Ling , Gordon Kent Walker , Murali Ramaswamy Chari
IPC分类号： H04W24/00
CPC分类号： G01S5/0205 , H04L5/0053 , H04W24/00 , H04W64/00
摘要： Methods and apparatus for position location in a wireless network. In an aspect, a method is provided that includes determining whether a symbol to be transmitted is an active symbol, wherein the symbol comprises a plurality of subcarriers, and encoding identification information on a first portion of subcarriers if it is determined that the symbol is the active symbol. The method also includes encoding idle information on a second portion of subcarriers if it is determined that the symbol in not the active symbol. In an aspect, an apparatus includes detector logic configured to decode a plurality of symbols to determine identification information that identifies a plurality of transmitters, and to determine a plurality of channel estimate associated with the plurality of transmitters. The apparatus also includes position determination logic configured to calculate a device position based on the plurality of transmitters and the plurality of channel estimates.
摘要翻译：无线网络中位置定位的方法和装置。一方面，提供了一种方法，其包括确定要发送的符号是否是活动符号，其中，所述符号包括多个子载波，并且如果确定所述符号是所述符号是所述符号，则对所述子载波的第一部分编码识别信息活动符号如果确定不在活动符号中的符号，则该方法还包括对子载波的第二部分上的空闲信息进行编码。一方面，一种装置包括检测器逻辑，其被配置为对多个符号进行解码以确定标识多个发射机的识别信息，并且确定与多个发射机相关联的多个信道估计。该装置还包括位置确定逻辑，其被配置为基于多个发射机和多个信道估计来计算设备位置。

12. 发明授权

US08489124B2 Methods and apparatus for position location in a wireless network 有权
公开(公告)号：US08489124B2
公开(公告)日：2013-07-16
申请号：US12338901
申请日：2008-12-18
申请人： Krishna Kiran Mukkavilli , Fuyun Ling , Gordon Kent Walker , Murali Ramaswamy Chari
发明人： Krishna Kiran Mukkavilli , Fuyun Ling , Gordon Kent Walker , Murali Ramaswamy Chari
IPC分类号： H04W24/00 , H04W4/00
CPC分类号： G01S5/0205 , H04L5/0053 , H04W24/00 , H04W64/00
摘要： Methods and apparatus for position location in a wireless network. In an aspect, a method is provided that includes determining whether a symbol to be transmitted is an active symbol, wherein the symbol comprises a plurality of subcarriers, and encoding identification information on a first portion of subcarriers if it is determined that the symbol is the active symbol. The method also includes encoding idle information on a second portion of subcarriers if it is determined that the symbol in not the active symbol. In an aspect, an apparatus includes detector logic configured to decode a plurality of symbols to determine identification information that identifies a plurality of transmitters, and to determine a plurality of channel estimate associated with the plurality of transmitters. The apparatus also includes position determination logic configured to calculate a device position based on the plurality of transmitters and the plurality of channel estimates.

13. 发明申请

US20070153743A1 Methods and apparatus for position location in a wireless network 有权
标题翻译：无线网络中位置定位的方法和装置
公开(公告)号：US20070153743A1
公开(公告)日：2007-07-05
申请号：US11517119
申请日：2006-09-06
申请人： Krishna Kiran Mukkavilli , Fuyun Ling , Gordon Kent Walker , Murali Ramaswamy Chari
发明人： Krishna Kiran Mukkavilli , Fuyun Ling , Gordon Kent Walker , Murali Ramaswamy Chari
IPC分类号： H04Q7/00
CPC分类号： G01S5/0205 , H04L5/0053 , H04W24/00 , H04W64/00
摘要： Methods and apparatus for position location in a wireless network. In an aspect, a method is provided that includes determining whether a symbol to be transmitted is an active symbol, wherein the symbol comprises a plurality of subcarriers, and encoding identification information on a first portion of subcarriers if it is determined that the symbol is the active symbol. The method also includes encoding idle information on a second portion of subcarriers if it is determined that the symbol in not the active symbol. In an aspect, an apparatus includes detector logic configured to decode a plurality of symbols to determine identification information that identifies a plurality of transmitters, and to determine a plurality of channel estimate associated with the plurality of transmitters. The apparatus also includes position determination logic configured to calculate a device position based on the plurality of transmitters and the plurality of channel estimates.
摘要翻译：无线网络中位置定位的方法和装置。一方面，提供了一种方法，其包括确定要发送的符号是否是活动符号，其中，所述符号包括多个子载波，并且如果确定所述符号是所述符号是所述符号，则对所述子载波的第一部分编码识别信息活动符号如果确定不在活动符号中的符号，则该方法还包括对子载波的第二部分上的空闲信息进行编码。一方面，一种装置包括检测器逻辑，其被配置为对多个符号进行解码以确定标识多个发射机的识别信息，并且确定与多个发射机相关联的多个信道估计。该装置还包括位置确定逻辑，其被配置为基于多个发射机和多个信道估计来计算设备位置。

14. 发明授权

US08509051B2 Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system 失效
公开(公告)号：US08509051B2
公开(公告)日：2013-08-13
申请号：US11933264
申请日：2007-10-31
申请人： Fuyun Ling , Murali Ramaswamy Chari , Ashok Mantravadi , Raghuraman Krishnamoorthi
发明人： Fuyun Ling , Murali Ramaswamy Chari , Ashok Mantravadi , Raghuraman Krishnamoorthi
IPC分类号： H04J11/00
CPC分类号： H04L5/003 , H04L5/0007 , H04L5/0037 , H04L5/0039 , H04L5/0041 , H04L5/0053 , H04L5/0064 , H04L5/0094
摘要： Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.

15. 发明授权

US08433016B2 Narrow-band interference canceller 有权
标题翻译：窄带干扰消除器
公开(公告)号：US08433016B2
公开(公告)日：2013-04-30
申请号：US12780600
申请日：2010-05-14
申请人： Bojan Vrcelj , Ashok Mantravadi , Fuyun Ling , Linbo Li , Raghuraman Krishnamoorthi , Murali Ramaswamy Chari , Vinay Murthy
发明人： Bojan Vrcelj , Ashok Mantravadi , Fuyun Ling , Linbo Li , Raghuraman Krishnamoorthi , Murali Ramaswamy Chari , Vinay Murthy
IPC分类号： H04B1/10
CPC分类号： H04L25/03044 , H04B1/1036 , H04B1/109 , H04B15/00 , H04B2215/061 , H04L2025/03477
摘要： The disclosure is directed to a receiver, and methods therefor, including an automatic gain control circuit with a first digital variable gain amplifier that outputs digital samples based on a modulated wireless signal, an interference canceller configured to filter the digital samples using a least mean squares algorithm to reduce narrowband interference, and a second DVGA configured to amplify the filtered digital samples.
摘要翻译：本发明涉及一种接收机及其方法，包括具有基于调制无线信号输出数字样本的第一数字可变增益放大器的自动增益控制电路，被配置为使用最小均方对数字采样进行滤波的干扰消除器算法来减少窄带干扰，第二个DVGA被配置为放大经滤波的数字样本。

16. 发明授权

US07948907B2 Selective network switching in a wireless broadcast network 有权
标题翻译：无线广播网络中的选择性网络切换
公开(公告)号：US07948907B2
公开(公告)日：2011-05-24
申请号：US11343380
申请日：2006-01-30
申请人： Michael Mao Wang , Ashok Mantravadi , Murali Ramaswamy Chari
发明人： Michael Mao Wang , Ashok Mantravadi , Murali Ramaswamy Chari
IPC分类号： H04L12/26 , H04W4/00
CPC分类号： H04B1/3805 , H04H20/26 , H04H40/18
摘要： The disclosure is directed to a mobile communication device that may receive wireless broadcast signals from a number of different base stations or transmitters. As the location of the device moves relative to the transmitters, one transmitter will likely be identified as the transmitter broadcast the strongest, or highest quality, signal. When that determination is made, the user of the mobile device is presented the opportunity to switch to receiving that transmitters signal. Based on the user's reply, the device may remain with the current transmitter, even though it does not have the strongest signal, or the device may be configured to acquire and start receiving the new transmitter's signal. The measuring of the quality of a transmitter's signal may be based on a composite score that combines a number of individual measurements made over a predetermined period of time.
摘要翻译：本公开针对可从多个不同基站或发射机接收无线广播信号的移动通信设备。随着设备的位置相对于发射机移动，一个发射机可能被识别为发射机广播最强或最高质量的信号。当进行该确定时，向移动设备的用户呈现切换到接收该发射机信号的机会。基于用户的答复，即使设备没有最强的信号，设备仍然可以保持当前的发射机，或者设备可能被配置为获取和开始接收新的发射机的信号。发射机信号的质量的测量可以基于组合在预定时间段内进行的多个单独测量的综合得分。

17. 发明授权

US09391751B2 System and method for frequency diversity 有权
标题翻译：频率分集的系统和方法
公开(公告)号：US09391751B2
公开(公告)日：2016-07-12
申请号：US12179505
申请日：2008-07-24
申请人： Ashok Mantravadi , Murali Ramaswamy Chari , Michael Mao Wang , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
发明人： Ashok Mantravadi , Murali Ramaswamy Chari , Michael Mao Wang , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
IPC分类号： H04B7/216 , H04L5/00 , H03M13/27 , H03M13/29 , H03M13/31 , H04L1/00 , H04L27/26
CPC分类号： H04L5/0044 , H03M13/271 , H03M13/2957 , H03M13/31 , H04L1/0066 , H04L1/0071 , H04L5/0007 , H04L5/0042 , H04L5/0064 , H04L27/2602 , H04L27/2634
摘要： A system and method for frequency diversity uses interleaving in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) with various FFT sizes. Subcarriers of one or more interlaces are interleaved in a bit reversal fashion and the one or more interlaces are interleaved.
摘要翻译：用于频率分集的系统和方法使用利用具有各种FFT大小的正交频分复用（OFDM）的无线通信系统中的交织。一个或多个交错的子载波以位反向方式进行交织，并且所述一个或多个交错交织。

18. 发明申请

US20100220821A1 NARROW-BAND INTERFERENCE CANCELLER 有权
标题翻译：窄带干扰CANCELLER
公开(公告)号：US20100220821A1
公开(公告)日：2010-09-02
申请号：US12780600
申请日：2010-05-14
申请人： BOJAN VRCELJ , Ashok Mantravadi , Fuyun Ling , Linbo Li , Raghuraman Krishnamoorthi , Murali Ramaswamy Chari , Vinay Murthy
发明人： BOJAN VRCELJ , Ashok Mantravadi , Fuyun Ling , Linbo Li , Raghuraman Krishnamoorthi , Murali Ramaswamy Chari , Vinay Murthy
IPC分类号： H04L27/08
CPC分类号： H04L25/03044 , H04B1/1036 , H04B1/109 , H04B15/00 , H04B2215/061 , H04L2025/03477
摘要： The disclosure is directed to a receiver, and methods therefor, including an automatic gain control circuit with a first digital variable gain amplifier that outputs digital samples based on a modulated wireless signal, an interference canceller configured to filter the digital samples using a least mean squares algorithm to reduce narrowband interference, and a second DVGA configured to amplify the filtered digital samples.
摘要翻译：本发明涉及一种接收机及其方法，包括具有基于调制无线信号输出数字样本的第一数字可变增益放大器的自动增益控制电路，被配置为使用最小均方对数字采样进行滤波的干扰消除器算法来减少窄带干扰，第二个DVGA被配置为放大经滤波的数字样本。

19. 发明申请

US20080107217A1 NARROW-BAND INTERFERENCE CANCELLER 有权
标题翻译：窄带干扰CANCELLER
公开(公告)号：US20080107217A1
公开(公告)日：2008-05-08
申请号：US11557035
申请日：2006-11-06
申请人： Bojan Vrcelj , Ashok Mantravadi , Fuyun Ling , Linbo Li , Raghuraman Krishnamoorthi , Murali Ramaswamy Chari , Vinay Murthy
发明人： Bojan Vrcelj , Ashok Mantravadi , Fuyun Ling , Linbo Li , Raghuraman Krishnamoorthi , Murali Ramaswamy Chari , Vinay Murthy
IPC分类号： H04B1/10
CPC分类号： H04L25/03044 , H04B1/1036 , H04B1/109 , H04B15/00 , H04B2215/061 , H04L2025/03477
摘要： The disclosure is directed to a receiver. The receiver includes an interference canceller configured to filter digital samples produced from a modulated signal transmitted over a wireless channel, and a digital variable gain amplifier (DVGA) configured to amplify the filtered digital samples.
摘要翻译：本公开涉及一种接收机。接收机包括被配置为对通过无线信道传输的调制信号产生的数字样本进行滤波的干扰消除器，以及被配置成放大经滤波的数字样本的数字可变增益放大器（DVGA）。

20. 发明申请

US20130156124A1 SYSTEM AND METHOD FOR FREQUENCY DIVERSITY 有权
标题翻译：频域多样性的系统与方法
公开(公告)号：US20130156124A1
公开(公告)日：2013-06-20
申请号：US13767834
申请日：2013-02-14
申请人： Michael Mao Wang , Murali Ramaswamy Chari , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
发明人： Michael Mao Wang , Murali Ramaswamy Chari , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
IPC分类号： H04L27/26
CPC分类号： H04L27/2601 , H03M13/258 , H03M13/271 , H03M13/2957 , H03M13/31 , H04L1/0071 , H04L1/04 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0064 , H04L5/0083 , H04L27/2626 , H04L27/2634
摘要： A system and method for frequency diversity uses interleaving in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) with various FFT sizes. Subcarriers of one or more interlaces are interleaved in a bit reversal fashion and the one or more interlaces are interleaved in the bit reversal fashion.
摘要翻译：用于频率分集的系统和方法使用利用具有各种FFT大小的正交频分复用（OFDM）的无线通信系统中的交织。一个或多个交错的子载波以位反向方式进行交织，并且该一个或多个交织以比特反转方式进行交织。

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