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1. 发明申请

WO2007082283A3 DECODER AND METHOD FOR DECODING A TAIL-BITING CONVOLUTIONAL ENCODED SIGNAL USING VITERBI DECODING SCHEME 审中-公开
公开(公告)号：WO2007082283A3
公开(公告)日：2007-07-19
申请号：PCT/US2007/060417
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , GHO, Gwang-hyun , CHOI, Won-joon , ZENG, Chaohuang
发明人： GHO, Gwang-hyun , CHOI, Won-joon , ZENG, Chaohuang
IPC分类号： H03M13/03
摘要： A decoder and method for decoding a tail-biting convolutional encoded signal using Viterbi decoding scheme performs a traceback operation for a first portion of a total code block, which includes a code block of the tail-biting convolutional encoded signal and a padded block. During the traceback operation for the first portion, a particular state at a predefined position within the first portion is stored as a circular state. The circular state is used as a traceback starting state for at least one subsequent portion of the total code block to produce a decoded signal of the code block.

2. 发明申请

WO2007082280A3 OFDMA DEVICE AND METHOD OF CORRECTING FREQUENCY OFFSET IN OFDMA SIGNALS 审中-公开
标题翻译： OFDMA设备和在OFDMA信号中校正频率偏移的方法
公开(公告)号：WO2007082280A3
公开(公告)日：2008-02-14
申请号：PCT/US2007060414
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD , ZENG CHAOHUANG , CHOI WON-JOON , YANG JINGNONG
发明人： ZENG CHAOHUANG , CHOI WON-JOON , YANG JINGNONG
IPC分类号： H04K1/10
CPC分类号： H04L27/266 , H04L5/023 , H04L27/2659 , H04L27/2662 , H04L27/2675
摘要： An Orthogonal Frequency Division Multiple Access (OFDMA) device and method of correcting frequency offset in OFDMA signals computes an estimated frequency offset, which is used for mixing an incoming OFDMA signal with a frequency offset-compensated mixer signal and for digitally correcting sampling errors in the signal.
摘要翻译：正交频分多址（OFDMA）设备和OFDMA信号中的频偏校正方法计算估计频偏，其用于混合输入OFDMA信号与频偏补偿混频器信号，并用于数字校正采样误差信号。

3. 发明申请

WO2007082285A2 DEVICE AND METHOD OF PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：基于OFDM无线通信系统的信道估计的设备及方法
公开(公告)号：WO2007082285A2
公开(公告)日：2007-07-19
申请号：PCT/US2007/060419
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , SONG, Kee-bong , ZENG, Chaohuang , CHOI, Won-joon
发明人： SONG, Kee-bong , ZENG, Chaohuang , CHOI, Won-joon
IPC分类号： H04K1/10
CPC分类号： H04L25/0232 , H04L5/023 , H04L27/2647
摘要： A device and method of performing channel estimation for an OFDM- based wireless communication system performs a Least Square interpolation with a statistical channel profile consideration on pilot channel estimates to derive data channel estimates at data subcarrier locations.
摘要翻译：执行基于OFDM的无线通信系统的信道估计的装置和方法在导频信道估计上执行具有统计信道简档考虑的最小二乘插值，以导出数据子载波位置处的数据信道估计。

4. 发明申请

WO2007082286A3 DEVICE AND METHOD FOR PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED SIGNALS WITH VARIABLE PILOT SUBCARRIER SPACING 审中-公开
标题翻译：用于基于OFDM的信号进行信道估计的设备和方法，其具有可变引导子载波间隔
公开(公告)号：WO2007082286A3
公开(公告)日：2008-01-17
申请号：PCT/US2007060421
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD , SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
发明人： SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
IPC分类号： H04J11/00
CPC分类号： H04W24/00 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/0232 , H04W48/08
摘要： A device and method for performing channel estimation for an OFDM- based wireless communication system modifies pilot subcarrier spacing to use a set of interpolation coefficients associated with a different pilot subcarrier spacing.
摘要翻译：用于对基于OFDM的无线通信系统执行信道估计的装置和方法修改导频子载波间隔以使用与不同导频子载波间隔相关联的一组内插系数。

5. 发明申请

WO2003050560A1 RADAR DETECTION AND DYNAMIC FREQUENCY SELECTION FOR WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网的雷达检测和动态频率选择
公开(公告)号：WO2003050560A1
公开(公告)日：2003-06-19
申请号：PCT/US2002/018705
申请日：2002-06-11
申请人： ATHEROS COMMUNICATIONS, INC. , MCFARLAND, William , ZENG, Chaohuang , DHAMDHERE, Deepak
发明人： MCFARLAND, William , ZENG, Chaohuang , DHAMDHERE, Deepak
IPC分类号： G01S7/02
CPC分类号： G01S7/021 , H04K3/226 , H04K3/822 , H04K2203/18 , H04W24/00 , H04W72/02 , H04W84/12
摘要： A system for detecting and avoiding interference with radar signals in wireless network devices is described. The receiver circuit of the device receives incoming 5 GHz traffic. Such traffic could comprise both WLAN traffic as well as radar signals from radar systems. The incoming packets are treated as an input event, and are screened to be examined as radar pulses. Radar pulses are identified using the length of the detected event. The radar pulses are examined using frequency domain analysis, and the packet train is examined to find gaps between radar pulses. The periodic nature of the packet is determined using frequency domain and time domain analysis to calculate the period of the pulse train. Particular intervals within the pulse train are analyzed using threshold numbers of periodic pulses within the interval and threshold power levels for the pulses. The calculated period information is used to identify the radar source and screen non-radar traffic.
摘要翻译：描述了一种用于在无线网络设备中检测和避免对雷达信号的干扰的系统。设备的接收机电路接收5 GHz流量。这样的业务可以包括WLAN业务以及来自雷达系统的雷达信号。输入的数据包被视为输入事件，并被筛选为雷达脉冲。使用检测到的事件的长度来识别雷达脉冲。使用频域分析检查雷达脉冲，并检查分组列，以发现雷达脉冲之间的间隙。使用频域和时域分析确定分组的周期性，以计算脉冲序列的周期。使用脉冲间隔内的周期脉冲的阈值数和脉冲的阈值功率电平来分析脉冲串内的特定间隔。计算的周期信息用于识别雷达源和屏幕非雷达流量。

6. 发明申请

WO2007082285A3 DEVICE AND METHOD OF PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：基于OFDM无线通信系统的信道估计的设备及方法
公开(公告)号：WO2007082285A3
公开(公告)日：2008-01-31
申请号：PCT/US2007060419
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD , SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
发明人： SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
IPC分类号： H04B1/00
CPC分类号： H04L25/0232 , H04L5/023 , H04L27/2647
摘要： A device and method of performing channel estimation for an OFDM- based wireless communication system performs a Least Square interpolation with a statistical channel profile consideration on pilot channel estimates to derive data channel estimates at data subcarrier locations.
摘要翻译：执行基于OFDM的无线通信系统的信道估计的装置和方法在导频信道估计上执行具有统计信道简档考虑的最小二乘插值，以导出数据子载波位置处的数据信道估计。

7. 发明申请

WO2007082286A2 DEVICE AND METHOD FOR PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED SIGNALS WITH VARIABLE PILOT SUBCARRIER SPACING 审中-公开
标题翻译：用于基于OFDM的信号进行信道估计的设备和方法，其具有可变引导子载波间隔
公开(公告)号：WO2007082286A2
公开(公告)日：2007-07-19
申请号：PCT/US2007/060421
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , SONG, Kee-bong , ZENG, Chaohuang , CHOI, Won-Joon
发明人： SONG, Kee-bong , ZENG, Chaohuang , CHOI, Won-Joon
IPC分类号： H04J11/00
CPC分类号： H04W24/00 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/0232 , H04W48/08
摘要： A device and method for performing channel estimation for an OFDM- based wireless communication system modifies pilot subcarrier spacing to use a set of interpolation coefficients associated with a different pilot subcarrier spacing.
摘要翻译：用于对基于OFDM的无线通信系统执行信道估计的装置和方法修改导频子载波间隔以使用与不同导频子载波间隔相关联的一组内插系数。

8. 发明申请

WO2007082283A2 DECODER AND METHOD FOR DECODING A TAIL-BITING CONVOLUTIONAL ENCODED SIGNAL USING VITERBI DECODING SCHEME 审中-公开
标题翻译：使用VITERBI解码方案解码尾随位移编码信号的解码器和方法
公开(公告)号：WO2007082283A2
公开(公告)日：2007-07-19
申请号：PCT/US2007060417
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD , GHO GWANG-HYUN , CHOI WON-JOON , ZENG CHAOHUANG
发明人： GHO GWANG-HYUN , CHOI WON-JOON , ZENG CHAOHUANG
IPC分类号： H03M13/03
CPC分类号： H03M13/2996
摘要： A decoder and method for decoding a tail-biting convolutional encoded signal using Viterbi decoding scheme performs a traceback operation for a first portion of a total code block, which includes a code block of the tail-biting convolutional encoded signal and a padded block. During the traceback operation for the first portion, a particular state at a predefined position within the first portion is stored as a circular state. The circular state is used as a traceback starting state for at least one subsequent portion of the total code block to produce a decoded signal of the code block.
摘要翻译：使用维特比解码方案对尾部卷积编码信号进行解码的解码器和方法对总代码块的第一部分执行回溯操作，其包括尾巴卷积编码信号的码块和填充块。在第一部分的回溯操作期间，第一部分内的预定位置处的特定状态被存储为圆形状态。循环状态用作总代码块的至少一个后续部分的回溯开始状态，以产生代码块的解码信号。

9. 发明申请

WO2007082280A2 OFDMA DEVICE AND METHOD OF CORRECTING FREQUENCY OFFSET IN OFDMA SIGNALS 审中-公开
标题翻译： OFDMA设备和在OFDMA信号中校正频率偏移的方法
公开(公告)号：WO2007082280A2
公开(公告)日：2007-07-19
申请号：PCT/US2007/060414
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , ZENG, Chaohuang , CHOI, Won-Joon , YANG, Jingnong
发明人： ZENG, Chaohuang , CHOI, Won-Joon , YANG, Jingnong
IPC分类号： H04K1/10
CPC分类号： H04L27/266 , H04L5/023 , H04L27/2659 , H04L27/2662 , H04L27/2675
摘要： An Orthogonal Frequency Division Multiple Access (OFDMA) device and method of correcting frequency offset in OFDMA signals computes an estimated frequency offset, which is used for mixing an incoming OFDMA signal with a frequency offset-compensated mixer signal and for digitally correcting sampling errors in the signal.
摘要翻译：正交频分多址（OFDMA）设备和OFDMA信号中的频偏校正方法计算估计的频偏，其用于混合输入OFDMA信号与频偏补偿混频器信号，并用于数字校正采样误差信号。

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