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1. 发明申请

WO2006076583A3 RATE ADAPTATION USING SEMI-OPEN LOOP TECHNIQUE 审中-公开
标题翻译：使用半开环技术的速率调整
公开(公告)号：WO2006076583A3
公开(公告)日：2007-12-21
申请号：PCT/US2006001244
申请日：2006-01-12
申请人： ATHEROS COMM INC , CHOI WON-JOON , ZHANG NING , YE HUANCHUN , GILBERT JEFFREY M
发明人： CHOI WON-JOON , ZHANG NING , YE HUANCHUN , GILBERT JEFFREY M
IPC分类号： H04L12/26
CPC分类号： H04W52/24 , G01R29/26 , H04B7/0413 , H04L1/0002 , H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/1607 , H04L1/20 , H04L25/0204 , H04L47/10 , H04L47/263
摘要： In a semi-open loop rate adaptation scheme for a multiple-input multiple-output (MIMO) system, a transmitter can advantageously use one or more quality metrics of an uplink as well as knowledge of device characteristics of both ends to perform fast and accurate rate adaptation.
摘要翻译：在用于多输入多输出（MIMO）系统的半开环速率适配方案中，发射机可以有利地使用上行链路的一个或多个质量度量以及两端的设备特性的知识来执行快速和准确的速率适应

2. 发明申请

WO2006076697A2 SELECTING MCS IN A MIMO SYSTEM 审中-公开
标题翻译：在MIMO系统中选择MCS
公开(公告)号：WO2006076697A2
公开(公告)日：2006-07-20
申请号：PCT/US2006001452
申请日：2006-01-12
申请人： ATHEROS COMM INC , YE HUANCHUN , CHOI WON-JOON , ZHANG NING , GILBERT JEFFREY M
发明人： YE HUANCHUN , CHOI WON-JOON , ZHANG NING , GILBERT JEFFREY M
CPC分类号： H04L27/2608 , H04B7/02 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0016 , H04L1/0025 , H04L1/20
摘要： An accurate total error rate performance can be measured using a computed error vector magnitude (EVM) per stream. Using this EVM, the receiver or the transmitter can advantageously generate an optimized modulation and coding scheme (MCS) that corresponds to a specific number of streams, modulation and coding rate for the transmitter. For example, the receiver can compute an SNR from the EVM and then use an SNR vs. MCS table to determine the optimized MCS. In contrast, the transmitter can receive an EVM-to-RSSI mapping and an EVM- to-MCS mapping from the receiver. These mappings and an EVM can facilitate selecting the optimized MCS.
摘要翻译：可以使用每个流的计算误差向量幅度（EVM）来测量精确的总错误率性能。使用该EVM，接收机或发射机可以有利地生成对应于发射机的特定数量的流，调制和编码速率的优化的调制和编码方案（MCS）。例如，接收机可以从EVM计算SNR，然后使用SNR对MCS表来确定优化的MCS。相比之下，发射机可以从接收机接收EVM到RSSI映射和EVM到MCS映射。这些映射和EVM可以促进选择优化的MCS。

3. 发明申请

WO2005036775A2 APPARATUS AND METHOD OF MULTIPLE ANTENNA TRANSMITTER BEAMFORMING OF HIGH DATA RATE WIDEBAND PACKETIZED WIRELESS COMMUNICATION SIGNALS 审中-公开
标题翻译：高数据速率宽带无线通信信号的多天线发射机波束的装置和方法
公开(公告)号：WO2005036775A2
公开(公告)日：2005-04-21
申请号：PCT/US2004033081
申请日：2004-10-06
申请人： ATHEROS COMM INC , CHOI WON-JOON , TEHRANI ARDAVAN M , GILBERT JEFFREY M , NG SAMUEL
发明人： CHOI WON-JOON , TEHRANI ARDAVAN M , GILBERT JEFFREY M , NG SAMUEL
IPC分类号： H04B7/06 , H04L25/02 , H04L27/26
CPC分类号： H04L27/2626 , H04B7/0617 , H04L25/0206 , H04L27/2608 , H04L27/2614
摘要： The present invention provides an apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals, where each of the signals comprises N frequencies, where N is a positive integer. The apparatus, in an exemplary embodiment, includes (1) a transmit beamformer that co-phases and weights the signals for each of the N frequencies across M antennas, thereby generating M co-phased and weighted frequency data and (2) M Inverse Fast Fourier Transform units (IFFTs) that convert the M co-phased and weighted frequency data into M digital outputs, and M transmit antennas transmitting the M co-phased and weighted signals, where M is an integer greater than or equal to 2.
摘要翻译：本发明提供了一种高数据速率宽带分组化无线通信信号的多天线发射机波束成形的装置和方法，其中每个信号包括N个频率，其中N是正整数。在示例性实施例中，该装置包括：（1）发射波束形成器，其对M个天线中的每个N个频率的信号进行共相并加权，由此产生M个同相和加权的频率数据;（2）M 将M个相位和加权频率数据转换为M个数字输出的傅里叶变换单元（IFFT），以及发射M个同相加权信号的M个发射天线，其中M是大于或等于2的整数。

4. 发明申请

WO2005046113A3 MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM AND METHOD 审中-公开
标题翻译：多输入多输出系统及方法
公开(公告)号：WO2005046113A3
公开(公告)日：2007-02-22
申请号：PCT/US2004036886
申请日：2004-11-04
申请人： ATHEROS COMM INC , SUN QINFANG , CHOI WON-JOON , GILBERT JEFFREY M , TEHRANI ARDAVAN MALEKI
发明人： SUN QINFANG , CHOI WON-JOON , GILBERT JEFFREY M , TEHRANI ARDAVAN MALEKI
IPC分类号： H04B7/02 , H04L20060101 , H04L1/02 , H04L27/28 , H04Q7/00
CPC分类号： H04B7/0421 , H04B7/0413 , H04B7/0613 , H04B7/0684 , H04L1/0041 , H04L1/0054 , H04L1/0061 , H04L1/06 , H04L1/0656 , H04L1/1819 , H04L1/1829 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/0014 , H04L2025/03426
摘要： A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may "stomp" on a MIMO packet by transmitting before the transmission of the MIMO packet is complete. Therefore, MIMO systems and methods are provided herein to allow legacy devices to decode the length of a MIMO packet and to restrain from transmitting during that period. These MIMO systems and methods are optimized for efficient transmission of MIMO packets.
摘要翻译：多输入多输出（MIMO）系统可以同时在多个天线上进行发射并同时在多个天线上进行接收。不幸的是，由于遗留802.11a / g设备不能解码多个数据流，所以这样的传统设备可能在MIMO分组的传输完成之前通过发送在MIMO分组上“踩踏”。因此，本文提供MIMO系统和方法，以允许传统设备对MIMO分组的长度进行解码并且在该时间段内抑制发射。这些MIMO系统和方法被优化用于MIMO分组的有效传输。

5. 发明申请

WO2005029749A3 SPUR MITIGATION TECHNIQUES 审中-公开
标题翻译： SPUR减缓技术
公开(公告)号：WO2005029749A3
公开(公告)日：2007-01-18
申请号：PCT/US2004030315
申请日：2004-09-15
申请人： ATHEROS COMM INC , CHOI WON-JOON , GILBERT JEFFREY M , WANG YI-HSIU , ZHANG XIAORU
发明人： CHOI WON-JOON , GILBERT JEFFREY M , WANG YI-HSIU , ZHANG XIAORU
IPC分类号： H04K1/10 , H04L27/26
CPC分类号： H04L25/0232 , H04L1/0045 , H04L27/2647
摘要： Spurs cause significant problems with signal detecting, amplifier gain adjustment, and signal decoding. Various techniques can be used to mitigate the effects of spurs on a received signal. Generally, these techniques work by either canceling or ignoring the spurs. For example, a pilot mask can be used to ignore pilot information in one or more sub-channels. A Viterbi mask can determine the weighting given to bits in a sub-channel based on spur and data rate information. Channel interpolation can compute a pseudo channel estimate for a sub-channel known to have a spur location can be computed by interpolating the channel estimates of adjacent good sub-channels. Filtering of the received signal using a low-pass filter, a growing box filter, or a low-pass filter with self-correlation can be used to cancel a spur.
摘要翻译：马刺引起信号检测，放大器增益调整和信号解码的重大问题。可以使用各种技术来减轻杂散对接收信号的影响。一般来说，这些技术可以取消或忽略杂散。例如，可以使用导频掩码来忽略一个或多个子信道中的导频信息。维特比掩码可以基于分支和数据速率信息来确定子信道中的比特的加权。可以通过内插相邻的良好子信道的信道估计来计算已知具有支路位置的子信道的信道内插可以计算伪信道估计。使用低通滤波器，增长盒滤波器或具有自相关的低通滤波器对接收信号进行滤波可用于取消杂散。

6. 发明申请

WO2005036775A3 APPARATUS AND METHOD OF MULTIPLE ANTENNA TRANSMITTER BEAMFORMING OF HIGH DATA RATE WIDEBAND PACKETIZED WIRELESS COMMUNICATION SIGNALS 审中-公开
标题翻译：高数据速率宽带无线通信信号的多天线发射机波束的装置和方法
公开(公告)号：WO2005036775A3
公开(公告)日：2005-08-11
申请号：PCT/US2004033081
申请日：2004-10-06
申请人： ATHEROS COMM INC , CHOI WON-JOON , TEHRANI ARDAVAN M , GILBERT JEFFREY M , NG SAMUEL
发明人： CHOI WON-JOON , TEHRANI ARDAVAN M , GILBERT JEFFREY M , NG SAMUEL
IPC分类号： H04B7/06 , H04L25/02 , H04L27/26
CPC分类号： H04L27/2626 , H04B7/0617 , H04L25/0206 , H04L27/2608 , H04L27/2614
摘要： The present invention provides an apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals, where each of the signals comprises N frequencies, where N is a positive integer. The apparatus, in an exemplary embodiment, includes (1) a transmit beamformer (220) that co-phases and weights the signals for each of the N frequencies across M antennas, thereby generating M co-phased and weighted frequency data and M Inverse Fast Fourier Transform units (IFFTs 230, 232) that convert the M co-phased and weighted frequency data into M digital outputs, and M transmit antennas (260, 262) transmitting the M co-phased and weighted signals, where M is an integer greater than or equal to 2.
摘要翻译：本发明提供了一种高数据速率宽带分组化无线通信信号的多天线发射机波束成形的装置和方法，其中每个信号包括N个频率，其中N是正整数。在示例性实施例中，该装置包括：（1）发射波束形成器（220），其跨M个天线对N个频率中的每一个进行信号的相位和加权，从而产生M个同相和加权频率数据，并且M反向快速将M个相位和加权的频率数据转换成M个数字输出的傅立叶变换单元（IFFT 230，232）以及M个发送天线（260,262），M个发送天线的M个相位和加权的信号，其中M是更大的整数超过或等于2。

7. 发明申请

WO2008148078A2 OFDM-BASED DEVICE AND METHOD FOR PERFORMING SYNCHRONIZATION IN THE PRESENCE OF INTERFERENCE SIGNALS 审中-公开
标题翻译：基于OFDM的设备和在干扰信号存在中执行同步的方法
公开(公告)号：WO2008148078A2
公开(公告)日：2008-12-04
申请号：PCT/US2008064839
申请日：2008-05-27
申请人： AMICUS WIRELESS TECHNOLOGY LTD , YANG JINGNONG , CHOI WON-JOON
发明人： YANG JINGNONG , CHOI WON-JOON
IPC分类号： H04L27/28 , H04J3/06
CPC分类号： H04L27/2675 , H04L27/2659 , H04L27/266
摘要： An OFDM-based device and method for performing synchronization utilizes a time-domain preamble of an incoming OFDM-based signal to compute an estimated fine frequency offset. The computation of the estimated fine frequency offset involves multiplying values of the time-domain preamble with conjugates of corresponding values of a selected base station time-domain preamble, averaging the resulting multiplied values in predefined segments and self-correlating the resulting averaged values to derive a self-correlation value, which is used to compute the estimated fine frequency offset.
摘要翻译：用于执行同步的基于OFDM的设备和方法利用输入的基于OFDM的信号的时域前同步码来计算估计的精细频率偏移。估计的精细频率偏移的计算包括将时域前导码的值与所选择的基站时域前导码的对应值的共轭相乘，在预定义的段中对所得到的相乘值进行平均，并且自相关所得到的平均值以导出一个自相关值，用于计算估计的精细频率偏移。

8. 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。

9. 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。

10. 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。

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