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公开(公告)号：US07369626B1
公开(公告)日：2008-05-06
申请号：US10782351
申请日：2004-02-18
CPC分类号： H04L25/03159 , H04L25/03343 , H04L2025/03414 , H04L2025/03522
摘要： A modem system for receiving and transmitting signals having a frequency domain equalizer (FEQ) block being responsive to a frequency channel response for processing the same to generate one or more initial FEQ coefficients (FEQ1), the modem system is responsive to an input signal for processing the same to generate frequency channel response, the input signal being generated from a transmitted signal, FEQ block using FEQ1 to generate an equalized Signal, modem system demodulating equalized Signal to generate a demodulated Signal symbol, in accordance with an embodiment of the present invention.
摘要翻译： 一种调制解调器系统，用于接收和发送具有频域均衡器（FEQ）块的信号，所述频域均衡器（FEQ）块响应于频率响应来处理该频率响应以产生一个或多个初始FEQ系数（FEQ 1），所述调制解调器系统响应于输入信号 为了处理它以产生频道信号响应，根据传输信号产生的输入信号，使用FEQ1的FEQ块，以产生均衡的信号，调制解调器系统解调均衡信号以产生解调的信号符号，根据 本发明。
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公开(公告)号：US07324608B1
公开(公告)日：2008-01-29
申请号：US10782276
申请日：2004-02-18
CPC分类号： H04L25/03159 , H04L2025/03414 , H04L2025/03522
摘要： A modem system for receiving and transmitting signals having a frequency domain equalizer (FEQ) block being responsive to a frequency channel response for processing the same to generate one or more equalizer coefficients, the modem system is responsive to an input signal for processing the same to generate frequency channel response, the input signal being generated from transmission of a transmitted signal, FEQ block for using equalizer coefficients to generate an equalized channel response, modem system for using equalized channel response to generate one or more metric weights, in accordance with an embodiment of the present invention.
摘要翻译： 一种用于接收和发送具有频域均衡器（FEQ）块的信号的调制解调器系统，其响应于频道响应来处理该信号响应以产生一个或多个均衡器系数，所述调制解调器系统响应于输入信号进行处理， 产生频道响应，所述输入信号是从发射信号的传输产生的FEQ块，用于使用均衡器系数来产生均衡信道响应，调制解调器系统，用于使用均衡信道响应来生成一个或多个度量权重，根据实施例 的本发明。
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公开(公告)号：US10206122B2
公开(公告)日：2019-02-12
申请号：US15121044
申请日：2015-02-24
申请人： MEDIATEK INC. , James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
发明人： James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
IPC分类号： H04W16/22 , G01S3/74 , G01S3/14 , G01S5/12 , G01S1/08 , H04L5/00 , H04L29/06 , H04B7/06 , H04B17/318 , G01S5/06 , H04W4/02 , G01S5/02 , H04W24/10 , H04W64/00 , H04W4/04 , H04W84/12
摘要： A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.
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4.发明授权Maximum ratio combining architectures for optimal complementary code keying receiver design 有权最大比例组合结构，用于最佳互补码键控接收机设计公开(公告)号：US08126095B1
公开(公告)日：2012-02-28
申请号：US11584025
申请日：2006-10-20
CPC分类号： H04B7/0857 , H04B7/0413 , H04L5/0023 , H04L23/02 , H04L25/03057 , H04L25/03159 , H04L27/2655 , H04L2025/03414 , H04L2025/03426 , H04L2025/03617
摘要： A multi input multi output (MIMO) receiver for receiving signals having a plurality of equalizers being responsive to aligned signals for processing the same to generate a plurality of equalized outputs using filter coefficients, in accordance with an embodiment of the present invention. The MIMO receiver for training said plurality of equalizers to adapt said filter coefficients for generating said plurality of equalized outputs, said MIMO receiver for combining said plurality of equalized outputs in time domain to generate a weighted output, said MIMO receiver for improving the quality of said weighted output by performing equalization prior to combining said plurality of equalized outputs.
摘要翻译： 根据本发明的实施例，一种用于接收具有多个均衡器的信号的多输入多输出（MIMO）接收机，响应于对准信号进行处理，以产生使用滤波器系数的多个均衡输出。 所述MIMO接收机用于训练所述多个均衡器以适应所述滤波器系数以产生所述多个均衡输出，所述MIMO接收机用于在时域中组合所述多个均衡输出以产生加权输出，所述MIMO接收机用于提高所述多个均衡输出的质量 在组合所述多个均衡输出之前执行均衡的加权输出。
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公开(公告)号：US10341850B2
公开(公告)日：2019-07-02
申请号：US15117448
申请日：2015-02-10
申请人： MEDIATEK INC. , Jianhan Liu , Tianyu Wu , Thomas Edward Pare, Jr.
发明人： Jianhan Liu , Tianyu Wu , Thomas Edward Pare, Jr.
IPC分类号： H04W8/26 , H04W48/16 , H04W16/10 , H04L12/823 , H04W84/12
摘要： A method for identifying source BSS in WLAN is proposed. A high efficiency (HE) access point (AP) sends a packet containing a basic service set (BSS) color to a HE station. The HE AP also sends a packet containing an assigned association identification (AID) to a very high throughput (VHT) station. The assigned AID comprises at least part of the BSS color information. The VHT station therefore sends a packet containing the at least part of the BSS color information such that any AP or station that receives the packet can determine the BSS the VHT station is in.
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公开(公告)号：US10110361B2
公开(公告)日：2018-10-23
申请号：US15123247
申请日：2015-03-04
申请人： MEDIATEK INC. , Tianyu Wu , Jianhan Liu , Kiran Uln , Thomas Edward Pare, Jr.
发明人： Tianyu Wu , Jianhan Liu , Kiran Uln , Thomas Edward Pare, Jr.
IPC分类号： H04L5/00 , H04L25/02 , H04B17/24 , H04B17/336 , H04B7/0452 , H04B7/06 , H04L1/16 , H04B7/0417 , H04W72/04 , H04W72/08
摘要： A method of sub-channel feedback in OFDMA systems is provided. A wireless receiving device (STA) receives a radio signal from a transmitting device (AP) over a wide channel in an OFDMA system. The radio signal is transmitted over multiple sub-channels of the wide channel. The STA estimates channel quality information based on the received radio signal for each sub-channel. The STA then sends feedback information to the transmitting device. The feedback information comprises the estimated channel quality information for a selected subset of sub-channels from the wide channel based on a predefined rule. In one embodiment, the feedback information is embedded within an ACK/BA frame or is carried in a frame immediately subsequent to the ACK/BA frame.
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7.发明授权Method and apparatus for calibration for beamforming of multi-input-multi-output (MIMO) orthogonol frequency division multiplexing (OFDM) transceivers 有权用于多输入多输出（MIMO）正交频分复用（OFDM）收发器的波束成形的校准方法和装置公开(公告)号：US07986755B2
公开(公告)日：2011-07-26
申请号：US11840897
申请日：2007-08-17
IPC分类号： H03D1/04
CPC分类号： H04B7/0417 , H04L27/2626 , H04L27/2647 , H04L27/364 , H04L27/3863
摘要： An embodiment of the present invention includes a calibration system employed in a multi-input-multi-output (MIMO) system for beamforming and receiving a plurality of streams. The system includes a first calibration circuit responsive to inphase (I) and quadrature (Q) pairs of stream and operative to calibrate each I and Q pair and a second calibration circuit responsive to the calibrated I and Q pairs for all streams, wherein the first and second calibration circuits perform calibration in the time domain.
摘要翻译： 本发明的实施例包括用于波束成形和接收多个流的多输入多输出（MIMO）系统中的校准系统。 该系统包括响应于同相（I）和正交（Q）对流并且可操作地校准每个I和Q对的第一校准电路，以及响应于所有流的经校准的I和Q对的第二校准电路，其中第一 并且第二校准电路在时域中执行校准。
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8.发明授权Joint time/frequency domain maximum ratio combining architectures for multi input multi output wireless receivers 有权多输入多输出无线接收器的联合时间/频域最大比组合架构公开(公告)号：US07486751B1
公开(公告)日：2009-02-03
申请号：US11048075
申请日：2005-01-31
IPC分类号： H04B7/10
CPC分类号： H04L25/03159 , H04B7/0413 , H04B7/0857 , H04L25/0204 , H04L25/03343 , H04L27/2655 , H04L27/2662 , H04L2025/03414 , H04L2025/03522
摘要： A multi input multi output (MIMO) receiver for receiving signals having a synchronization (SYNC) module being responsive to a plurality of received baseband signals for processing the same to generate maximum ratio combining (MRC) parameters, complementary code keying (CCK) modulated signals and orthogonal frequency division multiplexing (OFDM) modulated signals, said SYNC module for using said MRC parameters to process said OFDM modulated signals to generate a plurality of aligned OFDM signals in time domain, said MIMO receiver for processing said plurality of aligned OFDM signals to generate a plurality of subcarriers, in accordance with an embodiment of the present invention. The MIMO receiver further including a time domain CCK MRC module being responsive to said MRC parameters for processing said CCK modulated signals in time domain to generate aligned signals, said aligned signals being combined to generate an adjusted signal for demodulation. The MIMO receiver further including a frequency domain OFDM MRC module being responsive to said plurality of said subcarriers for combining the same in the frequency domain to generate an equalized response for demodulation, wherein said MIMO receiver for processing said CCK modulated signals in the time domain and said OFDM modulated signals in the frequency domain to improve the reception of said plurality of received baseband signals.
摘要翻译： 一种多输入多输出（MIMO）接收机，用于接收具有同步（SYNC）模块的信号，该同步（SYNC）模块响应于多个接收的基带信号进行处理，以产生最大比率组合（MRC）参数，互补码键控（CCK）调制信号 和正交频分复用（OFDM）调制信号，所述SYNC模块用于使用所述MRC参数来处理所述OFDM调制信号以在时域中产生多个对准的OFDM信号，所述MIMO接收机用于处理所述多个对准的OFDM信号以产生 多个子载波，根据本发明的实施例。 所述MIMO接收机还包括响应于所述MRC参数的时域CCK MRC模块，用于在时域中处理所述CCK调制信号以生成对准的信号，所述对准的信号被组合以产生用于解调的经调整的信号。 MIMO接收机还包括响应于所述多个所述子载波的频域OFDM MRC模块，用于在频域中组合它们以产生用于解调的均衡响应，其中所述MIMO接收机用于在时域中处理所述CCK调制信号，以及 所述OFDM调制信号在频域中以改善所述多个接收的基带信号的接收。
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9.发明授权Efficient method for multi-path resistant carrier and timing frequency offset detection 有权多路抗电荷载波和定时频偏检测的有效方法公开(公告)号：US07245677B1
公开(公告)日：2007-07-17
申请号：US10797299
申请日：2004-03-09
IPC分类号： H04L27/06
CPC分类号： H04L27/2657 , H04L25/022 , H04L25/03159 , H04L27/2662 , H04L27/2675
摘要： A modem receiver for receiving signals having a frequency domain equalizer training module (FTM) being responsive to a frequency channel response for processing the same to generate one or more frequency domain equalizer (FEQ) coefficients, said modem receiver being responsive to an input signal for processing the same to generate said frequency channel response, said input signal being generated from transmission of a transmitted signal, said frequency channel response for including one or more pilot tones, said FEQ coefficients for including one or more pilot tone FEQ coefficients, in accordance with an embodiment of the present invention. The modem receiver further includes an offset weight determination (OWD) module being responsive to said pilot tone FEQ coefficients for processing the same to generate one or more carrier weights, said modem receiver for using said carrier weights to generate a carrier offset, said OWD module for using said pilot tone FEQ coefficients to generate one or more timing weights, said modem receiver for using said timing weights to generate a timing offset, said modem receiver for reducing the effects of faded pilot tones on determination of said timing offset and said carrier offset between said transmitted signal and said input signal.
摘要翻译： 一种调制解调器接收机，用于接收具有频域均衡器训练模块（FTM）的信号，所述频域均衡器训练模块（FTM）响应于频道响应来处理该频域响应以产生一个或多个频域均衡器（FEQ）系数，所述调制解调器接收机响应于输入信号 对其进行处理以产生所述频道响应，所述输入信号是从发射信号的传输产生的，所述频道响应用于包括一个或多个导频音，所述FEQ系数用于包括一个或多个导频音FEQ系数，根据 本发明的一个实施例。 所述调制解调器接收机还包括偏移权重确定（OWD）模块，响应于所述导频音FEQ系数用于处理它们以产生一个或多个载波权重，所述调制解调器接收机用于使用所述载波权重来产生载波偏移量，所述OWD模块 用于使用所述导频音FEQ系数来产生一个或多个定时权重，所述调制解调器接收机用于使用所述定时权重来产生定时偏移量，所述调制解调器接收机用于在确定所述定时偏移和所述载波偏移时减少褪色导频音的影响 在所述发送信号和所述输入信号之间。
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10.发明授权Method and apparatus for beamforming of multi-input-multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) transceivers 有权用于多输入多输出（MIMO）正交频分复用（OFDM）收发器的波束成形的方法和装置公开(公告)号：US08559571B2
公开(公告)日：2013-10-15
申请号：US11840891
申请日：2007-08-17
IPC分类号： H03D1/04
CPC分类号： H04B17/0085 , H04B7/0413 , H04B7/0617 , H04B17/21
摘要： An embodiment of the present invention includes a calibration system employed in a multi-input-multi-output (MIMO) system for beamforming and receiving a plurality of streams. The system includes a first calibration circuit responsive to inphase (I) and quadrature (Q) pairs of stream and operative to calibrate each I and Q pair and a second calibration circuit responsive to the calibrated I and Q pairs for all streams, wherein the first and second calibration circuits perform calibration in the time domain.
摘要翻译： 本发明的实施例包括用于波束成形和接收多个流的多输入多输出（MIMO）系统中的校准系统。 该系统包括响应于同相（I）和正交（Q）对流并且可操作地校准每个I和Q对的第一校准电路，以及响应于所有流的经校准的I和Q对的第二校准电路，其中第一 并且第二校准电路在时域中执行校准。
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