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1. 发明授权

US07702304B2 Adaptive beam forming receiver 有权
标题翻译：自适应波束形成接收机
公开(公告)号：US07702304B2
公开(公告)日：2010-04-20
申请号：US11237439
申请日：2005-09-28
申请人： James June-Ming Wang , Meng-Chang Doong
发明人： James June-Ming Wang , Meng-Chang Doong
IPC分类号： H04B17/02
CPC分类号： H04B7/086 , H04B7/0857 , H04B7/10 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/442 , Y02D70/444
摘要： The present invention provides a method and system for operating a wireless communication system in which received signals from a plurality of antennas are weighted and combined with a beam forming operation to form an output signal. In an embodiment of the present invention, beamforming operations are performed with maximal ratio combining (MRC) and an interference nulling algorithm (INA). The INA receives an error signal which is 180° out of phase with a combination of the channels for individual antennas, referred to as the SUM channel. The error signal is determined by complex conjugate multiplication of the individual signals and a reference complex signal. The weight amplitude is controlled by weight normalization to provide faster convergence and prevent integrator overflow.
摘要翻译：本发明提供了一种用于操作无线通信系统的方法和系统，其中来自多个天线的接收信号被加权并与波束形成操作组合以形成输出信号。在本发明的实施例中，以最大比组合（MRC）和干扰归零算法（INA）来执行波束形成操作。 INA接收与被称为SUM信道的各个天线的信道的组合相差180°的误差信号。误差信号由各个信号和参考复信号的复共轭乘法确定。重量幅度由权重归一化控制，以提供更快的收敛并防止积分器溢出。

2. 发明授权

US07260370B2 Wireless communication system using a plurality of antenna elements with adaptive weighting and combining techniques 失效
标题翻译：使用具有自适应加权和组合技术的多个天线元件的无线通信系统
公开(公告)号：US07260370B2
公开(公告)日：2007-08-21
申请号：US10732003
申请日：2003-12-10
申请人： James June-Ming Wang , Jack Winters , Meng Chang Doong , Chau Chin Yang
发明人： James June-Ming Wang , Jack Winters , Meng Chang Doong , Chau Chin Yang
IPC分类号： H04B17/02
CPC分类号： H04B7/086 , H04B7/0857 , H04B7/10 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/442 , Y02D70/444
摘要： The present invention provides a method and system for operating a wireless communication system in which received signals from a plurality of antennas are weighted and combined with a beam forming operation to form an output signal. The beam forming operation determines weights adjusted to increase a desired signal power in the output signal while reducing the power in the output signal of out-of-band components. In an embodiment of the present invention, beam forming operations are performed with maximal ratio combining (MRC). Alternatively, a constant modulus algorithm (CMA) can be used for beam forming operations. In an alternate embodiment, improved interference suppression is performed with a novel algorithm referred to as an interference nulling algorithm (INA). The INA receives an error signal which is 180° out of phase with a combination of the channels for individual antennas, referred to as the SUM channel. The error signal is determined by complex conjugate multiplication of the individual signals and a reference complex signal. It is desirable to simultaneously achieve diversity and combining gain and suppress the adjacent channel by combining the weight generation for MRC and that for INA, as described above, to generate antenna weights similar to those of MMSE combining.
摘要翻译：本发明提供了一种用于操作无线通信系统的方法和系统，其中来自多个天线的接收信号被加权并与波束形成操作组合以形成输出信号。波束形成操作确定了为减小输出信号中的带外分量的功率而在输出信号中增加所需信号功率而调整的权重。在本发明的实施例中，以最大比组合（MRC）进行波束形成操作。或者，恒模算法（CMA）可用于波束形成操作。在替代实施例中，使用被称为干扰归零算法（INA）的新颖算法来执行改进的干扰抑制。 INA接收与被称为SUM信道的各个天线的信道的组合相差180°的误差信号。误差信号由各个信号和参考复信号的复共轭乘法确定。期望同时实现分集和组合增益并通过组合用于MRC的权重生成和针对INA的权重生成来抑制相邻信道，如上所述，以生成与MMSE组合类似的天线权重。

3. 发明申请

US20170070893A1 DIRECTION FINDING POSITIONING IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：在无线局域网中寻找定位的方向
公开(公告)号：US20170070893A1
公开(公告)日：2017-03-09
申请号：US15121044
申请日：2015-02-24
申请人： James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, JR. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu , MEDIATEK INC.
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 , H04L29/06 , H04B7/06 , H04L5/00
CPC分类号： H04W16/225 , G01S3/14 , G01S3/74 , G01S5/0252 , G01S5/06 , G01S5/12 , G01S13/825 , H04B7/0617 , H04B17/318 , H04L5/0048 , H04L5/005 , H04L69/22 , H04W4/02 , H04W4/023 , H04W4/043 , H04W24/10 , H04W64/00 , 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.
摘要翻译：提出了一种在无线定位区域网络（WLAN）中的方向搜索（DF）定位的方法。多天线IEEE 802.11发射设备可以同时在多个天线的无线帧中发送包含多个长训练场（LTF）符号的信号前导码，这允许接收设备解析从多个天线发送的多个DF探测信号。结果，可以通过使用来自每个天线的多个分辨的DF探测信号来估计发射装置的出发角（AoD），用于DF定位目的。

4. 发明授权

US08902921B2 Methods for inter-user interference indication feedback and usage in MU-MIMO wireless systems 有权
标题翻译： MU-MIMO无线系统中用户间干扰指示反馈和使用的方法
公开(公告)号：US08902921B2
公开(公告)日：2014-12-02
申请号：US13587902
申请日：2012-08-16
申请人： Jianhan Liu , James June-Ming Wang , YungPing Hsu
发明人： Jianhan Liu , James June-Ming Wang , YungPing Hsu
IPC分类号： H04B7/212 , H04B7/04 , H04L25/02
CPC分类号： H04B7/0452 , H04L25/0204 , H04L25/0224
摘要： The present invention proposes methods for facilitating and improving the performance of MU-MIMO transmission in wireless communication systems. Each user within a MU group inserts an inter-user interference indication field in its acknowledgement packet. The inter-user interference indication field includes signal-to-interference-noise-ratio (SINR) and interference source information. The MU-MIMO transmitter extracts inter-user interference indication feedback and improves subsequent MU-MIMO transmission. Feedback of the inter-user interference information such as SINR and interference source allows efficient link adaptation, smarter user selection, channel re-sounding selection, and fine-tuning of precoding matrix.
摘要翻译：本发明提出了促进和改进无线通信系统中MU-MIMO传输性能的方法。 MU组内的每个用户在其确认分组中插入用户间干扰指示字段。用户间干扰指示字段包括信号与干扰噪声比（SINR）和干扰源信息。 MU-MIMO发射机提取用户间干扰指示反馈并改进随后的MU-MIMO传输。诸如SINR和干扰源之类的用户间干扰信息的反馈允许有效的链路自适应，更智能的用户选择，信道重新选择以及预编码矩阵的微调。

5. 发明申请

US20130294491A1 Antenna diversity control for beamforming in an antenna array 有权
标题翻译：天线阵列中波束成形的天线分集控制
公开(公告)号：US20130294491A1
公开(公告)日：2013-11-07
申请号：US13867645
申请日：2013-04-22
申请人： James June-Ming Wang , Menno Marringa
发明人： James June-Ming Wang , Menno Marringa
IPC分类号： H04B7/08
CPC分类号： H04B7/0897 , H04B1/7075 , H04B7/0617 , H04B7/086 , Y02D70/1242 , Y02D70/1262 , Y02D70/40 , Y02D70/444
摘要： Techniques for controlling diversity beamforming antenna array is disclosed. One aspect of the techniques is to utilize low-power and low area circuits to achieve combining gains, mitigate the effects of multipath fading, provide spatial suppression and diversity gains to a single input receiver. The device is radiofrequency transparent yet provides antenna gain by selective three G and four G code acquisition and tracking of a desired downlink channel.
摘要翻译：公开了用于控制分集波束成形天线阵列的技术。该技术的一个方面是利用低功率和低面积电路来实现组合增益，减轻多径衰落的影响，向单个输入接收机提供空间抑制和分集增益。该设备是射频透明的，并通过选择性的三G和四G码获取和跟踪期望的下行链路信道来提供天线增益。

6. 发明申请

US20130010632A1 Simultaneous Feedback Signaling for Dynamic Bandwidth Selection 有权
标题翻译：用于动态带宽选择的同步反馈信号
公开(公告)号：US20130010632A1
公开(公告)日：2013-01-10
申请号：US13635341
申请日：2011-10-20
申请人： James June-Ming Wang , Vishakan Ponnampalam , Jianhan Liu , Chao-Chun Wang , Huanchun Ye
发明人： James June-Ming Wang , Vishakan Ponnampalam , Jianhan Liu , Chao-Chun Wang , Huanchun Ye
IPC分类号： H04W24/10
CPC分类号： H04B17/309 , H04B17/24
摘要： A method of simultaneously providing channel quality feedback information in all valid sub-channels is provided to facilitate and improve the performance of dynamic transmission bandwidth adjustment and fast link adaptation. A receiving device receives a sounding signal over a wide channel in a wireless system. The sounding signal is transmitted from a transmitting device over multiple sub-channels of the wide channel. The receiving device estimates channel quality information based on the sounding signal for each sub-channel. The channel quality information includes estimated average SNR and recommended MCS and other channel quality metrics. The receiving device transmits a feedback message to the transmitting device. The feedback message contains the estimated channel quality information for all valid sub-channels within the transmission bandwidth. The transmitting device performs dynamic transmission bandwidth selection and fast link adaptation based on the channel quality information for all valid sub-channels.
摘要翻译：提供了一种在所有有效子信道中同时提供信道质量反馈信息的方法，以促进和改进动态传输带宽调整和快速链路自适应的性能。接收设备在无线系统中通过宽频道接收探测信号。探测信号通过宽信道的多个子信道从发送设备发送。接收装置基于每个子信道的探测信号来估计信道质量信息。信道质量信息包括估计的平均SNR和推荐的MCS等信道质量度量。接收装置向发送装置发送反馈消息。反馈消息包含传输带宽内所有有效子信道的估计信道质量信息。发送设备根据所有有效子信道的信道质量信息，执行动态传输带宽选择和快速链路自适应。

7. 发明授权

US07123876B2 Easy set-up, vehicle mounted, in-motion tracking, satellite antenna 失效
公开(公告)号：US07123876B2
公开(公告)日：2006-10-17
申请号：US10016233
申请日：2001-11-01
申请人： James June-Ming Wang , ChauChin Yang , Wen Yen Lin
发明人： James June-Ming Wang , ChauChin Yang , Wen Yen Lin
IPC分类号： H04B7/14
CPC分类号： H01Q19/175 , H01Q1/3275 , H01Q3/08 , H01Q13/10
摘要： A low profile, vehicle mounted, in-motion tracking, satellite antenna includes a pair of antenna assemblies mounted in parallel on a rotatable platform. Each antenna assembly includes two subreflectors with a plastic matching element. The outputs of the two antenna assemblies are coupled with a single phase shifter. The combined outputs are retransmitted to a receiver inside the vehicle. The satellite antenna also includes a receiver for receiving channel selection data and/or for providing two-way communication with equipment inside the vehicle. The antennae, transmitter and receiver are self-powered by a storage device which is charged by a wind driven generator. A retractable radome lowers to a lower profile when the antenna is not in use.

8. 发明授权

US10206122B2 Direction finding positioning in wireless local area networks 有权
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.

9. 发明申请

US20130201861A1 Methods for Determining a Loading of a Wireless Communications System and Communication Apparatuses Utilizing the Same 有权
标题翻译：用于确定无线通信系统的负载的方法和使用该无线通信系统的通信设备
公开(公告)号：US20130201861A1
公开(公告)日：2013-08-08
申请号：US13877970
申请日：2011-12-28
申请人： Chao-Chun Wang , Chih-Shi Yee , James June-Ming Wang
发明人： Chao-Chun Wang , Chih-Shi Yee , James June-Ming Wang
IPC分类号： H04W24/08
CPC分类号： H04W24/08 , H04W28/08 , H04W28/20
摘要： A method for determining a loading of a wideband communications channel in a wireless communications system includes: setting up a loading table for the wideband communications channel comprising a plurality of narrow band communications channels; obtaining channel characteristics of the plurality of narrow band communications channels; deciding on a number of data streams and a practical bandwidth of the wideband communications channel for a data transmission transaction and selecting one or more peer communications devices for receiving the data streams; completing the data transmission transaction with the one or more peer communications devices; updating the loading table with the information about the practical bandwidth of the wideband communications channel, the number of data streams and duration of the data transmission transaction; and computing the loading by using the information in the loading table in accordance with a pre-determined formula.
摘要翻译：一种用于确定无线通信系统中的宽带通信信道的负载的方法包括：为包括多个窄带通信信道的宽带通信信道建立加载表; 获得所述多个窄带通信信道的信道特性; 确定用于数据传输事务的多个数据流和宽带通信信道的实际带宽，并选择用于接收数据流的一个或多个对等通信设备; 完成与一个或多个对等通信设备的数据传输事务; 使用关于宽带通信信道的实际带宽的信息，数据流的数量和数据传输事务的持续时间来更新加载表; 以及根据预定公式通过使用装载表中的信息来计算加载。

10. 发明授权

US07702000B1 Method and system for weight generation in an adaptive array with spread spectrum 有权
标题翻译：具有扩展频谱的自适应阵列中权重产生的方法和系统
公开(公告)号：US07702000B1
公开(公告)日：2010-04-20
申请号：US11352187
申请日：2006-02-10
申请人： James June-Ming Wang , Jack Winters
发明人： James June-Ming Wang , Jack Winters
IPC分类号： H04B1/00
CPC分类号： H04B7/0848 , H04B1/707
摘要： The present invention comprises a method and system for weight generation in an adaptive array with spread spectrum signals. Signals received by each antenna are amplified, weighted and summed. Complex weighting is achieved by splitting the signal into inphase and quadrature components, and adjusting the gain of each of these components before combining these weighted components. The output signal after combining of the weighted signals from each antenna is downconverted to baseband, creating inphase and quadrature baseband components. The baseband components are multiplied by the spread spectrum sequence to despread the output signal and reduce the bandwidth of the desired spread spectrum signal to the original desired signal bandwidth. The signals received by each antenna are also downconverted to baseband inphase and quadrature components. Each of these components is multiplied by the spread spectrum sequence to despread the output signal and reduce the bandwidth of the desired spread spectrum signal to the original desired signal bandwidth. The despread/filtered individual antenna signals are multiplied by the despread/filtered output signal to generate antenna weights.
摘要翻译：本发明包括一种具有扩频信号的自适应阵列中权重产生的方法和系统。由每个天线接收的信号被放大，加权和求和。通过将信号分成同相和正交分量来实现复加权，并且在组合这些加权分量之前调整这些分量中的每一个的增益。将来自每个天线的加权信号组合后的输出信号下变频到基带，产生同相和正交基带分量。将基带分量乘以扩频序列以对输出信号进行解扩，并将期望的扩频信号的带宽减小到原始期望的信号带宽。由每个天线接收的信号也被下变频到基带同相和正交分量。将这些分量中的每一个乘以扩展频谱序列以对输出信号进行解扩，并将期望的扩展频谱信号的带宽减小到原始期望的信号带宽。解扩/滤波的单独天线信号乘以解扩/滤波输出信号以产生天线权重。

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