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21. 发明申请

US20200052398A1 Beam squint remediation by switchable complex impedance in a broadband phased-array antenna system 审中-公开
公开(公告)号：US20200052398A1
公开(公告)日：2020-02-13
申请号：US16659979
申请日：2019-10-22
申请人： James June-Ming Wang
发明人： James June-Ming Wang
IPC分类号： H01Q3/38 , H01Q21/00
摘要： A hierarchical phase shift and delay apparatus enables a large broadband phased-array antenna that is not subject to beam squint. The size of the phased-array antenna both in physical dimension and in number of array elements determines the number of hierarchical delay levels. A method for squint compensation distributes control signal values for phase shift, gain, and time delay for each block. Embodiments of digital squint compensation include phase shift indexers, a plurality of switches coupled to ground taps of a floating strip to adjust the characteristic impedance of a transmission line for fine adjustment; and a hierarchy of tunable squint compensation structures including die-level squint compensation structures coupled to each of the radio frequency chains; and panel-level true time-delay phase shift structures coupled to each of the die-level squint compensation structures. The article of manufacture enables aggregation of sub-arrays which are fabricated to avoid beam squint.

22. 发明授权

US10003129B2 Hierarchically elaborated phased-array antenna modules and method of calibration 有权
公开(公告)号：US10003129B2
公开(公告)日：2018-06-19
申请号：US14983293
申请日：2015-12-29
申请人： James June-Ming Wang , Chak-Ming Chie , Hamed Alsuraisry , Saleh Alsaif , Abdulelah Alshehri
发明人： James June-Ming Wang , Chak-Ming Chie , Hamed Alsuraisry , Saleh Alsaif , Abdulelah Alshehri
IPC分类号： H01Q3/00 , H01Q3/26 , H01Q3/02
CPC分类号： H01Q3/267 , H01Q3/02
摘要： An apparatus consisting of hierarchically elaborated antenna modules is calibrated by steps. Although the AWV can be calculated mathematically based on the required phase shift values of each antenna element for a beam direction to compensate for signal delay. However, in practice, due to hardware implementation imperfection, coupling in signal path for each antenna element within hardware, inaccuracies of implementations, physical misalignment, the mathematically generated AWV does not necessarily provide alignment between transmit beam and receive beam. This subset is sufficient is all practical operation. The subset of AWVs are typically called codebook and the receiver beam points to different direction by using a AWV within the codebook.

23. 发明申请

US20160174253A1 METHOD OF CHANNEL ACCESS CONTROL IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网通道接入控制方法
公开(公告)号：US20160174253A1
公开(公告)日：2016-06-16
申请号：US14903596
申请日：2014-07-13
申请人： Jianhan LIU , James June-Ming WANG , Thomas Edward PARE, JR. , Yung-Ping HSU , MEDIATEK SINGAPORE PTE. LTD.
发明人： Jianhan Liu , James June-Ming Wang , Thomas Edward Pare, JR. , Yung-Ping Hsu
IPC分类号： H04W74/00 , H04W24/08
CPC分类号： H04W74/002 , H04W24/02 , H04W24/08 , H04W48/08 , H04W74/006 , H04W84/12
摘要： A method to improve the area throughput of dense wireless local area networks (WLAN) by channel access control is proposed. The method allows an access point to obtain information of a plurality of stations within the wireless network. The access point classifies the plurality of stations into at least one group of stations and assigns a group identification (ID) according to the obtained information. The group ID and channel access control parameters are sent to the stations that are classified into the certain group. The stations in each of the group use the received channel access control parameters to communicate with the access point.
摘要翻译：提出了一种通过信道访问控制来提高密集无线局域网（WLAN）面积吞吐量的方法。该方法允许接入点获得无线网络内的多个站的信息。接入点将多个站分类为至少一组站，并根据获得的信息分配组标识（ID）。组ID和通道访问控制参数被发送到分类到特定组的站。每个组中的站使用接收到的信道访问控制参数与接入点进行通信。

24. 发明授权

US09253767B2 PSMP-based downlink multi-user MIMO communications 有权
标题翻译：基于PSMP的下行多用户MIMO通信
公开(公告)号：US09253767B2
公开(公告)日：2016-02-02
申请号：US13583739
申请日：2011-09-08
申请人： James June-Ming Wang , Huanchun Ye
发明人： James June-Ming Wang , Huanchun Ye
IPC分类号： H04W72/04 , H04W52/02 , H04L5/00 , H04W28/26 , H04W48/16 , H04W52/28 , H04W72/12 , H04W84/12 , H04W88/08 , H04B7/04 , H04L25/02 , H04L25/03
CPC分类号： H04W72/042 , H04B7/0452 , H04L5/0023 , H04L5/0055 , H04L5/0094 , H04L25/0204 , H04L25/03891 , H04W28/26 , H04W48/16 , H04W52/0209 , H04W52/0219 , H04W52/287 , H04W72/1289 , H04W84/12 , H04W88/08 , Y02D70/1262 , Y02D70/142 , Y02D70/444
摘要： A scheduling-based downlink MU-MIMO mechanism is proposed in a wireless communication system. An access point transmits a first scheduling message to a plurality of stations. The first scheduling message reserves a first transmission burst for channel sounding. The AP then transmits a sounding signal and in response receives channel state information (CSI) from the plurality of stations. Based on the CSI, the AP performs MU-MIMO encoding and applies transmit beamforming (precoding). The AP transmits a second scheduling message that reserves a second transmission burst for MU-MIMO transmission. The AP then transmits downlink data streams to multiple stations simultaneously. Finally, the AP receives uplink acknowledgements from the stations. In one embodiment, the scheduling-based MU-MIMO is implemented using PSMP scheduling technique. PSMP-based downlink MU-MIMO allows both 802.11n and 802.11ac stations to process multiple spatial streams with reduced complexity, enhanced performance, and significant power saving.
摘要翻译：在无线通信系统中提出了基于调度的下行MU-MIMO机制。接入点向多个站发送第一调度消息。第一调度消息保留用于信道探测的第一传输突发。 AP然后发送探测信号，并且响应于从多个站接收信道状态信息（CSI）。基于CSI，AP执行MU-MIMO编码并应用发射波束成形（预编码）。 AP发送第二调度消息，其保留用于MU-MIMO传输的第二传输突发。然后，AP同时向多个站发送下行链路数据流。最后，AP从站接收上行确认。在一个实施例中，使用PSMP调度技术来实现基于调度的MU-MIMO。基于PSMP的下行链路MU-MIMO允许802.11n和802.11ac站能够以降低的复杂性，增强的性能和显着的功率节省来处理多个空间流。

25. 发明授权

US08442592B2 Wireless communication device capable of achieving a functionality by selecting modules for optimal performance 有权
标题翻译：能够通过选择用于最佳性能的模块来实现功能的无线通信设备
公开(公告)号：US08442592B2
公开(公告)日：2013-05-14
申请号：US13607104
申请日：2012-09-07
申请人： Robert Warner , Jack Winters , James June-Ming Wang
发明人： Robert Warner , Jack Winters , James June-Ming Wang
IPC分类号： H04M1/00 , H04B1/00 , H04B15/00
CPC分类号： H04W72/02 , H04B7/0608 , H04B7/0817 , H04B7/0854 , H04B7/0857 , H04B7/0874 , H04W24/02 , H04W52/0229 , H04W72/046 , H04W84/12 , Y02D70/142 , Y02D70/144 , Y02D70/444
摘要： Techniques for adapting a wireless communication device or system to support a desired functionality of the wireless communication system at an optimized performance and economic benefit are discussed. The desired functionality can be determined by defined criteria such as a maximum range of communication with the wireless communication system, quality of a transmission link in the wireless communication system, capacity of the wireless communication system, power consumption of the wireless communication system, protocols supported in the wireless communication system, modulation techniques used in the wireless communication system and processing techniques for combining signals in the wireless communication system. The system can be adapted by varying one or more of modules (e.g., components or processing techniques) used in the wireless communication system.
摘要翻译：讨论了以优化的性能和经济效益来适配无线通信设备或系统以支持无线通信系统的期望功能的技术。期望的功能可以通过诸如与无线通信系统的最大通信范围，无线通信系统中的传输链路的质量，无线通信系统的容量，无线通信系统的功耗，支持的协议在无线通信系统中，在无线通信系统中使用的调制技术和用于组合无线通信系统中的信号的处理技术。可以通过改变在无线通信系统中使用的模块（例如，组件或处理技术）中的一个或多个来适配系统。

26. 发明申请

US20130058239A1 Integrity and Quality Monitoring and Signaling for Sounding and Reduced Feedback 审中-公开
标题翻译：完整性和质量监测和信号发声和减少反馈
公开(公告)号：US20130058239A1
公开(公告)日：2013-03-07
申请号：US13635360
申请日：2011-10-20
申请人： James June-Ming Wang , Jianhan Liu , Vishakan Ponnampalam , Chao-Chun Wang , Huanchun Ye
发明人： James June-Ming Wang , Jianhan Liu , Vishakan Ponnampalam , Chao-Chun Wang , Huanchun Ye
IPC分类号： H04W24/00
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/065 , H04B7/0658 , H04L1/0026 , H04L1/0028 , H04L25/0226 , H04L25/0228
摘要： A method of sounding and feedback with channel quality information and reduced overhead is provided. A receiving station receives a sounding signal transmitted from an access point over multiple sub-channels of a wide channel in a wireless network. The receiving station detects channel quality based on the received sounding signal for each sub-channel. The receiving station then performs channel estimation based on the received sounding signal and thereby determining feedback information. Finally, the receiving station transmits a feedback message to the access point, the feedback message contains NULL feedback information, reduced feedback information, or channel integrity/quality indicators based on the channel quality information for each sub-channel. Based on the feedback message, the access point may repeat the sounding process, narrow the transmission bandwidth, or select only stations who have indicated uncorrupted channel sounding for MU-MMO transmission.
摘要翻译：提供了一种利用信道质量信息和降低开销的声音和反馈方法。接收站通过无线网络中的宽信道的多个子信道接收从接入点发送的探测信号。接收站基于接收到的每个子信道的探测信号来检测信道质量。然后，接收站基于接收的探测信号进行信道估计，从而确定反馈信息。最后，接收站向接入点发送反馈消息，反馈消息基于每个子信道的信道质量信息包含NULL反馈信息，减少的反馈信息或信道完整性/质量指示符。基于反馈消息，接入点可以重复发声过程，缩小传输带宽，或仅选择指示MU-MMO传输不通道信道探测的台。

27. 发明授权

US08306574B2 Method and system for an adaptive wireless communication system optimized for economic benefit 有权
标题翻译：针对经济效益优化的自适应无线通信系统的方法和系统
公开(公告)号：US08306574B2
公开(公告)日：2012-11-06
申请号：US10695932
申请日：2003-10-29
申请人： Robert Warner , Jack Winters , James June-Ming Wang
发明人： Robert Warner , Jack Winters , James June-Ming Wang
IPC分类号： H04M1/00 , H04B15/00
CPC分类号： H04W72/02 , H04B7/0608 , H04B7/0817 , H04B7/0854 , H04B7/0857 , H04B7/0874 , H04W24/02 , H04W52/0229 , H04W72/046 , H04W84/12 , Y02D70/142 , Y02D70/144 , Y02D70/444
摘要： The present invention relates to a method and system for adapting a wireless communication system to support a desired functionality of the wireless communication system at an optimized performance and economic benefit. The desired functionality can be determined by defined criteria such as a maximum range of communication with the wireless communication system, quality of a transmission link in the wireless communication system, capacity of the wireless communication system, power consumption of the wireless communication system, protocols supported in the wireless communication system, modulation techniques used in the wireless communication system and processing techniques for combining signals in the wireless communication system. The system can be adapted by varying one or more of the number of components or processing techniques used in the wireless communication system.
摘要翻译：本发明涉及一种用于使无线通信系统适应无线通信系统的期望功能的方法和系统，其具有优化的性能和经济效益。期望的功能可以通过诸如与无线通信系统的最大通信范围，无线通信系统中的传输链路的质量，无线通信系统的容量，无线通信系统的功耗，支持的协议在无线通信系统中，在无线通信系统中使用的调制技术和用于组合无线通信系统中的信号的处理技术。可以通过改变在无线通信系统中使用的多个组件或处理技术中的一个或多个来适配系统。

28. 发明授权

US07391381B2 Vehicle mounted satellite antenna system with in-motion tracking using beam forming 有权
标题翻译：车载卫星天线系统，具有使用波束形成的运动跟踪
公开(公告)号：US07391381B2
公开(公告)日：2008-06-24
申请号：US10752794
申请日：2004-01-07
申请人： James June-Ming Wang , Chau Chin Yang , Franklin Xiaotian Liu , Youren Chen , Wenzhang Wang
发明人： James June-Ming Wang , Chau Chin Yang , Franklin Xiaotian Liu , Youren Chen , Wenzhang Wang
IPC分类号： H01Q1/32 , H01Q13/10
CPC分类号： G01S3/40 , G01S3/14 , G01S3/42 , H01Q1/3275 , H01Q3/04 , H01Q21/005
摘要： The present invention relates to a vehicle mountable satellite antenna as defined in the claims which is operable while the vehicle is in motion. The satellite antenna of the present invention can be installed on top of (or embedded into) the roof of a vehicle. The antenna is capable of providing high gain and a narrow antenna beam for aiming at a satellite direction and enabling broadband communication to vehicle. The present invention provides a vehicle mounted satellite antenna which has low axial ratio, high efficiency and has low grating lobes gain. The vehicle mounted satellite antenna of the present invention provides two simultaneous polarization states. In one embodiment, a hybrid mechanic and electronic steering approach provides a more reasonable cost and performance trade-off. The antenna aiming in the elevation direction is achieved via control of an electronic beamforming network. The antenna is mounted on a rotatable platform under mechanical steering and motion control for aiming the antenna in the azimuth direction. Such approach significantly reduces the complexity and increases the reliability of the mechanical design. The antenna height is compatible to the two-dimensional electronic steering phased-array antenna. Additionally, the number of the electronic processing elements required is considerably reduced from that of the conventional two-dimensional electronic steering phased-array antenna, thereby allowing for low cost and large volume commercial production. The present invention provides electronically generated left, right, up, and down beams for focusing the antenna beam toward the satellite while the vehicle is moving. All of the beams are simultaneously available for use in the motion beam tracking. This provides much faster response and less signal degradation.
摘要翻译：本发明涉及一种如权利要求书所限定的可车载卫星天线，其可在车辆运动时操作。本发明的卫星天线可以安装在车辆顶部（或嵌入）车顶。天线能够提供高增益和窄天线波束，用于瞄准卫星方向并实现与车辆的宽带通信。本发明提供一种具有低轴比，高效率并且具有低的光栅增益的车载卫星天线。本发明的车载卫星天线提供两个同时的偏振状态。在一个实施例中，混合机械和电子转向方法提供了更合理的成本和性能权衡。通过电子波束成形网络的控制来实现朝向高度方向的天线。天线安装在机械转向和运动控制下的可旋转平台上，用于将天线瞄准方位角方向。这种方法显着降低了机械设计的复杂性并增加了其可靠性。天线高度与二维电子转向相控阵天线兼容。此外，所需的电子处理元件的数量比传统的二维电子转向相控阵天线的数量大大减少，从而允许低成本和大量的商业生产。本发明提供电子产生的左，右，上，下光束，用于在车辆移动时将天线光束朝向卫星聚焦。所有光束同时可用于运动光束跟踪。这提供了更快的响应和更少的信号衰减。

29. 发明申请

US20070178862A1 Weight Training For Antenna Array Beam Patterns in FDD/TDMA Terminals 审中-公开
标题翻译： FDD / TDMA终端天线阵列光束模式的重量训练
公开(公告)号：US20070178862A1
公开(公告)日：2007-08-02
申请号：US11627149
申请日：2007-01-25
申请人： Jack Winters , James June-Ming Wang
发明人： Jack Winters , James June-Ming Wang
IPC分类号： H04B17/02
CPC分类号： H04B7/0617 , H04B7/0857
摘要： A method for weight training for beamforming in handset terminals deployed in a system employing Frequency Division Duplexing and Time-Division Multiple Access (FDD/TDMA). Generally there is signal in time slots that are not destined for a certain terminal. During this time the receiver scans a beam around the terminal and measures received signal strength, determining the best beam angle and storing corresponding weights for transmission.
摘要翻译：一种部署在采用频分双工和时分多址（FDD / TDMA）的系统中的手机终端中用于波束成形的权重训练的方法。一般来说，在时隙中有信号不是用于某个终端。在此期间，接收机扫描终端周围的波束并测量接收信号强度，确定最佳波束角并存储相应的权重进行传输。

30. 发明申请

US20180131102A1 Beam squint remediation apparatus in a broadband phased-array antenna system 审中-公开
公开(公告)号：US20180131102A1
公开(公告)日：2018-05-10
申请号：US15460237
申请日：2017-03-16
申请人： James June-Ming Wang
发明人： James June-Ming Wang
IPC分类号： H01Q21/22 , H01Q3/38
CPC分类号： H01Q3/38 , H01Q21/0025
摘要： A hierarchical phase shift and delay apparatus enables a large broadband phased-array antenna that is not subject to beam squint. The size of the phased-array antenna both in physical dimension and in number of array elements determines the number of hierarchical delay levels. A method for squint compensation distributes control signal values for phase shift, gain, and time delay for each block. Embodiments of digital squint compensation include phase shift indexers, a plurality of switches coupled to ground taps of a floating strip to adjust the characteristic impedance of a transmission line for fine adjustment; and a hierarchy of tunable squint compensation structures including die-level squint compensation structures coupled to each of the radio frequency chains; and panel-level true time-delay phase shift structures coupled to each of the die-level squint compensation structures. The article of manufacture enables aggregation of sub-arrays which are fabricated to avoid beam squint.

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