公开(公告)号：US08682338B2

公开(公告)日：2014-03-25

申请号：US13211243

申请日：2011-08-16

Applicant: Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Albert S. Lee

Inventor： Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic ,  Albert S. Lee

IPC: H04W72/00

CPC classification number: H04W72/0453 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/204 ,  H03F2201/3224 ,  H03F2201/3233 ,  H04B10/2575 ,  H04B10/25753 ,  H04L5/0032 ,  H04L5/0048 ,  H04L25/02 ,  H04L45/56 ,  H04L47/125 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2213/1301 ,  H04W24/02 ,  H04W40/02 ,  H04W72/0486 ,  H04W88/085

Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc. As a result, the SDR DAS can increase the efficiency and traffic capacity of the operators' wireless network.

Abstract translation: 本公开是基于软件定义无线电（SDR）的分布式天线系统（DAS）的新颖实用性，其是现场可重配置的并且支持多调制方案（与调制无关），多载波，多频带和多信道 。 本公开使得能够高度灵活地管理，控制，增强，促进分布式无线网络的使用和性能，例如灵活的联播，自动流量负载平衡，网络和无线电资源优化，网络校准，自主/辅助调试 载波池，自动频率选择，载波放置，流量监控，流量标签，导频信标等。因此，SDR DAS可以提高运营商无线网络的效率和流量。

公开(公告)号：US20070052612A1

公开(公告)日：2007-03-08

申请号：US11220549

申请日：2005-09-08

Applicant: Sasa Trajkovic ,  Petrus Bezuidenhout ,  Michael Schefter ,  Pervez Siddiqui ,  Glen Dwornik ,  Leonard Russell

Inventor： Sasa Trajkovic ,  Petrus Bezuidenhout ,  Michael Schefter ,  Pervez Siddiqui ,  Glen Dwornik ,  Leonard Russell

IPC: H01Q19/12

CPC classification number: H04B1/086 ,  H01Q3/08 ,  H01Q19/13 ,  H04B1/3888

Abstract: A high-performance portable microwave communication unit, consists of a directional antenna, RF transceiver and high-speed data/video processing unit for use in terrestrial point-to-point communications or as a ground station in a satellite communication system. For transportation, the unit is disassembled, folded down and stowed in two airline-checkable hard-shell cases. Each case can be equipped with shoulder straps such that it can be carried like a backpack, a set of wheels so it can be rolled, attached to a MOLLE frame so that it can be carried as a backpack and which allows attachment of accessories. The cases and their interiors have been designed to provide protection for the communication unit, while the construction of the unit itself involves novel mechanical features that allow for compact stowage as well as for rapid disassembly and assembly.

Abstract translation: 高性能便携式微波通信单元由定向天线，RF收发器和用于地面点对点通信的高速数据/视频处理单元或卫星通信系统中的地面站组成。 对于运输，装置拆卸，折叠并存放在两个航空公司可检查的硬壳外壳中。 每种情况都可以配备肩带，使其可以像背包，一组轮子一样携带，因此可以滚动，连接到一个MOLLE框架上，以便它可以作为背包携带，并允许附件的附件。 这些箱体及其内部设计用于为通讯单元提供保护，而单元本身的构造则涉及新颖的机械特性，可以实现紧凑的装载以及快速拆卸和组装。

公开(公告)号：US20130077713A1

公开(公告)日：2013-03-28

申请号：US13625760

申请日：2012-09-24

Applicant: Wan-Jong Kim ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

Inventor： Wan-Jong Kim ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

IPC: H04B15/00

CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H03F1/3247 ,  H04B1/0017 ,  H04B2001/0425 ,  H04L27/368

Abstract: A digital predistortion linearization method is provided for increasing the instantaneous or operational bandwidth for RF power amplifiers employed in wideband communication systems. Embodiments of the present invention provide a method of increasing DPD linearization bandwidth using a feedback filter integrated into existing digital platforms for multi-channel wideband wireless transmitters. An embodiment of the present invention utilizes a DPD feedback signal in conjunction with a low power band-pass filter in the DPD feedback path.

Abstract translation: 提供数字预失真线性化方法来增加在宽带通信系统中使用的RF功率放大器的瞬时或者操作带宽。 本发明的实施例提供了一种使用集成到用于多信道宽带无线发射机的现有数字平台中的反馈滤波器来增加DPD线性化带宽的方法。 本发明的一个实施例利用DPD反馈信号与DPD反馈路径中的低功率带通滤波器相结合。

公开(公告)号：US20140072064A1

公开(公告)日：2014-03-13

申请号：US13602818

申请日：2012-09-04

Applicant: Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

Inventor： Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

IPC: H04B7/04

CPC classification number: H04B7/04 ,  H04B7/022 ,  H04B10/25753 ,  H04W88/085

Abstract: A distributed antenna system includes a master unit including a downlink RF input operable to receive an RF input signal from a downlink port of a base station, a first optical port, and a second optical port. The distributed antenna system also includes a first remote unit coupled to the first optical port. The first remote unit comprises a downlink antenna port and a first uplink antenna port and a second remote unit coupled to the second optical port of the master unit. The second remote unit comprises a downlink antenna port and a second uplink antenna port. The master unit is operable to transmit a first RF signal associated with the first RF uplink signal to a first uplink port of the base station and transmit a second RF signal associated with the second RF uplink signal to a second uplink port of the base station.

Abstract translation: 分布式天线系统包括主单元，其包括可操作以从基站的下行链路端口，第一光端口和第二光端口接收RF输入信号的下行链路RF输入。 分布式天线系统还包括耦合到第一光端口的第一远程单元。 第一远程单元包括下行链路天线端口和第一上行链路天线端口以及耦合到主单元的第二光端口的第二远程单元。 第二远程单元包括下行链路天线端口和第二上行链路天线端口。 主单元可操作地将与第一RF上行链路信号相关联的第一RF信号发送到基站的第一上行链路端口，并将与第二RF上行链路信号相关联的第二RF信号发送到基站的第二上行链路端口。

公开(公告)号：US20070241155A1

公开(公告)日：2007-10-18

申请号：US11740108

申请日：2007-04-25

Applicant: Sasa Trajkovic ,  Petrus Bezuidenhout ,  Michael Schefter ,  Pervez Siddiqui ,  Glen Dwornik ,  Leonard Russell

Inventor： Sasa Trajkovic ,  Petrus Bezuidenhout ,  Michael Schefter ,  Pervez Siddiqui ,  Glen Dwornik ,  Leonard Russell

IPC: A45F3/10

CPC classification number: H04B1/086 ,  H01Q3/08 ,  H01Q19/13 ,  H04B1/3888

Abstract: A hard shell portable case for transportation and protection of devices such as portable satellite terminals. Each case can be equipped with shoulder straps such that it can be carried like a backpack, a set of wheels so it can be rolled, attached to a MOLLE frame so that it can be carried as a backpack and which allows attachment of accessories. The cases and their interiors have been designed to provide protection for the portable terminal, while the exterior is shaped to conform to the shape of a wearer's back.

Abstract translation: 用于运输和保护便携式卫星终端等设备的硬壳便携式机箱。 每种情况都可以配备肩带，使其可以像背包，一组轮子一样携带，因此可以滚动，连接到一个MOLLE框架上，以便它可以作为背包携带，并允许附件的附件。 这些外壳和它们的内部设计成为便携式终端提供保护，而外部的形状适合于佩戴者背部的形状。

公开(公告)号：US20070052607A1

公开(公告)日：2007-03-08

申请号：US11308838

申请日：2006-05-12

Applicant: Glen Dwornik ,  Leonard Russell ,  Wayne Tressel ,  Michael Schefter ,  Joseph Yang ,  Sasa Trajkovic ,  Petrus Bezuidenhout

Inventor： Glen Dwornik ,  Leonard Russell ,  Wayne Tressel ,  Michael Schefter ,  Joseph Yang ,  Sasa Trajkovic ,  Petrus Bezuidenhout

IPC: H01Q3/00

CPC classification number: H04B1/086 ,  H01Q3/08 ,  H01Q19/13 ,  H04B1/3888

Abstract: A motorized antenna positioning mechanism in a portable microwave communication unit for use as a ground station in a satellite communication system. The antenna positioner has compact and low profile azimuth wire drive mechanics, azimuth and polarization angle sensors that are not affected by slippage and backlash, and an elevation drive mechanism which neutralizes the pressure on the motor axis due to the weight of the parabolic antenna.

Abstract translation: 便携式微波通信单元中的电动天线定位机构，用作卫星通信系统中的地面站。 天线定位器具有紧凑的低轮廓方位线驱动力学，不受滑移和间隙影响的方位角和偏振角传感器，以及由于抛物面天线的重量而中和马达轴上的压力的升降驱动机构。

公开(公告)号：US20100045510A1

公开(公告)日：2010-02-25

申请号：US11309307

申请日：2006-07-25

Applicant: Jason Lopez ,  Glen Dwornik ,  Petrus Bezuidenhout ,  Michael Schefter ,  Stanislav Kouzmine ,  Sasa Trajkovic

Inventor： Jason Lopez ,  Glen Dwornik ,  Petrus Bezuidenhout ,  Michael Schefter ,  Stanislav Kouzmine ,  Sasa Trajkovic

IPC: G01S7/40 ,  H04B7/10 ,  H04B7/185

CPC classification number: H04B7/10 ,  H01Q1/1257 ,  H01Q19/10 ,  H01Q19/12 ,  H04B17/318

Abstract: A system for accurate automatic satellite acquisition by a portable satellite terminal. The system includes a software program that coordinates inputs from several measurement aids to control antenna position. These aids include a GPS receiver, antenna azimuth, elevation and polarization angle sensors, and the terminal's modem, DVB receiver and spectrum analyzer, which contains a beacon detector also serving as Receive Signal Strength Indicator (RSSI). For satellite recognition, the spectral analysis and RSSI function are complemented by the lock/unlock indications provided by the modem and the DVB receiver. Under the control of the software program, the modem, DVB receiver and spectrum analyzer, in conjunction with an extensive database of satellites and their signal characteristics, provide the means for reliable validation of final alignment.

Abstract translation: 一种便携式卫星终端精确自动卫星采集系统。 该系统包括一个软件程序，用于协调来自多个测量辅助装置的输入以控制天线位置。 这些辅助设备包括GPS接收器，天线方位角，仰角和极化角度传感器，以及终端的调制解调器，DVB接收机和频谱分析仪，其中还包含一个也可以作为接收信号强度指示器（RSSI）的信标检测器。 对于卫星识别，频谱分析和RSSI功能由调制解调器和DVB接收机提供的锁定/解锁指示补充。 在软件程序的控制下，调制解调器，DVB接收机和频谱分析仪结合广泛的卫星数据库及其信号特征，为最终对准的可靠验证提供了手段。

公开(公告)号：US08817848B2

公开(公告)日：2014-08-26

申请号：US13602818

申请日：2012-09-04

Applicant: Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

Inventor： Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

IPC: H04B3/36 ,  H04B7/17 ,  H04B17/02 ,  H04L25/20 ,  H04L25/52

CPC classification number: H04B7/04 ,  H04B7/022 ,  H04B10/25753 ,  H04W88/085

Abstract: A distributed antenna system includes a master unit including a downlink RF input operable to receive an RF input signal from a downlink port of a base station, a first optical port, and a second optical port. The distributed antenna system also includes a first remote unit coupled to the first optical port. The first remote unit comprises a downlink antenna port and a first uplink antenna port and a second remote unit coupled to the second optical port of the master unit. The second remote unit comprises a downlink antenna port and a second uplink antenna port. The master unit is operable to transmit a first RF signal associated with the first RF uplink signal to a first uplink port of the base station and transmit a second RF signal associated with the second RF uplink signal to a second uplink port of the base station.

Abstract translation: 分布式天线系统包括主单元，其包括可操作以从基站的下行链路端口，第一光端口和第二光端口接收RF输入信号的下行链路RF输入。 分布式天线系统还包括耦合到第一光端口的第一远程单元。 第一远程单元包括下行链路天线端口和第一上行链路天线端口以及耦合到主单元的第二光端口的第二远程单元。 第二远程单元包括下行链路天线端口和第二上行链路天线端口。 主单元可操作地将与第一RF上行链路信号相关联的第一RF信号发送到基站的第一上行链路端口，并将与第二RF上行链路信号相关联的第二RF信号发送到基站的第二上行链路端口。

公开(公告)号：US08200150B2

公开(公告)日：2012-06-12

申请号：US11309307

申请日：2006-07-25

Applicant: Jason Lopez ,  Glen Dwornik ,  Petrus Bezuidenhout ,  Michael Schefter ,  Stanislav Kouzmine ,  Sasa Trajkovic

Inventor： Jason Lopez ,  Glen Dwornik ,  Petrus Bezuidenhout ,  Michael Schefter ,  Stanislav Kouzmine ,  Sasa Trajkovic

IPC: H04B7/19

CPC classification number: H04B7/10 ,  H01Q1/1257 ,  H01Q19/10 ,  H01Q19/12 ,  H04B17/318

Abstract: A system for accurate automatic satellite acquisition by a portable satellite terminal. The system includes a software program that coordinates inputs from several measurement aids to control antenna position. These aids include a GPS receiver, antenna azimuth, elevation and polarization angle sensors, and the terminal's modem, DVB receiver and spectrum analyzer, which contains a beacon detector also serving as Receive Signal Strength Indicator (RSSI). For satellite recognition, the spectral analysis and RSSI function are complemented by the lock/unlock indications provided by the modem and the DVB receiver. Under the control of the software program, the modem, DVB receiver and spectrum analyzer, in conjunction with an extensive database of satellites and their signal characteristics, provide the means for reliable validation of final alignment.

Abstract translation: 一种便携式卫星终端精确自动卫星采集系统。 该系统包括一个软件程序，用于协调来自多个测量辅助装置的输入以控制天线位置。 这些辅助设备包括GPS接收器，天线方位角，仰角和极化角度传感器，以及终端的调制解调器，DVB接收机和频谱分析仪，其中还包含一个也可以作为接收信号强度指示器（RSSI）的信标检测器。 对于卫星识别，频谱分析和RSSI功能由调制解调器和DVB接收机提供的锁定/解锁指示补充。 在软件程序的控制下，调制解调器，DVB接收机和频谱分析仪结合广泛的卫星数据库及其信号特征，为最终对准的可靠验证提供了手段。