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1. 发明授权

US5969675A Method and system for beamformer primary power reduction in a nominally-loaded communications node 失效
标题翻译：名义加载的通信节点中的波束形成器主功率降低的方法和系统
公开(公告)号：US5969675A
公开(公告)日：1999-10-19
申请号：US56130
申请日：1998-04-07
申请人： John Richard Erlick
发明人： John Richard Erlick
IPC分类号： H01Q3/24 , H01Q3/26
CPC分类号： H01Q3/26 , H01Q3/24 , H01Q3/2605 , Y02B60/50
摘要： A communications node (FIG. 1, 5) communicating with an individual subscriber unit (80) determines that a nominal-load condition exists. The communications node (5) then reduces the number of elements of the transmit and receive phased array antennas (10, 60) used to form receive and transmit communication beams. This reduces the amount of power required by the transmit and receive digital beamformers (15,50) which control the transmit antenna (10) and the receive antenna (60). In order to maintain the radio link with the individual subscriber unit (80), the communications node (5) adjusts the modulation characteristics of the radio link between the communications node (5) and the individual subscriber unit (80). This compensates for the loss of the antenna elements and thus reduces the power consumption of the transmit and receive phased array antennas (10, 60) under nominally-loaded conditions.
摘要翻译：与个体用户单元（80）通信的通信节点（图1，5）确定存在标称负载条件。通信节点（5）然后减少用于形成接收和发送通信波束的发射和接收相控阵列天线（10,60）的元件的数量。这减少了控制发射天线（10）和接收天线（60）的发射和接收数字波束形成器（15,50）所需的功率量。为了维持与个体用户单元（80）的无线电链路，通信节点（5）调整通信节点（5）和个体用户单元（80）之间的无线电链路的调制特性。这补偿了天线元件的损耗，从而降低了在标称负载条件下发射和接收相控阵天线（10,60）的功耗。

2. 发明授权

US5929809A Method and system for calibration of sectionally assembled phased array antennas 失效
标题翻译：分段组装相控阵天线的校准方法和系统
公开(公告)号：US5929809A
公开(公告)日：1999-07-27
申请号：US56128
申请日：1998-04-07
申请人： John Richard Erlick , Jonathan Henry Gross
发明人： John Richard Erlick , Jonathan Henry Gross
IPC分类号： H01Q3/26 , H01Q3/24
CPC分类号： H01Q3/267
摘要： The invention describes a method and system for the calibration of sectionally assembled phased array antennas. When a large, multi-sectioned phased array antenna on board a satellite (10, FIG. 1) is unfolded during deployment, an error in the alignment of a phased array antenna section (25) can cause an error in the pointing angle of the transmit antenna beam (50). A suitable receive antenna (80) receives a signal from the transmit antenna beam (50) which enables a processor unit (95, FIG. 2) to determine the required correction factor. The correction factor is then applied to the beam coefficients which control the beam of the phased array antenna section (25). Subsequent to a first measurment, the correction factor can be updated to minimize the impact of antenna element failures on the resulting antenna pattern.
摘要翻译：本发明描述了用于校准分段组装相控阵天线的方法和系统。当在卫星（10，图1）上的大的多分段相控阵天线在展开期间展开时，相控阵天线部分（25）的对准中的误差可能导致相位阵列天线部分发射天线波束（50）。合适的接收天线（80）从发射天线波束（50）接收信号，使得处理器单元（95，图2）能够确定所需的校正因子。然后将校正因子应用于控制相控阵天线部分（25）的光束的光束系数。在第一测量之后，可以更新校正因子以最小化天线元件故障对所得天线图案的影响。

3. 发明授权

US06052085A Method and system for beamforming at baseband in a communication system 失效
标题翻译：通信系统中基带波束成形的方法和系统
公开(公告)号：US06052085A
公开(公告)日：2000-04-18
申请号：US92187
申请日：1998-06-05
申请人： Duke E. Hanson , James W. Startup , Joel L. Gross , Jonathan Henry Gross , John Richard Erlick
发明人： Duke E. Hanson , James W. Startup , Joel L. Gross , Jonathan Henry Gross , John Richard Erlick
IPC分类号： H01Q3/26 , H01Q25/00 , H01Q3/22 , H01Q3/24
CPC分类号： H01Q3/26 , H01Q25/00
摘要： In a satellite communication system, beamforming is performed at baseband frequencies forming only beams which convey information. A received signal is applied to a downconverter (FIG. 1, 30), followed by a channelizer (50), and digital beamformer (60). The order of operations being reversed in order to generate a transmit beam. By performing the beamforming at baseband, the system can be allowed to form only those beams which convey information between a communications node and a subscriber. As a result, the system provides communication services to subscribers in a more cost-effective manner.
摘要翻译：在卫星通信系统中，波束成形在仅形成传送信息的波束的基带频率下执行。接收到的信号被施加到下变频器（图1,30），随后是通道化器（50）和数字波束形成器（60）。为了产生发射波束，操作顺序相反。通过在基带处执行波束成形，可以允许系统仅形成在通信节点和用户之间传送信息的那些波束。因此，该系统以更具成本效益的方式向订户提供通信服务。

4. 发明授权

US06195037B1 Method and apparatus for increased system capacity using antenna beamforming 有权
标题翻译：使用天线波束成形增加系统容量的方法和装置
公开(公告)号：US06195037B1
公开(公告)日：2001-02-27
申请号：US09323349
申请日：1999-06-01
申请人： Jonathan H. Gross , John Richard Erlick , Thomas Peter Emmons, Jr.
发明人： Jonathan H. Gross , John Richard Erlick , Thomas Peter Emmons, Jr.
IPC分类号： H04B7185
CPC分类号： H04B7/2041 , Y02D70/164 , Y02D70/446
摘要： In a satellite communications system (100), system capacity is improved using a satellite (110 and 120) that includes a main mission antenna (MMA) (310 FIG. 3), antenna subsystem (320), and controller (350). Antenna subsystem (320) comprises a beamformer and associated software to optimize the beam shape and cell position with respect to the satellite's location. In one example, beam optimization is performed using a location based on latitude. Satellite (110 and 120) determines its spatial position and determines its latitudinal location based on this position information. The satellite determines the number of cells, the cell sizes, and the beam steering angles required at this latitudinal location. In other cases, beam optimization is performed using a location based on latitude and longitude, system loading, and satellite health and status.
摘要翻译：在卫星通信系统（100）中，使用包括主任务天线（MMA）（310图3），天线子系统（320）和控制器（350）的卫星（110和120）来改进系统容量。天线子系统（320）包括波束形成器和相关联的软件，以相对于卫星的位置优化波束形状和小区位置。在一个示例中，使用基于纬度的位置来执行波束优化。卫星（110和120）确定其空间位置，并基于该位置信息确定其纬度位置。卫星确定在这个纬度位置所需的单元数，单元格大小和波束转向角。在其他情况下，使用基于纬度和经度，系统负载和卫星健康状态的位置来执行波束优化。

5. 发明授权

US06614769B1 Communications unit for seamless handover between networks and method of use therefor 有权
标题翻译：网络之间无缝切换的通信单元及其使用方法
公开(公告)号：US06614769B1
公开(公告)日：2003-09-02
申请号：US09323324
申请日：1999-06-01
申请人： John Richard Erlick , Duke Edward Hanson , Shawn Hogberg , Isaac Eteminan
发明人： John Richard Erlick , Duke Edward Hanson , Shawn Hogberg , Isaac Eteminan
IPC分类号： H04Q720
CPC分类号： H04W36/30
摘要： A communications unit determines that a wireless link between itself and a first communications network has degraded beyond acceptable limits (FIG. 2, 200). The communications unit signals a second, unsynchronized, communications network during a pause in outgoing voice (230) in order to acquire a channel and continue the call using the second network. When the second communications network indicates that sufficient resources are available, the communications unit transmits a Handover Trigger to the second network (FIG. 4, 400). In response to the Handover Trigger, the first and second communications network establish a connection between each other (460, 470). When the connection has been established, the communications unit receives a channel assignment (500) and continues the call using the resources of the second communications network.
摘要翻译：通信单元确定其本身与第一通信网络之间的无线链路已经劣化到可接受的限制之外（图2,200）。通信单元在输出语音（230）的暂停期间向第二非同步的通信网络发信号，以便获取信道并使用第二网络继续呼叫。当第二通信网络指示有足够的资源可用时，通信单元向第二网络发送切换触发（图4，400）。响应于切换触发器，第一和第二通信网络建立彼此之间的连接（460,470）。当建立连接时，通信单元接收信道分配（500），并使用第二通信网络的资源继续呼叫。

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