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1.发明授权System for providing optimal satellite communication via a MEO/LEO satellite constellation 失效用于通过MEO / LEO卫星星座提供最佳卫星通信的系统公开(公告)号：US06684056B1
公开(公告)日：2004-01-27
申请号：US09546265
申请日：2000-04-10
申请人： Thomas Peter Emmons, Jr. , Shawn W. Hogberg , Cynthia C. Matthews , Michael D. Ince , Susan L. Harris , Robert A. Peters , James W. Startup , Jonathan H. Gross , John R. Erlick , Allen H. ‘Skip’ Nelson , Craig L. Fullerton , Jim E. Helm , John G. Lambrou , David L. Krueger
发明人： Thomas Peter Emmons, Jr. , Shawn W. Hogberg , Cynthia C. Matthews , Michael D. Ince , Susan L. Harris , Robert A. Peters , James W. Startup , Jonathan H. Gross , John R. Erlick , Allen H. ‘Skip’ Nelson , Craig L. Fullerton , Jim E. Helm , John G. Lambrou , David L. Krueger
IPC分类号： H04B7185
CPC分类号： H04B7/19
摘要： A method of increasing satellite communication quality by using a MEO satellite constellation (12) and a LEO satellite constellation (14) in combination with a decision algorithm which selects the appropriate constellation to route a communication signal through. The decision algorithm can be embodied in three ways: gateway based (18), individual subscriber unit based (22) and satellite based (12, 14). The MEO constellation (12) and LEO (14) constellation may be cross-linked, allowing for switching of service between satellites, as needed, during a communication session.
摘要翻译： 一种通过使用MEO卫星星座（12）和LEO卫星星座（14）与选择适当的星座图来路由通信信号的决策算法相结合来提高卫星通信质量的方法。 决策算法可以以三种方式实现：基于网关（18），基于单个用户单元（22）和基于卫星的（12,14）。 MEO星座（12）和LEO（14）星座可以是交叉的，允许在通信会话期间根据需要在卫星之间切换服务。
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公开(公告)号：US06642894B1
公开(公告)日：2003-11-04
申请号：US10070844
申请日：2002-03-11
IPC分类号： H01Q128
CPC分类号： H01Q21/29 , H01Q1/28 , H01Q3/2605 , H04B7/18506
摘要： An airborne repeater antenna array (70) in which beams transmitted from multiple antenna elements (80) of the array to form terrestrial communications. cells are shaped according to predetermined system parameters. At least one of airplane telemetry data (58) indicating an airplane flight pattern location, adjacent cellular system beam footprint data, and call distribution load within a terrestrial cell are received, and a complex gain is dynamically computed for each of the multiple antenna elements based on such data to thereby output a plurality of beams that form desired geographic communications coverage cells (100, 102, 104, 108).
摘要翻译： 一种机载中继器天线阵列（70），其中从阵列的多个天线元件（80）发射的波束形成地面通信。 细胞根据预定的系统参数成形。 接收指示飞机飞行图案位置，相邻蜂窝系统波束覆盖数据和陆地小区内的呼叫分配负载的飞行遥测数据（58）中的至少一个，并且基于多个天线元件中的每一个动态地计算复数增益 从而输出形成所需地理通信覆盖单元（100,102,104,108）的多个波束。
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公开(公告)号：US06343210B1
公开(公告)日：2002-01-29
申请号：US09274023
申请日：1999-03-22
IPC分类号： H04B1700
CPC分类号： H04L1/0045 , H04B7/18534 , H04L1/0001 , H04L1/0059 , H04L1/02 , H04L25/20 , H04L2001/0097
摘要： A method and apparatus for soft decision propagation trades off system bandwidth in return for link margin. When signal quality on an uplink is low, a satellite (20) sends soft decision data, rather than hard decision data, to a gateway (40). When path diversity exists on the uplinks, and multiple satellites (20) receive the uplink, multiple versions of soft decision data are sent to the gateway (40). The gateway combines the soft decision data resulting from multiple uplink paths, thereby increasing the effective uplink signal to noise ratio.
摘要翻译： 用于软决策传播的方法和装置以系统带宽为交换余量。 当上行链路的信号质量低时，卫星（20）向网关（40）发送软判决数据而不是硬判决数据。 当在上行链路上存在路径分集时，并且多个卫星（20）接收上行链路时，多个版本的软判决数据被发送到网关（40）。 网关组合了多个上行链路路径产生的软决策数据，从而增加了有效的上行链路信噪比。
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4.发明授权System and technique for plane switchover in an aircraft based wireless communication system 失效基于飞机的无线通信系统中的平面切换系统和技术公开(公告)号：US06768906B2
公开(公告)日：2004-07-27
申请号：US09394548
申请日：1999-09-13
IPC分类号： H04Q700
CPC分类号： H04B7/18506 , H04B7/18504
摘要： An aircraft based communication system (10) defining a wireless service area (20) is disclosed. The communication system (10) includes a communication gateway (30) connected to a terrestrial based communication network. A first aircraft (12) is located in proximity to the wireless service area (20). The first aircraft (12) communicates with the gateway (30) and communicates with at least one subscriber (24) located within the wireless service area (20). The first aircraft (12) transmits a first control signal (16) within the wireless service area (20). A second aircraft (14) is located in proximity to the wireless service area (20). The second aircraft (14) being operable for communicating with the gateway (30) and being operable for communicating with the subscriber (24) located within the wireless service area (20). The second aircraft (14) flies in proximity to the first aircraft (12) for transferring communication sessions (56, 58) from the first aircraft (12) to the second aircraft (14) and maintaining a constant communication link between the subscriber (24) and the terrestrial based communication network.
摘要翻译： 公开了一种定义无线服务区（20）的基于飞机的通信系统（10）。 通信系统（10）包括连接到地面通信网络的通信网关（30）。 第一飞机（12）位于无线服务区（20）附近。 第一飞机（12）与网关（30）通信，并与位于无线服务区域（20）内的至少一个用户（24）进行通信。 第一飞机（12）在无线服务区域（20）内发送第一控制信号（16）。 第二飞机（14）位于无线服务区（20）附近。 第二飞机（14）可操作用于与网关（30）通信并且可操作用于与位于无线服务区域（20）内的用户（24）进行通信。 第二个飞机（14）飞行在第一飞机（12）附近，用于将通信会话（56,58）从第一飞机（12）传送到第二飞行器（14），并维持订户（24）之间的恒定的通信链路 ）和地面通信网络。
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5.发明授权Apparatus and methods for controlling short code timing offsets in a CDMA system 失效用于控制CDMA系统中短码定时偏移的装置和方法公开(公告)号：US06813257B1
公开(公告)日：2004-11-02
申请号：US09605663
申请日：2000-06-26
IPC分类号： H04B7216
CPC分类号： H04B1/708 , H04B7/18506 , H04B2201/70701
摘要： A CDMA cellular communications network (400, FIG. 4) includes one or more aircraft (410), which relay pilot channel and control channel signals between base transceiver stations (BTS's 406, 413) and subscriber units (401). Over the control channel, the BTS transmits a handoff candidate list to the subscriber units. The handoff candidate list identifies candidate BTS's to which the subscriber unit, theoretically, could hand off. In addition, the list indicates at which offsets the subscriber units should search for short codes transmitted by the candidate BTS's over the pilot channel. Based on the path length between the BTS, aircraft, and subscriber unit, the candidate BTS's actually generate their short codes at an offset that is equal to or earlier than the offset reported to the subscriber unit by some delta. In addition, the BTS's can impose a variable delay on the generated short code bits to compensate for variations in the path delay as the aircraft flies in its flight pattern.
摘要翻译： CDMA蜂窝通信网络（400，图4）包括一个或多个飞行器，410在基站收发台（BTS 406,413）和用户单元（401）之间中继导频信道和控制信道信号。 在控制信道上，BTS向用户单元发送切换候选列表。 切换候选列表识别用户单元在理论上可以切断的候选BTS。 此外，该列表指示用户单元将哪个偏移量搜索候选BTS通过导频信道发送的短码。 基于BTS，飞机和用户单元之间的路径长度，候选BTS实际上以等于或早于通过某个增量向用户单元报告的偏移量的偏移生成其短码。 此外，BTS可以对所生成的短码位施加可变延迟，以补偿飞行器在其飞行模式中飞行时路径延迟的变化。
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6.发明授权Apparatus and methods for controlling a cellular communications network having airborne transceivers 有权用于控制具有机载收发器的蜂窝通信网络的装置和方法公开(公告)号：US06507739B1
公开(公告)日：2003-01-14
申请号：US09605083
申请日：2000-06-26
IPC分类号： H04Q720
CPC分类号： H04B7/18504
摘要： A cellular communications network (200, FIG. 2) includes one or more aircraft (210), which provide communication channels to cellular communications units, and also communicate with one or more base transceiver stations (206) and a control center (214). The control center receives (502, 602) telemetry and flight parameter information from the aircraft, and calculates (510, 606) network parameters based on the information. The control center transmits (512, 608) messages to the cellular network, including the aircraft, based on the calculated network parameters, and the aircraft and cellular network controls (612) its operations according to information within these messages.
摘要翻译： 蜂窝通信网络（200，图2）包括向蜂窝通信单元提供通信信道并且还与一个或多个基站收发器站（206）和控制中心（214）通信的一个或多个飞行器（210）。 控制中心从飞机接收（502,602）遥测和飞行参数信息，并根据该信息计算（510,606）网络参数。 控制中心根据所计算的网络参数和飞机和蜂窝网络控制（612）根据这些消息内的信息将（512）608消息发送到包括飞行器在内的蜂窝网络。
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7.发明授权Method and apparatus for increased system capacity using antenna beamforming 有权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
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。
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8.发明授权公开(公告)号：US06856803B1
公开(公告)日：2005-02-15
申请号：US09605085
申请日：2000-06-26
CPC分类号： H04B7/18506 , H04W36/0061 , H04W64/006 , H04W84/06
摘要： A terrestrial cell site handoff list is dynamically maintained for an airborne cellular system. A beam pattern is maintained relative to an airborne cellular system repeater, but rotates relative to the geographic area of coverage. A location and heading of the airplane, locations of respective beams transmitted from the airplane based on airplane flight pattern data, and locations of respective cell sites within a vicinity of footprints of the respective beams transmitted from the airplane are determined. A list of viable handoff terrestrial cell site candidates is then calculated based on the beam pattern, the location and heading of the airplane, the locations of respective beams transmitted from the airplane based on airplane flight pattern data, and the locations of respective cell sites.
摘要翻译： 为空中蜂窝系统动态维护陆地小区站点切换列表。 相对于空中蜂窝系统中继器维持波束图案，但相对于覆盖的地理区域旋转。 确定飞机的位置和航向，基于飞机飞行模式数据从飞机发射的各个波束的位置以及从飞机发射的各个波束的覆盖区附近的相应小区位置的位置。 然后基于波束模式，飞机的位置和航向，基于飞机飞行模式数据从飞机发射的各个波束的位置以及各个蜂窝站点的位置来计算可行切换地面蜂窝站点候选者的列表。
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公开(公告)号：US06795699B1
公开(公告)日：2004-09-21
申请号：US09604634
申请日：2000-06-27
IPC分类号： H04M1100
CPC分类号： H04B7/18504
摘要： A method of locating a billing area associated with a cell phone call initiated in an airborne cellular communications system enables service providers to more accurately identify system user locations within the system's area of coverage. In operation, propagation delay and beam number location of an initiated call are identified to determine a current handset radial beam location. The propagation delay is then mapped to a stored closest corresponding radial geographic billing location, and the call is then associated with the closest corresponding radial geographic billing location. Additional system accuracy may be provided by determining azimuthal position within a beam footprint by determining a handoff location of a signal from a first beam to a second beam, and then mapping handoff information to a closest corresponding azimuthal geographic billing location. Both the closest corresponding radial and azimuthal geographic billing locations are then used to identify a current handset location. Such a system user location technique also enables an airborne system to comply with FCC E911 caller location requirements.
摘要翻译： 定位与机载蜂窝通信系统中发起的蜂窝电话呼叫相关联的计费区域的方法使得服务提供商能够更准确地识别系统的覆盖区域内的系统用户位置。 在操作中，识别发起呼叫的传播延迟和波束号位置以确定当前手持机的径向波束位置。 然后将传播延迟映射到存储的最接近的对应的径向地理计费位置，然后呼叫与最接近的对应的径向地理计费位置相关联。 可以通过确定从第一波束到第二波束的信号的切换位置，然后将切换信息映射到最接近的相应的方位角地理计费位置来确定波束覆盖区域内的方位位置来提供额外的系统精度。 然后使用最接近的对应的径向和方位地理计费位置来识别当前的手机位置。 这种系统用户定位技术还使机载系统能够符合FCC E911呼叫者位置要求。
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10.发明授权公开(公告)号：US06675013B1
公开(公告)日：2004-01-06
申请号：US09605144
申请日：2000-06-26
IPC分类号： H04Q720
CPC分类号： H04B7/18504
摘要： The present invention corrects for Doppler shift in both forward and reverse links in a cellular communications system including an airborne repeater. A reverse link pilot reference signal in a band similar to a communications signal band is received at a reverse link processor, and the Doppler shift in the reverse feeder link is corrected based on the reverse link pilot reference signal. The Doppler shift in the forward feeder link is also corrected based on the reverse link pilot reference signal prior to the forward feeder link being affected by the Doppler shift. The present invention also compensates for signal strength variations due to changing flight pattern positions of the repeater. Pre-compensation for forward feeder link path losses due to movement of the airplane is performed to cause communications signals transmitted to and from the cellular communications system repeater to have identical strength before the signals are transmitted to the system user cell phones within the area of coverage.
摘要翻译： 本发明在包括机载中继器的蜂窝通信系统中校正前向和反向链路中的多普勒频移。 在反向链路处理器处接收与通信信号频带相似的频带中的反向链路导频参考信号，并且基于反向链路导频参考信号来校正反向馈线链路中的多普勒频移。 在正向馈送链路受多普勒频移影响之前，还基于反向链路导频参考信号来校正正向馈送链路中的多普勒频移。 本发明还补偿由于中继器的飞行模式位置的改变引起的信号强度变化。 执行由于飞机移动引起的正向馈线链路路径损耗的预补偿，以使得在蜂窝通信系统中继器之间传输的通信信号在覆盖范围内的信号被发送到系统用户蜂窝电话之前具有相同的强度 。
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