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1.发明授权
公开(公告)号：US5500648A
公开(公告)日：1996-03-19
申请号：US105730
申请日：1993-08-11
CPC分类号： G01S5/12 , G01S5/0027 , G01S5/06
摘要： A radio telecommunication system includes a number of satellites in low earth orbits. Any number of subscriber units communicates with the satellites. A single subscriber unit communicates with a single satellite using electromagnetic signals so that a measurement processor can obtain Doppler component, propagation duration, and real time measurements of the signals. A location processor converts these measurements into a geographic location with respect to the earth. A service processor determines which qualifications to apply to communication services offered by the system. These qualifications are based on the subscriber unit's location. A call processor carries out the qualifications when requests to setup calls involving the subscriber unit are received by the system and during calls involving the subscriber unit.
摘要翻译： 无线电通信系统包括在低地球轨道上的若干卫星。 任何数量的用户单元与卫星通信。 单个用户单元使用电磁信号与单个卫星进行通信，使得测量处理器可以获得信号的多普勒分量，传播持续时间和实时测量。 位置处理器将这些测量转换为相对于地球的地理位置。 服务处理器确定应用于系统提供的通信服务的哪些资格。 这些资格基于用户单位的位置。 当涉及用户单元的呼叫的请求被系统接收并且在涉及用户单元的呼叫期间，呼叫处理器执行资格。
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2.发明授权Radio telecommunications system and method with adaptive location determination convergence 失效无线电通信系统和方法具有自适应位置确定收敛
公开(公告)号：US5444450A
公开(公告)日：1995-08-22
申请号：US105219
申请日：1993-08-11
申请人： Keith A. Olds , Kristine P. Maine
发明人： Keith A. Olds , Kristine P. Maine
CPC分类号： H04W4/24 , G01S5/12 , H04M15/8033 , H04M2215/32 , H04M2215/7435
摘要： A radio telecommunications system includes a number of satellites in low earth orbits. Subscriber units communicate with the satellites. A single subscriber unit communicates with a single satellite using electromagnetic signals so that a measurement processor can obtain Doppler component, propagation duration, and real time measurements of the signals. A location processor converts these measurements into a geographic location with respect to the earth through an iterative process. The location processor determines the accuracy required for each location determination, and performs only the number of iterations needed to meet the accuracy requirements. A service processor determines which qualifications to apply to communication services offered by the system. These qualifications are based on the subscriber unit's location.
摘要翻译： 无线电通信系统包括一些低地球轨道的卫星。 用户单元与卫星通信。 单个用户单元使用电磁信号与单个卫星进行通信，使得测量处理器可以获得信号的多普勒分量，传播持续时间和实时测量。 位置处理器通过迭代过程将这些测量值转换为相对于地球的地理位置。 位置处理器确定每个位置确定所需的精度，并且仅执行满足精度要求所需的迭代次数。 服务处理器确定应用于系统提供的通信服务的哪些资格。 这些资格基于用户单位的位置。
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3.发明授权
公开(公告)号：US5515062A
公开(公告)日：1996-05-07
申请号：US105227
申请日：1993-08-11
CPC分类号： G01S5/0036 , G01S5/12 , H04B7/1855
摘要： A location system relies upon a non-coherent, FDM/TDM communication scheme to measure location parameters. A locator unit moves relative to the locatable unit. A series of messages are communicated between the locator unit and the locatable unit. Through feedback provided from the locator unit to the locatable unit, the locatable unit adjusts its reference frequency and time base so that signals it transmits arrive at the locator unit on a desired frequency and at a desired time slot. The locatable unit estimates Doppler and propagation duration and transmits the estimates to the locator unit. The locator unit measures offsets between desired frequencies and time slots and actual frequencies and time slots. The offsets are combined with the locatable unit's estimates of Doppler and propagation duration to form an integrated Doppler parameter and an integrated propagation duration parameter. The integrated Doppler and propagation duration are used to determine location.
摘要翻译： 位置系统依赖于非相干的FDM / TDM通信方案来测量位置参数。 定位器单元相对于可定位单元移动。 在定位器单元和可定位单元之间传送一系列消息。 通过从定位器单元提供给可定位单元的反馈，可定位单元调整其参考频率和时基，使得其发送的信号以期望的频率和期望的时隙到达定位器单元。 可定位单元估计多普勒和传播持续时间，并将估计发送到定位器单元。 定位器单元测量所需频率和时隙之间的偏移量以及实际频率和时隙。 偏移与可定位单元的多普勒和传播持续时间的估计组合以形成集成多普勒参数和积分传播持续时间参数。 综合多普勒和传播时间用于确定位置。
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4.发明授权
公开(公告)号：US5669062A
公开(公告)日：1997-09-16
申请号：US709927
申请日：1996-09-09
CPC分类号： H04W72/082 , H04B7/18539 , H04W84/06
摘要： Methods efficiently assign user channels in a LEO (low-earth orbit) telecommunication system. These methods adapt the channel reuses based on system load or demand. These methods achieve high capacity and minimize interference for the particular situation. Since these methods are adaptive, they adjust to maintain efficient operation as the load conditions change.
摘要翻译： 方法在LEO（低地球轨道）电信系统中有效地分配用户信道。 这些方法根据系统负载或需求调整通道重用。 这些方法可以实现高容量并将特定情况下的干扰降至最低。 由于这些方法是自适应的，因此随着负载条件的变化，它们可以进行调整以保持有效的运
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公开(公告)号：US07855997B2
公开(公告)日：2010-12-21
申请号：US11832202
申请日：2007-08-01
CPC分类号： H04W72/082 , H04W84/18
摘要： Method and apparatus for scheduling time division multiple access (TDMA) communications among a plurality of peer nodes arranged to form a wireless ad hoc mobile network. The peer nodes communicate with each other using directional antennas and a TDMA process. The method includes a scheduling process for scheduling at least one transmit time slot during which a first one of the plurality of peer nodes transmits wireless data to a second one of the plurality of peer nodes.
摘要翻译： 用于调度布置成形成无线自组织移动网络的多个对等节点之间的时分多址（TDMA）通信的方法和装置。 对等节点使用定向天线和TDMA过程彼此通信。 该方法包括用于调度至少一个传输时隙的调度过程，在该传输时隙期间，多个对等节点中的第一个发送时隙将无线数据发送到多个对等节点中的第二个对等节点。
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公开(公告)号：US06819286B2
公开(公告)日：2004-11-16
申请号：US10375993
申请日：2003-02-28
IPC分类号： G01S124
CPC分类号： G01S5/14 , G01S5/0226 , G01S5/0289
摘要： A method for location determination using Bluetooth techniques is applicable within buildings, underground or within other structures. A mobile unit (10) seeks the location of a cell from location master (20). Location master (20) and a number of location subsidiaries (21-24) determine ranging information with regard to the mobile unit (10) using Bluetooth techniques. The location master (20) then determines the mobile unit location using least squares estimation or other triangulation methods (50). In an alternate embodiment, ranging information is fine tuned for noise and error measurements between the location master and the location subsidiaries (51, 53) are used.
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公开(公告)号：US07149515B2
公开(公告)日：2006-12-12
申请号：US10688629
申请日：2003-10-17
CPC分类号： H04L65/1046 , H04L65/1069 , H04M1/2535 , H04W88/181
摘要： Transcoding needs and selection are performed by a central call control function (17, 35). Each transcoder (18, 23, 34, 36) registers with the appropriate call control (17, 35). The call control then determines whether a vocoder is required at all. If vocoding is required, call control (17, 35) selects the appropriate transcoder (18, 34) and inserts the appropriate transcoder into the bearer traffic stream (16).
摘要翻译： 转码需求和选择由中央呼叫控制功能（17,35）执行。 每个代码转换器（18,23,34,36）向适当的呼叫控制（17,35）注册。 呼叫控制然后确定是否需要声码器。 如果需要声码，则呼叫控制（17,35）选择适当的代码转换器（18,34），并将适当的代码转换器插入承载业务流（16）。
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公开(公告)号：US06400927B1
公开(公告)日：2002-06-04
申请号：US09385555
申请日：1999-08-30
IPC分类号： H04B7185
CPC分类号： H04B7/18513
摘要： A satellite ground station (500) mitigates potential interference from a fixed service installation (130, 150) by scanning a field of view and logging potentially interfering transmitters in a data structure (400). The data structure includes fields for azimuth, elevation, and frequency channel, and when complete, forms a map of potentially interfering transmitters within the field of view of the ground station. When a satellite traverses the field of view such that the ground station may interfere with, or be interfered with by, a known potentially interfering transmitter as identified in the map, the ground station takes mitigation measures such as changing frequency channels or handing-off to a different satellite.
摘要翻译： 卫星地面站（500）通过扫描视野并在数据结构（400）中记录潜在的干扰发射机来减轻固定业务安装（130,150）的潜在干扰。 数据结构包括方位，高程和频道的场，当完成时，形成地面站视场内的潜在干扰发射机的地图。 当卫星穿过视场时，地面站可能会干扰或受到地图中确定的已知潜在干扰发射机的干扰，地面站采取缓解措施，例如改变频道或切换到 一颗不同的卫星。
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9.发明授权Message unit for use with multi-beam satellite-based messaging system and method of operation thereof 失效用于多波束卫星消息系统的消息单元及其操作方法
公开(公告)号：US5596315A
公开(公告)日：1997-01-21
申请号：US317084
申请日：1994-10-03
CPC分类号： G08B3/1091 , G08B5/229 , H04B7/18567 , H04B7/18578 , H04W84/022
摘要： A satellite-based, world-wide cellular messaging system transmits paging messages to pagers via multiple beams. A message unit monitors multiple beams, recording the visit information for each beam, and ultimately determines the optimum beam to monitor for messages. The message unit, which conserves battery resources by entering into a sleep mode, synchronizes quickly to its message block when it awakes.
摘要翻译： 基于卫星的全球蜂窝消息系统通过多个波束发送寻呼消息到寻呼机。 消息单元监视多个波束，记录每个波束的访问信息，并且最终确定用于监视消息的最佳波束。 通过进入休眠模式节省电池资源的消息单元在其唤醒时与其消息块快速同步。
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公开(公告)号：US4667197A
公开(公告)日：1987-05-19
申请号：US812483
申请日：1985-12-23
申请人： Keith A. Olds , Richard L. Ward
发明人： Keith A. Olds , Richard L. Ward
IPC分类号： G01S13/74
CPC分类号： G01S13/74
摘要： In a radar enhancing transponder, apparatus for determining the percent of modulation on a received signal and apparatus for determining the percent of modulation on a signal transmitted by the transponder, with means for comparing the percentages to develope an error signal which is used to control the modulation in the transponder so that the percent of modulation on the return signal remains the same as that on the received signal.
摘要翻译： 在雷达增强转发器中，用于确定接收信号上的调制百分比的装置和用于确定由应答器发送的信号的调制百分比的装置，以及用于比较百分比以开发出用于控制的误差信号的装置 在应答器中进行调制，使得对返回信号的调制百分比与接收到的信号保持相同。
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