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1.发明授权Method and apparatus for routing signals through a communication system having multiple destination nodes 失效用于通过具有多个目的地节点的通信系统路由信号的方法和装置
公开(公告)号：US5860058A
公开(公告)日：1999-01-12
申请号：US703425
申请日：1996-08-26
IPC分类号： H04B7/185
CPC分类号： H04B7/1856
摘要： A method and apparatus for routing signals through a system (10) which has multiple destination nodes (12, 14) assigns one or more unique carrier frequencies to each destination node (12, 14). When a signal is received (502) by a transceiver (12), the transceiver (12) evaluates (504) the carrier frequency of the signal, and determines (506) to which destination node (12, 14) that carrier frequency is assigned. The determination (506) is made using a table (200) which associates carrier frequencies to destination nodes (12, 14). The table (200) is created (304) and updated by a control facility (20) which distributes (306) the table (200) to the transceivers (12). Once the transceiver (12) determines (506) the destination node (12, 14), the transceiver (12) can route the signal toward that destination node (12, 14).
摘要翻译： 用于通过具有多个目的地节点（12,14）的系统（10）路由信号的方法和装置向每个目的地节点（12,14）分配一个或多个唯一载波频率。 当通过收发器（12）接收信号（502）时，收发器（12）评估（504）信号的载波频率，并确定（506）哪个目的地节点（12,14）分配了哪个载波频率 。 使用将载波频率与目的地节点（12,14）相关联的表（200）来进行确定（506）。 创建表（200）并由控制设备（20）更新，所述控制设施（20）将表（200）分配（306）到收发器（12）。 一旦收发器（12）确定（506）目的地节点（12,14），收发器（12）可以将信号路由到该目的地节点（12,14）。
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2.发明授权Interference mitigation system for protecting radio astronomy and method of using same 失效用于保护射电天文的干扰减轻系统及其使用方法
公开(公告)号：US5774787A
公开(公告)日：1998-06-30
申请号：US349575
申请日：1994-12-05
IPC分类号： H04B7/185
CPC分类号： H04B7/18513
摘要： A constellation (12) of satellites (14) distributed around the earth supports satellite-based communication system (10) involved in global communication of subscriber units (24). Subscriber units (24) may potentially transmit from any location on earth. Some locations such as radio astronomy sites (28) may be interfered with by nearby transmissions from subscriber units (24) or transmissions from satellites (14). Subscriber units (24) located within a potentially interfering proximity to radio astronomy sites are prohibited from transmitting potentially interfering signals by reception of a non-interfering control signal transmitted by a radio astronomy special equipment located at radio astronomy sites. A radio astronomy special equipment (44) repeatedly transmits to a subscriber unit (24) a control signal synchronous with a control signal of a servicing satellite. The radio astronomy special equipment control signal (46), (48), and (54) is compatible with a subscriber unit's communication receiver.
摘要翻译： 分布在地球周围的卫星（12）的星座（12）支持参与用户单元（24）的全局通信的基于卫星的通信系统（10）。 用户单元（24）可能可能从地球上的任何位置传输。 诸如射电天文站点（28）的某些位置可能受到来自用户单元（24）的附近传输或来自卫星（14）的传输的干扰。 位于与射电天文学位置潜在干扰接近的用户单元（24）被禁止通过接收由位于射电天文站点的射电天文专用设备发送的非干扰控制信号来发送潜在的干扰信号。 射电天文专用设备（44）重复向用户单元（24）发送与维修卫星的控制信号同步的控制信号。 射电天文专用设备控制信号（46），（48）和（54）与用户单元的通信接收机兼容。
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3.发明授权Method of combining and separating groups of multiple CDMA-encoded data signals and apparatus therefor 失效组合和分离多个CDMA编码数据信号组的方法及其装置
公开(公告)号：US6144654A
公开(公告)日：2000-11-07
申请号：US929122
申请日：1997-09-03
CPC分类号： H04B7/216 , H04B7/18532 , H04J13/102 , H04L7/00
摘要： A method and apparatus for combining and separating groups of signals starts by a transmitter (500) receiving a number of CDMA-encoded signals from data sources (510). The CDMA-encoded signals are sorted (502) based on their intended destinations. Those CDMA-encoded signals which are intended for a common destination are multiplexed (504) together into a group. The group is further CDMA encoded (506) using a group code and the encoded group is transmitted (508) to an intermediate transceiver (600) or a destination transceiver (700). The intermediate or destination transceiver decodes (604, 704) the group using the appropriate group code and routes the resulting group of signals accordingly.
摘要翻译： 用于组合和分离信号组的方法和装置由从数据源（510）接收多个CDMA编码信号的发射机（500）起始。 CDMA编码信号根据其预期目的地进行排序（502）。 用于公共目的地的那些CDMA编码信号被多路复用（504）在一起。 该组进一步使用组码进行CDMA编码（506），并且将编码组发送（508）到中间收发器（600）或目的收发器（700）。 中间或目的地收发器使用适当的组码解码（604,704）该组，并相应地路由所得到的信号组。
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4.发明授权System for transmitting and receiving polarized CDMA signals and method of operation thereof 失效用于发送和接收偏振CDMA信号的系统及其操作方法
公开(公告)号：US5898362A
公开(公告)日：1999-04-27
申请号：US865844
申请日：1997-06-02
摘要： A satellite communications system employs CDMA multiple access technology. Polarizations are associated with each spreading code to enhance separation between simultaneous users in the absence of perfectly orthogonal spreading codes. A satellite transmitter CDMA encodes(210) and carrier modulates(220) a user or block of users, and then assigns a polarization to the user of block of users. A CDMA reference signal also receives a polarization. A ground receiver (30,40) receives the polarized CDMA signals as transmitted by the satellite. The ground receiver ascertains the polarization of the reference signal and then computes the polarization of the desired polarized CDMA signal. The use of the reference signal negates the effects of the faraday rotation caused by the satellite signal(10,20) passing through the ionosphere.
摘要翻译： 卫星通信系统采用CDMA多址技术。 极化与每个扩展码相关联，以在没有完全正交扩展码的情况下增强同时用户之间的分离。 卫星发射机CDMA编码（210）并且载波调制（220）用户或用户块，然后向用户块的用户分配极化。 CDMA参考信号也接收极化。 地面接收机（30,40）接收由卫星传输的极化CDMA信号。 地面接收机确定参考信号的极化，然后计算所需偏振CDMA信号的极化。 参考信号的使用否定由穿过电离层的卫星信号（10,20）引起的法拉第旋转的影响。
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公开(公告)号：US6157681A
公开(公告)日：2000-12-05
申请号：US55395
申请日：1998-04-06
摘要： A transmitter system (18) which transmits a communication signal (14) through a phased-array antenna (10) uses a signal processor (26) and a multiplicity of direct modulators (30). Each direct modulator (30) drives a single element (12) of the antenna (10). Each direct modulator (30) receives a digital baseband phase point data signal (62) from a digital data stream (28). The digital data stream (28) also conveys digital beam formation data (60). Each direct modulator (30) digitally combines the baseband phase point data (62) with the beam formation data (60) to produce digital streams that modulate an RF carrier signal (34). The digital data stream (28) is generated by a phased-array signal processor (26) which processes user data bits (86) received from any number of input signals (22) and processes beam signals (24). In one embodiment, the signal processor (26) calculates phase point data (62) representative of all input signals (22).
摘要翻译： 通过相控阵天线（10）发送通信信号（14）的发射机系统（18）使用信号处理器（26）和多个直接调制器（30）。 每个直接调制器（30）驱动天线（10）的单个元件（12）。 每个直接调制器（30）从数字数据流（28）接收数字基带相位点数据信号（62）。 数字数据流（28）还传送数字波束形成数据（60）。 每个直接调制器（30）将基带相位点数据（62）与波束形成数据（60）进行数字组合，以产生调制RF载波信号（34）的数字流。 数字数据流（28）由处理从任意数量的输入信号（22）接收的用户数据位（86）并处理波束信号（24）的相控阵列信号处理器（26）产生。 在一个实施例中，信号处理器（26）计算表示所有输入信号（22）的相位点数据（62）。
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6.发明授权Method and apparatus for predicting impending service outages for ground-to-satellite terminal in a satellite communication system 失效用于预测卫星通信系统中地面到卫星终端即将发生的业务中断的方法和装置公开(公告)号：US06169881A
公开(公告)日：2001-01-02
申请号：US09072042
申请日：1998-05-04
IPC分类号： H04B7185
CPC分类号： H04B7/18519
摘要： A method (1300) and apparatus (300) combines a terminal blockage profile for a ground-to-satellite terminal with satellite location and motion data for one or more satellites (12) in a satellite communication system (10) to predict an impending service outage or impairment on a real-time or near real-time basis and reports such impending outages or impairments, and the expected duration thereof, to the terminal operator. The prediction of an impending outage or impairment also can include analysis of information concerning atmospheric conditions in the vicinity of the terminal location as well as other potential sources of a service outage or impairment.
摘要翻译： 一种方法（1300）和装置（300）将地对卫星终端的终端阻塞概况与卫星通信系统（10）中的一个或多个卫星（12）的卫星位置和运动数据组合以预测即将发生的服务 实时或近实时地停电或减值，并向终端运营商报告即将发生的中断或损坏以及预期的持续时间。 对即将发生的中断或损害的预测还可以包括对终端位置附近大气条件信息的分析以及服务中断或损害的其他潜在来源。
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公开(公告)号：US5724659A
公开(公告)日：1998-03-03
申请号：US673584
申请日：1996-07-01
CPC分类号： H04B7/18578
摘要： An enhanced services communication system (10) has a standard services region and an enhanced services region (58) in which communication may be carried out. Subscriber units (49, 109) located within the enhanced services region (58) request enhanced services that include dynamic allocation of bandwidth. A variable bandwidth repeater switch (42) evaluates the availability of requested bandwidth and allocates the bandwidth to the subscriber units (49, 109) when available. Transmission of data using enhanced services occurs using wideband wired interfaces (115), wideband wireless interfaces (70), or PSTN interfaces (103). Selection of dynamic allocation of bandwidth may rely upon economic, propagation duration, or link quality factors, among other considerations.
摘要翻译： 增强服务通信系统（10）具有标准服务区域和可以进行通信的增强服务区域（58）。 位于增强服务区域（58）内的用户单元（49,109）请求包括动态分配带宽的增强业务。 可变带宽中继器交换机（42）评估所请求带宽的可用性，并且当可用时将带宽分配给用户单元（49,109）。 使用增强业务的数据传输是使用宽带有线接口（115），宽带无线接口（70）或PSTN接口（103）发生的。 选择动态带宽分配可能依赖于经济，传播持续时间或链路质量因素等因素。
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