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1.发明授权Methods and apparatus for providing user RF exposure monitoring and control in a satellite communications system 失效用于在卫星通信系统中提供用户RF暴露监测和控制的方法和装置
公开(公告)号：US5802445A
公开(公告)日：1998-09-01
申请号：US502151
申请日：1995-07-13
CPC分类号： H04B7/18543 , H04B7/216
摘要： A method and system wherein a system gateway (18) determines, from closed loop power control information, a power density at an antenna (13a) of a user terminal 13. The gateway also maintains a record of a duration of time that the power density exceeds a specified threshold. The gateway determines if an averaged transmitted power density associated with the antenna of the user terminal will equal or exceed at least one of a predetermined threshold level, within a specified period of time, or an absolute threshold level. If the gateway determines that a threshold will probably be exceeded if the call connection is maintained, the gateway terminates the connection prior to a time that the user terminal averaged transmitted power density level equals or exceeds the predetermined or absolute threshold level. A tone or a visual indicator may be employed to warn the user that a current connection or call will be terminated. Provisions are made for allowing predetermined types of calls (e.g., emergency calls) to be made during a cutoff period wherein the user terminal is prohibited from placing further calls. It within the scope of the invention to perform the power density monitoring function also within the user terminal. In this case information may be transferred to the GW over a return link, and majority voting or some other technique can be employed by the GW before terminating the connection. In this case the power density determination made at the GW has priority over that made in the user terminal to prevent a user terminal from intentionally or inadvertently defeating the power density monitoring function.
摘要翻译： 一种方法和系统，其中系统网关（18）从闭环功率控制信息确定用户终端13的天线（13a）处的功率密度。网关还保持持续时间的记录，功率密度 超过规定的阈值。 网关确定与用户终端的天线相关联的平均发射功率密度是否等于或超过预定阈值水平，在指定时间段内或绝对阈值水平中的至少一个。 如果网关确定如果保持呼叫连接可能会超过阈值，则网关在用户终端平均发送功率密度级别等于或超过预定阈值或绝对阈值水平的时间之前终止连接。 可以使用音调或视觉指示器来警告用户当前的连接或呼叫将被终止。 在允许用户终端被禁止进一步呼叫的截止期间进行允许预定类型的呼叫（例如，紧急呼叫）的规定。 在本发明的范围内也可以在用户终端内执行功率密度监测功能。 在这种情况下，信息可以通过返回链路传送到GW，并且在终止连接之前GW可以采用多数表决或其他一些技术。 在这种情况下，在GW处的功率密度确定优先于在用户终端中进行的功率密度确定，以防止用户终端有意或无意地击败功率密度监视功能。
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2.发明授权Method and apparatus for accounting for user terminal session-based connection to a satellite communication system 失效用于记录与卫星通信系统的基于用户终端会话的连接的方法和装置公开(公告)号：US06775519B1
公开(公告)日：2004-08-10
申请号：US09483015
申请日：2000-01-13
IPC分类号： H04B7185
CPC分类号： H04B7/18539 , Y10S707/99931
摘要： A method is disclosed for operating a satellite communications system for coupling a user terminal to a data communications network. The method has steps of (a) establishing a connectionless packet data transmission link between the user terminal and a gateway that is coupled to the user terminal through at least one satellite via an inbound link and an outbound link, the gateway being further coupled to the data communications network and being associated with a gateway service provider; (b) deriving billing-related information by counting a number of units of data that comprise data packets that are transmitted over at least one of the inbound link and the outbound link; (c) aggregating the billing-related information with billing-related information for other user terminals; (d) transferring the aggregated billing-related information to a satellite communication system operator site; and (e) at the satellite communication system operator site, determining an amount to bill the gateway service provider based at least in part on the aggregated billing-related information. The step of establishing the connectionless packet data transmission link may include a step of varying a bandwidth of the link to accommodate different data rate requirements.
摘要翻译： 公开了一种用于操作用于将用户终端耦合到数据通信网络的卫星通信系统的方法。 该方法具有以下步骤：（a）在用户终端和通过至少一个卫星经由入站链路和出站链路耦合到用户终端的网关之间建立无连接分组数据传输链路，网关进一步耦合到 数据通信网络并与网关服务提供商相关联; （b）通过计数包括通过入站链路和出站链路中的至少一个发送的数据分组的数据单元的数量的数量来导出计费相关信息; （c）将计费相关信息与其他用户终端的计费相关信息进行聚合; （d）将汇总的计费相关信息传送到卫星通信系统操作员站点; 以及（e）在所述卫星通信系统运营商站点处，至少部分地基于所述汇总的计费相关信息来确定对所述网关服务提供商收费的金额。 建立无连接分组数据传输链路的步骤可以包括改变链路带宽以适应不同数据速率要求的步骤。
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3.发明授权Satellite communications system having gateway-based user RF exposure monitoring and control 失效卫星通信系统具有基于网关的用户射频暴露监测和控制
公开(公告)号：US6134423A
公开(公告)日：2000-10-17
申请号：US996932
申请日：1997-12-23
CPC分类号： H04B7/18543 , H04B7/216
摘要： A method and system wherein a system gateway (18) determines, from closed loop power control information, a power density at an antenna (13a) of a user terminal 13. The gateway also maintains a record of a duration of time that the power density exceeds a specified threshold. The gateway determines if an averaged transmitted power density associated with the antenna of the user terminal will equal or exceed at least one of a predetermined threshold level, within a specified period of time, or an absolute threshold level. If the gateway determines that a threshold will probably be exceeded if the call connection is maintained, the gateway terminates the connection prior to a time that the user terminal averaged transmitted power density level equals or exceeds the predetermined or absolute threshold level. A tone or a visual indicator may be employed to warn the user that a current connection or call will be terminated. Provisions are made for allowing predetermined types of calls (e.g., emergency calls) to be made during a cutoff period wherein the user terminal is prohibited from placing further calls. It within the scope of the invention to perform the power density monitoring function also within the user terminal. In this case information may be transferred to the GW over a return link, and majority voting or some other technique can be employed by the GW before terminating the connection. In this case the power density determination made at the GW has priority over that made in the user terminal to prevent a user terminal from intentionally or inadvertently defeating the power density monitoring function.
摘要翻译： 一种方法和系统，其中系统网关（18）从闭环功率控制信息确定用户终端13的天线（13a）处的功率密度。网关还保持持续时间的记录，功率密度 超过规定的阈值。 网关确定与用户终端的天线相关联的平均发射功率密度是否等于或超过预定阈值水平，在指定时间段内或绝对阈值水平中的至少一个。 如果网关确定如果保持呼叫连接可能会超过阈值，则网关在用户终端平均发送功率密度级别等于或超过预定阈值或绝对阈值水平的时间之前终止连接。 可以使用音调或视觉指示器来警告用户当前的连接或呼叫将被终止。 在允许用户终端被禁止进一步呼叫的截止期间进行允许预定类型的呼叫（例如，紧急呼叫）的规定。 在本发明的范围内也可以在用户终端内执行功率密度监测功能。 在这种情况下，信息可以通过返回链路传送到GW，并且在终止连接之前GW可以采用多数表决或其他一些技术。 在这种情况下，在GW处的功率密度确定优先于在用户终端中进行的功率密度确定，以防止用户终端有意或无意地击败功率密度监视功能。
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4.发明授权Method for accounting for user terminal connection to a satellite communications system 失效用于与用户终端连接到卫星通信系统的方法
公开(公告)号：US06023606A
公开(公告)日：2000-02-08
申请号：US819048
申请日：1997-03-17
CPC分类号： H04B7/18539
摘要： A method and system for accurately accounting for an amount of satellite communications system resources that are allotted to and utilized by a user terminal on a per call or connection basis. The method accumulates data at periodic intervals during a connection, the data indicating what portion of the overall system resources are utilized on both a forward link (gateway to satellite(s) to user terminal) and on a reverse link (user terminal to satellite(s) to gateway). The usage data can include power levels, data rates, user terminal location, and user terminal type. A Gateway (18) that is assigned to handling the call for the user terminal (13) accumulates the data and subsequently transfers the data over a terrestrial data network (39) to a Ground Operations Control Center (38). The center uses the data to determine an amount to be billed to a service provider associated with a service area that includes the gateway. The center may also uses this data to derive statistical information describing the communications traffic handled by the gateway, and to derive predicted resource allocation and resource scheduling information for the gateway.
摘要翻译： 一种用于准确地计算在每个呼叫或连接基础上分配给用户终端并由用户终端利用的卫星通信系统资源量的方法和系统。 该方法在连接期间以周期性间隔累积数据，指示在前向链路（到卫星到用户终端的网关）和反向链路（用户终端到卫星（用户终端 s）到网关）。 使用数据可以包括功率电平，数据速率，用户终端位置和用户终端类型。 被分配用于处理用户终端（13）的呼叫的网关（18）累积数据，并随后通过地面数据网络（39）将数据传送到地面操作控制中心（38）。 中心使用数据来确定与包括网关的服务区域相关联的服务提供商计费的金额。 中心还可以使用该数据来导出描述由网关处理的通信业务的统计信息，并导出网关的预测资源分配和资源调度信息。
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5.发明授权Method and apparatus providing suppression of system access by use of confidence polygons, volumes and surfaces in a mobile satellite system 有权通过使用移动卫星系统中的置信多边形，体积和表面来提供对系统访问的抑制的方法和装置公开(公告)号：US07995989B2
公开(公告)日：2011-08-09
申请号：US09751765
申请日：2000-12-29
IPC分类号： H04W36/00
CPC分类号： H04W48/04 , H04B7/18513 , H04W84/06 , H04W88/16
摘要： Disclosed are methods and apparatus to control the actions of a user terminal (UT) located at a remote location, possibly far from a gateway (GW), which has an interface to the Public Switched Telephone Network (PSTN) and/or to the Internet. The methods and apparatus provide for operation of a mobile satellite communication system having at least one gateway (GW), at least one user terminal (UT), and a constellation of satellites. The methods and apparatus allow access to the communication satellites by specifying an exclusion zone having a confidence limit (CL) associated therewith. The methods and apparatus selectively provide service to a UT depending on a determined location of the UT relative to the exclusion zone and on an estimated error (E) of the determined UT location, wherein location of the UT is determined by the UT, and transmitted to the GW, or location of the UT is determined by the GW.
摘要翻译： 公开了用于控制位于远离网关（GW）的远程位置的用户终端（UT）的动作的方法和装置，该网关（GW）具有与公共交换电话网（PSTN）和/或因特网 。 所述方法和装置提供具有至少一个网关（GW），至少一个用户终端（UT）和卫星星座的移动卫星通信系统的操作。 所述方法和装置允许通过指定具有与其相关联的置信限（CL）的排除区来访问通信卫星。 所述方法和装置根据所确定的UT相对于所述排除区的位置以及所确定的UT位置的估计误差（E），选择性地向UT提供服务，其中UT的位置由UT确定并被发送 到GW，或UT的位置由GW确定。
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6.发明授权Method for accounting for user terminal connection to a satellite communications system 失效用于与用户终端连接到卫星通信系统的方法
公开(公告)号：US5664006A
公开(公告)日：1997-09-02
申请号：US474443
申请日：1995-06-07
CPC分类号： H04B7/18539
摘要： A method and system for accurately accounting for an amount of satellite communications system resources that are allotted to and utilized by a user terminal on a per call or connection basis. The method accumulates data at periodic intervals during a connection, the data indicating what portion of the overall system resources are utilized on both a forward link (gateway to satellite(s) to user terminal) and on a reverse link (user terminal to satellite(s) to gateway). The usage data can include power levels, data rates, user terminal location, and user terminal type. A Gateway (18) that is assigned to handling the call for the user terminal (13) accumulates the data and subsequently transfers the data over a terrestrial data network (39) to a Ground Operations Control Center (38). The center uses the data to determine an amount to be billed to a service provider associated with a service area that includes the gateway. The center may also uses this data to derive statistical information describing the communications traffic handled by the gateway, and to derive predicted resource allocation and resource scheduling information for the gateway.
摘要翻译： 一种用于准确地计算在每个呼叫或连接基础上分配给用户终端并由用户终端利用的卫星通信系统资源量的方法和系统。 该方法在连接期间以周期性间隔累积数据，指示在前向链路（到卫星到用户终端的网关）和反向链路（用户终端到卫星（用户终端 s）到网关）。 使用数据可以包括功率电平，数据速率，用户终端位置和用户终端类型。 被分配用于处理用户终端（13）的呼叫的网关（18）累积数据，并随后通过地面数据网络（39）将数据传送到地面操作控制中心（38）。 中心使用数据来确定与包括网关的服务区域相关联的服务提供商计费的金额。 中心还可以使用该数据来导出描述由网关处理的通信业务的统计信息，并导出网关的预测资源分配和资源调度信息。
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7.发明授权公开(公告)号：US06233463B1
公开(公告)日：2001-05-15
申请号：US09021036
申请日：1998-02-09
IPC分类号： H04Q700
CPC分类号： H04B7/18563
摘要： A communications system includes a satellite communications component having at least one satellite and at least one terrestrial gateway, and also a wireless terrestrial communications component having at least one-repeater and at least one mobile switching center. The at least one gateway and the at least one mobile switching center are coupled together by a first mobile applications part (MAP) network, such as an IS-41 or GSM MAP network. The at least one gateway and the at least one mobile switching center are further coupled to a terrestrial communications network (PSTN). The system further includes at least one dual mode or higher user terminal having a first transceiver for bidirectionally communicating with the gateway through the satellite, a second transceiver for bidirectionally communicating with the mobile switching center through the repeater, and a controller, responsive to one of a user selected or a gateway selected protocol, for selectively enabling either the first or the second transceiver for conveying a user communication to the terrestrial communications network.
摘要翻译： 通信系统包括具有至少一个卫星和至少一个地面网关的卫星通信组件，以及具有至少一个中继器和至少一个移动交换中心的无线地面通信组件。 所述至少一个网关和所述至少一个移动交换中心由诸如IS-41或GSM MAP网络的第一移动应用部分（MAP）网络耦合在一起。 所述至少一个网关和所述至少一个移动交换中心进一步耦合到地面通信网络（PSTN）。 该系统还包括至少一个双模式或更高用户终端，其具有用于通过卫星与网关双向通信的第一收发器，用于通过中继器与移动交换中心双向通信的第二收发器，以及响应于 用户选择的协议或网关选择的协议，用于选择性地启用第一或第二收发信机将用户通信传送到地面通信网络。
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8.发明授权
公开(公告)号：US5619525A
公开(公告)日：1997-04-08
申请号：US467209
申请日：1995-06-06
IPC分类号： H04B7/26 , H04B1/38 , H04B7/005 , H04B7/15 , H04B7/185 , H04B7/195 , H04B7/216 , H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04B7/18543
摘要： A satellite communication system (10) includes at least one satellite communication signal repeater (12); at least one ground station (18) for transmitting a feeder link comprised of a plurality of communication signals to the at least one satellite communication signal repeater; and a plurality of user terminals (13) each receiving one of the communication signals over a user link from the at least one satellite communication signal repeater. The satellite communication system further includes a closed loop power control system (80) having a plurality of inner loops (84), individual ones of which operate to compensate one of the user links for communication signal impairments occurring at least between the user terminal and the at least one satellite communication repeater, and an outer loop (82) which operates to compensate all of the user links for feeder link impairments occurring between the at least one ground station and the at least one satellite communication signal repeater.
摘要翻译： 卫星通信系统（10）包括至少一个卫星通信信号中继器（12）; 至少一个地面站（18），用于将包括多个通信信号的馈线链路发射到所述至少一个卫星通信信号中继器; 以及多个用户终端（13），每个用户终端（13）通过来自所述至少一个卫星通信信号中继器的用户链路接收所述通信信号之一。 卫星通信系统还包括具有多个内环（84）的闭环功率控制系统（80），其中各个操作用于补偿至少在用户终端和用户终端之间发生的通信信号损害的用户链路之一 至少一个卫星通信中继器和外部环路（82），其操作以补偿所述至少一个地面站和所述至少一个卫星通信信号中继器之间发生的馈线链路损伤的所有用户链路。
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9.发明授权
公开(公告)号：US6097752A
公开(公告)日：2000-08-01
申请号：US832644
申请日：1997-04-04
CPC分类号： H04B7/18543
摘要： A satellite communication system (10) includes at least one satellite communication signal repeater (12); at least one ground station (18) for transmitting a feeder link comprised of a plurality of communication signals to the at least one satellite communication signal repeater; and a plurality of user terminals (13) each receiving one of the communication signals over a user link from the at least one satellite communication signal repeater. The satellite communication system further includes a closed loop power control system (80) having a plurality of inner loops (84), individual ones of which operate to compensate one of the user links for communication signal impairments occurring at least between the user terminal and the at least one satellite communication repeater, and an outer loop (82) which operates to compensate all of the user links for feeder link impairments occurring between the at least one ground station and the at least one satellite communication signal repeater.
摘要翻译： 卫星通信系统（10）包括至少一个卫星通信信号中继器（12）; 至少一个地面站（18），用于将包括多个通信信号的馈线链路发射到所述至少一个卫星通信信号中继器; 以及多个用户终端（13），每个用户终端（13）通过来自所述至少一个卫星通信信号中继器的用户链路接收所述通信信号之一。 卫星通信系统还包括具有多个内环（84）的闭环功率控制系统（80），其中各个操作用于补偿至少在用户终端和用户终端之间发生的通信信号损害的用户链路之一 至少一个卫星通信中继器和外部环路（82），其操作以补偿所述至少一个地面站和所述至少一个卫星通信信号中继器之间发生的馈线链路损伤的所有用户链路。
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10.发明授权公开(公告)号：US06240124B1
公开(公告)日：2001-05-29
申请号：US09432301
申请日：1999-11-02
IPC分类号： A61F206
CPC分类号： H04B7/18543 , H04B7/18534 , Y02D70/1222 , Y02D70/164 , Y02D70/446
摘要： A satellite communication system (10) includes at least one satellite communication signal repeater (12); at least one ground station (18) for transmitting a feeder link comprised of a plurality of communication signals to the at least one satellite communication signal repeater; and a plurality of user terminals (13) each receiving one of the communication signals over a user link from the at least one satellite communication signal repeater. A method includes steps of measuring a quality of at least one reference signal received by the user terminal, via the satellite; transmitting the measured quality of the reference signal received by the user terminal to the ground station; comparing the measured quality with a predetermined reference; and adjusting a transmit power of the ground station in response to a difference between the predetermined reference and measured quality. The transmit power of the ground station is adjusted so that a flux density of a downlink beam is substantially constant at the user terminal independent of the location of the user terminal in the beam.
摘要翻译： 卫星通信系统（10）包括至少一个卫星通信信号中继器（12）; 至少一个地面站（18），用于将包括多个通信信号的馈线链路发射到所述至少一个卫星通信信号中继器; 以及多个用户终端（13），每个用户终端（13）通过来自所述至少一个卫星通信信号中继器的用户链路接收所述通信信号之一。 一种方法包括以下步骤：经由卫星测量由用户终端接收的至少一个参考信号的质量; 将由用户终端接收的参考信号的测量质量发送到地面站; 将测量质量与预定参考值进行比较; 以及响应于所述预定参考和测量质量之间的差异来调整所述地面站的发射功率。 调整地面站的发射功率，使得下行链路波束的磁通密度在用户终端上基本恒定，与用户终端在波束中的位置无关。
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