Resource allocation to terrestrial and satellite services
    2.
    发明授权
    Resource allocation to terrestrial and satellite services 有权
    资源分配给地面和卫星业务

    公开(公告)号:US08121605B2

    公开(公告)日:2012-02-21

    申请号:US10463524

    申请日:2003-06-18

    Abstract: There is provided a method for improving an allocation of resources, i.e., frequency and power, to terrestrial services and satellite services that use a same frequency band. The method includes determining a demand (DS) for a resource by users of a satellite system, determining a demand (DT) for the resource by users of a terrestrial system, and allocating the resource between the satellite system and the terrestrial system based on a ratio of DS to DT.

    Abstract translation: 提供了一种用于改善对使用相同频带的地面业务和卫星业务的资源分配(即频率和功率)的方法。 该方法包括由卫星系统的用户确定资源的需求(DS),由地面系统的用户确定资源的需求(DT),以及基于卫星系统和陆地系统之间的资源分配 DS与DT的比值。

    Simplex personal and asset tracker
    3.
    发明申请
    Simplex personal and asset tracker 有权
    Simplex个人和资产追踪器

    公开(公告)号:US20110177790A1

    公开(公告)日:2011-07-21

    申请号:US12657470

    申请日:2010-01-20

    CPC classification number: G08B21/0277 G08B21/0269

    Abstract: Disclosed are systems, apparatus and methods for tracking or locating an asset along with providing emergency and non-emergency messaging services. An asset tracker is disposed on an asset. The asset tracker has a motion sensor, a GPS receiver and a simplex satellite transmitter for communicating with a remote location (back office processing center). The asset tracker also has a short-range transceiver for communicating with a fob device carried by a user. If an authorized fob device is not in range of the asset tracker device and the asset tracker device moves, as determined by the motion sensor and/or GPS location data, GPS data are transmitted via a satellite to the back office. The office sends the information to a desired recipient (asset owner, law enforcement, etc.). The fob device communicates with the asset tracker device when it is in proximity thereof. The fob device is programmed to have depressible buttons that transmit emergency and non-emergency messages to the asset tracker device which communicates the GPS location and message via a satellite to the back office. The back office sends the information to a desired recipient. Messages processed at the processing center are sent as email messages to one or more designated email addresses, as a short message service (SMS) messages to one or more designated cell phones, or as messages to an asset recovery service or 911 emergency center.

    Abstract translation: 公开了用于跟踪或定位资产的系统,装置和方法以及提供紧急和非紧急消息传递服务。 资产追踪器处置资产。 资产跟踪器具有运动传感器,GPS接收器和用于与远程位置(后台处理中心)进行通信的单工卫星发射器。 资产跟踪器还具有用于与用户承载的支架设备进行通信的短距离收发器。 如果由运动传感器和/或GPS位置数据确定的授权的FOB设备不在资产跟踪器设备的范围内并且资产跟踪器设备移动,则GPS数据经由卫星发送到后台。 办公室将信息发送给所需的收件人(资产所有者,执法部门等)。 当物料跟踪装置在其附近时,货物装置与资产跟踪装置通信。 FOB设备被编程为具有可压下按钮,其将紧急和非紧急消息传送到资产跟踪器设备,其通过卫星将GPS位置和消息通信给后台。 后台将信息发送给所需的收件人。 在处理中心处理的消息作为电子邮件发送到一个或多个指定的电子邮件地址,作为到一个或多个指定的移动电话的短消息服务(SMS)消息,或作为到资产恢复服务或911紧急中心的消息。

    Method for handover between ATC and satellite component of an integrated MSS/ATC system
    4.
    发明申请
    Method for handover between ATC and satellite component of an integrated MSS/ATC system 有权
    集成MSS / ATC系统的ATC和卫星组件之间切换的方法

    公开(公告)号:US20070281609A1

    公开(公告)日:2007-12-06

    申请号:US11446992

    申请日:2006-06-05

    CPC classification number: H04B7/18513 H04B7/18563 H04B7/19

    Abstract: A communications system comprising a first transceiver and a second transceiver, which system employs a device that measures power over a frequency band from sources other than those monitoring downlink radiation received at a radio terminal from the satellite, and a controller that receives these power measurements to determine on which frequency channel within a band a transmitter is to transmit.

    Abstract translation: 一种包括第一收发器和第二收发器的通信系统,该系统采用测量来自除了在卫星的无线电终端处接收的下行辐射的那些以外的源的频带上的功率的设备,以及接收这些功率测量的控制器 确定发射机要传输的频带内的哪个频道。

    Satellite communication system providing multi-gateway diversity to a mobile user terminal
    5.
    发明授权
    Satellite communication system providing multi-gateway diversity to a mobile user terminal 失效
    向移动用户终端提供多网关分集的卫星通信系统

    公开(公告)号:US06661996B1

    公开(公告)日:2003-12-09

    申请号:US09114985

    申请日:1998-07-14

    CPC classification number: H04B7/1856

    Abstract: Disclosed herein is a method for operating a satellite communications system as well as a method for providing a larger effective gateway coverage area, and a system that operates in accordance with the methods. The methods include steps of (a) establishing a call connection between a terrestrial telecommunications network and a user terminal via a first gateway and at least one satellite; and (b) while the call connection is established, coupling the user terminal to the terrestrial telecommunications network via a second gateway and at least one further satellite. The step of coupling includes a step of conveying call speech or data information between the first gateway and the second gateway over an inter-gateway communications link. By so linking multiple gateways each gateway experiences an increase in its effective coverage area, as an on-going call can be continued even after a user terminal moves from a first gateway's coverage area into a second gateway's coverage area.

    Abstract translation: 本文公开了一种用于操作卫星通信系统的方法以及用于提供更大的有效网关覆盖区域的方法,以及根据该方法操作的系统。 所述方法包括以下步骤:(a)经由第一网关和至少一个卫星在陆地电信网络和用户终端之间建立呼叫连接; 和(b)当建立呼叫连接时,经由第二网关和至少一个其他卫星将用户终端耦合到地面电信网络。 耦合步骤包括通过网关间通信链路在第一网关和第二网关之间传送呼叫语音或数据信息的步骤。 通过连接多个网关,每个网关经历其有效覆盖区域的增加,因为即使在用户终端从第一网关的覆盖区域移动到第二网关的覆盖区域中之后,持续的呼叫也可以继续。

    Return link channel loading of multiple satellites with multiple spread spectrum user terminals
    6.
    发明授权
    Return link channel loading of multiple satellites with multiple spread spectrum user terminals 有权
    使用多个扩频用户终端返回多个卫星的链路信道加载

    公开(公告)号:US06628921B1

    公开(公告)日:2003-09-30

    申请号:US09687664

    申请日:2000-10-13

    CPC classification number: H04B7/1851

    Abstract: The satellite communication system comprises a plurality of satellites. The frequency bandwidth of the return link to each satellite is subdivided into a plurality of channels. The method includes steps of finding a total interference in each channel, calculating a predicted total interference from addition of a first user terminal to each channel, determining if the predicted total interference is a minimum, and allocating the first channel to the first user terminal. The predicted total interference is calculated for each channel of the plurality of channels in the return link to each of at least two satellites. The first channel is allocated to the first user terminal if the predicted total interference in the first channel is the minimum value.

    Abstract translation: 卫星通信系统包括多个卫星。 每个卫星的返回链路的频率带宽被细分为多个信道。 该方法包括以下步骤:在每个信道中发现总干扰,计算从第一用户终端添加到每个信道的预测总干扰,确定预测的总干扰是否是最小的,以及将第一信道分配给第一用户终端。 针对返回链路中的多个信道中的每个信道计算每个至少两个卫星中的每一个的预测总干扰。 如果第一信道中预测的总干扰是最小值,则第一信道被分配给第一用户终端。

    Satellite controlled power control for personal communication user
terminals

    公开(公告)号:US5956619A

    公开(公告)日:1999-09-21

    申请号:US764565

    申请日:1996-12-12

    CPC classification number: H04W52/40 H04B7/18543

    Abstract: A system and method for controlling the transmission power of a user terminal in a satellite communications system of a type that includes a ground segment, comprised of at least one user terminal and at least one terrestrial gateway, and a space segment, comprised of a plurality of satellites in a non-geosynchronous earth orbit. The method includes the steps of (a) transmitting an uplink signal from the user terminal simultaneously to at least two satellites of the space segment and (b) receiving the uplink signal with each of the at least two satellites. The method further includes the steps of (c) determining, in the space segment, a difference value representing a difference between a received signal strength indication and a desired received signal strength indication for each of the at least two satellites; (d) in response to the difference value, generating in the space segment at least one power control command for use by the user terminal; (e) transmitting the at least one generated power control command from the space segment to the user terminal; and (f) adjusting a transmitted power of the uplink signal in accordance with the at least one power control command.

    Methods and apparatus for providing user RF exposure monitoring and
control in a satellite communications system
    8.
    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 classification number: H04B7/18543 H04B7/216

    Abstract: 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.

    Abstract translation: 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。

    Multiple satellite repeater capacity loading with multiple spread
spectrum gateway antennas
    9.
    发明授权
    Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas 失效
    多个卫星中继器容量加载多个扩频网关天线

    公开(公告)号:US5592481A

    公开(公告)日:1997-01-07

    申请号:US465972

    申请日:1995-06-06

    CPC classification number: H04B7/18541 H04B7/18534 H04B7/18539

    Abstract: A communication system (10), and a method executed by same, for allocating communications traffic through a plurality of satellites (12) of a constellation of low earth orbit satellites. Each of the plurality of satellites is oriented, at any given time when in view of a ground station (18), at a particular elevation angle. The method comprises the steps of: (a) providing each of the plurality of satellites with a receiver for receiving communication links from the ground station and a transmitter for transmitting communication links to user terminals; (b) in response to a request for service, determining if a highest elevation angle satellite can be assigned a new communications link; (c) if yes, assigning a new communication link to the highest elevation angle satellite; (d) if no, determining if a second highest elevation angle satellite can be assigned a new communications link; and (e) if yes, assigning a new communication link to the second highest elevation angle satellite. A number of different criteria can be employed in determining if a satellite can be assigned a new communication link, including: determining if the associated satellite has already been assigned a predetermined maximum number of communication links; and determining if the associated satellite, or a particular beam, is transmitting at or near to a power level that corresponds to a maximum peak flux density at the surface of the earth. Each of the steps of assigning is preferably accomplished such that the communication link is simultaneously established through at least two of the satellites to provide for diversity reception at a user's terminal (13).

    Abstract translation: 一种通信系统(10)及其执行方法,用于通过低地球轨道卫星星座的多个卫星(12)分配通信业务。 在地面站(18)的任何给定时间,多个卫星中的每一个在特定仰角处被定向。 该方法包括以下步骤:(a)向多个卫星中的每一个提供接收机,用于从地面站接收通信链路;以及发射机,用于向用户终端发送通信链路; (b)响应于服务请求,确定是否可以为最高仰角卫星分配新的通信链路; (c)如果是,分配新的通信链路到最高仰角卫星; (d)如果否,则确定是否可以为第二高仰角卫星分配新的通信链路; 和(e)如果是,则向第二高仰角卫星分配新的通信链路。 可以在确定卫星是否可以被分配新的通信链路时使用多种不同的标准,包括:确定相关联的卫星是否已经被分配了预定的最大数量的通信链路; 以及确定相关联的卫星或特定波束是否在与地球表面处的最大峰值通量密度相对应的功率水平处或附近发射。 分配的每个步骤优选地实现为使得通过至少两个卫星同时建立通信链路,以在用户终端(13)处提供分集接收。

    Satellite Communication Device for Routing Terrestrial Signals Through a Satellite Network
    10.
    发明申请
    Satellite Communication Device for Routing Terrestrial Signals Through a Satellite Network 审中-公开
    卫星通信设备,用于通过卫星网络路由地面信号

    公开(公告)号:US20140071886A1

    公开(公告)日:2014-03-13

    申请号:US13983690

    申请日:2012-02-07

    CPC classification number: H04B7/18517 H04B7/18536 H04W92/10

    Abstract: A interface device and a method of allowing communication is provided to allow a wireless mobile communications device to interface with a satellite communication system. The interface includes a satellite modem (including antenna), a communications link to communicate with the wireless communications device (such as a Wifi link using VoIP) and an applications processor (with associated memory) to handle control and handshaking functions between the communications link and satellite modem and the related interfaced equipment (mobile communications device and satellite system) and to assist and reformat as needed transmission of data between the interfaced equipment.

    Abstract translation: 提供一种允许通信的接口设备和方法,以允许无线移动通信设备与卫星通信系统接口。 该接口包括卫星调制解调器(包括天线),用于与无线通信设备通信的通信链路(例如使用VoIP的Wifi链路)和应用处理器(具有相关联的存储器),以处理通信链路与通信链路之间的控制和握手功能 卫星调制解调器和相关接口设备(移动通信设备和卫星系统),并根据需要在接口设备之间传输数据进行协助和重新格式化。

Patent Agency Ranking