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81 条记录 (耗时 0.024 秒)

    Automatically Determining Locations of Signal Sources in Areas with Limited Satellite Coverage
    1.
    发明公开
    Automatically Determining Locations of Signal Sources in Areas with Limited Satellite Coverage 审中-公开

    公开(公告)号：US20230337179A1

    公开(公告)日：2023-10-19

    申请号：US18212163

    申请日：2023-06-20

    申请人： GOOGLE LLC

    发明人： Gil Disatnik ,  Sagi Hed

    IPC分类号： H04W64/00 ,  G01S5/02 ,  G01S5/14 ,  H04B7/185

    CPC分类号： H04W64/006 ,  G01S5/0242 ,  G01S5/02521 ,  G01S5/0252 ,  G01S5/14 ,  H04B7/18515 ,  H04B7/18554 ,  H04W64/003 ,  H04W84/12

    摘要： To automatically determine geographic positions of signal sources statically disposed along a path in a geographic area with limited satellite coverage, a system generates an initial estimate of the geographic positions of the signal sources. To this end, the system receives signal data collected by a receiver moving along the path, the signal data being indicative of changes, over a period of time, in strength of respective signals emitted by the signal sources and detected by the receiver and, and generates an initial estimate of the geographic positions of the signal sources using the signal data and an average speed at which the receiver moves along the path. The system then revises the initial estimate of the geographic positions of the plurality of signal sources by determining, for a signal source associated with a segment of the path, a segment-specific average speed of the receiver.

    Multiple Return Link
    6.
    发明申请
    Multiple Return Link 有权
    多重返回链接

    公开(公告)号：US20130229978A1

    公开(公告)日：2013-09-05

    申请号：US13867401

    申请日：2013-04-22

    申请人： SKYBITZ, INC.

    发明人： Rich Battista ,  John W. Brosius ,  Uday Shankar

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18513 ,  H04B7/18539 ,  H04B7/18543 ,  H04B7/18545 ,  H04B7/18554

    摘要： A system and method for improving efficiency of satellite communications is described. In one embodiment, multiple return links are associated with a single forward link to reduce communications costs.

    摘要翻译： 描述了一种用于提高卫星通信效率的系统和方法。 在一个实施例中，多个返回链路与单个前向链路相关联，以减少通信成本。

    Method And System For Femtocell Positioning Using Low Earth Orbit Satellite Signals
    7.
    发明申请
    Method And System For Femtocell Positioning Using Low Earth Orbit Satellite Signals 有权
    使用低地球轨道卫星信号进行毫微微小区定位的方法和系统

    公开(公告)号：US20130150027A1

    公开(公告)日：2013-06-13

    申请号：US13587193

    申请日：2012-08-16

    申请人： Maxime Leclercq ,  Ioannis Spyropoulos ,  Nishant Kumar

    发明人： Maxime Leclercq ,  Ioannis Spyropoulos ,  Nishant Kumar

    IPC分类号： H04W64/00

    CPC分类号： H04B7/18554 ,  G01S19/13 ,  G01S19/425 ,  H04W4/021 ,  H04W64/003 ,  H04W84/045

    摘要： Methods and systems for femtocell positioning using low Earth orbit (LEO) satellite signals may comprise receiving an initial position of a wireless communication device (WCD) as entered by as user, service provider, or manufacturer, wherein the WCD comprises a LEO satellite signal receiver path (Rx). The WCD may be operable to provide wireless communication services to other WCDs. LEO signals may be received for determining a position of the WCD, which may be compared to a threshold radius defined by the initial position. The communication services may be enabled when the measured position is within the threshold radius. The WCD may comprise a femtocell device, a WiFi access point, or may provide cellular telephone service to the other WCDs. The position of the WCD may be measured upon powering up of the WCD, on a periodic basis, and/or when one or more motion sensors in the WCD detect motion.

    摘要翻译： 使用低地球轨道（LEO）卫星信号的毫微微小区定位的方法和系统可以包括接收由用户，服务提供商或制造商输入的无线通信设备（WCD）的初始位置，其中WCD包括LEO卫星信号接收机 路径（Rx）。 WCD可以用于向其他WCD提供无线通信服务。 可以接收LEO信号以确定WCD的位置，其可以与由初始位置定义的阈值半径进行比较。 当测量位置在阈值半径内时，可以启用通信服务。 WCD可以包括毫微微蜂窝设备，WiFi接入点，或者可以向其他WCD提供蜂窝电话服务。 WCD的位置可以在WCD的定时基础上和/或当WCD中的一个或多个运动传感器检测运动时测量。

    GPS assistance messages in cellular communications networks and methods therefor
    9.
    发明授权
    GPS assistance messages in cellular communications networks and methods therefor 有权
    蜂窝通信网络中的GPS辅助消息及其方法

    公开(公告)号：US07747257B2

    公开(公告)日：2010-06-29

    申请号：US09785960

    申请日：2001-02-16

    申请人： Yilin Zhao ,  Thomas M. King ,  George J. Geier

    发明人： Yilin Zhao ,  Thomas M. King ,  George J. Geier

    IPC分类号： H04Q7/20

    CPC分类号： G01S19/05 ,  G01S19/07 ,  G01S19/08 ,  G01S19/258 ,  H04B7/18554 ,  Y02D70/1242 ,  Y02D70/164 ,  Y02D70/446

    摘要： GPS assistance message and data issue identifiers for transmission to GPS enabled mobile stations in cellular communications networks and methods therefore. The GPS data issue identifiers indicate whether GPS data, for example corresponding ephemeris and almanac data, stored at the mobile station requires updating. In the exemplary 3rd generation (W-CDMA/UMTS) architecture, the GPS assistance message is a System Information Block (SIB), and the GPS ephemeris data identifier and corresponding satellite identifier is encoded in a value tag included in a Master Information Block (MIB).

    摘要翻译： GPS辅助消息和用于在蜂窝通信网络中传输到启用GPS的移动台的数据问题标识符和方法。 GPS数据问题标识符指示存储在移动台处的GPS数据，例如对应的星历和历书数据是否需要更新。 在示例性的第三代（W-CDMA / UMTS）架构中，GPS辅助消息是系统信息块（SIB），并且GPS星历数据标识符和对应的卫星标识符被编码在包含在主信息块 MIB）。

    Providing time information
    10.
    发明授权
    Providing time information 失效
    提供时间信息

    公开(公告)号：US07373156B2

    公开(公告)日：2008-05-13

    申请号：US10821865

    申请日：2004-04-12

    申请人： Jussi Ruutu ,  Ville Ruutu ,  Jarko Niemenmaa

    发明人： Jussi Ruutu ,  Ville Ruutu ,  Jarko Niemenmaa

    IPC分类号： H04Q7/20

    CPC分类号： G01S19/05 ,  G01S19/23 ,  G01S19/256 ,  H04B7/18554

    摘要： A method for providing time information comprises sending time information to at least one communications device and receiving information indicating error in received time information from at least one of said at least one communications device, said error in received time information having been determined in a communications device. In a communications device, first time information from a communications system is received and second time information with respect to an external time frame is determined. Thereafter an error in first time information based on at least said second time information is determined, and information indicating said error in said first time information is sent to said communications system. A communications device, a communications system and a network element for a communications system are also discussed.

    摘要翻译： 一种用于提供时间信息的方法包括：向至少一个通信设备发送时间信息，并从所述至少一个通信设备中的至少一个接收指示接收到的时间信息中的错误的信息，所接收的时间信息中的所述错误已经在通信设备 。 在通信设备中，接收来自通信系统的第一时间信息，并且确定关于外部时间帧的第二时间信息。 此后，基于至少所述第二时间信息确定第一时间信息中的错误，并且将指示所述第一时间信息中的所述错误的信息发送到所述通信系统。 还讨论了通信设备，通信系统和用于通信系统的网络元件。