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    Timing synchronization for a beam hopping satellite
    3.
    发明授权
    Timing synchronization for a beam hopping satellite 有权

    公开(公告)号：US10361772B2

    公开(公告)日：2019-07-23

    申请号：US15914021

    申请日：2018-03-07

    申请人： Murali Regunathan ,  Yezdi Antia ,  Neal David Becker ,  Stanley Kay ,  Uday R. Bhaskar

    发明人： Murali Regunathan ,  Yezdi Antia ,  Neal David Becker ,  Stanley Kay ,  Uday R. Bhaskar

    IPC分类号： H04B7/185 ,  H04L27/26 ,  H04W72/04 ,  H04W28/18 ,  H04B7/204 ,  H04B7/06 ,  H04L7/00

    摘要： A system and method for timing synchronization of satellite switching instants with gateway switching instants is described. The method includes: generating satellite switching instants according to a Beam Hopping Time Plan (BHTP); generating gateway switching instants according to the BHTP; transmitting a channel addressed to a plurality of beams hopped according to the BHTP based on the gateway switching instants, wherein each of the plurality of beams includes a signal including timing markers and a guard period at an end of the signal for the respective beam; receiving a synchronization information, without a loopback beam, for one of the plurality of beams; determining an adjustment period and an adjusted symbol rate for the generating of the gateway switching instants, based on the synchronization information, for a transmission of the channel such that at least a portion of the guard period in a respective signal for a respective beam aligns with one of the satellite switching instants; and adjusting a timing and a symbol rate of the transmission according to the adjustment period and the adjusted symbol rate, respectively.

    SYSTEM AND METHOD FOR GATEWAY RF DIVERSITY USING A CONFIGURABLE SPOT BEAM SATELLITE
    5.
    发明申请
    SYSTEM AND METHOD FOR GATEWAY RF DIVERSITY USING A CONFIGURABLE SPOT BEAM SATELLITE 有权
    使用可配置点波束卫星的网关射频多样性的系统和方法

    公开(公告)号：US20130109299A1

    公开(公告)日：2013-05-02

    申请号：US13285467

    申请日：2011-10-31

    申请人： Dave Roos ,  Adrian Morris ,  Stanley Kay ,  George Choquette

    发明人： Dave Roos ,  Adrian Morris ,  Stanley Kay ,  George Choquette

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18528 ,  H04B7/18513 ,  H04B7/18515

    摘要： A system for gateway RF diversity using a configurable spot beam satellite including a satellite, a first gateway connected to a first VSAT population through the satellite by a first gateway spot beam and a first user spot beam set, a diversity gateway located outside of the first gateway spot beam for the first gateway, and a diversity control function to command the satellite to connect the first user spot beam set for the first gateway to a diversity gateway spot beam when the first gateway experiences service interruption.

    摘要翻译： 一种用于使用包括卫星的可配置点波束卫星的网关RF分集的系统，通过卫星通过第一网关点波束和第一用户点波束组连接到第一VSAT群的第一网关，位于第一 用于第一网关的网关点波束，以及当第一网关经历服务中断时命令卫星将第一网关的第一用户点波束组连接到分集网关点波束的分集控制功能。

    Method and apparatus for acquiring a synchronization signal
    6.
    发明授权
    Method and apparatus for acquiring a synchronization signal 有权

    公开(公告)号：US07042854B2

    公开(公告)日：2006-05-09

    申请号：US09768726

    申请日：2001-01-24

    申请人： Bassel Beidas ,  Olga Ritterbush ,  Stanley Kay ,  Yezdi Antia ,  Bala Subramaniam

    发明人： Bassel Beidas ,  Olga Ritterbush ,  Stanley Kay ,  Yezdi Antia ,  Bala Subramaniam

    IPC分类号： H04B7/212

    CPC分类号： H04J3/0611 ,  H04B7/2125 ,  H04L7/0004

    摘要： A method and system for acquiring a time division multiplexed synchronization signal in a satellite communication system is provided. The signal is provided as a series of frames with beacon signals time division multiplexed into at least one time slot of each frame. The beacon signal in each frame comprises a unique word sequence, which is the same in each frame, and a portion of a PN sequence. The entire PN sequence is distributed into a plurality of frames forming a superframe. Initially, the power level of the incoming signal is determined by locating the maximum power received in half time slot intervals. Next a series of frames are correlated against the expected unique word, each at one of a plurality of possible frequencies. The frequency generating the maximum correlation with the unique word is selected. The frequency is fine tuned by comparing the actual arrival time of the unique word in each frame with the estimated arrival time based on the current frequency, and adjusting the frequency accordingly. Also, the start of the superframe is located by correlating the PN sequence portion of each beacon signal against a known PN sequence until a match is found. Once the frequency offset is reduced below a threshold value, and the start of the PN sequence of the incoming signal is located, acquisition is completed.

    Method and apparatus for transmitting and receiving multiple services utilizing a single receiver in a broadband satellite system
    7.
    发明申请
    Method and apparatus for transmitting and receiving multiple services utilizing a single receiver in a broadband satellite system 审中-公开
    用于使用宽带卫星系统中的单个接收机发送和接收多个业务的方法和装置

    公开(公告)号：US20060045038A1

    公开(公告)日：2006-03-02

    申请号：US10927844

    申请日：2004-08-27

    申请人： Stanley Kay ,  John Schmid ,  Mark Steber ,  Adrian Morris ,  William Garner ,  Richard Clewer

    发明人： Stanley Kay ,  John Schmid ,  Mark Steber ,  Adrian Morris ,  William Garner ,  Richard Clewer

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18523

    摘要： A satellite-based communications network employing at least one satellite and a plurality of user terminals adapted for use with the communications network. The network includes a transmitter for transmitting data to the plurality of user terminals, where the data includes a plurality of broadcast modes and/or services. The transmitter transmits data in a packetized format in which a predetermined number of data packets are transmitted in a frame, where the frame is defined as a predetermined period of time. Further, the transmitter transmits each of the plurality of broadcast modes utilizing a single carrier frequency. Each of the plurality of user terminals includes a receiver for receiving the transmitted data and for regenerating the data so that the data is made available to a device coupled to the user terminal.

    摘要翻译： 一种基于卫星的通信网络，其采用适于与通信网络一起使用的至少一个卫星和多个用户终端。 网络包括用于向多个用户终端发送数据的发射机，其中数据包括多个广播模式和/或服务。 发送器以帧的形式将帧定义为预定时间段，以预定数量的数据分组发送的分组格式发送数据。 此外，发射机利用单载波频率来发送多个广播模式中的每一个。 多个用户终端中的每一个包括用于接收所发送的数据并用于再生数据的接收器，使得数据对于耦合到用户终端的设备可用。

    Cellular telephone with datagram and dispatch operation
    8.
    发明授权
    Cellular telephone with datagram and dispatch operation 失效
    蜂窝电话具有数据报和调度操作

    公开(公告)号：US5475689A

    公开(公告)日：1995-12-12

    申请号：US275161

    申请日：1994-07-14

    申请人： Stanley Kay ,  Ashok D. Mehta

    发明人： Stanley Kay ,  Ashok D. Mehta

    IPC分类号： G10L19/00 ,  H04B7/26 ,  H04J3/17 ,  H04L29/06 ,  H04W88/16 ,  H04W88/18 ,  H04W92/20 ,  H04W92/22 ,  H04J3/16

    CPC分类号： H04W88/16 ,  G10L19/012 ,  H04B7/26 ,  H04B7/2643 ,  H04J3/172 ,  H04L29/06 ,  H04W92/22 ,  H04W88/181 ,  H04W92/20

    摘要： A cellular system supports dispatch and datagram operations. The architecture of a conventional cellular system, such as the GSM system, is modified by adding a local area network (TIL) where nodes on the network include various base switching controllers (BSC). The BSC has a Switching Interface Module (SIM) which provides an interface to the TIL. The TIL may also include one or more gateways (40) to landline based networks. The datagram operation uses an appropriate gateway to complete a data path which includes an RF segment to or from the BSC. Dispatch operations provide for switching by the BSC so that switching is at a level below the Mobile Switching Center (MSC). For example, compressed voice traffic received by the BSC may be transmitted over the TIL to another BSC from where it is sent over an RF segment to a mobile receiver (MS).

    摘要翻译： 蜂窝系统支持调度和数据报操作。 诸如GSM系统的常规蜂窝系统的架构通过添加在网络上的节点包括各种基本交换控制器（BSC）的局域网（TIL）来修改。 BSC具有开关接口模块（SIM），其提供到TIL的接口。 TIL还可以包括一个或多个基于固定座的网络的网关（40）。 数据报操作使用适当的网关来完成数据路径，该数据路径包括到BSC或从BSC的RF段。 调度操作提供了由BSC切换，使得切换处于低于移动交换中心（MSC）的水平。 例如，由BSC接收的压缩语音业务可以通过TIL发送到另一BSC，从那里它通过RF段发送到移动接收机（MS）。