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公开(公告)号：EP3691142A1
公开(公告)日：2020-08-05
申请号：EP20153096.1
申请日：2020-01-22
IPC分类号： H04B7/185
摘要： A wideband transceiver for a gateway is presented. The wideband transceiver may interface with the gateway's processors over an interface that carries data encapsulated in baseband frames. The wideband transceiver may comprise a modulator and a high power amplifier and may improve a transmitted signal quality and may utilize a wideband for wireless communications, for example, for a satellite communication system.
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公开(公告)号：EP2736208A3
公开(公告)日：2016-03-16
申请号：EP13194447.2
申请日：2013-11-26
发明人： Ram, Uzi , Bialer, Oded
CPC分类号： H04B7/1851 , H03L7/00 , H04L1/20 , H04L27/0014 , H04L27/266 , H04L2027/003 , H04L2027/0065 , H04L2027/0067
摘要： Methods are presented herein for estimating at least a frequency (offset) for a block of received symbols using two or more estimation stages. These methods may allow reducing the computational complexity of a frequency estimator while maintaining large frequency offset coverage and high frequency estimation accuracy. Also are presented satellite communication systems employing any of burst transmission and continuous transmission. Said systems may be configured to estimate at least a frequency (offset) for any of a received burst or a block of received symbols using two or more estimation stages. In some embodiments, said burst or said block of symbols may include a Unique Word located at or about the center of the block of symbols.
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公开(公告)号：EP2736208A2
公开(公告)日：2014-05-28
申请号：EP13194447.2
申请日：2013-11-26
发明人： Ram, Uzi , Bialer, Oded
IPC分类号： H04L27/00
CPC分类号： H04B7/1851 , H03L7/00 , H04L1/20 , H04L27/0014 , H04L27/266 , H04L2027/003 , H04L2027/0065 , H04L2027/0067
摘要： Methods are presented herein for estimating at least a frequency (offset) for a block of received symbols using two or more estimation stages. These methods may allow reducing the computational complexity of a frequency estimator while maintaining large frequency offset coverage and high frequency estimation accuracy. Also are presented satellite communication systems employing any of burst transmission and continuous transmission. Said systems may be configured to estimate at least a frequency (offset) for any of a received burst or a block of received symbols using two or more estimation stages. In some embodiments, said burst or said block of symbols may include a Unique Word located at or about the center of the block of symbols.
摘要翻译： 本文给出了使用两个或多个估计阶段估计接收符号块的至少频率（偏移）的方法。 这些方法可以允许降低频率估计器的计算复杂度，同时保持大的频率偏移覆盖和高频率估计精度。 还呈现采用任何突发传输和连续传输的卫星通信系统。 所述系统可以被配置为使用两个或多个估计级来估计接收到的突发或接收符号的块中的任何一个的频率（偏移）。 在一些实施例中，所述突发或所述符号块可以包括位于或围绕符号块的中心的唯一字。
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4.发明授权
公开(公告)号：EP2073399B1
公开(公告)日：2014-02-12
申请号：EP08022007.2
申请日：2008-12-18
发明人： Pinchas, Magal , Tamam, Ronen , Laish, Isacc Ben
IPC分类号： H04B7/185
CPC分类号： H04B7/18513 , H04B7/18519 , H04B7/18573 , H04B7/18597 , Y02D70/168 , Y02D70/22 , Y02D70/446
摘要： Method and apparatus for dynamically optimizing the transmission level of each remote terminal in a satellite-based communication network. Each remote terminal maintains quasi-error-free communication at the highest efficiency level available under changing link conditions and network configurations, without requiring the reservation of substantial power margins, which results in a much more efficient satellite network.
摘要翻译： 用于在卫星通信网络中动态优化每个远程终端的传输级别的方法和装置。 每个远程终端在变化的链路条件和网络配置下以最高效率级别保持准无错误通信，而不需要保留大量功率余量，这导致更高效的卫星网络。
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5.发明公开
公开(公告)号：EP2632212A2
公开(公告)日：2013-08-28
申请号：EP13169047.1
申请日：2009-08-11
发明人： Eran, Haccoon , Sneer, Brener , Haim, Halfon , Guy, Levitas
CPC分类号： H04W24/08 , H04B7/18584 , H04J3/0644 , H04L7/0008 , H04N21/242 , H04N21/4305 , H04W56/00 , Y02D70/00 , Y02D70/122 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/446
摘要： In a satellite-based communication network comprised of a central hub and plurality of remote terminals configured to transmit data to and receive data from the central hub in accordance with EN 301 790 (DVB-RCS), and where one or more of these remote terminals may be configured to include an additional receiver module configured to receive MF-TDMA transmission of other remote terminals, a mesh receiver and methods for coupling the mesh receiver with the host remote terminal. In addition, described herein are methods for synchronizing the mesh receiver on the network's timing and frequency and for utilizing the available link power for achieving efficient connectivity.
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6.发明公开Fast acquisition of frame timing and frequency 审中-公开Schnelle Erfassung von Rahmentakt- und-frequenz
公开(公告)号：EP2615770A2
公开(公告)日：2013-07-17
申请号：EP12192244.7
申请日：2012-11-12
发明人： Ram, Uzi , Levitsky, Michael , Bialer, Oded , Levitas, Guy
CPC分类号： H04L7/042 , H04L27/0014 , H04L2027/0026 , H04L2027/0087
摘要： Modern digital signals include framing. A known sequence of transmission symbols (Unique Word (UW)) included in the transmitted signal may be used by a receiver for framing synchronization. A receiver configured to receive such a signal may be configured to detect the UW even when the signal is received with some frequency uncertainty (e.g. offset or error). A method is presented for fast acquisition of symbol and/or frame timing of a signal, including in the presence of frequency uncertainty. In some embodiments, the presented method may be used for determining a frequency offset of the received signal and a location of a unique word (UW) within a frame of the received signal, wherein said determining is based on a two-dimensional search map.
摘要翻译： 现代数字信号包括框架。 包含在发送信号中的已知的发送符号序列（唯一字（UW））可以被接收机用于成帧同步。 配置为接收这样的信号的接收机可以被配置为即使在以一些频率不确定性（例如偏移或误差）接收到信号时也检测UW。 提出了一种用于快速获取信号的符号和/或帧定时的方法，包括在存在频率不确定性的情况下。 在一些实施例中，所呈现的方法可以用于确定接收信号的频率偏移和在接收信号的帧内的唯一字（UW）的位置，其中所述确定基于二维搜索映射。
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7.发明公开Multi-carrier satellite network supporting heterogeneous terminals 有权Mehrträger-Satellitennetzwerk mitUnterstützungheterogenerEndgeräte
公开(公告)号：EP2451089A2
公开(公告)日：2012-05-09
申请号：EP11187764.3
申请日：2011-11-03
IPC分类号： H04B7/185
CPC分类号： H04B7/18515 , H04B7/18541 , H04B7/2045
摘要： In a satellite communication system, comprising a hub and a plurality of heterogeneous terminals, the hub may split a bandwidth segment designated for a forward channel into at least two carriers, wherein some of the terminals may listen on a first carrier and some other terminals may listen on the at least second carrier. In this system, the hub may re-arrange the split of the bandwidth segment between the various carriers populating it in real-time or substantially in real-time, while the carriers are actively transmitted, and without causing loss of service and/or loss of data to terminals listening on those carriers. The terminals may be configured to track the carriers as they are re-arranged and to maintain seamless service to the end user throughout the re-arrangement process.
摘要翻译： 在包括集线器和多个异构终端的卫星通信系统中，集线器可以将指定用于正向信道的带宽段划分为至少两个载波，其中一些终端可以在第一载波上侦听，并且一些其它终端可以 至少听二号听筒。 在该系统中，集线器可以在载波被主动传输的同时，实时地或基本上实时地在各种载波之间重新布置带宽段的分割，而不会造成服务丢失和/或丢失 的数据到收听这些运营商的终端。 终端可以被配置为在重新布置时跟踪载体，并且在整个重新安排过程中保持对最终用户的无缝服务。
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8.发明授权Frequency and timing synchronization and error correction in a satellite network 有权频率和时间同步和误差校正的卫星网络
公开(公告)号：EP1480354B1
公开(公告)日：2012-04-18
申请号：EP04253039.4
申请日：2004-05-24
发明人： Ram, Uzi , Keshet, Arik , Keschet, Daniel
IPC分类号： H04B7/185
CPC分类号： H04B7/208 , H04B7/18528 , H04B7/2125
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9.发明公开
公开(公告)号：EP2408059A1
公开(公告)日：2012-01-18
申请号：EP11173666.6
申请日：2011-07-12
发明人： Halavi, Moshe , Peled, Hagay , Berger, Adi
CPC分类号： H01Q1/1257 , B64G3/00 , H01Q3/06
摘要： A satellite communication ground station configured for communicating over an inclined orbit geostationary satellite may include a tracking antenna having three fixed axis and one moving axis, a motor (150) for swinging the antenna along the moving axis, a controller (120) for controlling the motor, a receiver (130) configured to receive a signal arriving from the satellite via the tracking antenna and an estimator (140) configured to estimate reception quality of a signal received by the receiver. Furthermore, a method for tracking an inclined orbit geostationary satellite, the method comprising a learning step and a tracking step, wherein the learning step includes use of a filter for reducing alignment errors and reducing the amount of peaking required for aligning the antenna with the satellite and tracking its movement.
摘要翻译： 配置用于通过倾斜轨道对地静止卫星通信的卫星通信地面站可以包括具有三个固定轴和一个移动轴的跟踪天线，一个用于沿着移动轴摆动天线的马达（150），一个控制器 电动机，被配置为经由跟踪天线接收从卫星到达的信号的接收器（130）;以及被配置为估计由接收器接收的信号的接收质量的估计器（140）。 此外，一种用于跟踪倾斜轨道对地静止卫星的方法，该方法包括学习步骤和跟踪步骤，其中学习步骤包括使用滤波器来减少对准误差并减少将天线与卫星对准所需的峰值量 并跟踪其运动。
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公开(公告)号：EP2360855A1
公开(公告)日：2011-08-24
申请号：EP11154084.5
申请日：2011-02-10
发明人： Ram, Uzi
CPC分类号： H04B7/1858
摘要： This invention presents methods for transmitting and receiving data via a satellite and satellite communication systems thereof. A transmitted signal may include a stream of transmission blocks, whereas each transmission block may differ from a previous transmission block by any of a spreading characteristic, an error correction code-rate characteristic and a modulation characteristic. In addition, any of the spreading, error correction code-rate and modulation characteristics may be changed in accordance with momentary reception conditions at a receiving station.
摘要翻译： 本发明提供了经由其卫星和卫星通信系统发送和接收数据的方法。 发送信号可以包括传输块流，而每个传输块可以通过扩展特性，纠错码率特性和调制特性中的任何一个不同于先前的传输块。 此外，可以根据接收站处的瞬时接收条件来改变任何扩展，纠错码率和调制特性。
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