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公开(公告)号：US20180351636A1
公开(公告)日：2018-12-06
申请号：US16055703
申请日：2018-08-06
申请人： ViaSat, Inc.
CPC分类号： H04B7/18513 , H01Q1/06 , H01Q1/247 , H01Q1/288 , H01Q3/247 , H01Q3/40 , H01Q5/50 , H01Q19/132 , H01Q21/0025 , H01Q21/24 , H01Q25/001 , H04B7/024 , H04B7/0413 , H04B7/0617 , H04B7/18508 , H04B7/18515 , H04B7/18517 , H04B7/18534 , H04B7/1858 , H04B7/18586 , H04B7/18589 , H04B7/204 , H04B7/2041 , H04B10/118 , H04W16/26 , H04W16/28 , H04W40/20 , H04W76/02 , H04W76/10 , H04W84/06 , H05K999/99
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
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公开(公告)号：US10594624B2
公开(公告)日：2020-03-17
申请号：US16044358
申请日：2018-07-24
申请人： VIASAT, INC.
发明人： Mark D Dankberg , Daniel M Newman
IPC分类号： H04H20/71 , H04L12/927 , H04W4/06 , H04B7/185 , H04W72/04 , H04L29/08 , H04M3/42 , H04W72/00
摘要： Systems and methods are described for using opportunistically delayed delivery of content to address sub-optimal bandwidth resource usage in network infrastructures that allow subscribers to share forward link resources. According to some embodiments, content is identified as delayable and assigned to a delaycast queue and/or service flow. For example, a server system of a satellite communications system identifies content that can be delayed to exploit future excess link capacity through multicasting and to exploit subscriber-side storage resources. Some implementations attempt to exploit any excess link resources at any time, while others exploit unused bandwidth only during certain times or when a certain threshold of resources is available. Various embodiments also provide content scoring and/or other prioritization techniques for optimizing exploitation of the delaycast queue.
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公开(公告)号：US10707952B2
公开(公告)日：2020-07-07
申请号：US15748139
申请日：2016-07-26
申请人： VIASAT, INC.
发明人： Mark D Dankberg
摘要： Embodiments provide in-flight configuration of satellite pathways to flexibly service terra-link and cross-link traffic in a constellation of non-processed satellites, for example, to facilitate flexible forward-channel and return-channel capacity in a satellite communications system. For example, each satellite in the constellation can include one or more dynamically configurable pathway, and switching and/or beamforming can be used to configure each pathway to be a forward-channel pathway or a return-channel pathway in each of a number of timeslots according to a pathway configuration schedule. At least some of the pathways can be further selectively configured, in each timeslot, to carry “terra-link” traffic to and/or from terrestrial terminals and “cross-link” traffic to and/or from one or more other satellites of the constellation.
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公开(公告)号：US10211911B2
公开(公告)日：2019-02-19
申请号：US16055703
申请日：2018-08-06
申请人： ViaSat, Inc.
IPC分类号： H04B7/185 , H04B7/06 , H04W84/06 , H01Q25/00 , H01Q21/24 , H01Q19/13 , H04B7/204 , H04W40/20 , H04W16/28 , H01Q1/28 , H01Q3/24 , H04W76/10 , H01Q3/40 , H04B10/118 , H01Q5/50 , H01Q1/06 , H01Q21/00 , H04W16/26 , H01Q1/24
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
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公开(公告)号：US11743207B2
公开(公告)日：2023-08-29
申请号：US17353226
申请日：2021-06-21
申请人： ViaSat, Inc.
发明人： Mark D Dankberg , Daniel M Newman
IPC分类号： H04W56/00 , H04L47/80 , H04B7/185 , H04L67/62 , H04W72/30 , H04W4/06 , H04M3/42 , H04W72/0446
CPC分类号： H04L47/805 , H04B7/18517 , H04B7/18584 , H04B7/18595 , H04L47/801 , H04L67/62 , H04M3/42178 , H04W4/06 , H04W72/0446 , H04W72/30
摘要： Systems and methods are described for using opportunistically delayed delivery of content to address sub-optimal bandwidth resource usage in network infrastructures that allow subscribers to share forward link resources. According to some embodiments, content is identified as delayable and assigned to a delaycast queue and/or service flow. For example, a server system of a satellite communications system identifies content that can be delayed to exploit future excess link capacity through multicasting and to exploit subscriber-side storage resources. Some implementations attempt to exploit any excess link resources at any time, while others exploit unused bandwidth only during certain times or when a certain threshold of resources is available. Various embodiments also provide content scoring and/or other prioritization techniques for optimizing exploitation of the delaycast queue.
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公开(公告)号：US11070490B2
公开(公告)日：2021-07-20
申请号：US16790353
申请日：2020-02-13
申请人： ViaSat, Inc.
发明人： Mark D Dankberg , Daniel M Newman
IPC分类号： H04W56/00 , H04L12/927 , H04L29/08 , H04B7/185 , H04W4/06 , H04M3/42 , H04W72/00 , H04W72/04
摘要： Systems and methods are described for using opportunistically delayed delivery of content to address sub-optimal bandwidth resource usage in network infrastructures that allow subscribers to share forward link resources. According to some embodiments, content is identified as delayable and assigned to a delaycast queue and/or service flow. For example, a server system of a satellite communications system identifies content that can be delayed to exploit future excess link capacity through multicasting and to exploit subscriber-side storage resources. Some implementations attempt to exploit any excess link resources at any time, while others exploit unused bandwidth only during certain times or when a certain threshold of resources is available. Various embodiments also provide content scoring and/or other prioritization techniques for optimizing exploitation of the delaycast queue.
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公开(公告)号：US10313000B2
公开(公告)日：2019-06-04
申请号：US16044911
申请日：2018-07-25
申请人： ViaSat, Inc.
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
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公开(公告)号：US20190052348A1
公开(公告)日：2019-02-14
申请号：US16044911
申请日：2018-07-25
申请人： ViaSat, Inc.
摘要： Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
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