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公开(公告)号：US11750278B2
公开(公告)日：2023-09-05
申请号：US17132115
申请日：2020-12-23
发明人： Murali Regunathan
CPC分类号： H04B7/1855 , H04B7/0693 , H04B7/18543 , H04W52/241 , H04W52/265
摘要： A terminal computer includes a processor and a memory. The memory stores instructions executable by the processor to determine an initial power back-off value for establishing a communication link to a satellite as a function of a distance of a location of a satellite terminal antenna within a satellite beam footprint from a specified reference point within the satellite beam footprint, and to initiate communication with the satellite based on the determined initial power back-off value.
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公开(公告)号：US10735087B2
公开(公告)日：2020-08-04
申请号：US15819905
申请日：2017-11-21
发明人： Murali Regunathan , David A. Roos
摘要： A computer comprises a processor programmed to identify a plurality of sets of channels. Each set of channels includes first, second and third channels. The first and second channels in each set include uplinks respectively in first and second neighbor beams and have a first bandwidth overlap. The first and third channels in each set share a target and a third downlink included in the third channel has a second bandwidth overlap with a first downlink included in the first channel. the second bandwidth overlap includes a bandwidth corresponding to at least a portion the first bandwidth overlap, such that a signal spectrum in the first bandwidth overlap is included in the second bandwidth overlap. The computer is further programmed to optimize a bandwidth reduction across the plurality of sets of channels.
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公开(公告)号：US20190273556A1
公开(公告)日：2019-09-05
申请号：US16415093
申请日：2019-05-17
发明人： Murali Regunathan , Yezdi Antia
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for adjusting the transmission power of satellite transceivers based on estimated interference. In some implementations, a satellite transceiver receives a data structure that specifies an interference compensation value for at least one frequency channel on which the satellite transceiver can transmit. The interference compensation value for the frequency channel is based on estimated interference imposed on satellite transmissions transmitted by the transceiver on the frequency channel. The transceiver receives data specifying a second transmit frequency channel to use for a second satellite transmission. A first interference compensation value for a first frequency channel and a second interference compensation value for the second frequency channel are identified from the data structure. The power level of the transmitter of the transceiver is adjusted based on a difference between the second interference compensation value and the first interference compensation value.
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4.发明授权公开(公告)号：US11336562B2
公开(公告)日：2022-05-17
申请号：US16532485
申请日：2019-08-06
发明人： Murali Regunathan , David Alan Roos
摘要： Systems and methods are described, and one method includes storing, in association with a backup gateway resource, a first and second primary to backup (P2B) pairing coefficient, and a first and second backup to primary (B2P) pairing coefficient. The first and second P2B pairing coefficients correspond to a first and second P2B pairing, respectively. The first and second B2P pairing coefficients are indicative of a metric of switching from the backup GWR to the first and second primary GWRs. A respective unavailability metric is received from the first primary GWR, second primary GWR, respectively, and backup GWR. A P2B pairing is selected selecting, based at least partially on the first and second P2B pairing coefficients, and first and the second B2P pairing coefficients. Traffic is switched to the backup GWR from the one of the first primary and second primary GWR corresponding to the selected P2B pairing.
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公开(公告)号：US11196584B2
公开(公告)日：2021-12-07
申请号：US16792017
申请日：2020-02-14
IPC分类号： H04L12/28 , H04L12/863 , H04L12/26 , H04L12/891 , H04L29/06
摘要： Implementations of the disclosure are directed to network layer channel bonding. In one implementation, a method comprises: operating a first communication device to transmit data to a second communication device over multiple communication links, each of the communication links associated with a respective communication medium; receiving, at the first communication device, an input data stream for transmission to the second communication device, the input data stream comprising packets; determining, at the first communication device, a throughput and latency of each of the communication links; based on the determined throughput and latency of each of the communication links: dividing the packets into multiple sets, each of the sets configured to be transmitted by the first communication device over a respective one of the communication links; and transmitting, from the first communication device to the second communication device, each of the sets of packets over the set's respective communication link.
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公开(公告)号：US20190007126A1
公开(公告)日：2019-01-03
申请号：US15639538
申请日：2017-06-30
发明人： Murali Regunathan , Yezdi Antia
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for adjusting the transmission power of satellite transceivers based on estimated interference. In some implementations, a satellite transceiver receives a data structure that specifies an interference compensation value for at least one frequency channel on which the satellite transceiver can transmit. The interference compensation value for the frequency channel is based on estimated interference imposed on satellite transmissions transmitted by the transceiver on the frequency channel. The transceiver receives data specifying a second transmit frequency channel to use for a second satellite transmission. A first interference compensation value for a first frequency channel and a second interference compensation value for the second frequency channel are identified from the data structure. The power level of the transmitter of the transceiver is adjusted based on a difference between the second interference compensation value and the first interference compensation value.
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公开(公告)号：US09985713B2
公开(公告)日：2018-05-29
申请号：US14794948
申请日：2015-07-09
发明人： Bahman Salamat , Murali Regunathan , David A. Roos
CPC分类号： H04B7/14 , H04B7/2041 , H04W16/18
摘要： An apparatus for defining and generating boundaries of satellite coverage. The apparatus includes a processor that is configured to select a plurality of beam points, from a set of points on a coordinate system, to be included within a beam definition, and determine a number of ellipses capable of enclosing the selected beam points while excluding all remaining points of the set of points. The processor then assigns the selected beam points to a corresponding ellipse, and optimizes geometric information for each ellipse to enclose the beam points assigned thereto. A coverage beam is then defined based on a contour resulting from the combined shape of all the ellipses using the optimized geometric information.
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8.发明公开公开(公告)号：US20230370160A1
公开(公告)日：2023-11-16
申请号：US18196150
申请日：2023-05-11
发明人： Satyajit Roy , Murali Regunathan , Rajeev Oza
IPC分类号： H04B7/185 , H04W72/0453
CPC分类号： H04B7/18519 , H04W72/0453 , H04W84/06
摘要： Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for ground system techniques to support flexible reconfigurable satellite payload operation. In some implementations, a satellite communication network is managed to operate in a first configuration. The satellite communication network includes a satellite having a payload that enables dynamic reconfiguration of carriers within a beam. A reconfiguration event is detected, and in response, a second configuration is determined for the satellite communication network. The second configuration differs from the first configuration in at least one of a set of carriers used for the beams or an assignment of the carriers to gateways. The satellite network is managed to operate in the second configuration, including at least one of (i) changing to a second set of carriers for the beams of the satellite or (ii) changing to a second assignment of the carriers to the gateways.
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公开(公告)号：US11128570B2
公开(公告)日：2021-09-21
申请号：US16732265
申请日：2019-12-31
发明人： Murali Regunathan , Jack Rozmaryn
摘要： A system and method are disclosed for estimating the location of a satellite terminal. A plurality of gateways having known locations are identified. A plurality of reference terminals associated with the gateways are identified, wherein a reference round-trip time (RTT) for signals between each reference terminal and the gateways via the satellite is known. The RTT is used to estimate the satellite's position over a plurality of time instances. The location of a selected terminal associated with a selected gateway is estimated based, in part, on the estimated satellite positions and an RTT for signals between the selected terminal and the selected gateway.
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公开(公告)号：US20210203409A1
公开(公告)日：2021-07-01
申请号：US16728260
申请日：2019-12-27
发明人： Murali Regunathan , David A. Roos
摘要： A user terminal and a method of using the user terminal disclosed. The method may comprise: storing, at a user terminal (UT), a dataset that comprises a plurality of elements, wherein each of the plurality of elements is associated with a unique predetermined terrestrial location; using the dataset, determining an element (Ek) from among the plurality of elements based on a proximity of the UT to the respective unique, predetermined terrestrial location of the element (Ek); and then determining one of the plurality of satellite beams with which to utilize satellite communication.
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