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公开(公告)号：US20220116106A1
公开(公告)日：2022-04-14
申请号：US17560028
申请日：2021-12-22
发明人： Tayyab Khan , Krishna Samavedam , George Choquette
摘要： Systems and methods for operating a multi-band satellite terminal are disclosed. One aspect disclosed features a method, comprising: controlling a multi-band satellite terminal capable of receiving signals on a plurality of frequency bands to receive a signal transmitted by a satellite on a first frequency band of the plurality of frequency bands; determining link conditions of the first frequency band based on the received signal; generating an estimate of link conditions of a second frequency band of the plurality of frequency bands, wherein the estimate is generated based on the link conditions of the first frequency band; selecting the second frequency band based on the estimate of the link conditions of the second frequency band; and controlling the multi-band satellite ground terminal to receive the signal transmitted by the satellite on the second frequency band.
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公开(公告)号：US20210203410A1
公开(公告)日：2021-07-01
申请号：US16731605
申请日：2019-12-31
发明人： Tayyab Khan , Krishna Samavedam , George Choquette
摘要： Systems and methods for operating a multi-band satellite terminal are disclosed. One aspect disclosed features a method, comprising: controlling a multi-band satellite terminal capable of receiving signals on a plurality of frequency bands to receive a signal transmitted by a satellite on a first frequency band of the plurality of frequency bands; determining link conditions of the first frequency band based on the received signal; generating an estimate of link conditions of a second frequency band of the plurality of frequency bands, wherein the estimate is generated based on the link conditions of the first frequency band; selecting the second frequency band based on the estimate of the link conditions of the second frequency band; and controlling the multi-band satellite ground terminal to receive the signal transmitted by the satellite on the second frequency band.
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公开(公告)号：US10917860B1
公开(公告)日：2021-02-09
申请号：US16589924
申请日：2019-10-01
发明人： Guy Montgomery , George Choquette
摘要： Some implementations of the disclosure are directed to a satellite terminal comprising: a modem; and a radio frequency unit (RFU) configured to amplify and frequency upconvert a transmit signal for transmission over an inroute channel of a satellite communications network, the RFU comprising: an input power meter configured to measure a first power level of an intermediate frequency (IF) signal transmitted from the modem to an input of the RFU; an upconverter configured to frequency upconvert the IF signal to obtain a radio frequency (RF) signal; and an output power meter configured to measure a second power level of the RF signal. By taking the readings from the input and output power meters of the RFU, one or more calibration related functions, including a determination of the power loss due to the IF cable or a determination of the upconverter's gain, may be automatically performed at the satellite terminal.
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公开(公告)号：US20200162985A1
公开(公告)日：2020-05-21
申请号：US16196265
申请日：2018-11-20
发明人： Satyajit Roy , George Choquette
摘要： A system includes a computer that is programmed to actuate to switch from a first satellite link between a terminal and a first satellite to a second satellite link upon determining that a data throughput of the first satellite relative to a first satellite throughput capacity exceeds a threshold.
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公开(公告)号：US10397179B2
公开(公告)日：2019-08-27
申请号：US15890216
申请日：2018-02-06
发明人： George Choquette , Robert James Torres , Nagesh Javali , John Leonard Border , Gregory Presbury , Ramakrishnan Jayant
IPC分类号： G06F15/173 , H04L29/12 , H04L29/06
摘要： Methods and systems for providing sourcing Internet access requests from ISP subscribers serviced by a gateway not physically located near the subscribers. As the localization needs of all subscribers are not necessarily the same, the gateway determines an appropriate source IP address to use to ensure that the IP protocol localization features work efficiently. In addition, the gateway can help enforce rules related to the governing law of the geographic area of the subscriber and/or rules based on the content providers licensing. Through determination of the context of a request, the gateway may also determine whether localized sourcing of a request is necessary based on the type of content being requested.
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公开(公告)号：US10312996B2
公开(公告)日：2019-06-04
申请号：US15281737
申请日：2016-09-30
发明人： George Choquette
摘要： Techniques are described for implementing adaptive coding and modulation (ACM) in regenerative satellite systems to adapt the modulation and/or FEC coding of transmitted waveforms to the conditions of the link. In a first implementation, ACM is implemented on an uplink from a terminal to a regenerative satellite. In this implementation, an uplink modulation and coding combination (ModCod) is estimated by the transmitting terminal based on the quality of signals received from the regenerative satellite on the downlink. In a second implementation, ACM may be implemented on a downlink from a regenerative satellite to a terminal. In this implementation, a transmit terminal may insert a field in a transmitted packet header that indicates a downlink ModCod to be used by the regenerative satellite when transmitting packets to a receiving terminal. The regenerative satellite may reencode and remodulate the packet using the ModCod indicated in the field of the packet header.
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7.发明申请公开(公告)号：US20180098248A1
公开(公告)日：2018-04-05
申请号：US15723127
申请日：2017-10-02
IPC分类号： H04W28/24 , H04L12/923 , H04W28/10 , H04W28/02 , H04W24/10
摘要： Disclosed methods include a resource manager in a multiple node network receiving a demand for additional bandwidth, from a terminal, and the resource manager having updated information on the state of the mobile node network and, using that the state information, performing test allocation of the requested bandwidth to the requesting terminal. Disclosed methods include determining whether previous commitments of service can be met with the test allocation in place. Associated with a positive result, an allocation is sent to the terminal.
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8.发明申请APPARATUS AND METHOD FOR A BANDWIDTH ALLOCATION APPROACH IN A SHARED BANDWIDTH COMMUNICATIONS SYSTEM 审中-公开分布式带宽通信系统中的带宽分配方法的装置和方法公开(公告)号：US20150296409A1
公开(公告)日：2015-10-15
申请号：US14686768
申请日：2015-04-14
发明人： Jun XU , Robert Torres , John Border , George Choquette
CPC分类号： H04B7/18584 , H04L41/0896 , H04L43/0888 , H04L43/16 , H04L47/6275 , H04W28/0284 , H04W72/1221 , H04W72/1247
摘要： An approach is provided for delivering high throughput inroute bandwidth to a terminal in a shared bandwidth satellite communications system. A backlog level of each of a number of remote terminals is monitored, wherein the backlog level of each terminal reflects an amount of data traffic awaiting transmission via an inroute channel of the communications system. When it is determined that the backlog level of one terminal meets a first threshold level, the terminal is assigned to an express priority bandwidth allocation stage. The backlog level of the terminal is monitored while assigned to the express priority stage. When it is determined that the backlog level of the terminal has fallen below a second threshold level, the terminal is removed from the express priority stage. Further, a probability is applied to a qualifying terminal, where the probability controls whether the terminal is assigned to the express priority bandwidth stage.
摘要翻译： 提供了一种用于向共享带宽卫星通信系统中的终端提供高吞吐量的入口带宽的方法。 监视多个远程终端中的每一个的积压级别，其中每个终端的积压级别反映通过通信系统的路由信道等待传输的数据业务量。 当确定一个终端的积压级别满足第一阈值级别时，将终端分配给明确的优先级带宽分配级。 在分配到快速优先级时监视终端的积压级别。 当确定终端的积压水平已经降到低于第二阈值水平时，终端从快速优先级移除。 此外，概率被应用于限定终端，其中概率控制终端是否被分配到明确优先级带宽级。
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公开(公告)号：US11438763B2
公开(公告)日：2022-09-06
申请号：US16583004
申请日：2019-09-25
IPC分类号： H04L29/06 , H04W12/037 , H04L61/4511 , H04L9/40 , H04L12/18 , H04B7/185
摘要： A process for improving network performance in systems that utilize secure domain name system (DNS) schemes. Encrypted DNS requests from devices in a local area network (LAN), such as a home or office, are submitted to a local proxy which stores cached DNS records. The proxy decrypts or examines at least a portion of the DNS request in order search for a matching record in its storage. Matching records are retrieved, encrypted, and supplied to the requesting device to satisfy the DNS request. If the proxy does not contain a matching record, the DNS query is encrypted and submitted to an external DNS server for resolution. The matching record can optionally be saved by the proxy prior to being supplied to the requesting device.
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公开(公告)号：US20210344603A1
公开(公告)日：2021-11-04
申请号：US17321890
申请日：2021-05-17
IPC分类号： H04L12/801 , H04B7/185 , H04L12/807
摘要： A terrestrial terminal enables communications, over a network connection, between a local host of one or more connected local hosts and a remote host. The terrestrial terminal is configured to perform operations comprising: receiving, from the remote host, a network packet for the local host; obtaining, from the network packet, an included TCP segment; determining, from the TCP segment, a receive window size advertised by the remote host; computing, using one or more characteristics of the network connection, a target receive window size; comparing the target receive window size with the advertised receive window size; and in response to determining that the target receive window size is different from the advertised receive window size: modifying the TCP segment by replacing the advertised receive window size with the target receive window size, and forwarding the network packet with the modified TCP segment to the local host.
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