Hughes Network Systems, LLC

Hughes Electronics Corporation

Other

John Leonard Border

Robert James Torres

Jun Xu

Douglas M Dillon

George Joseph Choquette

Matthew Mario Butehorn

Nagesh Javali

Patrick Stevens

Peter Pardee

Murali Regunathan

Nigel Keith Bartlett

Stanley Edward Kay

Chi-Jiun Su

David Alan Roos

Vivek Gupta

David Whitefield

Hanny Kadrichu

Rob Torres

Venkat Ganesan

Zengquan Fan

Szuyuan Huang

Bhavit Jogeshkumar Shah

Ramakrishnan Jayant

Gregory Marnte Presbury

Zheng Wu

Deepak Manohar Arur

Frank Kelly

Nimesh Ambeskar

Matthew Baer

Robert Jeff Heath

Je-Hong Jong

Daniel Friedman

Mangala Kannan

Zili Qian

Ken Burrell

Vaibhav Kumar

Ashritha Mohan Ram

Yangang Li

Jayant Sonrexa

Matt Butehorn

Greg Gee

Deepak Aryee

Dennis Conti

Matthew Butehorn

Pat Stevens

Erik Xu

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamically reducing an aperture size to reduce overhead. For example, a server can receive a first transmission from a first terminal through a communication network. The server can determine a timing offset associated with the first terminal based on the first transmission. The server can determine an aperture window size for an aperture window for the first terminal based on the determined timing offset associated with the first terminal. The server can generate allocation data that assigns communication resources to one or more terminals that includes the first terminal, the allocation data being based on the determined aperture window size for the first terminal. The server can communicate with the one or more terminals to indicate the communication resources respectively allocated to the one or more terminals.

Efficient bandwidth utilization for communication systems

Dynamic in-route reconfiguration in a satellite network includes receiving at least one of transmit power capability and demand requirements from one or more active satellite terminals of the satellite network, determining a resulting in-route configuration during operation of the satellite network based on the received at least one of transmit power capability and demand requirements, comparing the determined resulting in-route configuration to a current in-route configuration. When the determined resulting in-route configuration is different from the current in-route configuration, establishing the determined resulting in-route configuration as the current in-route configuration and storing the established current in-route configuration in a dynamic in-route reconfiguration manager, and transmitting the established current in-route configuration to the one or more active satellite terminals.

Dynamic inroute reconfiguration of satellite network communication systems

Systems and methods for aligning timing of an inroute transmission of a terminal with a gateway are disclosed. A system may include a processor and a memory storing instructions, which when executed by the processor, may cause the processor to perform a random estimation of location pertaining to a time-division multiple access (TDMA) frame boundary of a gateway. Based on an asynchronous scrambled coded multiple access (ASCMA) technique, the system may transmit ASCMA group burst packets including precise timing feedback request for the gateway. The system may receive a feedback from the gateway, in response to the precise timing feedback request. The processor may determine an adjustment for aligning timing of an inroute transmission of the terminal with respect to the TDMA frame boundary of the gateway. The system may apply the adjustment to synchronize the timing of the inroute transmission of the terminal with the gateway.

Timing alignment for inroute transmission in a satellite communication system

An Encrypted Transport (ET) proxy module is configured to receive incoming ET proxy packets from an ET proxy backbone module and transmit outgoing ET proxy packets to the ET proxy backbone module. The ET proxy module is also configured to set up an HTTP tunnel with an ET proxy client of the client device or with an ET proxy at a web server for receiving incoming UDP payloads from the client device or web server and transmitting outgoing UDP payloads to the client device or web server. The ET proxy module is also configured to receive prioritization preferences from client devices or web servers pertaining to the UDP payloads indicating preferred quality-of-service (QoS) classes for the UDP payloads, and to schedule transmission of the outgoing UDP payloads via the HTTP tunnel based on QoS classes of the outgoing UPD payloads.

Distributed proxy for encrypted transport protocols with efficient multi-priority multiplexed transport for improving user's traffic QOS

Systems and methods for differentiated application of an Adaptive Coding and Modulation (ACM) to enhance link performance in satellite communication systems are disclosed. A system may include a processor and a memory storing instructions, which when executed by the processor, cause the processor to dynamically compute bandwidth capacity of a terminal from a plurality of terminals. Based on the computed bandwidth capacity of the terminal, the processor may automatically determine a ModCod to be applied for transmission to or from the terminal to optimize bit error rate (BER) performance. The to processor may determine the ModCod using an ACM technique. For the plurality of terminals, the processor may dynamically determine aggregate bandwidth availability and congestion within the ACM technique to optimize sharing of available bandwidth.

Satellite system optimization by differentiating application of adaptive coding and modulation

An Encrypted Transport Proxy Backbone Protocol module is configured to set up ET Proxy Backbone connections with another distributed proxy device with each ET Proxy Backbone connection including multiple ET Proxy Backbone channels for transmitting ET proxy packets having different QoS classes. Each ET Proxy Backbone channel includes a separate queue. The ET Proxy Backbone Protocol module is also configured to schedule transmissions of the ET proxy packets from each respective queue; multiplex the ET proxy packets from each respective queue via the associated ET Proxy Backbone channel; perform local recovery of network impairments over the access network and perform congestion control to prevent packets from client devices and web servers from causing network congestion to the access network.

Distributed proxy for encrypted transport protocol with efficient multi-priority multiplexed transport for improving user's traffic QoS

A method and system for determining inroute frame timing for a Very Small Aperture Terminal (VSAT) includes receiving an appointment to transmit, on an inroute, at a start of a slot X of a frame number M; establishing, at a VSAT, an arrival time of a super frame numbering packet (SFNP) including a satellite ephemeris vector and a frame number N; calculating, at the VSAT, a timing offset (T) to be applied to the arrival time to compensate for a time varying gateway-satellite-terminal propagation delay (T+T); setting a transmit instant as an end of the Tafter the arrival time; adding to the transmit instant a duration of X slots and a duration of (M-N) frames; and transmitting a burst, on the inroute from the VSAT, at the transmit instant. In the method, the calculating is based on computing T+Tfrom the satellite ephemeris vector, a gateway transmits the SFNP and receives the burst in the slot X within the frame number M of the inroute, and N is greater than or equal to M. A method and system for using ephemeris data for inroute timing is disclosed.

Multimodal inroute timing synchronization system

Various arrangements for monitoring and enforcing multi-tier throughput assignments in a network, such as satellite-based communication network, are presented. Throughput usage may be monitored on a beam-level, satellite-level, gateway-level, and system level. Throughput usage for individual satellite terminals may be aggregated and used to determine the throughput usage on an entity-by-entity basis. An entity can have one or more sub-entities to which throughput is allocated. Excessive throughput usage for higher-tier entities can result in throughput being restricted for satellite terminals associated with lower-tier entities.

Hierarchical multi-tier throughput assignment for a shared throughput satellite network

A method and system for determining inroute frame timing for a Very Small Aperture Terminal (VSAT) includes receiving an appointment to transmit, on an inroute, at a start of a slot X of a frame number M; establishing, at a VSAT, an arrival time of a super frame numbering packet (SFNP) including a satellite ephemeris vector and a frame number N; calculating, at the VSAT, a timing offset (T) to be applied to the arrival time to compensate for a time varying gateway-satellite-terminal propagation delay (T+T); setting a transmit instant as an end of the Tafter the arrival time; adding to the transmit instant a duration of X slots and a duration of (M&#x2212;N) frames; and transmitting a burst, on the inroute from the VSAT, at the transmit instant. In the method, the calculating is based on computing T+Tfrom the satellite ephemeris vector, a gateway transmits the SFNP and receives the burst in the slot X within the frame number M of the inroute, and N is greater than or equal to M. A method and system for using ephemeris data for inroute timing is disclosed.

Various arrangements for adaptive modulation of terminal to satellite communications are presented herein. A terminal may access a feedback data structure to perform a lookup based on a power level received as feedback. Based on performing the lookup using the power level in the feedback data structure, the terminal may determine an error correcting code rate to be used. The terminal may transmit one or more data packets to the satellite using the determined error correcting code rate without changing communication channel or requesting permission via the satellite to change the error correcting code rate.

On-the-fly inroute adaptive modulation

A method of switching from a first gateway within a plurality of first gateways to a second gateway in a network includes precaching configuration information on the second gateway, that is within the first gateways, prior to switch-over to the second gateway. The first gateway from which the second gateway is being switched is identified. The second gateway is configured in accordance with the configuration of the first gateway based on the precached configuration information prior to the switch-over to the second gateway. Data traffic from data applications using the network is replicated and sent to the first gateway and the second gateway. Bandwidths allocated to terminals in the network are frozen in association with the switch-over to the second gateway. The bandwidths allocated to the terminals in the network are unfrozen based at least in part on an indication of completion of the switch-over to the second gateway.

Gateway diversity switching

A system for scheduling prioritized traffic in a scrambled and coded multiple access (SCMA) system multiple terminals and a gateway. Each terminal is configured to receive packets from user devices and place the packets on various input queues. The packets are en-queued onto a plurality of output queues based on priority or service class. The terminal is further configured to detect one or more available SCMA slots within a frame of a communication system, and de-queue packets from the highest priority output queue onto the frame via one or more SCMA bursts. The terminal includes transceiver for transmitting/receiving frames of the communication system to/from the gateway. The terminals autonomously transmit SCMA bursts relative to each other.

Scheduling prioritized traffic in a scrambled coded multiple access (SCMA) system

Systems and methods are disclosed, and one includes determining a network resource state, based at least in part on a delay level of the network resource, determining a first priority user demand and a second priority user demand for the network resource, and upon the network resource state meeting a condition, adjusting an allocation of network resource bandwidth to the first priority user and an allocation of network resource bandwidth to the second priority user adjusting. The update of the allocation of network resource bandwidth to the first priority user is based at least in part on a combination of the first priority user demand, the second priority user demand, a first priority user guaranteed bandwidth, and a capacity of the network resource. The update of the allocation of network resource bandwidth to the second priority user is based at least in part on the adjusted allocation of network resource bandwidth to the first priority user.

System and method for maximizing throughput using prioritized efficient bandwidth sharing

Growing community of inventors

Middletown, MD, United States of America

John Leonard Border