Viasat, Inc.

Brian T Sleight

William F Sullivan

Corey Ryan Johnson

Thomas Duncan Lookabaugh

Meherwan Polad

James N Esserman

John Hai O'Neill

Donald C Wilcoxson

Daniel Chester

Changping Li

Nirmalkumar Velayudhan

Clifford K Burdick

Joshua G Slater

Kenneth V Buer

David H Irvine

Philip A Lampe

Timothy J Martin

Jim Esserman

Arthur Senyue Loh

David H Schmitz

Embodiments relate to systems and methods for modifying the playback rate of media data in order to improve craft-based media playback system performance during handover events in a communication system.

Variable playback rate of streaming content for uninterrupted handover in a communication system

Methods, systems, and devices are described for providing network access services to mobile users via multi-user network access terminals over a multi-beam satellite system. Quality-of-service (QoS) is controlled for the mobile devices at a per-user level according to user-specific traffic policies. Mobile users may be provisioned on the satellite system according to a set of traffic policies based on their service level agreement (SLA). System resources of the satellite may be allocated to mobile users based on the demand of each mobile user and the set of traffic polices associated with each mobile user, regardless of which multi-user network access terminal is used to access the system. Dynamic multiplexing of traffic from fixed terminals and mobile users on the same satellite beam can take advantage of statistical multiplexing of large numbers of users and on different usage patterns between fixed terminals and mobile users.

Satellite network service sharing

The described features generally relate to receiving one or more positioning signals at a satellite terminal during installation of the satellite terminal at a customer premises, and providing position-based access to a satellite communications system based on a satellite terminal installation position determined from the received positioning signals. The determined installation position of the satellite terminal may then be employed for various network access techniques, such as providing access to the satellite communications system, providing position-based content, or restricting content via the satellite communications system based on the determined installation position. In some examples the determined installation position of the satellite terminal may be used to approximate a propagation delay between the satellite terminal and various devices of the satellite communications system, such as a serving satellite and/or a serving gateway, to improve device synchronization and radio frequency spectrum resource utilization.

Position-based access to satellite networks for satellite terminals

Methods, systems, and devices are described for providing network access services to mobile users via mobile terminals over a satellite system. In embodiments, dynamic multiplexing of traffic from fixed terminals and mobile users on the same satellite beam can take advantage of statistical multiplexing of large numbers of users and on different usage patterns between fixed terminals and mobile users. In embodiments, quality-of-service (QoS) is controlled for mobile devices at a per-user level. Mobile users may be provisioned on the satellite system according to a set of traffic policies based on their service level agreement (SLA). System resources of the satellite may be allocated to mobile users based on the demand of each mobile user and the set of traffic polices associated with each mobile user, regardless of which mobile terminal is used to access the system.

Techniques for improving data rates at mobile terminals that are subject to periodic channel interruptions in a beyond-line-of-sight communication system are disclosed, including improved encoding and decoding systems that identify blockages and modify receiver operation during blockages to reduce data errors. In certain embodiments, encoding, symbol mapping, interleaving, and use of unique periodic identifiers function to enable a series of packets that may be received in a blockage impaired channel with reduced errors.

Cyclical obstruction communication system

Embodiments relate to systems and methods for modifying the transmission rate of media data in order to improve craft-based media playback system performance during handover events in a communication system.

Variable size linear video content buffers for uninterrupted handover in a multi-beam satellite system

Embodiments relate to methods and systems for managing media content distribution rights to a media client on a craft to ensure that the distribution of media content items is consistent with media content distribution rights.

Systems and methods for managing content distribution to an in-transit media system

Systems and methods for aligning a satellite antenna mounted on a mobile platform to the platform. At each of several arbitrary orientations, a first directional vector is determined from the antenna to a satellite. For each orientation, an alias transformation is performed to transform the first vector having coordinates defined with respect to a first reference frame to a second vector having coordinates defined with respect to a second reference frame. A third vector is determined based on the orientation of the antenna after peaking the antenna. A rotation matrix is derived from the collection of second and third vectors. An estimate of the rotational offset of the satellite antenna with respect to the platform is determined based on the rotation matrix. The rotational offset is applied to the attitude of the platform to accurately point the antenna to the satellite.

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Carlsbad, CA, United States of America

Brian T Sleight