Abstract: 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.

Abstract: Methods of antenna pointing and antenna assemblies implementing those methods are disclosed. An example method includes providing a user terminal antenna assembly including an antenna and an auto-peak device. The antenna includes a reflector, a subreflector, and a feed, the feed oriented relative to the reflector and the subreflector to produce a beam. The antenna further includes a tilt assembly to tilt the subreflector relative to the reflector and the feed. The method further includes providing a control signal to tilt the subreflector in a plurality of tilt positions to move the beam while measuring corresponding signal strength of a signal communicated via the antenna at each of the plurality of tilt positions. Additionally, the method includes selecting a tilt position from the plurality of tilt positions based on a measured signal strength, and providing the control signal to tilt the subreflector to the selected tilt position.

Abstract: An antenna includes a reflector and a waveguide assembly. The waveguide assembly includes a feed assembly and a support member that extends from behind the reflector to orient the feed assembly for direct illumination of the reflector. The waveguide assembly includes a first waveguide coupled to a first portion of a common waveguide, a second waveguide coupled to a second portion of the common waveguide, and a septum layer that includes a septum polarizer coupled between the common waveguide and the first and second waveguides.

Abstract: The described features generally relate to determining dynamic signal quality criteria for an installation of satellite terminals for communications in a satellite communications system. In particular, the signal quality criteria for an installation may be based on an identified position of the satellite terminal to be installed, and in some examples based on the positions and signal characteristics of neighboring satellite terminals that have already been installed. In some examples, a signal quality map may be generated for a service beam coverage area, based on predetermined transmission characteristics and/or measured transmissions from a number of satellite terminals served by a communications satellite. The generated signal quality map may then be used to determine a signal quality threshold for the installation of a satellite terminal being installed for communications in a satellite communications system.

Abstract: Systems and methods for mobile connectivity provisioning at an access network are described. The access network has a service connection to a service center that is external to the access network. The method includes receiving, from a mobile vehicle, an indication of a connection request for a device on the mobile vehicle. The connection request identifies the device using a media access control (MAC) address. The method includes generating a globally unique identifier (GUID) associated with the MAC address and transmitting a first message comprising the GUID to a network access terminal on the vehicle. The network access terminal redirects the connection request to the service center via a traffic connection. The redirected connection request includes the GUID. The access network receives an indication of a network service for the device from the service center; the indication identifies the device based on the GUID.

Abstract: Systems and methods are described for avoiding redundant data transfers using delta coding techniques when reliably and opportunistically communicating data to multiple user systems. According to embodiments, user systems track received block sequences for locally stored content blocks. An intermediate server intercepts content requests between user systems and target hosts, and deterministically chucks and fingerprints content data received in response to those requests. A fingerprint of a received content block is communicated to the requesting user system, and the user system determines based on the fingerprint whether the corresponding content block matches a content block that is already locally stored. If so, the user system returns a set of fingerprints representing a sequence of next content blocks that were previously stored after the matching content block.

Abstract: Methods, systems, and devices are described for communicating data from multiple data terminals to an aggregator terminal over a communication link having changing link conditions. In some embodiments, source data is received at multiple data terminals, each in communication with an aggregator terminal over a communication link. For example, during a live newscast, one mobile camera may receive live video of an event from a first position while another mobile camera receives live video of the event from a second position. For various reasons (e.g., as the cameras move) each communication link may experience independently changing link conditions. Each data terminal encodes the source data (or store source data for later encoding) as a function of its respective link conditions and transmits encoded source data over its respective communication link to the aggregator terminal.

Abstract: Approaches are described for providing quality of experience (QoE) driven in-transport communications services. For example, in-transit communications services are provided over a network to content consumption devices on one or more transport craft. During a measurement window, delivery of the in-transit communications services can be measured to obtain network-level delivery (NLD) measurements, and consumption of the in-transit communications services by one or more of the content consumption devices can be measured to obtain customer-level consumption (CLC) measurements. The NLD and CLC measurements can be used to compute a QoE score that indicates a delivered quality of service as perceived by one or more passengers of the one or more transport craft. The QoE score can be used to update stored service level data. The update can cause generation of one or more service level triggers, which can trigger automatic remedial action to address QoE-related conditions.

Abstract: One example includes a phased-array antenna system (10). The system includes antenna elements (16) each including an element adjustment circuit (24) and a radiating element (114). A beamforming network (14) receives a carrier signal and generates element carrier signals. A baseband DSP (22) generates a plurality of composite beamforming data signals associated with a respective one of the antenna elements (16) and is generated based on combining individual beamforming data signals. Each of the individual beamforming data signals is associated with a respective beam and is based on combining a data signal associated with the respective beam with an antenna weight associated with the respective beam and the respective one of the antenna elements (16).

Abstract: Antenna feed chains and methods are disclosed. An antenna feed chain, include a feed horn having a first cross-polarization performance over a solid angle of interest and a frequency band of interest and a polarizer having a second cross-polarization performance over the solid angle of interest and the frequency band of interest. The polarizer is coupled to the feed horn. The first cross-polarization performance of the feed horn compensates for the second cross-polarization performance of the polarizer over the solid angle of interest and the frequency band of interest.

Abstract: 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.

Abstract: The present invention relates to systems, apparatus, and methods of using usage data to determine the dependency structures of a web application, including dependency structures between follow-on objects of an initial object in a web transaction. In one embodiment, an input URL and associated dynamic response data are analyzed for such nested or dependent relationships. In further embodiments, analysis of these relationships are used to improve prefetching operations to lower overall page load times.

Abstract: Embodiments seek to improve web page loading time using server-machine-driven hint generation for based on client-machine-driven feedback. For example, client computers having page renderers are in communication with content servers and hinting processors. The hinting processors can use hinting feedback from multiple page rendering instances to automatically generate hints for optimizing loading and/or rendering of those pages. In some implementations, in response to page requests from the page renderers, content servers can request hints from hinting processors and send those hints to the requesting page renderers for use in improving the page loading experience. In other implementations, in response to page requests from the page renderers, content servers can instruct the requesting page renderers to contact an appropriate hinting processor and to retrieve appropriate hints therefrom for use in improving the page loading experience.

Abstract: Disclosed herein are systems and methods for allocating network capacity over a communication channel of a network. The systems and methods determine a transmission profile for each of a plurality of service flow types. The systems and methods then iteratively perform the following steps for allocating network capacity: selecting, for each service flow type, the network capacity allocation parameters in each service flow type's transmission profile associated with a current network capacity allocation cycle; determining amounts of data to transmit for each of the plurality of service flow types based at least in part on the selected network capacity allocation parameters; and transmitting, over the communication channel, the determined amounts for each of the plurality of service flow types for the current network capacity allocation cycle.

Abstract: Embodiments seek to protect privacy of potentially sensitive client resources in web transactions using crowd-disambiguation. Crowd-disambiguation machines can aggregate information about resources from multiple clients as resource fingerprints, and can use the fingerprints to provide crowd-sourced services in a privacy-protected manner. For example, embodiments can communicate a resource fingerprint as a fully ambiguated resource instance (FARI) and a partially disambiguated resource instance (PDRI). When one (or few) clients communicates the resource fingerprint, the identity of the resource remains obfuscated from the crowd-disambiguation machine. As more clients communicate fingerprints for the same resource (e.g., identified by the matching FARIs), respective, differently generated PDRIs of those fingerprints enable the crowd-disambiguation machine to resolve further portions of the resource, ultimately permitting the resource to be revealed and considered non-private (e.g.

Abstract: A removeable satellite antenna pointing tool can include a mounting gear releasably engageable with a pole that supports a satellite antenna. The removeable satellite antenna pointing tool can also include an azimuth gear subsystem housed in a frame and engaged with the mounting gear and a motor that drives the azimuth gear subsystem, wherein actuation of the motor causes the frame to rotate about the pole. The removeable satellite antenna pointing tool can further include a linear drive that controls an elevation of a control shaft engageable with a fixture attached to the satellite antenna. Actuation of the motor can change an azimuth of the satellite antenna and actuation of the linear drive can change an elevation of the satellite antenna.

Abstract: A system and method of the disclosure relates to structuring at least one resource of an application programming interface (API) for a server. In the method, a plurality of field-level elements may be defined. Each of the plurality of field-level elements may be associated with a respective property. Also, first and second message-level elements may be defined. The first message-level element may be based on a first field-level element of the plurality of field-level elements, and the second message-level element may be based on the first field-level element. The API may be associated with a first resource having properties resolved based on at least the first and second message-level elements.

Abstract: Methods, systems, and devices are described for antenna positioning with an eccentric tilt pointing mechanism. For example, a system in accordance with the present disclosure may include a base structure and an intermediate structure that is rotatably coupled with the base structure about a first axis (e.g., a tilt axis). The system may also include a positioning system that is coupled with the intermediate structure and configured to orient an antenna boresight about at least two angular degrees of freedom with respect to the intermediate structure (e.g., in an elevation-over-azimuth configuration). The system may also include an actuator between the base structure and the intermediate structure that is configured to set, change, or maintain an angle between the base structure and the intermediate structure, which, in some examples, may include a rotation of an eccentric element based on a predicted path of a target device.

Abstract: 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.

Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.