Hughes Network Systems, LLC

The Directv Group, Inc.

Other

Jack Rozmaryn

Kent Pellerin

Lin-Nan Lee

A Roger Hammons, Jr

Bassel F Beidas

Murali Regunathan

Stan Kay

Hesham El-Gamal

Andrew MacDonald

Douglas M Dillon

Frank Kelly

Gabriel L Olariu

A system and method are disclosed for estimating the location of a satellite terminal. The terminal is selected from among a plurality of terminals, and one or more position estimates are generated for a satellite which provides service to the terminal. The position estimated can be generated, for example, by performing a first one or more iterative grid searches over a plurality of potential position estimates for the satellite. A location estimate is subsequently generated for the terminal by performing a second one or more iterative grid searches over a plurality of potential location estimates for the terminal.

Estimating terminal location in a satellite communication system

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.

Systems and methods for real-time signal validation are disclosed. In an example embodiment, a subset of terminals in a peer group of satellite terminals is determined. Operational statistics of the satellite terminals in the subset of terminals is measured. Operational statistics of each of the satellite terminals in the subset of terminals is compared to a prior measurement of the same operational statistics. An offset between a current measurement of the operational statistics and the prior measurement of the same operational statistics is determined. An average offset of the current measurement of the operational statistics and the prior measurement of the same operational statistics is determined for the subset of terminals. The average offset for the subset of terminals is merged with a previously determined peer group operational statistic. A signal validation of a terminal is performed using an updated deviation value.

Real-time signal validation method and system

Systems and methods for peer group diagnosis detection are disclosed. In an example embodiment, a beam profile including a plurality of satellite beam characteristics is determined. A peer group of satellite terminals is determined. Terminal profiles with terminal characteristics for the satellite terminals in the peer group are determined. A normalized baseline profile including normalized terminal characteristics for the peer group is determined. Measured operational statistics of the satellite terminals in the peer group are received and converted into normalized operation statistics using the terminal profiles and the normalized baseline profile. Normalized peer group operational statistics including a mean and a standard deviation of normalized operational statistics are determined. A normalized deviation of the normalized operational statistics is determined for each satellite terminal. The normalized deviations for each satellite terminal are compared to a threshold deviation. Satellite terminals are diagnosed as good, degraded, or bad.

Peer group diagnosis detection method and system

Terminal diagnosis self correction is disclosed. A service inquiry is received regarding a problem with a terminal from a user. Terminal statistics are obtained remotely from the terminal and stored in a site diagnosis log. An initial diagnosis is determined with a site diagnostic tool using the terminal statistics. The initial diagnosis is stored in the site diagnosis log. A technician is dispatched to repair the terminal. Terminal statistics are obtained locally at the terminal and stored in an onsite validation tool log. An onsite diagnosis is determined using an onsite validation tool and stored the onsite validation tool log. The initial and onsite diagnoses are compared. In response to a difference between the initial and onsite diagnoses, the remotely and locally obtained terminal statistics are compared. The site diagnostic tool is adjusted based on the initial diagnosis, the onsite diagnosis, and the remote and local terminal statistics.

Terminal diagnosis self correction method and system

Systems and methods for problem signature terminal diagnosis are disclosed. In an example embodiment, measured operational statistics of a satellite terminal of a peer group of satellite terminals are received and converted into normalized operation statistics. Normalized deviations of the operational statistics are determined and compared to the threshold deviations. A diagnosis zone corresponding to a problem signature is determined based on the normalized deviations by determining that coordinates of the normalized deviations are within the diagnosis zone, comparing a ratio based on the normalized deviations to a threshold ratio, or comparing a differential of the normalized deviations to a threshold differential. A satellite terminal is diagnosed with a problem defined by the problem signature based on the determined diagnosis zone.

Problem signature terminal diagnosis method and system

A communications system includes a base station that is configured to transmit a signal that is modulated according to a predetermined modulation scheme and an orthogonal frequency division multiplexing scheme, wherein the signal is encoded using space-frequency coding. The base station includes a plurality of multiple-input multiple-output (MIMO) transceivers. The system includes a terminal that is configured to receive the modulated signal. The above arrangement is particularly applicable to providing multichannel multipoint distribution services (MMDS) over a radio communications system.

Space-time coded OFDM system for MMDS applications

An approach is provided for managing bandwidth in a data network. Capacity is allocated on a communication channel, which can be utilized for transporting data traffic or support network administrative functions (e.g., ranging), for a terminal to transmit data over the communication channel. In anticipation of the terminal having to transmit additional data, additional capacity is allocated on the communication channel for the terminal prior to receiving a request for bandwidth by the terminal. The anticipatory allocation is determined according to loading of the data network. This approach as particular applicability to shared capacity systems, such as a satellite communication system.

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Silver Spring, MD, United States of America

Jack Rozmaryn