US 9,813,147 B2
Systems and methods for automatically re-ranging a satellite terminal
Matthew Benjamin Baer, Gaithersburg, MD (US); Yezdi Antia, North Potomac, MD (US); and Javier Sanchez, Germantown, MD (US)
Assigned to Hughes Network Systems, LLC, Germantown, MD (US)
Filed by Hughes Network Systems, LLC, Germantown, MD (US)
Filed on Jan. 5, 2015, as Appl. No. 14/589,637.
Prior Publication US 2016/0195618 A1, Jul. 7, 2016
Int. Cl. H04B 7/185 (2006.01)
CPC H04B 7/18543 (2013.01) [H04B 7/18513 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system, comprising:
a satellite comprising an inroute channel and an outroute channel;
a terminal configured to receive an outroute signal from the satellite on the outroute channel and transmit an inroute signal to the satellite on the inroute channel;
one or more processors; and
one or more non-transitory computer-readable mediums operatively coupled to at least one of the one or more processors and having instructions stored thereon that, when executed by at least one of the one or more processors, cause at least one of the one or more processors to:
monitor the quality of the outroute signal using at least a first filter that tracks a carrier to noise ratio of the outroute signal over time;
monitor the quality of the inroute signal using at least a second filter that tracks a power error bias of the inroute signal over time, wherein the power error bias is tracked using at least a baseline power transmission setting established for the terminal on the inroute channel during a first ranging process;
determine if there has been a degradation in the monitored inroute signal quality or the monitored outroute signal quality, wherein a degradation in the monitored outroute signal quality is determined using at least a comparison of the first filter and an outroute signal quality filter determined using at least a carrier to noise ratio of the outroute signal during the first ranging process; and
automatically cause the terminal to perform a second ranging process based on the determination.