US 12,756,457 B2Granted

Inroute stream error rate shedding

AssigneeHughes Network Systems, LLC

InventorsYeqing Tang, Raghu Narasimhan, Francis Selvadoss, Venkat Ganesan

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Abstract

Techniques are described herein for intelligent shedding of inroutes determined to have high burst error rates. Embodiments operate in context of a multi-spot beam satellite communication system that uses time-division multiple access (TDMA) communication protocols and inroute groups. Burst error rates of inroutes can be monitored over time to identify bad inroutes. Each bad inroute can be shut down and quarantined. After a predetermined amount of time, one or more selected terminals can be redistributed to the bad inroutes, and the burst error rates of those inroutes can be monitored again to determine whether those inroutes should remain quarantined. If an inroute is no longer bad, it can be removed from quarantine and returned to an inroute group list. If the inroute is still bad, it can be periodically re-checked until it ultimately improves, is permanently quarantined, etc.

Claims20

Dependent claims

A method for automatic inroute shedding in a satellite communication system, the method comprising:

monitoring monitor-time burst error rates of a plurality of inroutes of the satellite communication system;
identifying, based on the monitoring, a set of bad inroutes as those of the plurality of inroutes that have burst error rates exceeding a predetermined threshold;
and
for each bad inroute of the set of bad inroutes:
shutting down the bad inroute by migrating an impacted set of user terminals from the bad inroute to one or more others of the plurality of inroutes that are not part of the set of bad inroutes, and quarantining the bad inroute, wherein the impacted set of user terminals is a subset of a plurality of user terminals of the satellite communication system that is serviced by the bad inroute;
testing the bad inroute, subsequent to elapsing of a predefined shutdown time, by redistributing a selected user terminal to the bad inroute and monitoring a test-time burst error rate of the bad inroute;
determining, based on the testing, that the test-time burst error rate of the bad inroute no longer exceeds the predetermined threshold;
and
restoring the bad inroute, based on the determining, by removing the bad inroute from quarantine.

6 more elements

An inroute group manager (IGM) of a ground network of a satellite communication system, the IGM comprising:

a set of processors;
and
a non-transitory memory having processor-readable instructions stored thereon, which, when executed, cause the set of processors to perform steps comprising:
monitoring monitor-time burst error rates of a plurality of inroutes;
identifying, based on the monitoring, a set of bad inroutes as those of the plurality of inroutes that have burst error rates exceeding a predetermined threshold;
and
for each bad inroute of the set of bad inroutes:
shutting down the bad inroute by migrating an impacted set of user terminals from the bad inroute to one or more others of the plurality of inroutes that are not part of the set of bad inroutes, and quarantining the bad inroute, wherein the impacted set of user terminals is a subset of a plurality of user terminals of the satellite communication system that is serviced by the bad inroute;
testing the bad inroute, subsequent to elapsing of a predefined shutdown time, by redistributing a selected user terminal to the bad inroute and monitoring a test-time burst error rate of the bad inroute;
determining, based on the testing, that the test-time burst error rate of the bad inroute no longer exceeds the predetermined threshold;
and
restoring the bad inroute, based on the determining, by removing the bad inroute from quarantine.

9 more elements

Dependencies are inferred from the claim text.