Satellite path calibration
AssigneeHughes Network Systems, LLC
InventorsBin Chen, James Jehong Jong, Mostafa Tarrah
Life of this patent
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Abstract
A method for setting a calibration signal power, the method including: transmitting a calibration-modulated wave (CMW) signal at a frequency slot; receiving a power measurement of the CMW signal; calculating a calibration correction factor for the frequency slot based on the power measurement; and adjusting a transmission power of the CMW signal at the frequency slot based on the calibration correction factor. A method for switching over a control channel and a voice channel from an old sub-band to a new-sub-band, the method including: switching over control channel and voice channel among multiple GW components and satellite payload; predicting switchover time to reduce control channel and voice channel outage time during switchover.
Claims20
A method for setting a calibration signal power, the method comprising:
- transmitting a calibration-modulated wave (CMW) signal at a frequency slot;
- receiving a power measurement of the CMW signal;
- calculating a calibration correction factor for the frequency slot based on the power measurement;
- and
- adjusting a transmission power of the CMW signal at the frequency slot based on the calibration correction factor.
A system to set a calibration signal power, the system comprising:
- a root raised cosine filter to filter a CMW signal;
- a transmitter to transmit a calibration-modulated wave (CMW) at a frequency slot comprising frequency bins;
- a receiver to receive a power measurement of the CMW signal;
- at least one processor configured to execute a Global Resource Management (GRM) module to calculate a calibration correction factor for each of the frequency bins of the frequency slot based on the power measurement received at the receiver;
- and
- the at least one processor further configured to execute a Traffic Control Subsystem (TCS) module to adjust a transmission power of the CMW signal at a channel unit at each of the frequency bins of the frequency slot based on a respective calibration correction factor calculated at the GRM,
- wherein the CMW signal is used for setting a transmission power for a Broadcast Common Control Channel.
Dependencies are inferred from the claim text.