Power spectral density control using AIS and spreading in an aeronautical SATCOM terminal using a low profile antenna
First Claim
1. A method comprising:
- sending a request from an aircraft to obtain bandwidth with an initial set of transmit parameters;
initiating a communication session between the aircraft and at least one satellite using a first set of transmit parameters;
monitoring aircraft and/or environmental conditions capable of affecting transmit/receive properties during the communication session;
determining a change in uplink power at a time interval equal to a transmit frame length;
determining a maximum allowable transmission output power based, at least in part, on governmental regulations and the monitored aircraft and/or environmental conditions; and
adjusting one or more transmit parameters from the first set of transmit parameters during the time interval to maintain aircraft transmission output power below the maximum allowable transmission output power.
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Accused Products
Abstract
Power spectral density in an aeronautical satellite communication system is controlled through the use of adaptive inroute selection and spreading. Once a communication session has been established between the aircraft and the satellite, environmental conditions and aircraft conditions are monitored to detect events capable of affecting transmit/receive properties during the communication session. A maximum allowable transmission output is determined based, at least in part, on governmental regulations and the conditions being monitored. One or more transmit parameters are adjusted during the time interval in order to maintain transmission output power of the aircraft terminal below the maximum allowable transmission output power.
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Citations
20 Claims
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1. A method comprising:
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sending a request from an aircraft to obtain bandwidth with an initial set of transmit parameters; initiating a communication session between the aircraft and at least one satellite using a first set of transmit parameters; monitoring aircraft and/or environmental conditions capable of affecting transmit/receive properties during the communication session; determining a change in uplink power at a time interval equal to a transmit frame length; determining a maximum allowable transmission output power based, at least in part, on governmental regulations and the monitored aircraft and/or environmental conditions; and adjusting one or more transmit parameters from the first set of transmit parameters during the time interval to maintain aircraft transmission output power below the maximum allowable transmission output power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
at least one processor configured to; send a request from an aircraft to obtain bandwidth with an initial set of transmit parameters; initiate a communication session between the aircraft and at least one satellite using a first set of transmit parameters; monitor aircraft and/or environmental conditions capable of affecting transmit/receive properties during the communication session; determine a change in uplink power at a time interval equal to a transmit frame length; determine a maximum allowable transmission output power based, at least in part, on governmental regulations and the monitored aircraft and/or environmental conditions; and adjust one or more transmit parameters from the first set of transmit parameters during the time interval to maintain aircraft transmission output power below the maximum allowable transmission output power. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification