ACARS messages over iridium
First Claim
1. A method for receiving ACARS messages, from a ground-based data provider, the method comprising:
- receiving, at a communication device aboard an aircraft, a plurality of Iridium Short Burst Data messages sent via an Iridium Short Burst Data Service, each of the plurality of Iridium Short Burst Data messages including at least a respective portion of an ACARS message and a respective added Iridium header, each of the respective added Iridium headers including an application indicator for indicating one of a plurality of applications to which the respective portion of the message pertains;
wherein if indicated by the respective added Iridium headers, combining the respective portions of one or more received Iridium Short Burst Data messages to form a combined ACARS message; and
delivering at least one of the at least a respective portion of the ACARS message and the combined ACARS message without the added Iridium header, to avionics equipment aboard the aircraft.
6 Assignments
0 Petitions
Accused Products
Abstract
A system in a method are provided for sending and receiving messages between a point located on the ground and a point located on an aircraft via an Iridium Short Burst Data Service. The messages may conform to Airlines Electronic Engineering Committee (AEEC) Specification 618. The messages may be ground-to-air messages or air-to-ground messages. The messages may be ACARS messages and at least some of the messages may have a length exceeding a maximum payload of the Iridium Short Burst Data Service. ACARS messages, which exceed the maximum payload of the Iridium Short Burst Data Service may be segmented and each of the segments may be sent in respective Iridium Short Burst Data messages via the Iridium Short Burst Data Service. When the separate Iridium Short Burst Data messages are received, the segments may be combined to reconstruct the ACARS message for delivery to an intended destination.
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Citations
13 Claims
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1. A method for receiving ACARS messages, from a ground-based data provider, the method comprising:
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receiving, at a communication device aboard an aircraft, a plurality of Iridium Short Burst Data messages sent via an Iridium Short Burst Data Service, each of the plurality of Iridium Short Burst Data messages including at least a respective portion of an ACARS message and a respective added Iridium header, each of the respective added Iridium headers including an application indicator for indicating one of a plurality of applications to which the respective portion of the message pertains; wherein if indicated by the respective added Iridium headers, combining the respective portions of one or more received Iridium Short Burst Data messages to form a combined ACARS message; and delivering at least one of the at least a respective portion of the ACARS message and the combined ACARS message without the added Iridium header, to avionics equipment aboard the aircraft. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communication device for use aboard an aircraft, the communication device comprising:
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at least one L-band transceiver that receives and sends Iridium Short Burst Data messages from and to a ground-based communication device; a header stripper that discards an Iridium header from a received Iridium Short Burst Data message including at least a portion of an ACARS message the Iridium header including an application indicator that indicates one of a plurality of applications to which the at least a portion of the message pertains, a message identifier that associates a plurality of message portions of the ACARS message with a particular message, and a segment offset that indicates a placement of each of the plurality of message portions with respect to the ACARS message; a message combiner that determines from the Iridium header whether to combine a plurality of message portions of one or more ACARS messages to form a combined ACARS message, the plurality of message portions being included in received Short Burst Data messages, each of the plurality of message portions including a respective one of the Iridium header, and each of the plurality of message portions of the received message having a same message identifier; and a communication interface to send that sends the combined ACARS message to avionics equipment aboard the aircraft. - View Dependent Claims (8, 9)
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10. A ground-based communication device that communicates with an aircraft-based communication device via an Iridium Short Burst Data Service, the ground-based communication device comprising:
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a communication interface, that receives from and sends to a ground-based processing device, ACARS messages; a header adder that adds an Iridium header to at least a portion of an ACARS message received from the ground-based processing device, the Iridium header including an application indicator for indicating one of a plurality of applications to which the at least a portion of the message pertains, a message identifier that associates a plurality of message portions of the ACARS message and a segment offset that indicates a placement of each of the plurality of message portions with respect to the ACARS message; and an L-band transceiver that sends an Iridium Short Burst Data message to an aircraft-based communication device, the Iridium Short Burst Data message including the at least a portion of the ACARS message and the added Iridium header. - View Dependent Claims (11, 12, 13)
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Specification