US 2012/0257533 A1 · ENHANCED DATA LINK COMMUNICATION OVER IRIDIUM

Abstract

A method to reduce latency in a data link communication is provided. The method includes compressing a data packet to be uplinked from a ground station to an aircraft communications addressing and reporting system (ACARS) in an aircraft and determining a packet size of the data packet. The aircraft communications addressing and reporting system is configured to receive packets having a packet size less than or equal to a first threshold packet size. An Iridium router based unrestricted digital inter-working connectivity solution data service is implemented to uplink the compressed data packet if the packet size exceeds a second threshold packet size. A short burst data service is implemented to uplink the compressed data packet if the packet size is less than or equal to the second threshold packet size.

Claims20

Dependent claims

A method to reduce latency in a data link communication, the method comprising:

compressing a data packet to be uplinked from a ground station to an aircraft-data-link device in an aircraft, the aircraft-data-link device configured to receive packets having a packet size less than or equal to a first threshold packet size;
determining a packet size of the compressed data packet;
when the packet size exceeds a second threshold packet size, transmitting the compressed data packet over an uplink via a high bandwidth data service;
and
when the packet size is less than or equal to the second threshold packet size, transmitting the compressed data packet over the uplink via a low bandwidth data service.

2 more elements

A system to enhance data link communication, the system comprising:

an aircraft-data-link device onboard an aircraft, the aircraft-data-link device configured to receive data packets having a packet size less than or equal to a first threshold packet size;
a transceiver onboard the aircraft, the transceiver communicatively coupled to the aircraft-data-link device and configured to transmit and receive via one of a first data service or a second data service, the transmission being based on the packet size of the data packet, the transceiver including a processor to execute software to:
decompress an uplinked data packet;
and
if the decompressed uplinked data packet has a packet size greater than the first threshold packet size, multi-block the decompressed uplinked data packet into a plurality of blocks, each block being less than the first threshold packet size, wherein the transceiver sequentially sends the plurality of blocks to the aircraft-data-link device.

2 more elements

Dependencies are inferred from the claim text.

Enhanced data link communication over iridium

Life of this patent

Enhanced data link communication over iridium

Life of this patent

Abstract

Claims20