MINIMIZINING MESSAGE PROPAGATION TIMES WHEN BRIEF DATALINK INTERRUPTIONS OCCUR

摘要

A method for minimizing datalink message propagation time comprises determining whether a datalink TPDU ready for transmission requires an acknowledgement; transmitting the TPDU, starting a transport retry timer, and setting a transmission count to one, when acknowledgement is required; determining whether acknowledgement is received after transmitting the TPDU; determining whether the retry timer has expired if acknowledgement not received; determining whether a hold mode is in effect when the retry timer has expired; determining whether a transport inactivity timer has expired when the hold mode is in effect; determining whether the hold mode is still in effect when the inactivity timer has not expired; when the hold mode is no longer in effect, incrementing the transmission count by one; and retransmitting the datalink TPDU and restarting the retry timer, when the transmission count is less than a predetermined maximum value and the inactivity timer has not expired.

主权项

1. A method for minimizing datalink message propagation time when an interruption to datalink service occurs, the method comprising:
(a) determining whether a datalink transport protocol data unit (TPDU) ready for transmission requires an acknowledgement; (b) transmitting the datalink TPDU, starting a transport retry timer, and setting a transmission count to one, when an acknowledgement is required; (c) determining whether an acknowledgement is received after transmitting the datalink TPDU; (d) determining whether the retry timer has expired if the acknowledgement has not been received; (e) determining whether a hold mode is in effect when the retry timer has expired; (f) determining whether a transport inactivity timer has expired when the hold mode is in effect; (g) determining whether the hold mode is still in effect when the inactivity timer has not expired; (h) when the hold mode is no longer in effect, incrementing the transmission count by one; and (i) retransmitting the datalink TPDU and restarting the retry timer, when the transmission count is less than a predetermined maximum value and the inactivity timer has not expired.