Patent ID: 7590063
Filing Date: 2009-09-15
Classification: H04L

Abstract:
1. A method for managing data flow in a system with simultaneous scheduling of aperiodic messages and periodic transmissions on a common bus, comprising the steps of: (a) using predefined periodic transmission times, calculating data transition points between periodic and aperiodic message transmissions intervals for a hyperperiod of interest in said system; (b) using said data transition points to produce a series of aperiodic latency estimation inflection points; (c) collecting data points of aperiodic message transmissions for the hyperperiod of interest in said system; (d) estimating the aperiodic latency probability at an inflection point in the hyperperiod of interest as being equal to the number of sample data points less than or equal to the said inflection point divided by the total number of collected aperiodic latency sample data points, said data points forming a data point plot that is assumed to be linear between said aperiodic latency inflection points; and (e) transmitting the aperiodic messages based, at least in part, on the estimated aperiodic latency probability.