Patent ID: 7516135
Filing Date: 2009-04-07
Classification: H04L,Y10S

Abstract:
1. A method performed by a data distribution device, the method comprising: implementing a data pull service in response to a subscription request from a data acquisition device, the data pull service having a first refresh interval, the first refresh interval indicating when the data distribution device should be contacted regarding data responsive to the subscription request; determining whether new data is available; if new data is available, determining whether the new data is responsive to the subscription request; if the new data is responsive to the subscription request, determining an interval at which responsive new data is becoming available; determining a second refresh interval for the data pull service based at least on the determined interval, the second refresh interval indicating when the data distribution device should be contacted regarding data responsive to the subscription request; and generating a message for the data acquisition device, the message comprising the second refresh interval.