Patent ID: 7929430
Filing Date: 2011-04-19
Classification: G08G,H04L

Abstract:
1. A congestion control method for a congestion control access gateway that interfaces between a broadband convergence network and a ubiquitous sensor network including sensors and terminals, the method comprising: receiving data from the ubiquitous sensor network; when receiving the data, determining whether or not a congestion situation has occurred; when a congestion situation has occurred, detecting the congestion situation based on data received in the congestion situation; broadcasting a congestion notification message and a congestion control message in response to the detection of the congestion situation; generating a congestion situation detection profile based on the data received in the congestion situation to determine a reason as a result of the congestion situation being detected; performing a first priority queuing of the received data wherein the received data is ordered in queue based on both the congestion situation detection profile and predetermined service classes, and a second priority queuing when no congestion situation has occurred; determining a first destination of the data, which has been subjected to the first priority queuing, using the congestion situation detection profile, and routing the data to a corresponding service; when no congestion situation has occurred, performing situation detection based on the received data and generating a situation detection profile as a result of the situation detection, wherein the situation detection profile indicates that the access gateway interfaces between the broadband convergence network and the ubiquitous sensor network including the sensors and the terminals without the occurrence of the congestion situation; and determining a second destination of the received data using the situation detection profile, which has been subjected to the second priority queuing and routing the received data to a corresponding service, and wherein the first destination is different from the second destination.