Traffic congestion in radio network controllers

摘要

Method and Radio Network Controller (RNC) for reducing traffic congestion, wherein establishment of at least one PS connection from a user with certain QoS priority and throughput is requested to the RNC, which handles users' data traffic in a User Plane and signalling traffic in a Control Plane. The RNC measures load in the User Plane, both in Downlink and Uplink, and additionally in the Control Plane and then compares the measured values of traffic load with at least one load threshold configured by the mobile network operator. Depending upon the result of the comparison in terms of load, the RNC can reduce the User Plane load by reducing data traffic carried over established PS connections of the users with the lowest priority and the highest throughput and, in the Control Plane, said RNC can reduce the completed establishments of new PS connections for the users with the lowest priority.