METHOD AND ARRANGEMENTS FOR CONGESTION CONTROL FOR INTERWORKING COMMUNICATION NETWORKS

摘要

A method for allowing distribution of congestion related information between a cellular communication system supporting circuit switched services and a cellular communication system supporting packet switched services. A message destined for the packet switched communication system is identified at the circuit switched communication system, and congestion related information, indicating the present congestion status of the circuit switched communication network is included into the message. The message is then forwarded to a network node of the packet switched communication system, where either a user equipment and/or the network node of the first cellular communication system can control Circuit Switched Fallback (CSFB) attempts towards the second communication system on the basis of the congestion related information prior to having to initiate any access signaling associated with the CSFB attempts.