Patent ID: 8958415
Filing Date: 2015-02-17
Classification: H04W

Abstract:
1. A method in a network node of a first cellular communication system supporting packet-switched services for handling signaling transported between the first cellular communication system and a second cellular communication system supporting circuit-switched services, the method comprising: receiving a message transmitted from the second cellular communication system and recognizing that the message comprises congestion-related information that is indicative of the present congestion status of the second cellular communication system; and updating the network node of the first cellular communication system with the congestion-related information; thereby enabling a user equipment for which the congestion-related information is accessible via the network node or the network node of the first cellular communication system to control Circuit-switched Fallback (CSFB) attempts towards the second communication system on the basis of the congestion-related information prior to initiating any access signaling associated with the CSFB attempts.