Patent ID: 8018909

Claim:
An arrangement within a communication system including a number of radio network control means each controlling a number of base stations, to which a number of mobile stations are attached, comprising: functional server nodes forming part of a conglomerate, or pool, of functional server nodes in common controlling said number of radio network control means, each functional server node being able to control any, or a number of, said radio network control means wherein the functional server nodes support transfer/redistribution of mobile stations or mobile station contexts between each other without interrupting the connection of the mobile station; and message control means for transferring a mobile station from a first-current-functional server node to a second-target-functional server node, the message control means of said first-current-functional server node are adapted to generate an area update or transfer acceptance message comprising an identification of the first-current-functional server node, an identification of the second-target-functional server node and a transfer indication, and to send said area update or transfer acceptance message to the mobile station.