Handover Switching Scenarios in UMTS
Ioannis Modeas, Georgios F. Nikolaidis, E. Zervas · 1996
One of the most essential and time critical mobility function in a cellular mobile system is handover. The main function performed during handover is the connections'' switching. In the system under consideration, this function is allocated in an additional network node, a mobility server, attached to a standard B-ISDN switch. In this paper we will discuss various scenarios for the implementation of the switching function, using inband signalling. The main focus is on the hard handover case. At the end, we will discuss how the proposed scenarios could be extended in order to cope with the additional requirements of soft handover.