Handover in a broadband cellular ATM access system

Abstract

Handover is one of the key aspects of future broadband pico-cellular wireless ATM-systems allowing terminal mobility. In this paper, we investigate the specific handover problems arising in such a system. Some examples of handover procedures are investigated in detail by means of message sequence charts. Special attention is given to the requirements which the execution of a handover puts to connection admission control functions. Furthermore, the routing of signalling messages is discussed.