Call Setup Mechanism Based on GLR in 3G Network

Aiming at the problem of the big system cost of the call delivery process in the 3G network,this paper proposes an improved call setup mechanism,which takes the local routing and caching.The present call setup mechanism is optimized.Simulation results show that there is an optimal threshold to balance location update and terminal paging cost to obtain the minimum total cost of location management,and the optimized mechanism can reduce the system cost of the call delivery process effectively.