An Improved Approach for Call Setup in PCS Networks

When deliver incoming calls to users visiting their nonresident Visitor Location Register (VLR) coverage, Personal Communication Service(PCS) networks will create significant signaling and database access load. In this paper, we propose an improved cache scheme to reduce signaling cost, delivery delay and access load during calls setup. An analytical model is applied to formulate the cost of the improved scheme. Our study indicates that the proposed scheme can significantly reduce the network costs compared with the traditional call setup approach.