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R.Jain在移动通信中利用前向指针技术减少对HLR的访问和系统代价．本文建立的理论模型对这种方法的性能进行了分析，呼叫移动比高时使用指针策略反而会增加系统开销．针对这个问题．本文提出一种自适应方法，仿真结果表明该方法随着呼叫移动比变化可自动调整到最佳的最大指针链长度，并能在呼叫移动比高时自动停止使用指针策略．
R.Jain uses forward pointer technology in mobile communications to reduce access to HLR and system costs. The theoretical model established in this paper analyzes the performance of this method. When the call moves higher than pointer, it will increase the system overhead instead. for this problem. In this paper, an adaptive method is proposed. The simulation results show that this method can automatically adjust to the best maximum pointer chain length as the call moving ratio changes, and can automatically stop using the pointer strategy when the call moving ratio is high.