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简要介绍了GSM（GlobalSystemforMobileCommunications）切换技术、切换类型，并在此基础上分析了与切换性能相关的重要参数的选择对网络质量的影响，论述了切换技术在网络优化中的作用，最后，给出在工程实践中设置切换关系需注意的问题。
This paper briefly introduces the GSM (Global System for Mobile Communications) handover technology and the type of handover. On this basis, it analyzes the impact of the selection of important parameters related to the handover performance on the network quality, and discusses the role of handover in network optimization. Finally, In engineering practice to set the switching relationship should pay attention to the problem.