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介绍了峰窝系统、低功率系统、无线ＬＡＮ／ＷＡＮ、卫星系统等个人移动通信系统，以及ＩＭＴ—２０００、ＰＣＳ等第三代数字移动通信系统，并展望其未来的发展方向。
The personal mobile communication systems such as cellular system, low power system, wireless LAN / WAN and satellite system, as well as the third generation digital mobile communication system such as IMT-2000 and PCS are also introduced. The future development of the system is also discussed.