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介绍了无线城域网空中接口规范IEEE802.16标准,重点分析了媒体访问控制(MAC)层和物理层中的关键技术,以及标准中的QoS保证机制。
The IEEE802.16 standard for air interface specification of wireless MAN is introduced, and the key technologies in the MAC layer and physical layer are analyzed emphatically, and the QoS guarantee mechanism in the standard.