...地部件(Ancillary Terrestrial Component, ATC) 提供移动卫星连接，二者都使用一种公共主流无线空中接口(wireless air interface)。
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A kind of wireless ATM air interface cell format was defined, and a cell protection field at transmission convergence sub layer of wireless physical layer was designed.
定义了一种无线at M空中接口信元格式，设计了无线at M物理层中传输会聚子层信元保护域。
This article briefs the broad-band wireless access system, and systematically details the IEEE standard 802.16.1by giving its system model, air interface proto-cols of MAC and PHY layer.
文章简介了宽带无线接入系统，着重对美国IEEE标准802.16.1系统进行了介绍，给出其系统模型及其空中接口MAC、PHY层协议内容。
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