无线网结构是无线通信研究的内容之一。近年手提无线终端的新功能和无线个人通信业务的发展,使有线数据和信息业务扩展到移动无线用户,由于移动业务有无线频谱的限制,未来的无线系统将需要实用有效的结构和协议,来提供支持宽带业务所需的高容量。美国有学者提出了一种改进的分层微小区/宏小区的结构。在此结构中,微小区能再用宏小区的频谱但不减少宏小区的容量。此外,与信道借用方案不同,信道借用只在邻近小区 Wireless network structure is one of the research contents of wireless communication. In recent years, the new functions of portable wireless terminals and the development of wireless personal communication services have enabled wired data and information services to be extended to mobile wireless users. Since mobile services have limited radio spectrum, future wireless systems will need practical and effective structures and protocols to Provide the high capacity needed to support broadband services. Some scholars in the United States have proposed an improved hierarchical micro / macro cell structure. In this structure, the microcell can reuse the spectrum of the macrocell without reducing the capacity of the macrocell. In addition, unlike the channel borrowing scheme, channel borrowing is only available in neighboring cells