随着社会的发展和市场的推动,有线宽带技术的已经得到了长足的发展,但是依赖于线缆的特性影响了其进一步的普及。在这种情况下,人们提出了WiMAX固定无线宽带接入技术,与有线宽带接入技术相比,WiMAX 具有建设成本低、项目启动快、建设周期短、维护费用低等诸多优势。介绍、分析了WiMAX体系结构及其关键技术。 With the development of society and the promotion of the market, cable broadband technology has made great strides, but its dependence on the characteristics of the cable has affected its further popularization. Under such circumstances, people have proposed WiMAX fixed wireless broadband access technology. Compared with wired broadband access technology, WiMAX has many advantages such as low construction cost, quick start-up, short construction period and low maintenance cost. Introduces and analyzes the WiMAX architecture and its key technologies.