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自适应调制编码(AMC)是高速下行分组接入(HSDPA)的关键技术之一,它可以根据信道质量情况的改变调整调制与编码方式,从而合理地利用和分配系统资源。文中概述了AMC技术原理、特点、结构和流程,对基于TD-SCDMA的AMC技术性能进行仿真和分析。通过仿真结果,分析了在不同情况下该编码的主要技术特点,并做出了相关的结论。
Adaptive Modulation and Coding (AMC) is one of the key technologies of High Speed Downlink Packet Access (HSDPA). It can adjust the modulation and coding mode according to the change of channel quality, so that the system resources can be rationally used and allocated. In this paper, the principle, characteristics, structure and flow of AMC are summarized. The performance of AMC based on TD-SCDMA is simulated and analyzed. Through the simulation results, the main technical characteristics of the code under different conditions are analyzed and the relevant conclusions are drawn.