说明：  信道均衡 目的和原理 MLSE、 DFE、 ZF/LMMSE均衡 干扰抵消 原理 导频干扰抵消和多码道干扰抵消 HSDPA简介 主要信道 接收机结构
(Channel equalization purposes and principles of MLSE, DFE, ZF/LMMSE equalizer pilot interference cancellation principle of interference cancellation and multi-code channel interference cancellation receiver HSDPA channel structure of the main profile)