获取 WIFI 相关信息，方便用户做相关处理，用于手机wifi 相关信息(WIFI access to relevant information, user-friendly to do related processing, for mobile wifi information)

LTE系统下行信道matlab代码，能够实现下行信道系统信息的解码和频点的获取。(The downlink channel matlab code of the LTE system can implement downlink channel system information decoding and frequency point acquisition.)