LTE ：
http://search.download.csdn.net/search/3GPP%E9%95%BF%E6%9C%9F%E6%BC%94%E8%BF%9B%E6%8A%80%E6%9C%AF%E5%8E%9F%E7%90%86%E4%B8%8E%E7%B3%BB%E7%BB%9F%5Efield%3D%2A/2