移动通信像所有的无线电通信一样，要使用无线电频率。而无线电频率是人类有限的宝贵资源，我们必须像对待土地、水源、矿藏等资源一样，珍惜、爱护资源，有效利用资源，这才是我们对国家负责的态度。t要有效利用资源，就必须积极采用相关的新技术，提高单位频率所传送的信息量 Like all radio communications, mobile communications use radio frequencies. Radio frequency is a limited and precious resource for human beings. We must treasure, care for resources and make effective use of resources just like we treat land, water and mineral resources. This is our attitude of being responsible for our country. To effectively use resources, we must actively adopt the relevant new technologies to improve the amount of information transmitted by the unit frequency