中文说明： 自过去的几十年不同类型的蜂窝网络发起了和去成功的无线电链接如WiMAX，变得非常流行，因为其高数据速率 （70Mbps） 和 支持提供无线上网服务超过 50 公里的距离。UMTS 长长期演进 （LTE） 是一项新兴的技术演变的 3g 移动电话服务。LTE 在进化 已经在全球范围内利用超过 80%的手机用户的现有 UMTS 基础结构上运行。我们有非常有限的资源，在蜂窝技术和它是很重要利用 它们效率高。
English Description：
Since past few decades different types of cellular networks were launched and went successful on the radio links such as WiMAX, that became very popular because of its high data rate (70Mbps) and support for providing wireless internet services over 50km distance. The UMTS Long Term Evolution (LTE) is an emerging technology in the evolution of 3G cellular services. LTE runs on an evolution of the existing UMTS infrastructure already used by over 80 percent of mobile subscribers globally. We have very limited resources in cellular technologies and it is important to utilize them with high efficiency.