TDD and CDMA for wireless communication systems : a very interesting book for both begeners and advanced -TDD and CDMA for wireless communication systems : a very interesting book for both begeners and advanced

3GPP的目标是实现由2G网络到3G网络的平滑过渡，保证未来技术的后向兼容性，支持轻松建网及系统间的漫游和兼容性。 其职能： 3GPP主要是制订以GSM核心网为基础，UTRA(FDD为W-CDMA技术，TDD为TD-CDMA技术)为无线接口的第三代技术规范。(3GPP's goal is to achieve a smooth transition from 2G network to 3G network technology, to ensure the future of backward