TD-LTE发展中的关键问题

Key Problems in Development of TD-LTE

中国移动已经开始大规模商用TD-SCDMA网络,但是与最高速率可以达到54Mb/s和75Mb/s的WLAN和WiMax网络相比,TD-SCDMA的标准384Kb/s和最高只有2Mb/s的速率在数据需求高速增长的今天,显然并不具有吸引力。目前中国移动正在致力于把TD-SCDMA网络向LTE网络演进,而在演进过程中将会面临诸多问题和挑战。根据当前运营的Wifi、GSM以及TD-SCDMA等网络的特点,以及TD-LTE网络可能会面临的挑战,就演进过程中需要解决的网络融合、如何降低运营成本、终端需求、网络以及服务管理等多种关键问题进行了深入探讨,并给出了采用全IP网络、用基于SOAP协议加XML语言的方案来对网络和服务进行管理、多网共享基础资源结构等多个可能的解决方案,对于未来实际工作中解决类似问题提供了有价值的参考。

China Mobile has started using TD-SCDMA as a business network on a large scale.As compared with WLAN and WiMax,however,the TD-SCDMA network has little superiority in data transmission.TD-SCDMA is evolving into LTE,and the key problems such as multi-network operation,operating cost control,terminal requirements,et.al in this evolving,are discussed.The possible solutions as full IP network,SOAP plus XML for management of future services are also given,which would be of significant value for future work.