LTE与3G互操作关键问题分析及优化研究

摘要

若想充分发挥中国联通多网协同优势，实现“3G/4G一体化”目标，LTE与3G的互操作至关重要。通过对互操作方案选择、网络参数配置、终端和应用等影响LTE与3G数据业务互操作性能的关键问题进行分析研究，同时，结合CS-FB语音呼叫流程对各关键阶段中影响语音性能的关键问题进行分析研究，针对影响用户感知的上述各类互操作关键问题给出相关解决方案。%To give ful play to China Unicom’s multi-network synergies,achieve 4G/3G integration goal,the interoperability of LTE and 3G is the key to the solution. It analyzes and researches the key issues affecting the interoperation of LTE and 3G such as inter-operation solution selection,network parameter configuration,terminal and applications. Combined with CSFB voice cal pro-cedure,it also analyzes the key issues affecting voice performance. It provides the related solutions on the key interoperation issues affecting user perception.