5G关键技术及其对4G的影响研究

摘要

5G wil be a hybrid network with multi-RAT,multi-frequencies and multi-network,and compared to 4G,the use of frequen-cy spectrum is increased 5~15 times and the cost benefit is increase hundred times. Based on the requirements for 5G,the potential technologies have been discussed. In views of the hybrid network features,these solutions are aimed to the smooth upgrading from 4G to 5G,and the decrease of the cost and difficulty.%未来5G网络是一个多网络、多频段、多制式的混合网络，相对4G频谱效率将提升5～15倍、能效和成本效率将提升百倍以上。以5G的性能指标要求为基础，研究了达到该指标要求的关键技术应用，针对5G混合网络的特点，提出了其对4G网络建设的影响，并提出综合考虑5G技术应用的方案，从而更好地适应未来5G网络，实现4G到5G的平滑升级，降低网络升级的成本和改造难度。