一种用于5G前传的半有源波分复用方案

A semi-active wavelength division multiplexing scheme for 5G front-haul

5G作为新一代移动通信技术,具有大带宽、低时延和海量连接等特点。5G可为用户带来革命性的业务体验,也能开发新型商业模式,为通信运营商提供持续增长的新动力。为满足5G技术的三大业务场景的需求,需要前传技术综合考虑网络资源、成本和技术成熟度等各方面因素,满足低时延、高可靠性的要求。并本文通过对现有前传技术的分析,明确原有技术的优缺点,提出了半有源波分复用方案。该方案采用非对称的设备形态,适应C-RAN组网,利用现有成熟技术,在提供网管和保护恢复功能的基础上,保证技术简洁,降低设备成本。该方案与现有前传方案相比,具有明显的综合优势。

As a new generation of mobile communication technology,5G has the characteristics of enhanced mobile broadband,ultra-reliable low-latency communications,and massive machine-type communications.5G can bring users a revolutionary business experience,and can also develop new business models,providing communication operators with new growth momentum.In order to meet the requirements of the three major business scenarios of 5G technology,the front-haul technology is required to meet the requirements of low latency and high reliability,and comprehensive consideration of various factors such as network resources,cost,and technology maturity.In this paper,through the analysis of the existing pre-transmission technology,the advantages and disadvantages of the original technology are clarifi ed,and a semi-active wavelength division multiplexing scheme is proposed.The solution adopts an asymmetric device configuration,adapts to the C-RAN networking,and utilizes existing mature technologies to ensure simple technology and reduce equipment costs on the basis of providing network management and protection and recovery functions.Compared with the existing pre-transmission scheme,this scheme has obvious comprehensive advantages.