IPRAN网络下5G时间同步优化方案研究

Research on 5G Time Synchronization Optimization Scheme in IPRAN

针对5G基站采用GPS同步方式时成本高、安全性低等问题,提出一系列的解决方案。首先,用双模模块解决卫星授时的安全性问题。其次,采用有源功率分配和无源功率分配方案解决卫星天线安装受限问题,并降低建设成本。在无法安装卫星天线的情况下,采用1588v2技术在IPRAN接入环内部署主从时钟源。该方案可以满足100 ns的同步精度需求,并且可以大幅度降低5G时间同步的部署成本,对5G时间同步技术的优化和部署有一定的借鉴作用。

It proposes a series of solutions to the high cost and low security issues of using GPS synchronization for 5G base stations.Firstly,it uses dual-mode modules to solve the security issues of satellite timing.Then,it adopts active power distribution and passive power distribution solutions to solve the problem of limited installation of satellite antennas and reduces construction costs.When satellite antennas cannot be installed,1588v2 technology is used to deploy master slave clock sources within the IPRAN ring.The scheme can achieve synchronization accuracy of 100 ns and significantly reduce the deployment cost of 5G time synchronization.It has a certain reference value for the optimization and deployment of 5G time synchronization technology.