时频同步设备模型和参考源选择  

作　　者：楚鹰军[1] 

机构地区：[1]电信科学技术第五研究所,四川成都610062

出　　处：《现代传输》2015年第5期65-69,共5页Modern Transmission

摘　　要：随着基础通信网络分组化演进和移动通信技术的发展,传统的以频率同步为主要支撑目的的数字同步网将逐步被新的以频率/相位/时间为支撑目的的下一代时频同步网替代,相应的独立型节点时钟设备的功能形态也会发生变化。本文提出了一种时频同步设备的功能模型,并在此基础上对系统参考源选择依据和过程进行了讨论。With the evolution of telecommunication network from TDM to packet based network and the development of mobile communication technology, legacy digital synchronization network supported mainly by frequency synchronization is being replaced by the next generation of time ＆ frequency synchronization network with the support of frequency/phase/time. So the function of stand-alone T＆F synch node supply will also be changed. This paper presents a new type of function model of stand-alone T＆F synch node supply, and the rules and procedure of selection of system reference resources based on this new function model is also discussed.

关 键 词：数字同步网 时频同步网 频率同步 相位同步 时间同步 功能模型 参考源选择 SDH PTN/IPRAN 

分 类 号：TN915.0[电子电信—通信与信息系统]