Topical issues of application of time-frequency synchronization equipment on the communication network of Russia

At present, only the equipment for clock synchronization is regulated on the Russian communication networks from the Frequency-Time Provision equipment. At the same time, not only frequency (clock), but also frequency-phase and time-frequency synchronization is already widely used on the unified telecommunication network of Russia, for the implementation of which new types of equipment are required. And the functions of the synchronization equipment have been considerably expanded due to the use of time synchronization signals in the distribution of clock synchronization signals over the packet communication network. In addition, in the near future on the cellular communication network is expected to introduce the standard of communication 5G. Application this standard requires to ensure the divergence of time scales of base stations within 150-250 ns, which, in turn leads to the need to upgrade the corresponding synchronization equipment. The task of this paper is to show how the requirements for the functionality and technical characteristics of the equipment of the private sector change, and how this process needs to be prepared.