Up-to-date requirements for providing new generation communication networks with reference signals of time and frequency
The article discusses the main trends in the development of communication network technologies and equipment for time-frequency support. The increased requirements for time-frequency synchronization are stated, links are provided to the current recommendations of the International Telecommunication Union. The article describes the prospects for the use of coherent systems of time-frequency support. A conclusion is made about the prospects of using fiber-optic communication lines to provide coherent time-frequency systems with reference signals of frequency and time.