Prerequisites for the creation of a co-herent public communication network - the basis of end-to-end digital technologies
Anatoliy V. Ryzhkov, Mikhail L. Schwartz · T-Comm - Телекоммуникации и Транспорт · 2021
This article is a logical continuation and concretization of the authors' work [1]. Dedicated to the consideration of the prerequisites and possibilities of creating a coherent public communication network in the interests of end-to-end digital technologies. Justification and use of the core of the time-frequency support of the fixed network as a basis for the synchronization system of 5G and 6G standards communication networks. Based on the ITU-T Recommendations, an analysis was carried out on the current state of the primary reference sources of frequency and time (Primary Reference Timing and Clock – PRTC), the basic requirements for them in terms of frequency and time signal accuracy, the possibility of implementing promising PRTC and enhanced PRTC – ePRTC on domestic equipment. Precision characteristics of frequency and time signals on the network sections from the sources of the State Time and Frequency Service to the ePRTC, between the PRTC core of the backbone network and the wireless communication network synchronization system. The norms for the permissible errors of the main nodes of the network elements are given, their feasibility is shown.