Title: PTP telecom profile for frequency synchronization

On this page:

Summary

• Defines the profile (options, parameters, extensions) for the use of PTP for packet-based frequency delivery

• Main use-case is frequency synchronization of cellular basestations

Status

• Current version: 2nd. Edition, July 2014, plus Corrigendum 1, April 2016
• Download from: http://www.itu.int/ITU-T/recommendations/rec.aspx?rec=12193

Key Contents

Profile Features:

• Unicast Messaging - easier to support and manage in telecoms networks
• Message rates up to 128 messages per second (typical rates 16 to 32)
• Operates over IPv4/UDP for universal applicability (IPv6 also permitted)
• Operates over existing telecoms networks, with no PTP “on-path” support required
• Planned protection schemes in accordance with existing telecom practice
• Based on G.781 Quality Levels for compatibility with current sync networks

Logical Model: