Title: PTP telecom profile for frequency synchronization
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:
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