1. Packet Based Methods: Standardization Framework
Packet Based Methods: Standardization Framework
Frequency Sync
Time/Phase Sync
Application
Packet based
methods
Arrangement
Basic
Requirements
(Independent
from
protocols)
CES
(“traffic masks”)
PNT
(“x ppb”)
Phase/Time (e.g. “0.1-1 ms”)
Accurate Phase/Time (e.g. “0.x – x ms”)
Specific
requirements
(dependent on
Protocols
Definition
General
With support from
Network Nodes
End-to-end
(“sync mask”)
Protocols details
Work flow
Implementations with PTP, NTP, Others (“Telecom Profiles”)
- Performance related aspects (G.8264, G.8263?, G.8261? )
Network Architecture (G.8261)
Network Modelling (G.8264)
Clock Spec. (G.8263)
Equipment Functions (G.8261, G.8264)
Inputs from other standardization bodies
Study area tecnhically relevant
Study area could be technically relevant but probably is of lower interest
Study area relates to a challenging scenario (technically possible in special cases)
Target Requirements (G.8261)
Sync Methods (G.8261)
Network Limits (G.8261)
Outside Q13 scope (e.g. IETF, IEEE)
Traditional ToD (e.g. “ ms”)
Network Architecture (G.8265? G.826x?)
Network Modelling (8265, G.826x)
Clock Spec. (G.8263? G.826x ?)
Equipment Functions (G.8265)
Implementations with PTP, NTP, Others (“Telecom Profiles”) - Performance related aspects (G.8265, G.826x?)
Target Requirements (G.8265?, G.826x?)
Sync Methods (G.8265? G.826x?)
Network Limits (G.8265?, G.826x?)
Performance
Related aspects
Ericsson AB 2008

2. Input for drafting on Q13 Standardization Framework for Frequency Sync
Input for drafting on Q13 Standardization Framework for Frequency Sync
Recc.
Main Contents
What is missing
How to address
G.8261
Target Requirements
Network Limits
Sync Methods
Detailed model to clarify where the PDV limits apply.
PDV metrics and related network limits
New Living List
Via Amendment
G.8262
SyncE Clocks
completed -
G.8263
Packet based clocks spec
Clock model
PSC, PEC, speifications
New Clocks?
New document
G.8264
Modelling Functional blocks
Equipment functions
Details on use of protocols: for syncE (i.e. SSM) and for packet based (e.g. “IEEE1588 Telecom Profiles”: these could be handled in Annexes, one per application)
Details on packet based methods incl. profiles
New revision ?
Ericsson AB 2008

3.
Input for drafting on Q13 Standardization Framework for Time-Phase Sync
Recc.
Main Contents
What is missing
How to address
G.pactiming-bis
Target Requirements
Network Limits
Sync Methods
New document
G.paclock-ter
Time-Phase clocks spec (e.g. Boundary clock)
G.8265
Functional blocks Modelling
Equipment functions
Details on use of protocols (e.g. “IEEE1588 Telecom Profiles”, NTP implementations; these could be handled in Annexes, one per application)
Ericsson AB 2008