PTP Profile Identification from Time-Synchronization Signals
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Solution Overview
Problem
Existing PTP systems struggle to identify the profile used by communication devices via a network, as the mechanism for identifying profiles using management messages is optional and not universally implemented, leading to inconsistencies in time synchronization across devices.
Innovation Solution
An identification device and method that identifies the profile used by communication devices through analyzing time synchronization signals, regardless of device mounting situations, by utilizing information inherent in these signals rather than relying on optional management message mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the management message mechanism is used to identify profiles, then profile identification can be performed, but the mechanism is optional and not universally implemented in all devices
Solution Approach 1:
The time synchronization signal itself carries profile identification information, making the signal self-sufficient for both synchronization and identification purposes. This eliminates the need for separate optional management messages and ensures universal implementability across all PTP devices.
Solution Approach 2:
The patent combines profile identification functionality with the existing time synchronization signal transmission. By embedding profile information in the time synchronization signal that already must be exchanged for synchronization, the solution achieves both functions through a single mandatory mechanism.
2Reliability
If separate networks are provided for each Client with different profiles, then each Client can achieve accurate time synchronization, but network complexity increases
Solution Approach 1:
The patent enables a single network to support multiple PTP profiles simultaneously by having the GMC identify and adapt to different client profiles through the time synchronization signals. This allows one network infrastructure to serve multiple functions and support diverse applications without requiring separate physical networks.
Solution Approach 2:
The GMC dynamically identifies client profiles and adjusts its behavior based on the detected profile type. This dynamic adaptation allows the system to handle different profile requirements (such as different time synchronization methods or parameters) within a single static network infrastructure.
Data Source
AI summary
An identification device (10) is an identification device that is connected to a first communication device and a second communication device that perform time synchronization, by transmission and reception of a time synchronization signal in accordance with a single profile among a plurality of profiles and identifies a profile used by at least the first communication device, of the first communication device and the second communication device, and the identification device includes identification units (12U and 12L) that identify a profile used by the first communication device, on the basis of information regarding the transmission and the reception of the time synchronization signal in accordance with the single profile among the plurality of profiles and a method of the time synchronization included in the time synchronization signal acquired from the first communication device.