Adaptive Time Synchronization Reference Update
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Solution Overview
Problem
Existing mobile network technologies face challenges in maintaining accurate time synchronization, particularly outside satellite solutions, due to frequency synchronization drift and network failures, leading to increased data exchange and potential service disruptions.
Innovation Solution
A method for updating time synchronization references based on traceability information related to frequency synchronization, allowing for adaptive periodicity adjustments to reduce data exchange and maintain synchronization, even during failures, by determining the quality and accuracy of the frequency synchronization reference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency synchronization is used to maintain time synchronization reference between updates, then time synchronization can be maintained without continuous updates, but frequency synchronization drift and network failures degrade synchronization accuracy
Solution Approach 1:
The patent applies dynamics by making the update periodicity adaptive rather than fixed. The network device dynamically adjusts the time synchronization reference update periodicity based on traceability information quality, allowing the system to optimize between data exchange reduction and synchronization accuracy maintenance according to current conditions
Solution Approach 2:
The patent changes the parameter of update periodicity based on traceability information quality. When traceability information indicates good frequency synchronization quality, the update periodicity is extended (reducing updates), and when quality degrades, the periodicity is shortened (increasing updates), thus adapting to varying conditions
2Productivity
If transmission of time synchronization reference is interrupted due to network failure, then data exchange is reduced, but service continuity is disrupted
Solution Approach 1:
The patent applies preliminary action by having the network device determine the update periodicity in advance based on traceability information quality before interruptions occur. This allows the system to be prepared with appropriate update intervals that balance normal operation efficiency with failure resilience
Solution Approach 2:
The patent uses feedback from traceability information quality assessment to adjust update periodicity. The system continuously monitors frequency synchronization quality through traceability information and uses this feedback to adaptively control the update rate, ensuring service continuity while optimizing data exchange
3Reliability
If a secondary primary time synchronization source is deployed to replace failed sources, then service continuity is ensured, but device complexity and cost increase
Solution Approach 1:
The patent applies self-service by enabling the existing frequency synchronization reference to automatically maintain time synchronization during failures without requiring manual intervention or additional primary sources. The system serves itself by using available traceability information to adaptively adjust update periodicity, ensuring continuity with existing resources
Data Source
Figure 1~4
AI summary
The invention relates to a method of updating a temporal synchronization reference exchanged between a first item of equipment and at least one second item of equipment belonging to a communication network. The method comprises the following steps implemented by one of the two items of equipment: a step of receiving a traceability cue relating to a frequency-synchronization reference; a step of determining the periodicity of updating of the temporal synchronization reference as a function of said traceability cue received, said updating making it possible to maintain the temporal synchronization reference of the second item of equipment.