Network Synchronization via Mobile Intermediary for Base Station Monitoring
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Solution Overview
Problem
Current network synchronization methods between geographically apart base stations require physical connection for measurement, lack real-time monitoring, and increase costs due to mobile station measurement requirements.
Innovation Solution
A network synchronization system with a third communication device that exchanges synchronization information between two geographically apart communication devices via an information terminal, allowing for regular monitoring and comparison of synchronization accuracy without the need for physical connection or mobile station measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical connection to one measurement device is used for measuring synchronization accuracy between two base stations, then measurement can be performed, but real-time monitoring is not possible and the method cannot be executed on a regular basis
Solution Approach 1:
The patent introduces a mobile station as an intermediary device that travels between two base stations to collect synchronization information. This mediator enables regular monitoring without requiring physical connection of measurement equipment to both base stations simultaneously, thus achieving real-time monitoring capability while maintaining measurement accuracy
Solution Approach 2:
The mobile station collects synchronization information (time stamps, synchronization data) from both base stations and transmits this copied information to a external device for analysis. This copying approach allows the measurement function to be separated from the base stations themselves, enabling flexible and regular monitoring execution
2Measurement precision
If mobile station measures all reception timings for synchronization verification, then synchronization accuracy can be confirmed, but the cost of the mobile station increases
Solution Approach 1:
The patent extracts the complex measurement and verification functions from the mobile station and relocates them to an external device. The mobile station only needs to collect and transmit synchronization information, while the external device performs the computationally intensive tasks of calculating time differences and verifying synchronization accuracy, thereby reducing mobile station cost and complexity
3Reliability
If transmission is required at synchronized timing with received signal (as in JP2013-93730A), then synchronization can be achieved, but waiting for timing is required which reduces efficiency
Solution Approach 1:
The mobile station collects synchronization information in advance during its movement between base stations, storing time stamps and synchronization data before any verification is needed. This preliminary collection eliminates the need to wait for specific transmission timing, as all necessary data is already gathered and can be immediately transmitted for verification
Solution Approach 2:
The patent separates the synchronization information collection function from the verification function. The mobile station independently collects synchronization data from each base station without needing to coordinate transmission timing with received signals. This segmentation allows asynchronous collection and eliminates waiting time while maintaining synchronization reliability through subsequent comparative analysis
Data Source
AI summary
Provided are a network synchronization system and a synchronization method for a network system that achieve network synchronization for a network between geographically apart points. The network synchronization system includes a first communication device positioned at a first point, a second communication device positioned at a second point being different from the first point, and a third communication device configured to communicate with the first communication device and the second communication device, and receive synchronization information relating to the first communication device from the first communication device, and then transmit the synchronization information relating to the first communication device to the second communication device.