Connection Destination Server Selection by Measured Turnaround Time
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Solution Overview
Problem
Existing server selection methods in 5G core networks, such as the NRF procedure, fail to account for factors like communication path noise and server configuration, leading to suboptimal communication performance due to reliance on geographical location and load information alone.
Innovation Solution
A communication control apparatus calculates turnaround time per unit data amount between servers to determine priority for selecting a connection destination based on actual communication performance, incorporating factors like signal transmission and response time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If server selection is based on geographical location information and load information, then the selection process is simple and fast, but the communication performance may deteriorate due to factors like communication path noise and server configuration
Solution Approach 1:
The system performs preliminary communication tests between servers before actual service deployment to evaluate communication performance in advance. Turnaround time measurements are conducted beforehand to establish a baseline for server selection, allowing the system to choose servers with proven good communication performance without affecting real-time service speed.
Solution Approach 2:
The system uses temporary test signals and disposable measurement data to evaluate communication paths. These test communications are short-lived and consume minimal resources, yet provide sufficient information to determine long-term server pairing suitability, replacing the need for complex continuous monitoring.
2Reliability
If geographical location information and load information are not open to the public, then server security and privacy are protected, but other servers cannot select the server to be controlled as a connection destination
Solution Approach 1:
The system introduces an intermediary measurement mechanism where turnaround time is used as an indirect indicator of communication quality. Instead of exposing sensitive server information, servers communicate through standardized test signals and performance metrics, allowing selection based on observed performance rather than disclosed confidential data.
Solution Approach 2:
The system changes the selection criteria from information-based (geographical location, load information) to performance-based (turnaround time). This parameter transformation allows servers to be selected based on actual communication performance without requiring access to or disclosure of protected server configuration information.
3Ease of operation
If server selection relies only on geographical location and load information, then the selection criteria are straightforward, but it is impossible to establish communication with servers having preferable communication conditions
Solution Approach 1:
The system implements feedback through turnaround time measurements, where servers continuously measure and report communication performance metrics. This feedback loop enables the selection system to identify servers with actually good communication performance, adjusting selections based on real performance data rather than theoretical geographical proximity.
Solution Approach 2:
The system replaces the mechanical/geographical selection mechanism (based on physical location and static load information) with a performance-based measurement system. Turnaround time measurements substitute for geographical calculations, dynamically identifying optimal server pairs based on actual communication performance rather than fixed geographical relationships.
Data Source
AI summary
A communication control apparatus is configured to calculate a turnaround time per unit data amount between a server to be controlled and each of a plurality of servers including an other server, based on a required time from when the server to be controlled starts transmitting a signal to such other server until the server to be controlled receives a response to the signal from such other server, and a data size of the signal; determine, based on the turnaround time, a priority for selecting from among the plurality of servers a connection destination server to which the server to be controlled is to be connected; and select the connection destination server from among the plurality of servers based on the priority.