Cascaded Network Release Control for Stable 5G NPN Connections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of non-public networks (NPNs) with 5G communication systems, particularly for indoor use, lacks defined procedures for connecting and disconnecting networks in cascade, leading to potential malfunctions and instability in communication systems.
Innovation Solution
A communication system design where the communication terminal or network instructs other connected networks to release their connections when a primary network decides to disconnect, ensuring coordinated release of connections between multiple networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If networks are integrated in cascade without defined release procedures, then network connectivity and functionality are improved, but system stability and reliability deteriorate due to potential malfunctions during network transitions
Solution Approach 1:
The patent applies preliminary action by establishing defined release procedures before network transitions occur. The base station performs preliminary actions including determining whether a connected network should be released, notifying the communication terminal of the release, and instructing the terminal to release the connection before the actual release occurs. This proactive approach prevents malfunctions by ensuring proper sequencing and coordination of network release operations.
Solution Approach 2:
The patent implements feedback mechanisms where the base station notifies the communication terminal about network release decisions, and the terminal provides feedback by confirming the release status. This bidirectional communication ensures that both the base station and terminal have consistent understanding of the network connection state, preventing instability caused by mismatched connection statuses.
2Reliability
If coordinated network release procedures are implemented, then system stability and reliability are improved, but device complexity and protocol overhead increase
Solution Approach 1:
The patent applies universality by designing a multi-functional notification message that conveys multiple pieces of information in a single communication. The base station notification includes both the release decision and instructions for the terminal to release the connection, combining multiple control functions into one message exchange. This reduces protocol overhead while maintaining comprehensive control.
Solution Approach 2:
The patent implements self-service by enabling the communication terminal to autonomously execute the release operation based on the base station's notification. Once the terminal receives the release instruction, it independently performs the connection release without requiring continuous base station control, reducing signaling overhead and simplifying the control protocol.
Data Source
AI summary
Provided is a technology that can increase the robustness of a communication system. A communication system includes: a communication terminal; a first network configured to perform radio communication with the communication terminal; and at least one second network configured to perform communication with the first network. When the first network determines to release connection between the first network and the communication terminal (ST1401) with the communication terminal being connected to the first network and to the at least one second network through the first network, the communication terminal or the first network instructs the at least one second network to release the connection with the communication terminal (ST1405).