Terminal Emergency Service Initiation via Network Support Indication
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Solution Overview
Problem
In hybrid networking scenarios of 5G and future network systems, there is a challenge in initiating emergency services effectively due to the complexity of supporting emergency services across different types of access-network and core-network elements.
Innovation Solution
A service processing method and apparatus that involves receiving indication information about the support for emergency services by access-network and core-network elements, allowing terminals to initiate emergency services based on this information, and potentially reselecting to alternative network elements if the current ones do not support emergency services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal initiates emergency service in a hybrid networking scenario without checking support status, then the service initiation process is simple and fast, but the emergency service may fail to transmit effectively due to lack of support from network elements
Solution Approach 1:
The terminal performs preliminary checks by receiving first indication information from the access-network network element and second indication information from the core-network network element before initiating the emergency service. This advance verification ensures that the terminal only initiates emergency services when both network elements confirm support, thereby guaranteeing transmission effectiveness without adding significant complexity to the overall process.
2Reliability
If the terminal checks support status from both access-network and core-network elements before initiating emergency service, then the emergency service transmission reliability is improved, but the service initiation time is increased
Solution Approach 1:
The terminal merges the reception of first indication information from the access-network network element and second indication information from the core-network network element into a coordinated verification process. By combining these checks and only initiating the emergency service when both confirm support, the system ensures reliability while minimizing the time loss through efficient parallel processing of the indication information.
3Reliability
If the terminal reselects to alternative network elements when current ones do not support emergency service, then the service reliability is improved, but the network switching complexity is increased
Solution Approach 1:
The access-network network element and core-network network element act as intermediaries that provide indication information to the terminal about their emergency service support status. When the terminal receives negative indication from either network element, it uses these intermediaries to initiate reselection to alternative network elements. This intermediary mechanism simplifies the switching process by providing clear guidance signals rather than requiring complex terminal-side network discovery and evaluation.
Data Source
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AI summary
This application provides a service processing method and apparatus, to help a terminal initiate an emergency service, so that the emergency service can be effectively transmitted. The method includes: receiving, by a terminal, first indication information, where the first indication information is used to indicate whether at least one type of access-network network element in a first network supports an emergency service; receiving, by the terminal, second indication information, where the second indication information is used to indicate whether a core-network network element in the first network supports the emergency service; and initiating, by the terminal, the emergency service based on the first indication information and/or the second indication information.