Emergency Call Connection Prioritization in Multi-Network Devices
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Solution Overview
Problem
Conventional methods for emergency call connections in electronic devices supporting multiple domain subsystems often result in prolonged connection times and reduced success rates, particularly when switching between cellular and Wi-Fi networks, as they sequentially attempt connections without simultaneous prioritization.
Innovation Solution
An electronic device with both cellular and Wi-Fi communication modules that simultaneously attempts emergency call connections and prioritizes the successful network for immediate execution, reducing the time required for establishing an emergency call.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sequential emergency call connection attempts are performed (first cellular domain, then Wi-Fi domain), then the system complexity is reduced and operation is simplified, but the connection time increases and productivity decreases
Solution Approach 1:
The electronic device performs preliminary registration with the IMS network through the Wi-Fi domain before actually needing to place an emergency call. This preliminary action ensures that when an emergency call is needed, the device can immediately utilize the pre-established Wi-Fi connection without delay, effectively reducing connection time while maintaining operational simplicity.
Solution Approach 2:
The system dynamically switches between cellular and Wi-Fi domains based on real-time connection status and emergency call requirements. Instead of a fixed sequential approach, the device can adaptively select the optimal domain for emergency calls, potentially using Wi-Fi when registered and cellular when not, thereby reducing overall connection time while keeping the operation model simple.
2Speed
If Wi-Fi domain is used for emergency call connection, then connection speed may be improved, but additional IMS registration procedure is required increasing device complexity
Solution Approach 1:
The device performs IMS registration through the Wi-Fi domain in advance, before emergency calls are needed. This preliminary registration eliminates the need to perform the registration procedure at the moment of emergency, thus maintaining fast connection speed while the complexity of registration is handled beforehand rather than adding to the critical emergency path.
3Reliability
If multiple communication modules are used for emergency call, then reliability is improved, but the coordination and control complexity increases
Solution Approach 1:
The system implements dynamic domain switching based on registration status and connection availability. The controller selectively activates either Wi-Fi or cellular domain for emergency calls based on real-time conditions, maintaining high reliability through multi-domain capability while avoiding the complexity of simultaneously managing both domains for every call.
Data Source
AI summary
Various embodiments of the present invention provide a method and apparatus for an emergency call connection by an electronic device. An electronic device according to various embodiments of the present invention may comprise: a first wireless communication circuit for communicating with a first network; a second wireless communication circuit for communicating with a second network; and a processor, wherein the processor: detects a trigger for an emergency call connection; in response to the trigger, initiates the emergency call connection on the basis of the first wireless communication circuit and the second wireless communication circuit; determines priorities of the first and the second wireless communication circuit; and performs the emergency call connection by using a wireless communication circuit determined according to the determined priorities. Various embodiments are possible.