Emergency Call Routing Across WLAN, Cellular, and Satellite
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Solution Overview
Problem
Existing electronic devices face challenges in establishing reliable communication links for emergency calls, particularly when conventional wireless local area networks (WLAN) and cellular networks fail, necessitating a robust fallback mechanism for satellite communication.
Innovation Solution
The electronic device employs a multi-circuitry approach, sequentially attempting connections via WLAN, cellular networks, and satellite communication, with a user interface transitioning between states to manage failures and facilitate satellite messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device uses a single communication circuit for emergency calls, then the device complexity is reduced, but the reliability of emergency communication is insufficient when conventional networks fail
Solution Approach 1:
The communication system is segmented into multiple independent communication circuits (first communication circuit for WLAN, second communication circuit for cellular network, third communication circuit for satellite). Each circuit operates independently and can be activated based on availability, ensuring that failure of one circuit does not prevent emergency communication through other circuits.
Solution Approach 2:
The electronic device is designed with multi-functionality by incorporating multiple communication circuits that can serve different purposes. The same emergency call functionality can be achieved through multiple different communication pathways (WLAN, cellular, satellite), making the system universally capable of emergency communication regardless of which network infrastructure is available.
2Reliability
If the electronic device attempts multiple communication pathways sequentially, then the reliability of emergency call connectivity is improved, but the time required to establish connection increases
Solution Approach 1:
The electronic device performs preliminary actions by checking the availability of communication networks (WLAN, cellular, satellite) before attempting to establish an emergency call. The processor identifies which communication circuit is available and configures the appropriate user interface in advance, so that when an emergency call is initiated, the connection can be established quickly through the pre-identified available pathway without sequential trial-and-error attempts.
3Ease of operation
If the electronic device provides detailed user interface options for all communication circuits, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The user interface is designed dynamically rather than statically. The processor identifies the available communication circuit and automatically configures the user interface to reflect the current communication state. The user interface displays different information and options based on which communication circuit is available (WLAN, cellular, or satellite), providing ease of operation by showing only relevant options while avoiding the complexity of displaying all possible communication circuit options simultaneously.
Data Source
AI summary
An electronic device and a method performed by the same are provided. The electronic device includes a display, a plurality of communication circuitry, memory, including one or more storage media, storing instructions, and at least one processor, including processing circuitry, communicatively coupled to the display, the plurality of communication circuitry, and the memory, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to, in response to an input for an outgoing call related to an emergency service, while identifying whether a communication link is established based on a wireless local area network (WLAN) by using a first communication circuit among multiple communication circuits, display a first user interface related to the outgoing call on a display, in a first state where the communication link is established based on the WLAN, request a first outgoing connection for the outgoing call via the first user interface during a first designated time by using a second communication circuit related to a cellular network, and, after the first designated time, based on identifying failure of the first outgoing connection, request a second outgoing connection for the outgoing call during a second designated time by using the first communication circuit.