Dual-Mode Communication Terminal Rapid Boot via Segmented OS
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Solution Overview
Problem
Communication terminals in private mobile radiocommunication networks, such as Tetra, Tetrapol, or P25, have limited resources, restricting them to voice communications and low-speed data transmission, and require booting times that exceed the operational requirements for emergency services.
Innovation Solution
A dual-mode communication terminal with a narrow-band and a wide-band communication module, utilizing a simplified Linux-based first operating system for rapid startup and a more resource-intensive OS like Android or iOS for high-speed data services, allowing quick voice communication and subsequent access to high-speed data services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a full-featured operating system (Android, iOS, Windows) is used to enable high-speed data services and rich user interface, then the terminal can access broadband networks and provide video conferencing, but the boot time exceeds 45 seconds which violates emergency service requirements
Solution Approach 1:
The operating system is segmented into two distinct parts: a lightweight first OS (e.g., Linux) that boots rapidly for narrowband communication, and a full-featured second OS (e.g., Android, iOS) that provides broadband capabilities. The terminal can switch between these OS segments based on service requirements, enabling rapid deployment for emergency services while maintaining broadband access capability when needed.
Solution Approach 2:
The terminal dynamically switches between different operating system states based on operational requirements. During emergency response scenarios, the system activates the lightweight first OS for immediate narrowband communication. When broadband services are needed and time permits, the system transitions to the second OS, providing adaptive performance optimization.
2Loss of time
If a lightweight operating system is used to achieve rapid boot time, then the terminal can start in less than 10 seconds for emergency services, but the terminal cannot access high-speed broadband data services
Solution Approach 1:
The terminal is designed with multi-functionality by incorporating both a lightweight first OS for rapid narrowband operations and a full-featured second OS for broadband services. This universal design allows the same hardware platform to serve both emergency response requirements and high-speed data communication needs, depending on which OS is activated.
3Device complexity
If a single operating system manages both narrowband and broadband communication, then the system structure is simplified, but the boot time cannot be optimized for emergency services while maintaining broadband capability
Solution Approach 1:
Rather than using a single monolithic operating system, the solution segments the OS into two specialized components: a minimal first OS dedicated to rapid narrowband booting and a comprehensive second OS for broadband operations. This segmentation allows each OS to be optimized independently, with the first OS achieving sub-10-second boot times for emergency services.
4Productivity
If broadband communication module is used for high-speed data transmission, then video conferencing and large data exchange become possible, but the terminal requires longer boot time and may compromise security on public networks
Solution Approach 1:
The terminal dynamically selects which operating system to activate based on the communication requirements. For time-critical narrowband emergency communications, the lightweight first OS is activated for immediate operation. When high-speed broadband data transmission is required and time allows, the system transitions to the second OS, optimizing performance for video conferencing and large data exchanges.
Data Source
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Figure 3
AI summary
The invention relates to a mobile communication terminal (100) characterized in that it includes a narrow-band communication module (104), a broad-band communication module (106), a first operating module (110) and a second operating module (120), said first operating module (110) being configured in order to establish a communication through a narrow-band communication network (10) via said narrow-band communication module (104), said second operating module (120) being configured to establish a communication through said narrow-band communication network (10) via the narrow-band communication module (104) and in order to establish a communication through a broad-band communication network (20) via said broad-band communication module (106).