Mobile Terminal Handover Protocol Between Short Range and Wireless Internet Modules
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Solution Overview
Problem
Conventional mobile terminals face challenges in supporting diverse functions with efficient communication link transitions between short range communication modules and wireless Internet modules, limiting their ability to maintain connectivity and data transfer speed across varying distances and environments.
Innovation Solution
The mobile terminal incorporates a wireless Internet module that forms a communication link based on information acquired through a short range communication module, enabling handover protocols between NFC, Bluetooth, and Wi-Fi communication links to ensure continuous data communication beyond the short range communication range, using handover request and selection messages to switch to alternative communication technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mobile terminal uses only short range communication module for data transfer, then data transfer speed and connectivity are maintained within short range, but communication capability is lost when moving out of short range communication range
Solution Approach 1:
The mobile terminal is equipped with multiple communication modules (short range communication module and wireless Internet module) that can perform different communication functions. The system can switch between Bluetooth/Wi-Fi for short range high-speed communication and Wi-Fi for long range communication, making the terminal adaptable to various communication scenarios and ranges.
Solution Approach 2:
The handover protocol acts as an intermediary mechanism that facilitates seamless transition between short range communication module and wireless Internet module. It uses handover request messages and handover selection messages to coordinate the switching process, ensuring continuous connectivity without data loss during the transition between different communication technologies.
2Adaptability or versatility
If a mobile terminal switches between short range communication module and wireless Internet module, then communication range and adaptability are improved, but communication continuity and data transfer speed may be affected during handover
Solution Approach 1:
The handover protocol initiates the switching process in advance by sending handover request messages before the current communication link is broken. This preliminary action allows the system to establish the new communication link while maintaining the old one, ensuring seamless transition without interrupting data transfer or affecting communication continuity.
Solution Approach 2:
The handover protocol ensures continuous data communication during the transition between communication modules. By using handover selection messages to confirm the new link establishment and maintaining data flow throughout the process, the system achieves uninterrupted communication, making the handover transparent to the user and applications.
3Reliability
If a mobile terminal implements handover protocol with multiple communication modules, then communication link reliability and adaptability are improved, but device complexity increases
Solution Approach 1:
The handover protocol operates autonomously without requiring user intervention or complex manual configuration. The system automatically detects when handover is needed, sends handover request messages, receives handover selection messages, and completes the switching process independently. This self-service capability simplifies the user experience while maintaining multiple communication modules.
Solution Approach 2:
The handover protocol dynamically adjusts communication parameters such as active communication module, transmission power, and data routing based on current communication conditions. By changing these parameters automatically according to the communication scenario, the system manages multiple modules efficiently without increasing perceived complexity for the user.
Data Source
AI summary
A mobile terminal and a method of controlling the same are provided. The mobile terminal includes: a wireless Internet module; a short range communication module; and a controller for exchanging data through a first communication link using the wireless Internet module, wherein the first communication link is formed based on link data including maintenance information that acquires through a second communication link that forms with at least one other terminal positioned within a predetermined distance using the short range communication module. Therefore, a communication link using a wireless Internet module based on information acquired through a communication link formed using a short range communication module can be formed.