Mobile Terminal Roaming Module Dynamic Scanning Frequency Adjustment
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Solution Overview
Problem
Current mobile terminal devices experience energy inefficiencies during roaming due to invariable frequency scanning, leading to momentary connectivity loss and service disruption.
Innovation Solution
A mobile terminal device with modules for detecting communication environment parameters, calculating a radio quality index and user movement index, and adjusting scanning frequency to optimize roaming, thereby reducing energy consumption and maintaining service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the mobile terminal device scans the object access point by invariable frequency during roaming, then the roaming process is simple to implement, but the energy consumption increases
Solution Approach 1:
The patent implements dynamic scanning frequency adjustment based on user movement status. The terminal device determines whether the user is stationary or moving, and adjusts the scanning frequency accordingly - using lower frequency when stationary and higher frequency when moving. This dynamic adaptation resolves the contradiction by making the roaming process adaptive rather than fixed, reducing energy consumption during stationary periods while maintaining responsiveness during movement.
Solution Approach 2:
The patent changes the scanning frequency parameter based on detected user movement status. By monitoring movement characteristics and adjusting the scanning frequency parameter dynamically, the system optimizes energy consumption while maintaining appropriate roaming responsiveness. This parameter adaptation directly addresses the energy consumption issue without significantly complicating the overall roaming implementation.
2Device complexity
If the mobile terminal device scans the object access point by invariable frequency during roaming, then the implementation is straightforward, but the connectivity disruption occurs
Solution Approach 1:
The patent uses dynamic scanning frequency adjustment to maintain connectivity continuity. By adapting the scanning frequency to user movement status, the system ensures more frequent scans when the user is moving (preventing connectivity loss) and less frequent scans when stationary (reducing unnecessary disruptions). This dynamic approach maintains reliability without requiring complex implementation.
Solution Approach 2:
The patent implements a feedback mechanism where the terminal device monitors user movement status and uses this information to adjust scanning frequency. The movement detection module provides feedback about user status, which the roaming control module uses to optimize scanning behavior. This feedback loop ensures connectivity continuity by responding to actual user conditions, maintaining reliability without significant implementation complexity.
Data Source
AI summary
A mobile terminal device detects current communication environment status of the device and calculates a value of a radio quality index (RQI), and adjusts the roaming threshold according to the value of the RQI. The device further calculates a value of a user movement index (UMI) and adjusts the frequency of the device for scanning object access points. After determining the object access point that has satisfied a roaming threshold, the device ends the communication between the device and the current access point, and establishes a communication between the device and the object access point.