Terminal Data Communication Control for Voice Call Quality
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Solution Overview
Problem
In 3G mobile communication networks, simultaneous CS and PS domain services can cause RF signal interference, particularly in weak electromagnetic fields, affecting voice call quality due to unintended background data transmission.
Innovation Solution
A method and apparatus that sense voice calls and suspend data communication if a data suspension condition is met, such as a weak signal strength or background data transmission, by deleting default gateway information from the routing table to prioritize voice call quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data communication is allowed during voice call in weak electromagnetic field, then data transmission can continue, but voice call quality deteriorates due to RF signal interference
Solution Approach 1:
The system dynamically adjusts data communication behavior based on real-time signal strength detection. When weak electromagnetic field is detected during voice call, data communication is automatically suspended; when signal strength improves, data communication is restored. This dynamic adaptation resolves the contradiction by making data communication conditional rather than static.
Solution Approach 2:
The system changes the operational parameter of data communication (from active to suspended) based on the detected electromagnetic field strength parameter. By monitoring signal strength as a threshold parameter and changing data communication state accordingly, the system prioritizes voice call quality while maintaining data communication capability under different conditions.
2Reliability
If background data communication is suspended during voice call, then voice call quality improves, but data transmission is interrupted
Solution Approach 1:
The system implements periodic monitoring of electromagnetic field strength during voice calls and periodically evaluates whether to suspend or restore data communication. This periodic action allows the system to minimize interruption time by restoring data communication as soon as signal conditions improve, rather than maintaining suspension for the entire duration of the voice call.
Solution Approach 2:
The system performs preliminary detection of electromagnetic field strength before fully suspending data communication. By detecting weak signal conditions in advance and proactively suspending data communication before severe interference occurs, the system prevents quality degradation while minimizing the duration of suspension through early restoration when conditions improve.
Data Source
AI summary
A method for controlling data communication in a terminal is provided. The method includes sensing whether a voice call occurs in the terminal, determining whether a data suspension condition is satisfied during the voice call, and suspending the data communication in the terminal during the voice call if the data suspension condition is satisfied. An apparatus for controlling data communication in a terminal is provided. The apparatus includes a communication unit configured to communicate data between the terminal and a base station, and a controller configured to detect whether a voice call occurs in the terminal, determine whether a data suspension condition is satisfied after the voice call occurs, and cause the communication unit to suspend the data communication in the terminal while the data suspension condition is satisfied.