Multi-Mode Mobile Terminal Interface Emulation
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Solution Overview
Problem
Users of dual-mode CDMA/GSM mobile terminals face frustration due to differences in user interfaces between CDMA and GSM modes, particularly when features like Call Waiting and conference calls are handled differently, making it cumbersome for users to adapt and utilize network features while roaming.
Innovation Solution
A multi-mode mobile terminal is designed to provide a consistent user interface by determining the call state and converting user interface interactions into corresponding messages for the alternate mode, allowing it to emulate the second-mode interface while operating in the first mode, thus enabling seamless operation across different wireless network standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile terminal operates in dual-mode (CDMA/GSM) to support different network standards, then the adaptability and versatility are improved, but the device complexity increases and the user interface becomes inconsistent across modes
Solution Approach 1:
The mobile terminal implements a universal user interface layer that functions across both CDMA and GSM modes. The system detects the current network mode and automatically adapts the interface behavior to provide consistent Call Waiting and conference call operations regardless of whether the terminal is operating in CDMA or GSM mode, thereby achieving multi-functionality without increasing perceived complexity
Solution Approach 2:
The system dynamically changes operational parameters based on the detected network mode. When switching between CDMA and GSM modes, the terminal adjusts message conversion rules and interface response behaviors accordingly, allowing the same physical interface to serve multiple network standards with different protocol requirements
2Adaptability or versatility
If the mobile terminal provides different user interfaces for CDMA and GSM modes to match network-specific features, then the adaptability to network features is improved, but the ease of operation deteriorates due to requiring users to learn multiple interfaces
Solution Approach 1:
The system implements a message conversion mechanism that copies and adapts interface interactions between modes. When a user performs an action in one mode (e.g., pressing a soft key for Call Waiting), the system converts this interaction into the corresponding message format required by the other mode, making the user experience consistent across CDMA and GSM networks without requiring users to learn different procedures
Solution Approach 2:
The patent introduces an intermediary message conversion layer between the user interface and the network-specific protocols. This mediator detects the current mode, interprets user actions, converts them to appropriate messages for the active network mode, and manages the switching between CDMA and GSM interface requirements, thereby shielding users from the complexity of mode-specific differences
3Ease of operation
If the mobile terminal emulates one-mode interface while in another mode, then the ease of operation is improved by maintaining consistent interface behavior, but the device complexity increases due to mode detection and message conversion requirements
Solution Approach 1:
The mobile terminal implements self-service through automatic mode detection and interface adaptation. The system continuously monitors the active network mode and automatically adjusts its interface behavior and message conversion rules without requiring user intervention or complex manual configuration, thereby maintaining ease of operation while managing the necessary complexity internally
Solution Approach 2:
The system employs feedback mechanisms where the detected network mode information is fed back to the interface control logic. This feedback loop enables the terminal to dynamically adjust its behavior based on the current operating mode, ensuring consistent user experience while automatically managing the complexity of supporting multiple network standards
Data Source
AI summary
To provide a consistent (i.e., single-mode) user interface in each mode of operation available on a multi-mode mobile terminal, aspects of the user interface used for a second mode (e.g., the CDMA mode) are emulated by the mobile terminal when the mobile terminal is operating in a first mode (e.g., the GSM mode). Responsive to receiving, while operating in a first mode, an indication of a given user interface interaction, the multi-mode mobile terminal determines the call state. Based on the given user interface interaction and the call state, the multi-mode mobile terminal selects a candidate message corresponding to operation of the multi-mode mobile terminal in a second mode. The multi-mode mobile terminal then converts the candidate message to one or more first-mode messages and transmits the one or more first-mode messages to the MSC at the second wireless network subsystem.