Single Modem Carrier Adaptation via Profile Loading
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Solution Overview
Problem
User devices often require multiple modem versions to accommodate different wireless carriers, leading to increased costs and undesirable roaming charges or performance issues when the associated carrier does not provide direct access to a primary wireless network at the device's location.
Innovation Solution
Implementing a system where user devices maintain multiple device profiles for different wireless carriers, allowing the modem to be automatically reconfigured to use a primary wireless network upon power-on, eliminating the need for carrier-specific modems and reducing roaming charges by selecting the most cost-effective and coverage-efficient carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple modem versions are used to accommodate different wireless carriers, then compatibility with various carriers is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent implements a single modem that can operate with multiple wireless carriers by loading different device profiles (containing carrier-specific parameters such as network IDs, authentication keys, and frequency settings) into a reconfigurable parameter set. This allows one modem hardware to universally support multiple carriers without requiring separate modem versions for each carrier.
Solution Approach 2:
The patent changes the operational parameters of the modem by loading different device profiles that contain carrier-specific configuration data. Instead of changing the modem hardware or firmware version, the system modifies the parameter set (network identifiers, authentication credentials, frequency bands) to match the target carrier, enabling the same modem to adapt to different carriers through parameter reconfiguration.
2Reliability
If carrier-specific modems are used, then network performance is optimized for each carrier, but roaming charges increase when the associated carrier does not provide direct access to a primary wireless network
Solution Approach 1:
The patent implements dynamic selection of device profiles based on the user's current location and available wireless networks. The system can switch between different carrier configurations in real-time, selecting the profile that provides direct access to the primary wireless network at the current location, thereby minimizing or eliminating roaming charges while maintaining optimal network performance.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor the current wireless network environment and automatically select the appropriate device profile. By detecting available networks and evaluating their characteristics (such as whether they provide direct access to the primary network), the system feedback-driven selects the optimal carrier configuration, balancing performance and cost considerations.
3Ease of manufacture
If a single modem version is used for all carriers, then manufacturing cost is reduced, but the ability to maintain optimal performance across different carriers is worsened
Solution Approach 1:
The patent segments the carrier-specific configuration data into separate device profiles that can be independently stored and loaded. Each profile contains optimized parameters for a specific carrier (network identifiers, authentication keys, frequency settings), allowing the single modem to maintain carrier-optimized performance without requiring carrier-specific hardware. The profiles are segmented from the core modem functionality, enabling flexible loading of the appropriate profile for each carrier.
Data Source
AI summary
A user device determines a current subscriber identity module (SIM) profile, identifies a modem profile that corresponds to the current SIM profile, and updates a non-volatile memory of a modem with the identified modem profile.