Roaming UE Billing Validation and Carrier Selection
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Solution Overview
Problem
Roaming users face high and unclear service charges due to different charging systems and expensive rates, with existing methods lacking effective validation of billing information and optimization of service usage.
Innovation Solution
A method and apparatus for a UE to extract and validate billing information, calculate cumulative charges, and select optimal communication carriers based on usage patterns, while providing data-free services and usage limits to manage roaming costs effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If roaming service is provided through partnership with foreign carriers, then roaming service coverage is improved, but service charge increases
Solution Approach 1:
The UE autonomously extracts billing information from SMS messages, validates it against carrier information, and calculates cumulative charges without requiring manual intervention or additional charging infrastructure. This self-service approach enables the system to provide roaming services while managing costs through automated billing verification.
2Ease of operation
If billing information is provided via text message, then information delivery is simplified, but information reliability deteriorates
Solution Approach 1:
The system extracts billing information from SMS messages and validates it by comparing against carrier information obtained from network registration. This feedback mechanism verifies the authenticity of billing information received via text message, ensuring reliability while maintaining the simplicity of SMS-based delivery.
Solution Approach 2:
The UE acts as an intermediary that receives billing information via SMS, cross-checks it with authoritative carrier information from the network, and only accepts it as valid when they match. This intermediary verification process ensures the reliability of otherwise simple SMS-based information delivery.
3Loss of energy
If comprehensive billing information is monitored, then cost control is improved, but device complexity increases
Solution Approach 1:
The UE utilizes its existing messaging and network communication capabilities to perform multiple functions: receiving billing SMS, extracting information, validating against carrier data, calculating cumulative charges, and providing alerts. This multi-functional approach achieves comprehensive billing monitoring without adding dedicated complex hardware or systems.
Data Source
Figure 1A~1B
Figure 1C
Figure 2a~2c
AI summary
A method of a roaming user equipment (UE) according to an embodiment of the disclosure includes obtaining billing information of the roaming UE from a message received from a communication carrier server, sending a billing information authentication request message including the obtained billing information to an authentication server, and receiving an authentication result regarding whether the billing information is valid.