Dual-SIM Service Configuration via Shared Data Network
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Solution Overview
Problem
Dual-card dual-standby mobile communication terminals face service interruptions when configuring services for one SIM card, as they share a single set of antenna resources, leading to adverse effects on the other SIM card's service.
Innovation Solution
A service processing method that determines if the data network for the first SIM card is enabled and transmits service configuration requests for the second SIM card through the existing data network of the first SIM card, prompting the user for confirmation before proceeding, thereby avoiding the need to switch data channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the mobile communication terminal uses a single set of antenna resources for dual-card dual-standby, then cost is reduced, but service interruption occurs during handover of data channel for each SIM card
Solution Approach 1:
The patent merges the data channel resources of the first SIM card with the service configuration needs of the second SIM card. When the second SIM card requires service configuration, the system utilizes the existing data channel of the first SIM card to transmit the configuration request message, thereby combining resource usage and avoiding service interruption.
Solution Approach 2:
The data channel of the first SIM card is made multi-functional by allowing it to serve not only the first SIM card's data services but also to transmit service configuration requests for the second SIM card. This universal usage of the data channel eliminates the need for dedicated channels for each SIM card while maintaining service continuity.
2Ease of operation
If the mobile communication terminal configures service for one SIM card by switching data channel, then service configuration is achieved, but service for the other SIM card is interrupted
Solution Approach 1:
The patent introduces an intermediary approach where the service configuration request message for the second SIM card is transmitted through the data channel of the first SIM card. This intermediary usage of the first SIM card's data channel allows configuration without switching, thereby maintaining service continuity for both SIM cards.
3Reliability
If the mobile communication terminal provides separate data networks for each SIM card, then service isolation is improved, but device complexity increases
Solution Approach 1:
The patent combines the data channel resources that would otherwise be separate for each SIM card. By allowing the first SIM card's data channel to handle both its own data services and the second SIM card's service configuration requests, the system merges resource usage and reduces overall device complexity while maintaining service isolation through logical channel management.
Data Source
Figure 1~1-a
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AI summary
The present disclosure relates to the field of communication technology, and provides a service processing method and a mobile communication terminal. The service processing method includes: when a service configuration request corresponding to a second SIM card has been detected, determining whether a data network for a first SIM card has been enabled, the service configuration request being a request to be transmitted via the data network; and when the data network for the first SIM card has been enabled, transmitting a service configuration request message for the second SIM card via the data network for the first SIM card.