5G Data Session Switching for Dual SIM Devices
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Solution Overview
Problem
In 5G networks, dual SIM dual standby (DSDS) devices often experience lower data speeds on the Default Data Service (DDS) enabled SIM due to poor network conditions or lack of 5G service, even when a second SIM can provide better 5G data services in the same area.
Innovation Solution
The method involves monitoring network broadcasted parameters of the second SIM while performing a 5G data session on the first SIM, detecting trigger criteria such as poor network performance on the first SIM, and dynamically switching the DDS to the second SIM to maintain optimal 5G data services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE maintains DDS on the first SIM, then the device can keep the default data service configuration, but the data speed deteriorates when the first SIM experiences poor network conditions or SCG failure
Solution Approach 1:
The patent implements dynamic switching of the Default Data Service between multiple SIMs based on real-time network conditions. The UE monitors the operational status of 5G data services on each SIM and automatically transitions the DDS from the first SIM to the second SIM when the first SIM experiences SCG failure or poor network conditions, thereby maintaining both reliability and speed.
Solution Approach 2:
The patent employs feedback mechanisms where the UE continuously monitors the operational status of 5G data services on each SIM. When SCG failure or poor network conditions are detected on the first SIM, the system uses this feedback information to trigger automatic switching to the second SIM, ensuring continuous availability of high-speed 5G data service.
2Speed
If the UE manually switches DDS to the second SIM, then the user can access better 5G data service, but the user experience deteriorates due to manual intervention requirements
Solution Approach 1:
The patent implements self-service functionality where the UE automatically monitors network conditions and switches the Default Data Service between SIMs without requiring user intervention. The system independently detects SCG failure or poor network conditions and executes the switching decision, eliminating the need for manual user actions and thereby maintaining both high data speed and ease of operation.
3Adaptability or versatility
If the UE supports Dual SIM Dual Standby, then the device can store multiple SIMs, but the 5G data service is limited to a single SIM at a time
Solution Approach 1:
The patent extends the static single-SIM 5G data service limitation to a dynamic multi-SIM solution. The UE is configured to switch the Default Data Service between multiple SIMs based on real-time operational status, allowing the system to adapt to changing network conditions and maintain continuous 5G data service availability across different SIMs.
Solution Approach 2:
The patent changes the operational parameter from fixed single-SIM data service to flexible multi-SIM data service. By monitoring the operational status parameter of each SIM and dynamically adjusting which SIM provides the 5G data service, the system achieves both versatility in SIM configuration and reliability in service continuity.
Data Source
AI summary
A method for a data session switching by a User Equipment (UE) is provided. The method includes monitoring network broadcasted parameters of a second Subscriber Identity Module (SIM) of the UE while performing a Fifth Generation Cellular Network (5G) data session over a first SIM of the UE, where the first SIM is configured for a Default Data Service (DDS), detecting that a trigger criterion is met for the 5G data session switching to the second SIM based on the network broadcasted parameters, and in response to the trigger criterion being met, configuring the second SIM for the DDS for continuing the 5G data session over the second SIM.