Multi-SIM Base Station Switching via Binding Signaling
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Solution Overview
Problem
Existing base station switching methods for terminals with multiple SIM cards are inefficient, leading to increased signaling overhead and prolonged switching times.
Innovation Solution
A method where the terminal sends binding signaling with SIM card binding information to the source base station, allowing for a single switching request signaling to be sent for multiple SIM cards, reducing signaling and switching time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each SIM card sends individual switching requests to the base station, then the switching process can be completed for each SIM card, but the signaling overhead increases and switching time is prolonged
Solution Approach 1:
The patent combines multiple SIM card switching requests into a single group switching request message. Instead of processing each SIM card's switching request separately, the base station receives one consolidated request containing switching information for multiple SIM cards, processes them together, and returns a unified response. This merging approach reduces signaling overhead and shortens the overall switching time while ensuring all SIM cards complete the base station switching process.
2Reliability
If each SIM card sends individual switching requests to the base station, then the switching process can be completed for each SIM card, but the signaling overhead increases
Solution Approach 1:
The patent merges multiple individual switching request messages into a single group switching request message. The terminal device constructs one message that contains switching information for multiple SIM cards, reducing the total number of signaling messages exchanged between the terminal and base station. This significantly reduces signaling overhead while maintaining complete switching functionality for all SIM cards.
Solution Approach 2:
The group switching request message serves multiple functions simultaneously: it acts as a switching request for multiple SIM cards, carries configuration parameters for all SIM cards, and enables the base station to process and respond to all switching operations in one interaction cycle. This multi-functional design reduces the need for multiple separate signaling exchanges.
3Reliability
If multiple SIM cards perform base station switching independently, then each SIM card can be switched, but the overall switching efficiency decreases
Solution Approach 1:
The patent merges the switching processes of multiple SIM cards into a single coordinated operation. The terminal device sends one group switching request, the base station processes all switching operations together, and returns a unified response. This combined approach maintains switching completeness for all SIM cards while significantly improving overall switching efficiency by eliminating redundant signaling and processing steps.
Data Source
AI summary
This application provides a base station switching method and an apparatus. The method includes: A terminal sends one piece of binding signaling that carries SIM card binding information to a source base station; the terminal switches a plurality of SIM cards from being connected to the source base station to being connected to the target base station; and the terminal sends radio resource control reconfiguration complete information to the target base station, where the radio resource control reconfiguration complete information includes information about the plurality of SIM cards that complete the switching operation.