Multi-SIM Slice Switching Using Cross-Operator Slice Mapping
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Solution Overview
Problem
Conventional multi-SIM terminal devices cannot seamlessly switch network slices from one SIM card to another, especially when the cards belong to different operators, leading to reduced service quality due to mismatched slice services.
Innovation Solution
A method for card-transfer slice switching that involves acquiring a switchable slice based on a slice database, monitoring network quality, and user-defined application priorities to ensure seamless transition without affecting application usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If direct slice switching is performed between SIM cards of different operators, then card switching is achieved, but slice service quality deteriorates due to mismatched slice services
Solution Approach 1:
The system pre-establishes a slice database that stores mapping relationships between slices of different operators before switching occurs. When a card transfer slice switching signal is received, the system queries this pre-built database to determine the corresponding slice on the target card, rather than attempting direct switching which would fail due to operator-specific slice configurations.
Solution Approach 2:
The slice database acts as an intermediary layer between the source card's slice and the target card's slice. It stores the mapping relationships and enables indirect switching by translating the source slice identifier to the corresponding target slice identifier, thereby resolving the incompatibility between different operators' slice configurations.
2Adaptability or versatility
If multi-SIM terminal devices support card transfer switching, then flexibility is improved, but slice continuity is lost due to inability to switch slices between cards
Solution Approach 1:
The slice database serves as an intermediary that maintains slice service continuity during card transfers. By storing pre-established mapping relationships between slices of different operators, it enables the system to switch between SIM cards while preserving the logical continuity of the slice service through database-mediated translation of slice identifiers.
Solution Approach 2:
The system performs preliminary actions by pre-building the slice database with mapping relationships before any card transfer occurs. This advance preparation ensures that when switching is needed, the system can immediately query the database and maintain slice continuity without interruption, rather than attempting to establish mappings in real-time during the transfer.
3Device complexity
If slice switching is implemented without a slice database, then system complexity is reduced, but switching accuracy deteriorates due to inability to match slices across operators
Solution Approach 1:
The slice database acts as an intermediary data structure that stores precise mapping relationships between slices of different operators. It enables accurate slice matching during card transfers by providing a pre-established reference that translates source slice identifiers to corresponding target slice identifiers, thereby achieving high switching accuracy without requiring complex real-time matching algorithms.
Solution Approach 2:
The system performs preliminary action by pre-building the slice database with accurate mapping relationships before switching operations. This advance preparation of the mapping data structure enables precise slice matching during transfers without requiring complex runtime computation, thereby achieving high accuracy while keeping the switching mechanism itself relatively simple.
Data Source
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AI summary
A card-transfer slice switching method, a device and a storage medium are disclosed. The card-transfer slice switching method includes: acquiring a card-transfer slice switching signal (S1000); obtaining a switchable slice according to the card-transfer slice switching signal, an application network usage status of a current card and a preset slice database, the slice database including matching information between the application network usage status and the switchable slice of a target card to be transferred to (S2000); and, performing card-transfer slice switching according to the switchable slice (S3000).