Base Station Capability Indication for Multi-SIM Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication technologies in multi-card terminals face challenges in efficiently managing multi-SIM card connection switching, as not all network-side devices support this functionality, and even those that do may have different conditions for support.
Innovation Solution
The proposed solution involves a capability indication method executed by base stations and core networks, where capability information is sent to indicate support for multi-SIM card connection switching. This information is used by terminals to determine the compatibility of network-side devices for seamless multi-SIM card operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-SIM card connection switching is implemented, then terminal communication flexibility is improved, but network-side device compatibility becomes problematic
Solution Approach 1:
The patent applies preliminary action by having the base station send capability indication information to the core network in advance, before the terminal attempts multi-SIM card connection switching. This allows the core network to know beforehand whether the base station supports this feature, enabling proactive routing decisions and avoiding failed switching attempts to incompatible base stations.
Solution Approach 2:
The core network acts as an intermediary between the terminal and base station. It receives capability indication information from the base station, stores this capability data, and uses it to make intelligent routing decisions. This intermediary role ensures that terminals are directed to compatible base stations, resolving the compatibility issue without requiring all network devices to uniformly support the feature.
2Measurement precision
If capability indication information is sent to core network, then terminal capability determination accuracy is improved, but network signaling overhead increases
Solution Approach 1:
The patent extracts only the essential capability indication information from the base station and sends it to the core network, rather than transmitting complete capability datasets. This selective extraction approach provides sufficient information for the terminal to determine compatibility while minimizing the amount of signaling data consumed in the network.
3Adaptability or versatility
If all network-side devices support multi-SIM card switching, then system compatibility is improved, but device complexity and deployment difficulty increase
Solution Approach 1:
The patent applies local quality by allowing individual base stations to have different capability statuses regarding multi-SIM card connection switching. Each base station can independently indicate whether it supports this feature, rather than requiring all base stations to be uniformly configured. This enables gradual deployment and maintains system compatibility without forcing complex updates across the entire network.
Data Source
AI summary
The present disclosure relates to capability indication and determination methods and apparatus, a communication apparatus, and a storage medium. The capability indication method comprises: sending first capability information to a core network, the first capability information being used to indicate the support capabilities of a base station for multi-SIM card connection handover by a terminal.