Base Station Capability Exchange for Multi-SIM Handover Stability
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Solution Overview
Problem
Multi-SIM card terminals experience performance issues due to simultaneous communication operations causing conflicts, such as paging message interference, leading to suboptimal network performance and user experience.
Innovation Solution
A method and apparatus for exchanging capability information between base stations and terminals to facilitate informed decision-making during handover, including sending and receiving capability information related to multi-SIM card support and potential conflicts, allowing base stations to assess and potentially reject or prepare for multi-SIM card terminals to prevent anomalies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If capability information sharing between base stations is implemented, then compatibility and stability of multi-SIM terminals are improved, but system complexity and signaling overhead increase
Solution Approach 1:
The capability information of the multi-SIM terminal is obtained in advance by the first base station before handover occurs. This preliminary acquisition allows the second base station to be pre-assessed for compatibility, avoiding the need for complex real-time coordination during the handover process itself.
Solution Approach 2:
The first base station acts as an intermediary that collects capability information from the terminal and transmits it to the second base station. This intermediary role simplifies the system architecture by centralizing the information sharing function rather than requiring direct complex interactions between all network elements.
2Stability of the object's composition
If capability information is shared during handover, then service continuity is improved, but signaling overhead and handover delay increase
Solution Approach 1:
Capability information is obtained and shared before the handover execution phase. By performing this information exchange in advance (during the preparation phase), the actual handover can proceed more quickly without being blocked by real-time capability verification delays.
Solution Approach 2:
The second base station uses the received capability information to determine whether it can accept the handover request. This feedback mechanism ensures that only compatible base stations are selected for handover, maintaining service continuity while avoiding failed handover attempts that would increase delay.
Data Source
AI summary
A capability sending method and apparatus, and a capability receiving method and apparatus are provided. The capability sending method includes: sending capability information of a terminal to a second base station; acquiring capability information of the second base station solving a multi-card problem; and sending the capability information for solving the multi-card problem to the terminal.