Cell Handover Signaling for Multi-Card Paging Collision Handling
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Solution Overview
Problem
The lack of a unified standard for handling multi-card terminals leads to various behaviors and methods, resulting in multiple problems such as paging timing collisions, resource wastage, and communication disruptions during cell handovers in multi-card terminals.
Innovation Solution
A method involving base stations to send handover request signaling with multi-card problem information, configuring terminal configuration information to solve issues like paging collisions and resource wastage during cell handover, using random access preamble codes and time duration information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-card terminals operate without unified standards, then terminal manufacturers can implement flexible handling methods, but communication performance degrades and multiple multi-card problems occur
Solution Approach 1:
The patent introduces a unified standard that enables base stations to handle multiple card types (first card and second card) with different network attachments through a single standardized mechanism. The handover request signaling and terminal configuration information provide universal handling capabilities that work across different terminal types and network configurations, resolving the contradiction between flexibility and reliability.
2Productivity
If dual-card dual-standby dual-pass mode is implemented, then terminal connectivity is improved, but paging timing collisions and resource wastage occur
Solution Approach 1:
The patent applies preliminary action by having the source base station identify and report multi-card problems before handover occurs. The target base station receives this information in advance and configures terminal parameters beforehand to prevent paging timing collisions and resource wastage during the handover process, thereby maintaining connectivity while avoiding resource loss.
Solution Approach 2:
The patent implements feedback mechanisms where the source base station reports multi-card problem status to the target base station during handover preparation. This feedback loop enables the target base station to adjust terminal configuration information dynamically, preventing resource wastage and ensuring efficient use of network resources while maintaining dual-card connectivity.
3Device complexity
If handover is performed without multi-card problem reporting, then handover process is simplified, but communication performance degrades and errors occur
Solution Approach 1:
The patent segments the handover process into distinct phases: normal handover execution and multi-card problem handling. The source base station separately identifies and reports multi-card problems, and the target base station separately processes terminal configuration information. This segmentation allows the handover process to remain relatively simple while adding targeted complexity only where needed to maintain communication performance.
Data Source
AI summary
A handling method for a multi-card problem includes: determining that a multi-card terminal needs to perform cell handover, sending a handover request signaling to a target base station to which the multi-card terminal is to hand over, where the handover request signaling includes a multi-card problem in the multi-card terminal.