Conditional Handover Cell Checks for Failure Localization
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Solution Overview
Problem
Current 5G mobile communication technologies fail to accurately identify problematic cell configurations during conditional handover, leading to link failures without recording the specific target cell causing compliance issues, hindering effective network optimization.
Innovation Solution
Implement a compliance check on cell configurations in conditional handover commands, record the cell identifier of failing target cells, and report failure information, enabling the network to identify and optimize maintenance on these cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If compliance check is performed on target cell configuration during conditional handover, then network optimization capability is improved, but device complexity increases
Solution Approach 1:
The patent performs compliance check on target cell configuration before executing handover. The user equipment checks whether the target cell's configuration (such as subcarrier spacing, cyclic prefix length, etc.) complies with pre-stored capability information. This preliminary action prevents link failure by identifying incompatible configurations in advance, resolving the contradiction by improving detection accuracy while maintaining manageable device complexity through rule-based checking.
2Productivity
If failure record information including cell identifier is reported, then network optimization efficiency is improved, but information transmission overhead increases
Solution Approach 1:
The patent extracts only the essential cell identifier from the target cell configuration information for reporting purposes. Instead of reporting the entire configuration data, only the cell ID is included in the failure record information. This extraction approach enables network optimization by identifying problematic cells while minimizing uplink information overhead, directly resolving the contradiction between optimization efficiency and information overhead.
3Reliability
If compliance check is performed before handover, then link failure rate is reduced, but handover execution time increases
Solution Approach 1:
The compliance check is performed in advance during the conditional handover preparation phase, before the actual handover execution. By checking configuration compatibility beforehand, the system prevents link failure and reduces the need for re-handover, thereby improving reliability. Although this adds some time to the preparation phase, it avoids the much longer time required for link failure recovery, effectively resolving the contradiction between reliability and execution time.
Data Source
AI summary
An information transmission method including: performing a compliance check on a cell configuration of a target cell included in a conditional handover command; when the compliance check on the cell configuration fails, at least recording a cell identifier of the target cell; and reporting failure record information including the cell identifier.