5G Conditional Handover Trigger Configuration
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Solution Overview
Problem
Current wireless communication systems lack a standardized method for configuring trigger conditions in condition-triggered cell management procedures, such as handover or dual connectivity in 5G networks, which affects the efficiency and accuracy of cell management decisions.
Innovation Solution
A method and system for configuring trigger conditions, where a network-side device sends configuration information of a trigger condition and associated trigger events to a terminal device, allowing the device to determine if the trigger condition is satisfied and initiate a radio resource control (RRC) procedure for cell management when conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If trigger condition configuration is standardized with association between multiple trigger events, then decision accuracy and reliability are improved, but device complexity and configuration complexity increase
Solution Approach 1:
The trigger condition configuration is segmented into multiple independent trigger events (first trigger event, second trigger event, etc.), where each event can be independently configured and evaluated. This segmentation allows the system to maintain high reliability through comprehensive condition checking while managing complexity by breaking down the overall trigger condition into manageable independent units that can be processed separately.
2Reliability
If multiple trigger events are associated with one trigger condition, then handover probability and cell management accuracy are improved, but signaling overhead and processing time increase
Solution Approach 1:
The network side device performs preliminary actions by pre-configuring multiple trigger events and their associated conditions before the actual handover decision is needed. This allows the terminal device to efficiently evaluate pre-established conditions without performing complex real-time analysis, thereby improving handover probability while minimizing processing time during critical handover moments.
3Productivity
If trigger condition configuration is implemented in 5G conditional handover, then network resource utilization is optimized, but system complexity and implementation difficulty increase
Solution Approach 1:
The trigger condition configuration system implements dynamic adaptability where the network side device can flexibly configure different trigger events and conditions based on specific network scenarios and requirements. This dynamic configuration allows the system to optimize network resource utilization for conditional handover while managing complexity through scenario-based configuration rather than rigid universal complexity.
Data Source
AI summary
A cell management method, a trigger condition configuration method, a terminal device, and a network-side device are provided. The method includes: receiving configuration information of a trigger condition and configuration information of a trigger event that are sent by a network-side device, where an association relationship exists between the configuration information of the trigger condition and the configuration information of the trigger event, and configuration information of one trigger condition is associated with configuration information of at least two trigger events; determining, based on the configuration information of the at least two trigger events associated with the configuration information of the trigger condition, whether the trigger condition is satisfied; and when the trigger condition is satisfied, initiating a radio resource control RRC procedure for cell management.