Conditional Handover Cancellation for 5G Resource Waste Control
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Solution Overview
Problem
Existing 5G communication systems lack a method to cancel a condition handover (CHO) after a source base station initiates a CHO request.
Innovation Solution
A method and device for cancelling a CHO by allowing the source or target network side devices to initiate CHO cancellation based on actual situations, such as timing constraints or unsuitable target conditions, through the exchange of CHO cancellation messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the source base station sends a CHO request to the target base station, then the handover preparation process is initiated, but there is no mechanism to cancel the CHO if conditions change, leading to wasted processing resources
Solution Approach 1:
The patent implements a feedback mechanism where the source base station can send a CHO cancellation message to the target base station when handover conditions are no longer met. This feedback loop allows the system to respond to changing conditions by canceling the handover preparation, thereby avoiding wasted processing resources while ensuring reliable handover execution only when appropriate
Solution Approach 2:
The patent enables preliminary cancellation of the CHO before the handover is executed. By allowing the source base station to cancel the CHO request at any time before the handover occurs, the system can prevent unnecessary handover preparations based on outdated conditions, thus avoiding waste of processing resources while maintaining handover reliability
2Productivity
If the source base station continues to maintain CHO preparation without cancellation capability, then handover can proceed when conditions are met, but processing resources are allocated unnecessarily when conditions change
Solution Approach 1:
The patent implements a mechanism to discard ongoing CHO preparations when no longer needed. The source base station can send a CHO cancellation message to the target base station, causing the target to discard the prepared handover resources. This allows the system to recover processing resources that would otherwise be wasted, thereby improving handover processing efficiency while optimizing resource allocation
3Ease of operation
If the target base station prepares for CHO without cancellation option, then handover can be executed smoothly when conditions are met, but network resources are consumed unnecessarily when handover is not needed
Solution Approach 1:
The patent establishes a feedback mechanism where the source base station monitors handover conditions and can send a CHO cancellation message to the target base station. This feedback allows the target base station to know when to stop preparing for handover, ensuring smooth execution when needed while avoiding unnecessary network resource consumption when conditions change
Solution Approach 2:
The patent enables preliminary cancellation of CHO preparation at the target base station. By allowing the source base station to cancel the CHO request before the handover is executed, the target base station can stop preparation activities in advance, ensuring smooth handover execution when conditions are met while preventing unnecessary network resource consumption
Data Source
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AI summary
A condition handover cancellation method and a communication equipment are provided. A CHO cancellation method applied to a source network side device includes: sending a CHO request to at least one target network side device; and sending a CHO cancellation message to the target network side device and/or a terminal side device.