Conditional Handover Combined Condition Optimization
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Solution Overview
Problem
Current 3GPP 5G technology lacks detailed discussion on fulfilling a combined condition in a Conditional Handover (CHO) procedure, which can lead to unsuitable combined conditions and potentially dangerous situations during handover.
Innovation Solution
A method where a User Equipment (UE) receives CHO configuration information from a network node, which includes an execution condition comprising two events, and transmits assistant information related to these events to optimize the combined condition in the CHO procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If combined conditions are used in CHO procedure to improve handover reliability, then handover safety is improved, but the complexity of condition evaluation and configuration increases
Solution Approach 1:
The combined condition evaluation is segmented into multiple independent event evaluations (first event and second event) that can be processed separately. Each event has its own fulfillment criteria, allowing the UE to evaluate them independently and report results through assistant information, thereby reducing the complexity of simultaneous multi-parameter evaluation while maintaining reliable handover decisions.
Solution Approach 2:
The network node pre-configures the CHO configuration information including both events and their fulfillment conditions before the handover scenario occurs. This preliminary configuration allows the UE to have clear evaluation criteria in advance, reducing real-time processing complexity during actual handover execution while ensuring reliable decision-making based on pre-analyzed conditions.
2Manufacturing precision
If detailed event information is collected and transmitted to optimize CHO conditions, then handover optimization is improved, but the signaling overhead increases
Solution Approach 1:
Only the essential assistant information related to event fulfillment is extracted and transmitted from the UE to the network node, rather than transmitting all possible measurement data. This selective extraction provides sufficient information for handover optimization while minimizing signaling overhead by excluding redundant data.
Solution Approach 2:
The patent changes the parameter representation by using event fulfillment indicators (whether first event and second event conditions are met) rather than transmitting raw measurement values. This parameter transformation reduces the amount of data to be transmitted while preserving the critical information needed for CHO condition optimization.
Data Source
AI summary
Embodiments of the present application relate to methods and apparatuses for a combined condition in a conditional handover (CHO) procedure under a 3rd Generation Partnership Project (3GPP) 5G system or the like. According to an embodiment of the present application, a method can be performed by a user equipment (UE) and can include: receiving, from a network node, CHO configuration information associated with a candidate cell of the UE, wherein the CHO configuration information includes an execution condition comprising an event and a further event; and transmitting, to the network node, assistant information related to at least one of the event and the further event.