Conditional Handover Cost Feedback for Resource Optimization
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Solution Overview
Problem
In conditional handover (CHO) procedures, inefficient resource utilization occurs due to early or unnecessary preparation of target cells, leading to wasted resources and suboptimal handover decisions, as existing systems lack sufficient feedback mechanisms to adjust preparation policies based on resource utilization costs across different radio nodes.
Innovation Solution
Implementing a mechanism where target radio nodes provide cost feedback to source nodes on resource utilization, allowing for policy adjustments to optimize CHO preparation timing and reduce resource wastage, using machine learning algorithms to evaluate and adjust CHO policies based on received cost information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If early or unnecessary preparation of target cells is performed in conditional handover procedures, then handover reliability is improved, but resource utilization deteriorates due to wasted resources
Solution Approach 1:
The patent implements a feedback mechanism where target radio nodes provide cost information about resource utilization to source radio nodes. This feedback loop enables source nodes to adjust their CHO preparation policies based on actual resource costs, avoiding unnecessary preparations that waste resources while maintaining handover reliability when needed.
Solution Approach 2:
The patent introduces dynamic adjustment of CHO preparation policies based on received cost information. Source radio nodes can modify their preparation behavior dynamically - preparing earlier when costs are low and avoiding preparation when costs are high - thereby optimizing the balance between handover reliability and resource utilization in varying network conditions.
2Loss of energy
If cost feedback mechanism is implemented, then resource utilization is improved, but device complexity increases due to additional signaling
Solution Approach 1:
The patent integrates cost information transmission into existing handover signaling messages, making the signaling infrastructure serve multiple functions - both handover coordination and resource cost communication. This approach avoids creating entirely new signaling protocols and reduces overall system complexity.
Solution Approach 2:
The patent enhances existing signaling messages by adding cost information parameters to them. Rather than creating new message types, the solution modifies existing messages to carry additional cost data, thereby reducing signaling complexity while enabling resource optimization.
3Productivity
If CHO preparation policy is adjusted based on cost information, then productivity is improved through reduced resource wastage, but measurement precision requirements increase to accurately evaluate costs
Solution Approach 1:
The patent enables each radio node to determine and report cost information locally based on its own resource utilization conditions. This localized cost assessment allows for precise, context-aware decision-making at each node without requiring complex centralized measurement and evaluation systems.
Solution Approach 2:
Target radio nodes autonomously determine and report their own cost information regarding resource utilization. This self-service approach eliminates the need for complex external measurement systems, as each node independently provides the cost data needed for optimization decisions.
Data Source
AI summary
An apparatus includes circuitry configured to: initiate a conditional handover preparation for a conditional handover to change communication access for a user equipment from a source node to a target node; receive a cost from the target node following the conditional handover preparation; receive a cause indicating a trigger for sending the cost, an indication of a type of the cost, and a range for the cost, where the cause characterizes a value of the cost to indicate the type of the cost; the cost being based on resource utilization of the target node, the resource utilization being related to providing communication access for the user equipment following the conditional handover preparation; and adjust a policy related to an initiation of a subsequent conditional handover preparation for the user equipment to the target node, the policy adjusted based on the cost to enhance the resource utilization of the target node.