Dynamic Handover Parameter Adjustment for Dual-Connectivity RTT
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Solution Overview
Problem
Existing techniques for managing handovers in dual-connectivity wireless networks fail to account for high round-trip-time issues at shared routers, leading to sub-par network performance and increased latency, especially when multiple wireless devices connect to nodes with shared equipment, causing traffic congestion.
Innovation Solution
The system monitors round-trip-time at dual-connectivity access-node-pairs and dynamically adjusts handover parameters to inhibit handovers to nodes with high round-trip-time, preventing further connections and improving network quality by adjusting thresholds and offsets to make handovers less likely to nodes with high congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If handover techniques are used to manage wireless device connections in dual-connectivity networks, then connectivity and throughput are improved, but round-trip-time increases and network performance deteriorates when multiple devices connect to nodes with shared equipment
Solution Approach 1:
The patent implements dynamic handover parameter adjustment based on real-time round-trip-time measurements. The system continuously monitors RTT metrics and adjusts handover parameters dynamically, transitioning from static to adaptive handover management that responds to changing network conditions caused by multiple device connections to shared equipment.
Solution Approach 2:
The system establishes a feedback loop by monitoring round-trip-time performance metrics and using this information to adjust handover parameters. The RTT measurements provide feedback about network congestion levels, which then inform subsequent handover decisions, creating a closed-loop control system that optimizes connectivity while preventing time loss from congestion.
2Adaptability or versatility
If multiple wireless devices connect to dual-connectivity access nodes simultaneously, then network coverage and connectivity are enhanced, but traffic congestion increases and quality of experience deteriorates
Solution Approach 1:
The system performs preliminary assessment of round-trip-time conditions before allowing handovers to occur. By measuring RTT metrics in advance and evaluating network capacity beforehand, the system prevents handovers that would exacerbate congestion, thereby maintaining connectivity benefits while avoiding the harmful effects of overloading shared equipment.
Solution Approach 2:
The patent changes handover parameters based on monitored round-trip-time conditions. When RTT exceeds thresholds indicating congestion, the system adjusts parameters such as handover thresholds and offsets to restrict handovers to less congested nodes, dynamically adapting network behavior to prevent traffic congestion while preserving connectivity.
Data Source
AI summary
A system may include an access node to deploy a radio air interface to provide wireless services to one or more wireless devices. The access node may include processing circuitry. The processing circuitry of the access node may monitor a round-trip-time of split-mode communication of a dual connectivity access-node-pair. The processing circuitry of the access node may dynamically adjust one or more handover parameters based on the round-trip-time. The handover parameters may be adjusted to inhibit handovers to the dual connectivity access-node-pair.