Secondary Node Assisted Handover for Dual-Connectivity Wireless Networks
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Solution Overview
Problem
Existing wireless networks face challenges in optimizing user device connectivity by efficiently handover between primary nodes to improve throughput and reduce latency, especially in scenarios involving dual connectivity.
Innovation Solution
A system and method that utilize a secondary node in a telecommunication network to dynamically assess and communicate feedback to a primary node, facilitating a handover to an optimal primary node based on timing advance and angle of arrival values, thereby enhancing user device connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a user device is served by a primary node in existing wireless networks, then basic connectivity is maintained, but throughput is limited and latency is high due to lack of intelligent handover optimization
Solution Approach 1:
The secondary node continuously monitors timing advance values and angle of arrival values of user devices, and provides feedback to the primary node. This feedback mechanism enables the primary node to make informed handover decisions based on real-time channel conditions, thereby improving throughput and reducing latency through optimized connectivity.
Solution Approach 2:
The secondary node acts as an intermediary that assists in the handover process. It evaluates channel conditions and provides recommendations to the primary node for optimal handover decisions, enabling intelligent connectivity optimization without requiring the user device to directly manage handover complexity.
2Extent of automation
If manual handover management is used in existing wireless networks, then basic connectivity handover is achieved, but system complexity increases and automation is reduced
Solution Approach 1:
The system enables automated handover optimization where the secondary node autonomously monitors channel conditions, evaluates timing advance and angle of arrival values, and generates handover recommendations without requiring manual intervention. This self-service mechanism reduces operational complexity while enhancing automation capabilities.
Solution Approach 2:
The secondary node performs preliminary evaluation of channel conditions and pre-calculates optimal handover targets based on timing advance and angle of arrival values before handover is needed. This preliminary action allows the primary node to execute handovers efficiently with reduced decision-making complexity during critical connectivity transitions.
Data Source
AI summary
Systems and methods are provided for a secondary node that provides assistance to primary nodes in determining whether a user device should be switched to another primary node in order to improve the service experience. In aspects, when a user device is operating with dual connectivity, a secondary node can determine whether the service experience for the user device can be improved with a handover to another primary node based on the timing advance value and/or angle of approach value for the user device relative to an index that defines value(s) for matching a user device to available primary nodes. When the service experience can be improved, the secondary node sends an assist notification to the primary node that presently serves the user device, which triggers the primary node to hand over the user device to the other primary node identified for service improvement.