Wireless Relay Node Load Balancing for Cell Edge Offloading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless networks face challenges in providing high-quality service to increasing numbers of devices due to limitations in relay nodes' ability to effectively service wireless devices, particularly when the donor access node serves numerous devices, leading to degraded performance from high backhaul connection loads, without an optimal mechanism for resource allocation based on relay node load affecting both relay and donor access nodes.
Innovation Solution
Implementing a system that monitors the load of relay nodes and offloads wireless devices attached to the donor access node when the load meets a threshold, specifically targeting cell-edge devices to neighboring access nodes, thereby balancing the load and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If relay nodes are implemented to improve coverage and service quality, then coverage area and service quality are improved, but the relay nodes become limited in their ability to effectively service wireless devices when donor access node serves numerous devices
Solution Approach 1:
The patent implements dynamic load balancing by continuously monitoring the load on relay nodes and donor access nodes, and dynamically transferring wireless devices between them based on current load conditions. This dynamic adjustment allows the system to adapt to changing traffic patterns and maintain service effectiveness while expanding coverage area.
Solution Approach 2:
The system changes the operational parameters of relay nodes and donor access nodes by adjusting which wireless devices are served by which node based on load metrics. This parameter change enables the network to optimize resource allocation and maintain reliability across expanded coverage areas.
2Quantity of substance
If donor access node serves numerous additional wireless devices directly connected, then network capacity is increased, but performance is degraded for wireless devices connected to relay access node due to high backhaul connection load
Solution Approach 1:
The patent implements a feedback mechanism where the load on relay nodes and donor access nodes is continuously monitored and measured. Based on this feedback, the system automatically makes decisions about transferring wireless devices to balance the load, ensuring that performance is maintained while serving numerous devices.
Solution Approach 2:
The system dynamically adjusts the assignment of wireless devices to relay nodes or donor access nodes based on real-time load conditions. This dynamic reassignment allows the network to maintain high productivity for all devices even as the total number of served devices increases.
3Reliability
If load balancing is implemented to improve service quality, then service quality and throughput are improved, but system complexity increases due to load monitoring and device transfer mechanisms
Solution Approach 1:
The load balancing system operates autonomously by automatically monitoring load conditions and making decisions about device transfers without requiring manual intervention. This self-service approach improves service quality while managing complexity through automation rather than manual processes.
Solution Approach 2:
The system manages complexity by focusing on changing key operational parameters (device assignments based on load metrics) rather than redesigning the entire network architecture. This targeted parameter change approach improves service quality with minimal added complexity.
Data Source
AI summary
Exemplary embodiments described herein include systems, methods, and processing nodes for performing load balancing in a wireless network based on a load of a relay node communicatively coupled to a donor access node. Exemplary methods described herein include determining that a traffic load on a relay node meets a threshold, wherein the relay node is configured to relay traffic between an access node and a first one or more wireless devices attached to the relay node, and attempting to offload a second one or more wireless devices attached to the access node and located at a cell edge of the access node.