Relay Node Service Assignment in Mixed 4G 5G Coverage
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Solution Overview
Problem
Wireless networks face challenges in optimizing resource allocation and service quality due to the coexistence of different wireless service types, such as 4G and 5G, which may not be configured to utilize multi-user multiple-input multiple-output (MU-MIMO) operating modes effectively, especially when relay nodes are involved.
Innovation Solution
A method and system that instruct relay nodes and end-user devices to attach to the appropriate wireless service type based on their coverage areas and configurations, ensuring that relay nodes attach to services not capable of MU-MIMO and end-user devices attach to services that are, thereby optimizing resource allocation and service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If relay nodes are allowed to attach to both first type (non-MU-MIMO) and second type (MU-MIMO) wireless services in overlapped coverage areas, then service flexibility and coverage are improved, but resource allocation efficiency and service quality deteriorate due to suboptimal service type selection
Solution Approach 1:
Instead of allowing relay nodes to freely attach to any available service type and then optimizing, the invention inverts the approach by pre-determining the optimal service type assignment based on relay node capabilities and service type characteristics. The network controller assigns relay nodes to specific service types (first or second type) based on whether they should support non-MU-MIMO or MU-MIMO operations, ensuring optimal resource allocation from the outset rather than correcting suboptimal assignments later.
2Area of stationary object
If relay nodes deploy radio air interfaces in overlapped coverage areas without service type differentiation, then coverage area is improved, but service quality and throughput deteriorate due to mixed mode operations
Solution Approach 1:
The invention applies local quality by differentiating service type assignments for different relay nodes based on their specific locations, capabilities, and the local network conditions. Rather than uniformly treating all relay nodes the same in overlapped coverage areas, the network controller assigns specific service types (first type non-MU-MIMO or second type MU-MIMO) to individual relay nodes, ensuring that each relay node operates in the most appropriate mode for its specific context, thereby maintaining high service quality across the entire coverage area.
3Ease of operation
If end-user wireless devices are not differentiated from relay nodes in service attachment decisions, then device simplicity is improved, but network performance and throughput deteriorate due to inappropriate service type selection
Solution Approach 1:
The invention implements self-service by enabling relay nodes to autonomously identify themselves as relay nodes (rather than end-user devices) and make informed service attachment decisions based on their specific capabilities and the available service types. The relay nodes can self-determine whether to attach to first type or second type services based on their MU-MIMO support capabilities, eliminating the need for complex network-controlled assignment while ensuring optimal performance. This self-identification and self-assignment mechanism maintains device simplicity while dramatically improving network throughput compared to treating all devices uniformly.
Data Source
AI summary
A wireless network may have two types of wireless services such as 4G and 5G. The 4G service may not be configured to communicate with wireless devices using multi-user multiple-input multiple-output (MU-MIMO) operating mode, while the 5G service can communicate using MU-MIMO. When a relay node is positioned such that it is within the coverage areas of both types of wireless service, the relay node is instructed to attach to the wireless service that is not capable of utilizing the MU-MIMO operating mode. Conversely, wireless devices within the coverage areas of both types of wireless service that are not configured as relay nodes may be instructed to attach to the wireless service capable of utilizing the MU-MIMO operating mode so that these wireless devices may receive the benefit of utilizing MU-MIMO.