HVRAN Architecture for Small Cell Interference Management
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Solution Overview
Problem
The proliferation of small cell deployments in cellular networks introduces management, configuration, and interference challenges due to the need for numerous interfaces and frequent handoffs, leading to increased operational and financial complexities for network operators.
Innovation Solution
A heterogeneous virtual radio access network (HVRAN) architecture that virtualizes small cell base stations, integrating them seamlessly into a unified ecosystem with macro cells, allowing user equipment to detect a single radio access network entity, thereby minimizing interference and simplifying resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small cells are deployed to enhance network coverage and capacity, then service quality is improved, but device complexity and management overhead increase
Solution Approach 1:
The patent merges small cells and macro cells into a unified virtual radio access network (VRAN) where all base stations are abstracted as a single logical entity. This consolidation eliminates the need for separate management systems for small and macro cells, reducing operational complexity while maintaining the service quality enhancements provided by small cell deployments.
Solution Approach 2:
The virtualized base station performs multiple functions previously handled by separate physical base stations. The VRAN architecture allows a single virtual entity to manage both macro and small cell operations, including interference coordination, resource allocation, and handover management, thereby reducing the number of management interfaces and operational procedures.
2Adaptability or versatility
If multiple interfaces are created for small cell integration, then network flexibility is improved, but operational complexity increases
Solution Approach 1:
The patent extracts the management functions from individual small cell interfaces and consolidates them into a single virtualized control plane. By taking out the complexity of multiple interfaces and embedding it within the virtualization layer, the system maintains network flexibility while presenting a simplified operational interface to network managers.
3Adaptability or versatility
If frequent handoffs occur between macro and small cells, then user mobility is improved, but resource management complexity increases
Solution Approach 1:
The virtualized radio access network implements centralized feedback mechanisms that monitor user equipment status across all base stations. This unified feedback loop enables the VRAN controller to optimize handoff decisions and resource allocation in real-time, reducing the complexity of managing frequent handoffs while maintaining seamless user mobility.
Data Source
AI summary
Multiple access wireless communication networks/infrastructures are virtualized in telecommunications environments. A system replicates a cell identifier associated with a macro base station device to create a virtual base station device presence for a set of network devices included in the multiple access wireless communication network and thereafter facilitates communication with the multiple access wireless communication network, the set of network devices, and a mobile device through the created virtual base station presence.