SD-RRH Controller Dynamic Resource Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communications networks face challenges in reducing costs and enhancing operational flexibility due to the fixed connection arrangement between remote radio heads (RRHs) and distributed base band units (BBUs), which limits dynamic reconfiguration of network resources and requires manual setup and maintenance, leading to over-provisioning of resources.
Innovation Solution
The implementation of a software-defined remote radio head (SD-RRH) controller that enables dynamic allocation and management of RRH resources through software interfaces, allowing for the creation of software-defined virtual RRHs and flexible resource sharing between different C-RAN domains, thereby optimizing network resource utilization and reducing operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fixed point-to-point connection arrangement is used between RRHs and BBUs, then system stability and simplicity are improved, but operational flexibility and adaptability deteriorate
Solution Approach 1:
The patent segments the fixed point-to-point connection into a hierarchical structure with a centralized BBU pool and a shared RRH pool, introducing a control plane that logically segments resource management from physical connectivity. This allows multiple BBUs to share access to multiple RRHs through a common interface, transforming rigid point-to-point links into flexible pooled resources while maintaining connection stability.
Solution Approach 2:
The patent implements a universal BBU pool that can dynamically serve multiple RRHs and a universal RRH pool that can be accessed by multiple BBUs. The standardized interface enables any BBU to connect to any RRH, creating a multi-functional architecture where resources can be allocated dynamically based on network demands rather than being locked into fixed assignments.
2Device complexity
If manual setup and configuration is performed for RRH and BBU, then system complexity is reduced, but productivity and operational efficiency deteriorate
Solution Approach 1:
The patent implements self-service automation through a centralized control plane that automatically performs RRH discovery, BBU registration, resource allocation, and configuration management. The system autonomously handles connection establishment, resource provisioning, and network optimization without manual intervention, enabling rapid deployment and dynamic reconfiguration while reducing operational complexity through centralized intelligence.
3Quantity of substance
If RRH equipment and BBU are expanded to fulfill increasing demand, then network capacity is improved, but cost and resource utilization efficiency deteriorate
Solution Approach 1:
The patent merges multiple BBUs into a centralized BBU pool and multiple RRHs into a shared RRH pool, creating consolidated resource repositories that serve multiple functions and network sectors. This merging eliminates redundant equipment, allows dynamic sharing of resources across different service requirements, and optimizes resource utilization by allocating capacity from the pooled resources rather than maintaining separate dedicated infrastructure for each function.
Data Source
AI summary
A network infrastructure for a wireless communication system is disclosed. The infrastructure comprises a fronthaul network, an RRH pool, a radio service chain (RSC). The RSC is coupled to the fronthaul network and the RRH pool for allocating the RRH resources. The RSC comprises an orchestrator and a remote radio head (RRH) controller. The orchestrator is used for receiving a radio resource request from the at least one C-RAN and converting the radio resource request into a RRH specific command. The RRH controller is used for slicing the RRH resources to create virtual RRHs according to the radio resource request.