Cloud RAN Access Unit Configuration in Virtualized Environments
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Solution Overview
Problem
Existing Cloud RAN infrastructure deployment in distributed environments faces challenges such as managing antenna allocation, configuration exchange between containers, and ensuring performance constraints like latency and addressing information sharing between CU, DU, and RU units, particularly in Kubernetes-based containerization solutions.
Innovation Solution
A method for configuring access units in a virtualized environment that involves determining suitable operating software applications based on placement criteria like security, quality of service, energy consumption, and latency, using a test to ensure compliance with constraints, and transmitting configuration messages to facilitate data routing between units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If processing operations are centralized in CU units, then cost and management are improved, but vulnerability and latency increase
Solution Approach 1:
The patent segments processing operations into three distinct units (CU, DU, RU) with different functions and locations. The CU handles centralized management tasks, while DU and RU are distributed closer to radio stations for lower latency and reduced vulnerability. This segmentation allows the system to balance centralized management benefits with distributed reliability advantages.
2Reliability
If processing operations are distributed closer to radio stations, then latency and vulnerability are reduced, but cost and management complexity increase
Solution Approach 1:
The patent divides the system into hierarchical units (CU, DU, RU) where management functions are segmented and distributed. The CU maintains centralized management for strategic decisions, while DU and RU handle local operations independently, reducing management complexity despite the distributed architecture.
3Adaptability or versatility
If containerization techniques are used for Cloud RAN deployment, then cost and flexibility are improved, but antenna allocation and configuration exchange between containers become problematic
Solution Approach 1:
The patent introduces a mediation entity as an intermediary component that handles antenna allocation and configuration exchange between containers. This mediator simplifies the complex interactions required for antenna management in containerized environments, enabling flexible deployment while reducing the complexity of configuration exchanges between CU, DU, and RU units.
4Productivity
If Kubernetes-based containerization is implemented, then deployment and scaling are improved, but performance constraint verification and configuration management become difficult
Solution Approach 1:
The mediation entity acts as an intermediary that manages configuration exchanges between Kubernetes pods containing different units (CU, DU, RU). It handles the complexity of configuration management and performance constraint verification, allowing the Kubernetes-based deployment system to maintain high productivity while reducing configuration management complexity through standardized mediation protocols.
Data Source
AI summary
A process implemented by an administration entity for configuring an access unit of a communication network in a virtualised environment having an operating software application. The process includes receiving, from a mediating entity of the operating software application, a log message of the operating software application associating an identifier of the operating software application and an identifier of a node supporting the operating software application. Prior to or following receipt of the log message, the administration entity determines an operating software application for hosting the access unit based on a test relating to a placement criterion relating to a data stream conveyed by the access unit. The administration entity then emits, to the mediating entity of the determined operating software application, a message for configuring the access unit in the determined operating software application, the message including an identifier of at least one other access unit of the communication network.