CBASC Energy-Aware Edge UPF Instantiation in Converged Broadband
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Solution Overview
Problem
Legacy HFC networks struggle to meet the demands of high-speed symmetrical Gbps services and face competition from fiber-based access technologies, necessitating a convergence of broadband access solutions to enhance performance and competitiveness.
Innovation Solution
A converged broadband access service controller (CBASC) interacts with multi-domain access/transport controllers via APIs, coordinating traffic steering between disaggregated DU and CU networking points, enabling dynamic network slicing and efficient resource allocation based on learning processes and traffic patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If legacy HFC networks are used to provide broadband access services, then deployment cost is reduced and existing infrastructure is utilized, but network performance and service quality deteriorate when meeting high-speed symmetrical Gbps service demands
Solution Approach 1:
The network is segmented into multiple access technologies (HFC, PON, fiber-based access) that can be independently deployed and managed. The CBASC controller divides traffic management functions across these different access domains, allowing each segment to operate at its optimal performance level while contributing to the overall network capacity.
Solution Approach 2:
The CBASC controller is designed as a universal platform that can manage multiple types of access networks (HFC, PON, fiber) through a single unified interface. This multi-functional controller enables legacy HFC infrastructure to be part of a broader multi-access network solution, maintaining cost-effectiveness while achieving Gbps performance through aggregated capacity.
2Reliability
If fiber-based access technologies are deployed to meet high-speed service demands, then network performance and service quality are improved, but deployment cost and infrastructure complexity increase
Solution Approach 1:
The network deployment strategy is made dynamic through the CBASC controller, which can adaptively allocate traffic across different access technologies based on real-time performance requirements and cost considerations. This allows fiber-based access to be deployed selectively in high-performance areas while HFC serves other regions, optimizing the overall cost-performance balance.
Solution Approach 2:
The CBASC controller acts as an intermediary that coordinates between different access technologies (fiber, PON, HFC) and the core network. It enables seamless traffic steering and resource allocation across these diverse access domains, allowing fiber-based access to be integrated into the broader network architecture without requiring complete replacement of existing infrastructure.
3Productivity
If multiple access technologies are integrated in a converged network, then service quality and network capacity are enhanced, but network complexity and control difficulty increase
Solution Approach 1:
The CBASC controller merges the control functions of multiple access technologies (HFC, PON, fiber) into a single unified platform. This consolidation combines traffic management, resource allocation, and service delivery functions across all access domains, reducing operational complexity despite the diversity of underlying technologies.
Solution Approach 2:
The CBASC controller implements feedback mechanisms that continuously monitor network performance, traffic patterns, and resource utilization across all access technologies. This feedback enables automated decision-making for traffic steering and resource allocation, reducing the need for manual intervention and simplifying the management of complex multi-access networks.
4Loss of energy
If traffic is dynamically steered across multiple access domains, then resource utilization and energy efficiency are improved, but control complexity and processing requirements increase
Solution Approach 1:
The CBASC controller implements self-service capabilities through automated traffic steering algorithms that make real-time decisions based on monitored network conditions. The system autonomously allocates traffic across access domains to optimize energy efficiency without requiring constant manual control, reducing operational complexity while maintaining intelligent resource management.
Solution Approach 2:
The controller dynamically changes traffic routing parameters and resource allocation settings based on real-time network conditions, energy consumption metrics, and service requirements. This adaptive parameter adjustment enables energy-efficient operation across multiple access technologies while the automated nature of the changes reduces the perceived control complexity.
Data Source
AI summary
A converged broadband access service controller (CBASC) provides for energy efficiency monitoring in a 5G fixed-mobile convergence (FMC) network including wireless and wireline convergence (WWC). The CBASC receives energy efficiency metrics via APIs with an SMO, a PCMS, a DCMS, and an ACMS; determines composite 5G broadband access network energy consumption based on the energy efficiency metrics; and in response to the composite 5G broadband access network energy consumption exceeding an energy efficiency threshold for instantiating an edge user plane component, trigger a CCSO to launch the edge user plane component.