Dynamic RAN Component Redeployment for Latency and Power Tradeoffs
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Solution Overview
Problem
Current 5G network technologies face challenges in dynamically meeting latency, power, availability, and quality of service requirements due to limitations in redeploying radio access network components and managing redundant links within a data center hierarchy, leading to increased power consumption and virtual infrastructure costs.
Innovation Solution
The deployment of virtualized distributed units (VDUs) and virtualized centralized units (VCUs) within a data center hierarchy, which allows for intelligent redeployment of radio access network components closer to user equipment or core network components, and the dynamic reassignment of these components across different data center layers to meet changing requirements, along with the automatic generation of redundant links to mitigate server and link failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If radio access network components are redeployed closer to user equipment to satisfy latency requirements, then latency is reduced, but power consumption and infrastructure costs increase
Solution Approach 1:
The patent implements dynamic redeployment of virtualized radio access network components (DUs and CUs) across multiple data center locations based on real-time network conditions, traffic patterns, and service requirements. This allows the system to optimize the balance between latency and power consumption by moving components closer to users when low latency is critical and farther when power efficiency is prioritized.
Solution Approach 2:
The system changes deployment parameters (location, configuration) of virtualized network components based on varying service requirements, traffic conditions, and performance targets. By dynamically adjusting where DUs and CUs are instantiated in the data center hierarchy, the system can meet different latency and power consumption requirements for different network slices and services.
2Use of energy by moving object
If radio access network components are redeployed closer to core network components to satisfy power requirements, then power consumption is reduced, but latency increases
Solution Approach 1:
The system dynamically adjusts the deployment location of virtualized network components based on real-time power and latency requirements. When power efficiency is the priority, components are consolidated at data centers closer to the core network. When low latency is required, components are redistributed to edge data centers closer to users, thus dynamically optimizing the power-latency tradeoff.
Solution Approach 2:
The system modifies deployment parameters of DUs and CUs based on changing network conditions and service requirements. By changing where virtualized components are instantiated in the data center hierarchy, the system can satisfy different power consumption and latency requirements for different network slices and time periods.
3Reliability
If redundant links are generated to mitigate server and link failures, then system availability is improved, but infrastructure complexity and costs increase
Solution Approach 1:
The patent creates virtual copies of network components (DUs and CUs) across multiple data center locations. These virtual copies serve as redundant instances that can take over if the primary instance fails. This virtualization-based redundancy provides high availability without requiring duplicate physical infrastructure, thus reducing complexity compared to traditional hardware-based redundancy.
Solution Approach 2:
The system introduces a virtualization layer and orchestration mechanism that manages redundancy abstractly. Instead of directly managing complex physical redundant links and failover mechanisms, the system uses virtualized network functions and software-based routing to provide redundancy and fault tolerance, simplifying the infrastructure management.
4Adaptability or versatility
If virtualized network functions are deployed across different data centers with varying electrical distances, then flexibility and adaptability are improved, but management complexity increases
Solution Approach 1:
The patent creates a universal virtualized network function platform that can be deployed across multiple data centers with different characteristics (location, capacity, connectivity). This universal platform allows the same VNFs to operate flexibly in diverse environments, adapting to different electrical distances, network conditions, and service requirements without requiring environment-specific customizations.
Solution Approach 2:
The system implements feedback mechanisms that monitor network conditions, performance metrics, and resource availability across distributed data centers. This feedback enables dynamic decision-making about where to deploy and migrate virtualized network functions, allowing the system to adapt to changing conditions while maintaining manageable complexity through automated control loops.
Data Source
AI summary
Methods and apparatuses for improving telecommunications services by intelligently deploying radio access network components and redundant links within a data center hierarchy to satisfy latency, power, availability, and quality of service requirements for one or more network slices are described. The radio access network components may include virtualized distributed units (VDUs) and virtualized centralized units (VCUs). To satisfy a latency requirement for a network slice, various components of a radio access network may need to be redeployed closer to user equipment. To satisfy a power requirement for the network slice, various components of the radio access network may need to be redeployed closer to core network components. Over time, the components of the radio access network may be dynamically reassigned to different layers within a data center hierarchy in order to satisfy changing latency requirements and power requirements for the network slice.