RAN Slice Bandwidth Reallocation for Dynamic QoS Demands
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Solution Overview
Problem
Current wireless communication networks, particularly 5G and beyond, lack efficient and dynamic bandwidth allocation methods in network slices, leading to excessive resource utilization and inadequate service delivery.
Innovation Solution
Implementing an analytics-based Software-Defined Networking (SDN) system with Quantum Key Distribution (QKD) links to dynamically reallocate Resource Blocks (RBs) among network slices, utilizing RAN Slice Managers and Slice Agents for real-time bandwidth management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If network slicing is implemented to allocate resources to different devices, then resource utilization efficiency is improved, but device complexity and management overhead increase
Solution Approach 1:
The patent introduces a centralized SDN controller as an intermediary between network elements and slice managers. This controller abstracts the complex slice management functions, handling resource allocation, QoS enforcement, and coordination across multiple network slices. By centralizing control logic in the SDN controller, the patent reduces distributed complexity while maintaining efficient resource utilization across slices.
Solution Approach 2:
The patent segments network management functions into distinct components: slice agents in individual network elements, slice managers for specific slices, and a central SDN controller. This segmentation allows independent management of each slice while maintaining overall coordination, reducing the complexity burden on any single component while improving resource allocation efficiency.
2Device complexity
If static bandwidth allocation is used in network slices, then device complexity is reduced, but adaptability to varying user demands deteriorates
Solution Approach 1:
The patent implements dynamic bandwidth allocation where slice managers continuously monitor resource usage and user demands, adjusting bandwidth allocation in real-time. The SDN controller receives feedback from network elements and dynamically reconfigures resource blocks across slices based on current traffic patterns and QoS requirements, enabling the network to adapt to varying demands without increasing device complexity.
Solution Approach 2:
The patent establishes feedback loops where slice agents report resource usage and QoS metrics to slice managers, which in turn communicate with the central SDN controller. This feedback mechanism enables the system to detect changing user demands and automatically adjust bandwidth allocation, providing adaptability while keeping individual device complexity low through centralized decision-making.
Data Source
AI summary
Facilitating radio access network on-demand dynamic bandwidth allocation in advanced networks is provided herein. Operations of a system include determining that a group of network slice resources associated with network equipment fail to satisfy a specification applicable to a user equipment. The operations can also include extracting a first group of resource blocks from a first network slice resource of the group of network slice resources. Further, the operations can include reallocating the first group of resource blocks to a second network slice resource of the group of network slice resources. A combination of the first group of resource blocks and a second group of resource blocks of the second network slice resource is determined to satisfy the specification applicable to the user equipment.