Dynamic Resource Partitioning in 5G Multi-Carrier RAN
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Solution Overview
Problem
Current 5G wireless systems face challenges in dynamically managing resources across multiple carriers to support diverse traffic scenarios, such as high data rates and low latency, while efficiently utilizing spectrum and reducing latency and battery consumption.
Innovation Solution
Implementing a software-defined network (SDN) with a controller that facilitates dynamic resource partitioning and sharing among carriers, using a common control plane and dedicated user planes to optimize resource allocation based on service requirements and policies, enabling intelligent service delivery and network slicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic resource partitioning is implemented across multiple carriers, then spectrum utilization and data rates are improved, but network complexity and management difficulty increase
Solution Approach 1:
The network is segmented into multiple carriers, each with its own control plane and user plane, allowing independent resource management and allocation. This segmentation enables flexible partitioning of radio resources across different carriers based on demand, improving spectrum utilization while maintaining manageable complexity through modular architecture
Solution Approach 2:
The system implements dynamic resource partitioning where carriers can be added, removed, or modified in real-time based on traffic conditions and service requirements. The control plane dynamically allocates resources across carriers, enabling the network to adapt to changing demands and optimize spectrum usage without requiring complex static reconfiguration
2Speed
If multiple carriers are used to support diverse traffic scenarios, then data rates and latency performance are improved, but resource management complexity increases
Solution Approach 1:
The resource management function is segmented and distributed across multiple carriers, with each carrier managing its own resources independently. This distributed approach reduces the complexity burden on any single management entity while enabling optimized resource allocation for different traffic scenarios across multiple carriers
Solution Approach 2:
The system dynamically changes resource allocation parameters across different carriers based on traffic conditions and service level agreements. By adjusting parameters such as bandwidth, priority, and resource partitioning ratios in real-time, the network optimizes data rates and latency performance without requiring complex manual intervention
3Productivity
If carrier aggregation is implemented, then spectrum utilization and network capacity are improved, but latency and battery consumption increase
Solution Approach 1:
The control plane is segmented into carrier-specific instances, allowing independent control and faster decision-making for each carrier. This segmentation reduces the latency overhead associated with centralized control and enables more efficient resource allocation, thereby reducing overall system latency while maintaining high network capacity through carrier aggregation
Data Source
AI summary
Dynamic sharing of pooled radio access network (RAN) resources can be divided amongst different tenant carriers according to a service level agreement and/or a host carrier policy. The carriers can share the RAN with the host carrier while utilizing their own core network and service delivery platform. The hosting carrier can utilize policies to provide guidelines on how to share among the tenant carriers. Additionally, the hosting carrier can also provide services for internet-of-things devices based on security requirements with different firewall, and/or authentication requirements.