Studying the Functioning of O-RAN-Based xApps in Closed-Loop Control of RAN Using DRL-Based RAN Slicing

Team Members

• Soham Sitapara (202251131)
• Sudhanshu Bharti (202251134)
• Vasani Om (202251154)
• Ishan Raj (202251174)

Project Description

This project explores the implementation and analysis of Open Radio Access Network (O-RAN) using the ns-O-RAN simulation platform. It focuses on integrating Near-RT RIC and Non-RT RIC components with custom xApps to enable closed-loop control for 5G networks.

The study employs mmWave technology and E2 termination to achieve real-time communication between RAN components, emphasizing:

• Network optimization
• Resource management
• Low latency and high reliability

The project demonstrates the practical viability of O-RAN architecture and highlights its advantages over traditional RAN solutions, such as:

• Vendor neutrality
• Modularity and flexibility
• Integration of AI/ML solutions for dynamic resource allocation

Key Components:

1. ns-3 Integration: Utilizes the ns3-mmWave version and ns-O-RAN module for detailed 5G simulations.
2. E2 Interface: Supports real-time communication between RIC and RAN components.
3. RIC and xApp Setup: Implements xApps for control logic and performance optimization.
4. Closed-Loop Control: Simulates traffic steering and mobility management using E2 Service Models.

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Hardware and Software Description

Simulation Environment

• e2term Terminal: Logs E2AP interactions for diagnostics and monitoring.
• xApp Terminal: Executes custom xApps for dynamic optimization.
• ns-o-ran Terminal: Integrates ns-3 with RIC components for seamless simulation.

System Configuration

1. Central eNB: LTE-based central node.
2. Four gNBs: Positioned at 1000m apart, connected via the ns-3 environment.

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Contributions and Acknowledgment

We acknowledge the guidance and support of Dr. Bhupendra Kumar and the resources provided by IIIT Vadodara, which were instrumental in the success of this project.