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5G/NextG Week 7

By Jeff Acevedo, Sanskar Shah, Nikhil Sampath, Ryan Lin, Sreeram Mandava, Aleksa Samardzija, Stanislav Ceman

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Project Objectives:

Open source implementation of 5G
Network control and management applications

Resilience
Security
Topology Service

Done in context of Open RAN (O-RAN)

Ryan Speaking Script:

Topology service: retrieves topology for the day and changes based

Hello everyone, we’re the 5G/Next-G group.

In terms of our goals for this project we want to create an open-source implementation of a 5G network which isn’t easy but allows for more flexible experimentation. We then plan to develop software applications that can interface with the network for specific attributes such as resilience of security (which we’ll explain further on in the presentation). And this is all within the context of O-RAN architecture.

What is O-RAN? It stands for Open Radio Access Network and in short it is a disaggregated way of structuring a radio network which can be useful for various purposes. At the bottom, we have UEs or user equipment such as your phone or computer which connect to a network. This connects to the RUs or Radio Units which act as antennas to receive signals. Both of these are Custom-made hardware. The CU/DU are where the baseband processing of packets happen. These can be either commercial hardware or custom hardware. Finally we have the SMO or Service Management Orchestration which controls the rest of the aforementioned components.

The goal is to create an open source software implementation of the RU, DU, CU and CORE as well as creating applications in the SMO to interact with the RAN

All our work is at the forefront of O-RAN research

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SMO

O-DU

O-CU

O-RU

O-DU

O-RU

O-RAN Radio Unit

O-RAN Distributed Unit

O-RAN Central Unit

Service Management

Orchestration

Hosts rApp

User Equipment (UE)

Core

Internet

rApp

General Purpose Hardware (GPH)

GPH + Custom Hardware

Custom Hardware

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Progress Report

Explored topology visualization with D3
Changed the topology service
Set up RabbitMQ on nodes
Created a topology generator

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RabbitMQ

Open source message broker
Used to send topology initialization and updates and security alarms
Publisher/subscriber service

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Topology Service

Cleaned topology
Created topology generator
Changed the format for faster search
Revamped old topology service to handle new format

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Future plans

Complete messaging system for all types of messages
Implement D3 for topology visualization
Work on topology service to handle calls and requests
Work on propagation of graph changes to necessary elements
Spectrum sensing