Open RAN (O-RAN)

Open RAN Overview

Open RAN is a recent trend in the telecommunications market (especially in the 5G area), aiming at the realization of the following key objectives:

  • splitting of a base station into several functional components, including central unit (CU), distributed unit (DU), and a remote unit (RU);
  • opening interfaces to enable interoperability (especially Open Fronthaul);
  • disaggregating software from hardware in the RAN domain;
  • introducing advanced automation into the RAN system by means of an abstracted entity to manage the radio networks, i.e. RAN Intelligent Controller (RIC) which serves as a platform for xApps (optimization applications in the RAN domain) and rApps (optimization applications in the management plane) using AI/ML.

Rimedo Labs contribute to the Open RAN topic in the following ways:

  • xApp/rApp developments (RRM/SON algorithms design) – contact us to learn more;
  • live and pre-recorded training delivery – see the agenda of O-RAN System Training here;
  • active contribution to SD-RAN project as an ONF Member – read more here: Rimedo Labs joins ONF;
  • delivering free and paid webinars – watch some on our youtube channel;
  • content production in the form of blogs and whitepapers.

Below you can find out about our services and technical content related to Open RAN, which you can read, watch and download.

Note: you may find various terms related to Open RAN in the literature. „Open RAN” is used to refer to the overall movement of opening up the RAN by disaggregating hardware and software and creating open interfaces between them. The term „OpenRAN” is used by Telecom Infra Project. „O-RAN” with a hyphen is used by the O-RAN Alliance. „ORAN” is typically just used as a hashtag.

O-RAN Services

Our services in the Open RAN area include:

Why Us?

O-RAN Resources

Below we gathered the technical content, we produce on a daily basis, all related to Open RAN topic, so that you have a single point of reference for our work.
You can find whitepapers, posters, blog articles, videos and slide-decks.

O-RAN Materials

Here you can find our recent downloadable items, like whitepaper and A3 poster. You can also find out about our O-RAN System Training and download the agenda.

Note: To download the items you’ll be transferred to a separate landing page. 

O-RAN Articles

In this section, we gather all our blog posts related to Open RAN and O-RAN.

Notes: To expand, click „load-more”. If you are interested in all our blog entries, also on other topics, like 5G, 6G, and #AllThingsWireless, visit the main page of our blog.


RAN Intelligent Controller (RIC): Overview, xApps, and rApps

RAN Intelligent Controller (RIC) is to enable abstracting out part of their functionality from the eNB or gNB that was traditionally hosted at the base station in the form of xApps or rApps. These functions include functionality like mobility management or interference management, which are moved to the external controller. This controller then enforces policies towards the RAN elements and controls them using the open interface.
Read More

O-RAN Non-RT RIC: Architecture and rApps

The goal of Non-RT RIC is to support intelligent RAN optimization by providing policy-based guidance, model management, and enrichment information to the Near-RT RIC function so that the RAN can be optimized. Non-RT RIC works within the management plane and operates on seconds and minutes timescale. In this post, we provide the architecture of the Non-RT RIC and discuss the example applications, called rApps.
Read More

Open RAN (O-RAN) Webinar Collection

In the past couple of months, we delivered several webinars together with Intelefy University related to Open RAN. In this post, you can find the collection of them, in the particular order, where the first one serves as an overview and high-level discussion, whereas the next ones dig more and more into details of O-RAN, as specified by O-RAN ALLIANCE.
Read More

O-RAN Videos

In this section, we gathered the videos from webinars and events, in which we participated related to the Open RAN / O-RAN topic.

Note: to watch other videos on complementary topics, visit our youtube channel.

O-RAN Architecture and RIC

In this webinar, we cover the following topics:
✔︎ O-RAN architecture and deployment options
✔︎ RAN Intelligent Controller (RIC)
✔︎ Near-RT RIC and E2
✔︎ Non-RT RIC and A1

5G, Private Networks, and Open RAN

In this webinar, we will cover the following topics:
✔︎ Mobile wireless systems evolution
✔︎ 5G overview & 5G complexity
✔︎ Private mobile networks
✔︎ From RAN to O-RAN transition

O-RAN Architecture and Use Cases

In this webinar, we cover the following topics:
✔︎ O-RAN Architecture
✔︎ RAN Intelligent Controller (RIC)
✔︎ O-RAN Use Cases
✔︎ Traffic Steering Use Case

O-RAN Traffic Steering xApp Implementation 

In this webinar, we cover the following topics:
✔︎ Review of the O-RAN and ONF’s SD-RAN architecture
✔︎ O-RAN use cases analysis
✔︎ Traffic Steering use case – rationale and performance analysis
✔︎ SD-RAN based implementation – Live lab

O-RAN Slide-decks

Here you can find slide-decks for presentations related to O-RAN. Some of them come from our public speeches or webinars, while others are collection of material we wanted to share with you.

Note: To download the items you’ll be transferred to a separate landing page.