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O-RAN RIC

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.
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non-rt-ric

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.
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webinars-collection-post

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.
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whitepaper-post

„The O-RAN Whitepaper”

Open RAN, as a new approach to building mobile networks, offers faster innovation and the possibility of lowering costs. This whitepaper provides an overview of Open RAN in general, and O-RAN specifically. The O-RAN concept, relevant standardization, and ecosystem players are introduced. The architecture as defined by the O-RAN Alliance is described. Near-Real-Time RAN Intelligent Controller (RIC) along with the idea of xApps is discussed. The use cases for O-RAN are overviewed with a particular focus on Traffic Steering.
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Rel-18 post

3GPP Rel-18: The Preliminary Discussions

According to 3GPP the prioritization process on Rel-18 features should be completed by the end of 2021 - with the Rel-18 Package Approval scheduled for December 2021. As of now, the decisions are still focused on the Rel-17 schedule. Meanwhile, some Rel-18 Stage 1 studies are underway.
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O-RAN Use Cases

O-RAN Use Cases: Traffic Steering

The O-RAN Alliance specifies certain use cases with requirements that provide a landscape for the development of xApps. This post provides an overview of the use cases and discusses in more details one of them, namely Traffic Steering. This use case is being developed in various open source implementations as one of the initial practical applications within O-RAN framework.
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near-rt-ric

O-RAN Near-Real-Time RIC

This post describes the near-Real-Time RAN Intelligent Controller. RIC is the heart of the O-RAN system, where the intelligence sits allowing to control and optimize the radio network. The RRM algorithms can be deployed at near-RT RIC by means of xApps defined on a per use case basis.
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rimedo-joins-onf

RIMEDO Labs joins the ONF to collaborate on the O-RAN compliant RIC

RIMEDO Labs, has joined the ONF, a non-profit operator-led consortium driving the transformation of access and edge network infrastructure. Within ONF, RIMEDO joins the SD-RAN project focusing on building open-source components for the Open RAN space in compliance with the O-RAN Alliance’s architecture and specifications. The key element of the SD-RAN project is the development of an open-source near-Real-Time RIC along with a set of exemplar xApps for controlling the RAN.
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O-RAN Architecture

O-RAN Architecture, Nodes, and Interfaces

This post discusses the nodes and interfaces defined by O-RAN Alliance. The provided implementation options visualize one of the benefits of O-RAN, namely the implementation flexibility with the open O-RAN architecture. Those options from one side provide the flexibility in implementation and various vendor configurations, but the price to pay for this variety is that you need a way to identify the internal nodes.
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O-RAN Introduction

Introduction to O-RAN

Currently, one of the hot topics in the telecoms world is Open RAN. This post provides an introduction to O-RAN, where we set up the scene and show basics like characteristics of O-RAN, the basic building blocks as well as entities involved in the development of this concept.
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