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RIMEDO Labs Blog

xapp-implementation-blog

xApp Implementation: O-RAN Traffic Steering Use Case

In this post, we focus on the implementation of a simple xApp tailored for the traffic steering use case. The goal of this xApp is to support the network providers to reassign the traffic from one gNB to the other in order to meet some predefined criteria. We will see some results of the great opportunity offered by Open RAN that the operator can easily install, modify or remove the xApp when needed.
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ci-cd-blog

CI/CD in O-RAN design

In this post, we briefly present, how the concept of open RAN meets immediately one of the key approaches in distributed software design, mainly CI/CD. Clearly, these two domains cannot be compared directly, but as we will see, the O-RAN concept modifies significantly the whole software design process.
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Open RAN challenges post

Challenges to Open RAN

Open RAN is the separation of software functionality from the underlying hardware. This is called “disaggregation.” It is also the process of defining functional blocks in the network and clearly and precisely specifying the interfaces between those functional blocks. Most who study such things believe it to be true. But before we break out the Champaign, we should be a bit more circumspect and evaluate the threats to Open RAN. What might prevent Open RAN from reaching its potential?
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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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what is open RAN

What is Open RAN?

Like almost everything in Telecom's, Open RAN is complicated. It's not a single idea. It's not a single product or service. It's not an optimization technique or path towards improved efficiency. It’s hardly even an agreed term. Open RAN is essentially 2 foundational ideas: 1) The disaggregation of network functionality from the underlying hardware. 2) The specification of discrete functional blocks having well-defined interfaces. In other words, modularity.
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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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O-RAN 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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