Tag: RAN


How can Energy Saving and Traffic Steering cooperate in O-RAN?

This blog post discusses in detail two options for notification of the TS-xApp on the ES actions from the O-RAN specifications perspective. The first option is to utilize the A1 interface to send policies with a “FORBID” clause for cells that will be switched off, to indicate TS-xApp that users should be removed from this cell. The second approach is to utilize the E2SM-CCC, where the TS-xApp listens to the changes in O-CES Management Function.
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Hierarchical Traffic Management in O-RAN – Vehicular Scenario picture

Hierarchical Traffic Management in O-RAN – A Vehicular Scenario

Vehicular communication presents a complex set of challenges within the realm of 5G and future networks, primarily due to its ever-changing temporal and spatial dynamics. This use case places specific and demanding requirements on mobile networks, as it includes a diverse range of services with varying needs. In this blog, we address this problem by flexible utilization of both Traffic Management rApp (TM-rApp) and Traffic Steering xApp (TS-xApp), which could help in V2X scenarios.
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Energy Saving-rApp control over Traffic Steering-xApp

Energy consumption is a critical aspect of any service in these modern times. In telecommunications, a flexible approach to network planning, control, and management is extremely beneficial in this aspect. The concept of O-RAN enables the creation of algorithms that allow energy saving in a manner independent of the equipment or RAN software solution used. In this blog post, we present an innovative approach to energy saving using the RIC, which is based on the direct cooperation of Traffic Steering xApp and Energy Saving rApp.
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O-RAN Deployment Scenarios

Deployment scenarios that the O-RAN ALLIANCE specifies, define how to compose the elements of O-RAN architecture in the actual deployment in the network within the cloud and physical locations. One of the key aspects is that the general split from the deployment perspective is the open Fronthaul, with the the separation between O-Cloud deployed entities, and the PNF, for O-RU component. In this blog post, we are providing an overview of different scenarios and deployment options as presented in the O-RAN resources.
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O-RAN Network Energy Saving: RF Channel Switching

In this blog post, we provide the description of an algorithm that can be realized as an rApp in the O-RAN architecture aimed at improving the network’s EE through intelligent RF channels on/off switching. First, we provide a general framework for long-timescale EE optimization which can be done in Non-RT RIC. We then propose the implementation of the RF Channel Switching algorithm within the O-RAN framework. Finally, we discuss some opportunities and challenges.
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ML Framework in O-RAN

One of the key aspects of the Open RAN is embedding native intelligence within the O-RAN framework. To this end, AI/ML plays a crucial role. Some of the goals for AI/ML within RAN are: decreasing the manual effort of going through large data amounts to diagnose issues and make decisions, or predicting the future to take proactive actions. This is being addressed from the beginning within O-RAN ALLIANCE. In this post, we discuss the overall framework for machine learning within O-RAN, including architectural aspects and use cases.
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