Category: Wireless Technologies


Policy-based Traffic Steering xApp implementation within O-RAN

In this post we dig into the technical details of the Traffic Steering xApp implementation using A1 Policy Control on ONF's SD-RAN. We discuss the concept, triggers, implementation details and example operation along with a demo video.
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Rimedo Labs to Integrate and Open Source TS xApp with ONF’s SD-RAN

Rimedo Labs has integrated an xApp into the SD-RAN RIC from ONF to demonstrate the operation of the A1 interface as defined by the O-RAN Alliance. This Is the first xApp integrated with the ONF’s SD-RAN platform utilizing the A1 interface for policy control. As part of the ONF’s SD-RAN project, the joint collaboration supports a broad range of automation services in the form of software services, called xApps by O-RAN, that run on the RAN intelligent controller (RIC).
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„The O-RAN Whitepaper 2022 – RAN Intelligent Controller”

RAN Intelligent Controller (RIC) is one of the key elements in the O-RAN architecture, which allows feeding an „external” intelligence into the operations of the radio network. It creates a platform for which the software companies could provide per-use case AI-powered algorithms to make way for, among others, radio resources usage or procedure optimizations. This whitepaper provides an overview of the RIC, discusses its functional split into Non-Real-Time and Near-Real-Time entities along with the concept and examples of rApps and xApps.
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V2X within the 3GPP standards – Physical Layer, Radio Resource Allocation, Synchronization, and QoS Management

This post presents a more detailed description of the sidelink radio interfaces proposed in LTE-V2X (Release 14/15) and its successor – NR-V2X. The focus will be mostly on the physical layer and radio resource allocation aspects, with some information on the synchronization possibilities and Quality-of-Service (QoS) management, also provided.
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5G-Advanced: 3GPP Rel-18 SA2 Features

On the 20th of December 2021, 3GPP SA TSG approved a total of 28 WIs/SIs for the SA2 Rel-18 at the SA plenary meeting #94e. 3GPP Rel-18 is the first release of the 5G-Advanced standard. The approved projects include TSN, NW slicing, support for edge computing, NW automation, location services, AI and ML-based services, XR services to name a few. In this post, we elaborate on each of the approved WI/SI entering 5G-Advanced standardization.
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3GPP Rel-18: 5G-Advanced RAN Features

3GPP Rel-18 is the first release of the 5G-Advanced standard. On the 17th of December 2021, 3GPP TSG RAN plenary (3GPP RAN TSG #94e) approved 28 Release-18 projects (i.e., Study- and Work-Items, SI/WI) with the following split among RAN groups: 12 RAN1-led projects, 10 RAN2-led projects, 5 RAN3-led projects, and 1 RAN4-led project. Those topics include AI/ML for NR and NG-RAN, NTN and MIMO enhancements, evolution for sidelink, UAV, RedCap, SON, QoE, XR services, to name a few. In this post, we elaborate on each of the approved projects entering 5G-Advanced standardization.
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