Category: Mobile Networks


„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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Rimedo Labs joins 5gSTAR, a 5G cybersecurity project

Rimedo Labs joins forces with the Military institute of Communications (Wojskowy Instytut Łączności), Politechnika Poznańska and Grandmetric to work on 5gSTAR, an innovative research project funded by Narodowe Centrum Badań i Rozwoju on cyber-security in 5G radio
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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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RAN Intelligent Controller (RIC): Overview, xApps, and rApps

RAN Intelligent Controller (RIC) is to enable abstracting out part of functionality from the eNB or gNB that was traditionally hosted at the base station in the form of xApps or rApps in the O-RAN architecture. The functions, to which we relate here in the RAN domain include e.g., mobility management or interference management. The decisions are made in the xApps, and RIC then enforces policies towards the RAN elements and controls them using the open interface, namely E2. In this post, we elaborate on the RIC, its functional split, xApps, and rApps.
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