The document discusses 5G radio access network (RAN) fundamentals and architectures. It describes how the RAN has evolved from previous generations with more distributed and virtualized architectures in 5G. Key aspects of 5G RAN covered include centralized/virtualized RAN, Open RAN specifications, functional splits, and new concepts like network slicing and multi-access edge computing. Example use cases are also mentioned.
5G Network Architecture, Design and Optimisation3G4G
Presented by Prof. Andy Sutton, Principal Network Architect, Architecture & Strategy, TSO, BT at The IET '5G - State of Play' conference on 24th January 2018
*** SHARED WITH PERMISSION ***
Setting off the 5G Advanced evolution with 3GPP Release 18Qualcomm Research
In December 2021, 3GPP has reached a consensus on the scope of 5G NR Release 18. This is a significant milestone marking the beginning of 5G Advanced — the second wave of wireless innovations that will fulfill the 5G vision. Release 18 will build on the solid foundation set by Releases 15, 16, and 17, and it sets the longer-term evolution direction of 5G and beyond. This release will encompass a wide range of new and enhancement projects, ranging from improved MIMO and application of AI/ML-enabled air interface to extended reality optimizations and broader IoT support.
5G Network Architecture, Design and Optimisation3G4G
Presented by Prof. Andy Sutton, Principal Network Architect, Architecture & Strategy, TSO, BT at The IET '5G - State of Play' conference on 24th January 2018
*** SHARED WITH PERMISSION ***
Setting off the 5G Advanced evolution with 3GPP Release 18Qualcomm Research
In December 2021, 3GPP has reached a consensus on the scope of 5G NR Release 18. This is a significant milestone marking the beginning of 5G Advanced — the second wave of wireless innovations that will fulfill the 5G vision. Release 18 will build on the solid foundation set by Releases 15, 16, and 17, and it sets the longer-term evolution direction of 5G and beyond. This release will encompass a wide range of new and enhancement projects, ranging from improved MIMO and application of AI/ML-enabled air interface to extended reality optimizations and broader IoT support.
Beginners: 5G Terminology (Updated - Feb 2019)3G4G
An updated short presentation and video looking at 5G terminology that is being used in 3GPP standards and specifications.
Terms such as NG-RAN, NR, ng-eNB, en-gNB, RIT, SRIT, Option 3, etc. will be discussed
5G/NR wireless communication technology overview, architecture and its operating modes SA and NSA. Also an introduction to VoNR and other services overview of 5G network.
The key technologies of 5G namely MIMO and Network slicing are also explained.
The slides givews an overview of the Ericsson 5G training program for 2018, including fundamentals as well as technical overviews of 5G Core and 5G RAN.
This updated presentation/video looks at 5G Network Architecture options that have been proposed by 3GPP for deployment of 5G. It covers the Standalone (SA) and Non-Standalone (NSA) architecture. In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed.
A quick look at 5G System architecture in Reference point representation and in Service Based representation and also look at the different Network Functions (NFs) within the 5G System.
Presented by Andy Sutton, Principal Network Architect - Chief Architect’s Office, TSO, BT at IET "Towards 5G Mobile Technology – Vision to Reality" seminar on 25th Jan 2017
Shared with permission
Prof. Andy Sutton: 5G RAN Architecture Evolution - Jan 20193G4G
This presentation explores the evolution of GSM, UMTS and LTE radio access network architectures before a detailed review of the RAN architecture options for 5G. The functional decomposition of the 5G radio access network presents the network designer with many challenges with regards placement of RU, DU and CU nodes, all of which are discussed. The presentation concludes with a review of BT UK plans for 5G launch with a fully distributed RAN in support of an EN-DC architecture.
Presented by Professor Andy Sutton CEng FIET, Principal Network Architect, Architecture & Strategy, BT Technology at IET 5G - the Advent conference on 30 January 2019 | IET London: Savoy Place
*** SHARED WITH PERMISSION ***
Intermediate: 5G Applications Architecture - A look at Application Functions ...3G4G
In this tutorial we look at the 5G Applications architecture. We discuss 5G applications, application functions and application servers and how they fit together in a 5G Service Based Architecture
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
Beginners: Different Types of RAN Architectures - Distributed, Centralized & ...3G4G
In this basic tutorial we look at different types of RAN architectures that are always being discussed. We start with the Distributed RAN (D-RAN) and then look at Centralized and Cloud RAN (both referred to as C-RAN) architectures. We also quickly look at RAN functional splits for 5G and then tie this all together.
We also look at how Samsung and Nokia discuss these architectures in the context of 5G.
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
Open RAN Page: https://www.3g4g.co.uk/OpenRAN/
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
An overview of 5G NR key technical features and enhancements for massive MIMO, mmWave, etc.
Presented by Yinan Qi, Samsung Electronics R&D Institute UK at Cambridge Wireless event Radio technology for 5G – making it work
*** SHARED WITH PERMISSION ***
What is 5G NR all about? Check out this presentation to see all the key design components of this new unifying air interface for the next decade and beyond.
LTE Advanced carrier aggregation, it is possible to utilise more than one carrier and in this way increase the overall transmission bandwidth. These channels or carriers may be in contiguous elements of the spectrum, or they may be in different bands.
How to build high performance 5G networks with vRAN and O-RANQualcomm Research
5G networks are poised to deliver an unprecedented amount of data from a richer set of use cases than we have ever seen. This makes efficient networking in terms of scalability, cost, and power critical for the sustainable growth of 5G. Cloud technologies such as virtualization, containerization and orchestration are now powering a surge of innovation in virtualized radio access network (vRAN) infrastructure with modular hardware and software components, and standardized interfaces. While commercial off-the-shelf (COTS) hardware platforms provide the compute capacity for running vRAN software, hardware accelerators will also play a major role in offloading real-time and complex signal processing functions. Together, COTS platforms and hardware accelerators provide the foundation for building the intelligent 5G network and facilitate innovative new use cases with the intelligent wireless edge.
Beginners: 5G Terminology (Updated - Feb 2019)3G4G
An updated short presentation and video looking at 5G terminology that is being used in 3GPP standards and specifications.
Terms such as NG-RAN, NR, ng-eNB, en-gNB, RIT, SRIT, Option 3, etc. will be discussed
5G/NR wireless communication technology overview, architecture and its operating modes SA and NSA. Also an introduction to VoNR and other services overview of 5G network.
The key technologies of 5G namely MIMO and Network slicing are also explained.
The slides givews an overview of the Ericsson 5G training program for 2018, including fundamentals as well as technical overviews of 5G Core and 5G RAN.
This updated presentation/video looks at 5G Network Architecture options that have been proposed by 3GPP for deployment of 5G. It covers the Standalone (SA) and Non-Standalone (NSA) architecture. In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed.
A quick look at 5G System architecture in Reference point representation and in Service Based representation and also look at the different Network Functions (NFs) within the 5G System.
Presented by Andy Sutton, Principal Network Architect - Chief Architect’s Office, TSO, BT at IET "Towards 5G Mobile Technology – Vision to Reality" seminar on 25th Jan 2017
Shared with permission
Prof. Andy Sutton: 5G RAN Architecture Evolution - Jan 20193G4G
This presentation explores the evolution of GSM, UMTS and LTE radio access network architectures before a detailed review of the RAN architecture options for 5G. The functional decomposition of the 5G radio access network presents the network designer with many challenges with regards placement of RU, DU and CU nodes, all of which are discussed. The presentation concludes with a review of BT UK plans for 5G launch with a fully distributed RAN in support of an EN-DC architecture.
Presented by Professor Andy Sutton CEng FIET, Principal Network Architect, Architecture & Strategy, BT Technology at IET 5G - the Advent conference on 30 January 2019 | IET London: Savoy Place
*** SHARED WITH PERMISSION ***
Intermediate: 5G Applications Architecture - A look at Application Functions ...3G4G
In this tutorial we look at the 5G Applications architecture. We discuss 5G applications, application functions and application servers and how they fit together in a 5G Service Based Architecture
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
Beginners: Different Types of RAN Architectures - Distributed, Centralized & ...3G4G
In this basic tutorial we look at different types of RAN architectures that are always being discussed. We start with the Distributed RAN (D-RAN) and then look at Centralized and Cloud RAN (both referred to as C-RAN) architectures. We also quickly look at RAN functional splits for 5G and then tie this all together.
We also look at how Samsung and Nokia discuss these architectures in the context of 5G.
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
Open RAN Page: https://www.3g4g.co.uk/OpenRAN/
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
An overview of 5G NR key technical features and enhancements for massive MIMO, mmWave, etc.
Presented by Yinan Qi, Samsung Electronics R&D Institute UK at Cambridge Wireless event Radio technology for 5G – making it work
*** SHARED WITH PERMISSION ***
What is 5G NR all about? Check out this presentation to see all the key design components of this new unifying air interface for the next decade and beyond.
LTE Advanced carrier aggregation, it is possible to utilise more than one carrier and in this way increase the overall transmission bandwidth. These channels or carriers may be in contiguous elements of the spectrum, or they may be in different bands.
How to build high performance 5G networks with vRAN and O-RANQualcomm Research
5G networks are poised to deliver an unprecedented amount of data from a richer set of use cases than we have ever seen. This makes efficient networking in terms of scalability, cost, and power critical for the sustainable growth of 5G. Cloud technologies such as virtualization, containerization and orchestration are now powering a surge of innovation in virtualized radio access network (vRAN) infrastructure with modular hardware and software components, and standardized interfaces. While commercial off-the-shelf (COTS) hardware platforms provide the compute capacity for running vRAN software, hardware accelerators will also play a major role in offloading real-time and complex signal processing functions. Together, COTS platforms and hardware accelerators provide the foundation for building the intelligent 5G network and facilitate innovative new use cases with the intelligent wireless edge.
Evolving to an open C-RAN Architecture for 5Gkinsleyaniston
This white paper provides an assesment of the emerging C-RAN architecture with a focus on the practical evolitionary path that will take mobile operators from the distributed RANs of today to the fully-virtualized and open cloud RANs of future. For more details, please visit: https://www.fujitsu.com/us/products/network/products/smart-xhaul-solutions/index.html
Emerging Radio Technologies that are mmWave communications, Massive MIMO, Novel Waveforms and Multiple Access techniques etc. will provide ultra-high data rate traffic per user. However, only new Radio techniques implemented in lower layers of legacy networks could not guarantee the all 5G requirements, consequently the new network architecture along with new Radio technologies will emerge to fulfill all 5G requirements.
Umts femto access point for higher data rate and better quality of service to...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Recently Qualcomm announced its 5G (the fifth generation mobile communications) vision. 3GPP is going to finalize the 5G standard by 2018. 5G is scheduled to launch in around early 2020s. Even if it is not determined yet regarding the standard technology details, many researchers expect that 5G will transfer 1000 times more data, and thus, can connect billions of IoT (Internet of Things) devices at the same time. Key candidate technologies that enable 5G to support IoT devices connection are millimeter wave/MIMO (multiple input and multiple output) technology, cloud RAN/network function virtualization (NFV)/ software defined network (SDN), ultra dense network (UDN), low latency network and RSMA (Reservation multiple access)/FDR (full-duplex relaying). Following Qualcomm patents illustrate some examples of the 5G standard technology R&D of Qualcomm.
Propelling 5G forward: a closer look at 3GPP Release-16Qualcomm Research
This presentation summarizes the 3GPP 5G NR Release 16 projects, including eMBB enhancements, unlicensed, sidelink, IAB, TSN, eURLLC, private networks, C-V2X, and more...
Data analytics to improve home broadband cx & network insightRavi Sharma
Collection of my ideas on #broadband Services #cxtransformation. I feel #dataandanalytics will definitely help in close loop systems, not only in #networks but also the business processes.
#customerexperience is the key for ISPs & CSPs for retention and loyal customer base. The current network are improving the data set availability by using #telemetry #USP and #netconf, but still lot more standardisation is needed in this area, iOAM can be great protocol to implement.
The Linux Foundation is also there in data analysis and AI, really thankful to them for democratisation of technology. #PNDA #ACUMOS #aiforeveryone
#dataanalytics #closedloop #broadbandnetworks #ftth #NLP #predictiveanalytics #prescriptiveanalytics #analytics #analyticsplatform
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
2. Table of Contents
• RAN fundamentals
• Traditional v/s New RAN architectures
• Disaggregation and plane separation
• C-RAN, V-RAN and O-RAN
• Examples/ Use cases
3. RAN Fundamentals
• The radio access network (RAN) is the basic component of cellular
technology
• It has evolved through the generations of mobile communications (1G
through 5G).
• Example of RAN technology is
• GRAN – GSM radio access network
• UTRAN – UMTS radio access network
• E-UTRAN
• 5G RAN
4. Basic Components of mobile network
Core
Transport
Radio access network
(RAN): uses radio
frequencies to provide
wireless connectivity to
the end user devises
UE User Equipment –
Generally a mobile
phone or wireless
CPE/dongle.
Transport networks- It
connects the RAN to
Core part of mobile
network. Also referred
as backhaul.
Mobile Core : It provides
the control and
connectivity within the
network and out side
the network
Radio Access Network
UE
5. Radio Access Network: Basic Components
Base band Radio Antenna
Digital Signal processing Digital information to
radio signal
Electrical Signal to
radio waves
Above is an example of traditional RAN set up
1. Baseband Unit
2. Radio Unit
3. Antenna
6. How the RAN Architecture evolved
2G 3G 4G 5G
BTS BSC
Nod
eB
RNC eNodeB Core
Core Core
RRU BBUCPRIRRU BBUCPRI
RNC
gNodeB Core
RU DU CU
AAU
CPRI/eCPRI F1
• Possible C RAN deployment
• BBU Pool
• Functional Split based RAN
deployment Options
7. How the RAN Architecture evolved
2G 3G 4G 5G
1. BTS is
combination of
Baseband & Radio
2. Centralized
control in form of
BSC
3. CPRI was not
introduced
1. NodeB is
combination of
Baseband & Radio
2. Centralized
control in form of
RNC
3. CPRI introduced,
RRU deployed on
tower and BBU in
shelter/ cabinate
1. eNodeB is
combination of
Baseband & Radio
2. Distributed control on
eNodeB itself
3. CPRI based
centralized BBU
deployed in few
countries
1. gNodeB is combination of
Baseband & Radio
2. Distributed control on
gNodeB itself
3. Functional Splits possible at
MAC, L3 and Phy layer etc.
providing multiple
deployment options
4. DU & CU based on eCPRI
interface and F1 interface
respectively
5. AAU – RU + Antenna – Active
antenna Unit is
8. 5G RAN – CRAN, O RAN , vRAN
CRAN
Centralized RAN has baseband
processing unit in centralized
location connected to multiple
radio equipment via fronthaul.
Conventional CRAN used CPRI as
fronthaul standard, which
requires very high bandwidth in
5G RAN scenario.
vRAN
5G RAN becomes software-
defined and programmable.
This provides RAN architecture
flexibility and platform
simplification.
In O-RAN based implementation,
CU, DU can be installed as
VNF/CNF on x86 based
commodity hardware.
Vendor specific implementation
of vRAN need specialized
hardware for DU. And vendor
specific front haul equipment.
O-RAN
The O-RAN specifications
defined open interfaces and new
nodes to support virtualized RAN
network, white-box hardware and
standardized interfaces
It standardized 7.2 functional split
and front haul based on eCPRI
framework.
It introduces RAN Intelligence
Controller (RIC) as a fundamental
element which provides AI-driven
policies and algorithms to manage
RAN decision making.
9. 5G functional Splits
Data link
layer
Physical
Layer
RF
Low Phy
High Phy
MAC
RLC
PDCP
Network
layer
RRC IP
Transport Blocks
MAC SDU
RLC SDU
Sub carriers
IQ Symbols
PDCP SDU
RU
DU
CU
eCPRI
Ethernet
The Split 2 and Split 7 are mostly recommended by
open communities.
Split 2 is mostly recommended for Small cell
forum for small cell
Split 7 is recommended from O RAN community,
and a ecosystem of equipment provider are
evolving.
The traditional 5G vendors are also supporting
Massive MIMO support the
10. 5G New Concepts
MEC
RAN Slicing
Functional Splits
Programmability
– O RAN RIC
Multi-access Edge Computing (MEC) offers application developers and content providers
cloud-computing capabilities and an IT service environment at the edge of the network.
This environment is characterized by ultra-low latency and high bandwidth as well as
real-time access to radio network information that can be leveraged by applications.
5G RAN slicing secures the efficient allocation of radio resources to support SLA
fulfillment for a wide range of services and enabling new business
Programmability of 5G RAN slicing -Software-Defined RAN (SD-RAN) controller
dynamically reassigns resources to each slice. SD-RAN is developing a near-real-time RIC
(nRT-RIC) and a set of exemplar xApps for controlling the RAN.
The programmability is also because of virtualization of RAN infrastructure.
The functional split determines how many Base Station (BS) functions to leave locally,
close to the user, with the benefit of relaxing fronthaul network bitrate and delay
requirements, and how many functions to centralize with the possibility of achieving
greater processing benefits.