ProDeveloperTutorial.com

Tutorials and Programming Solutions
Menu
  • Shell Scripting
  • System Design
  • Linux System Programming
  • 4g LTE
  • Coding questions
  • C
  • C++
  • DSA
  • GIT
  • 450 DSA Cracker
  • 5G NR
  • O-RAN

5G RAN Fronthaul, Midhaul and Backhaul, RRU, BBU, CU, DU

prodevelopertutorial September 10, 2022

Fronthaul, Midhaul and Backhaul are used to connect RU, DU and CU and the core network together.

They tells us about the transport network architecture.

5G RAN Fronthaul, Midhaul and Backhaul, RRU, BBU, CU, DU

What is Fronthaul ?

It is the link between RRU and BBU. or RRU and DU.

It has a latency requirement for 100 to 250 µs one way.

They are implemented by vendor and the interfaces are proprietary.

What is Midhaul ?

It is the link between DU and CU.

They are connected through F1 interface.

What is Backhaul ?

It is the link between CU and Core Network.

They are connected through NG interface.

What is DU ?

DU stands for Distributed Unit.

It handles RLC, MAC and parts of PHY layer. It is placed close to RRU.

What is CU ?

CU stands for Centralized Unit.

It handles RRC and PDCP layers.

One CU is connected to multiple DU.

Relation between RRU DU CU:

5G RAN Fronthaul, Midhaul and Backhaul, RRU, BBU, CU, DU

What is AAU ?

AAU stands for Active Antenna Unit.

It is nothing but the antenna.

What is BBU ?

BBU stands for Base Band Unit.

It is used to manage the whole base station that include operating. maintenance and signalling processing.

Provides the interface to RRU.

 

What is RRU ?

RRU stands for Remote Radio Unit.

It sits in between antenna in one end and BBU on the other.

It is connected to BBU through CPRI and converts RF signal into data signal and vice versa.

It performs preprocessing, amplification, filtering, carrier generation.

What is an Antennas ?

There are 2 types of Antennas. one for Outdoor Coverage and another for Indoor coverage.

Outdoor Coverage:

Here the shape of the antenna decides signal coverage.

Indoor Coverage:

Ceiling omnidirectional antenna

Ceiling Directional antenna

 

Share
Email
Tweet
Linkedin
Reddit
Stumble
Pinterest
Prev Article
Next Article

About The Author

prodevelopertutorial

Follow this blog to learn more about C, C++, Linux, Competitive Programming concepts, Data Structures.

Leave a Reply Cancel Reply

You must be logged in to post a comment.

ProDeveloperTutorial.com

Tutorials and Programming Solutions
Copyright © 2023 ProDeveloperTutorial.com
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Do not sell my personal information.
Cookie SettingsAccept
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT