Telco Net Concepts

Well what is the requirement for new 5G technologies in Radio Interface (5G NR)? Can’t we use same technologies used in 4G/LTE for 5G? We have already discussed about main scenarios (eMBB, mMTC, uRLLC) and key performance targets need to be achieved in 5G and how 5G is different from 4G in the previous article . The advanced New Radio technologies are mainly designed to achieve the key performance targets for each of the main scenario. If you don’t have understanding about these concepts, follow this link to understand the concept of 5G main scenarios and key performance targets. Advanced radio technologies are adapted in 5G to achieve key performance targets; higher bandwidths for high peak throughputs and user experience throughputs, advanced multiples access technologies, advanced filters, massive MIMO, advanced channel coding and modulation for higher spectral efficiency, flexible resources like flexible slot, flexible subcarriers spacing (SCS) to make possible use ...

NG-RAN Overall Architecture and Interface Protocol Stack

NG-RAN Overall Architecture and Interface Protocol Stack We have discussed various topics related to 5G so far in my previous articles related to 5G standards Evolution, 5G New Radio (5G NR) Key Technologies, 5G Network Migration Strategy etc. This article is different from previous articles, because I’m trying to explain more technical details based on 3GPP standards; basically for people who are interested to learn deep down the 5G architecture and so on. Introduction The main purpose of this article is to give the basic understanding about the overall architecture of next generation Radio Access Network for 5G technology and interface protocol stacks for main 5G network nodes interacting with the NG-RAN. NG-RAN Overall Architecture What is Next Generation Radio Access Network (NG-RAN)? NG-RAN is a part of the 3GPP 5G system; responsible for providing Radio Access to 5G network. NG-RAN Node can be either a gNB or an NG-eNB according to the 3GPP TS 38.300 spec...

5G Standard Evolution and Key Performance Targets

Why you need 5G as far as 4G/LTE seems capable of fulfilling most of your mobile data demands? Most of us have this question in mind when we think of 5G. And it is true to some extent as several hundreds of Mbps can be achieved via 4G/LTE and it is more than enough for most of the nowadays applications such as basic video streaming. The objectives of 5G technology is far deeper and wider than what we think. 5G focuses on wide variety of applications related to industry automation and IoT applications, high reliable and low latency applications such as smart and automated, self-driving vehicles, real-time responsive applications such as Virtual Reality (VR) and Augmented Reality (AR). 5G RAN Standard Evolution As we can see in the picture, there are two phases of 5G RAN (Radio Access Network) standards evolution. Before discussing about standard evolution, we need to have the idea of main three scenarios 5G mainly focuses on. eMBB (Enhanced Mobile Broadband): e...

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Naleen Hemachandra - Telecommunication Professional

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