5G network architecture | 5G protocol stack
This page of 5G tutorial covers 5G network architecture and 5G protocol stack. The 5G network architecture consists of all RANs, aggregator, IP network,nanocore etc. The 5G protocol stack consists of Open Wireless Architecture, lower and upper network layer, open transport protocol and application layer. These have been explained below with the figures.
5G network architecture
Figure-1 depicts 5G network architecture. As shown 5G network uses flat IP concept so that different RANs (Radio Access Networks) can use the same single Nanocore for communication. RANs supported by 5G architecture are GSM, GPRS/EDGE, UMTS, LTE, LTE-advanced, WiMAX, WiFi, CDMA2000, EV-DO, CDMA One, IS-95 etc.
Flat IP architecture identify devices using symbolic names unlike hierarchical architecture where in normal IP addresses are used. This architecture reduces number of network elements in data path and hence reduces cost to greater extent. It also minimizes latency.
5G aggregator aggregates all the RAN traffics and route it to gateway. 5G aggregator is located at BSC/RNC place. 5G mobile terminal houses different radio interfaces for each RAT in order to provide support for all the spectrum access and wireless technologies.
Another component in the 5G network architecture is 5G nanocore. It consists of nanotechnology, cloud computing, All IP architecture.
Cloud computing utilizes internet as well as central remote servers to maintain data and applications
of the users. It allows consumers to use applications without any installation and access
their files from any computer across the globe with the use of internet.
Refer Cloud storage tutorial➤ and cloud computing tutorial➤ for more information.
Global content service providers support following applications:
• Search engine• education• public portal• private portal• government• medical• transportation• banking etc.
5G Protocol Stack
The figure-2 below depicts 5G protocol stack mentioning 5G protocol layers mapped with OSI stack. As whown 5G protocol stack consists of OWA layer, network layer, Open transport layer and application layer.
OWA Layer: OWA layer is the short form of Open Wireless Architecture layer.
It functions as physical layer and data link layer of OSI stack.
Network Layer: It is used to route data from source IP device to the destination IP device/system. It is divided into lower and upper network layers.
Open Transport Layer: It combines functionality of both transport layer and session layer.
Application Layer: It marks the data as per proper format required. It also does encryption and decryption of the data. It selects the best wireless connection for given service.