Core, Air and Radio (CAR) interfaces in 4G.
Introduction to System
Architecture Evolution (SAE).Core Network Interface :-
4G IP core network is purely packet based and doesn’t involve any switching between packet-
4G IP core network is purely packet based and doesn’t involve any switching between packet-
Air interface :-
The 4G technologies are developed entirely on OFDM standard. The higher data rates are achieved on air interface using multiple antennas. The other features of 4G air interface is the wide range of frequency
scalability. The range is between 1.25 Mhz channel to 20 MHz. The highest throughput of 100 Mbps Downlink and 50 Mbps Uplink is possible only in 20 MHz band with multiple antenna support.Next Radio Network
Radio Network :-
An all IP (or flat) network architecture provides reduced data latency, maximum, simplification of networks, improved scalability and leverage of existing IETF standards.
Data latency is the transmission delay between the transmitter sending data and receiver getting data. In LTE it is reduced by managing most dynamic decisions locally at the mobile.
Simplification of networks is done by
An all IP (or flat) network architecture provides reduced data latency, maximum
Data latency is the transmission delay between the transmitter sending data and receiver getting data. In LTE it is reduced by managing most dynamic decisions locally at the mobile.
Simplification of networks is done by
decoupling of users and control planes.
System Architecture Evolution (SAE) Introduction :-
System Architecture Evolution or SAE is a technique for the core network which reduces the number of network nodes involved in data processing and transport. A SAE network has two types of network elements to support user and control planes.
1. Enhanced Node B or eNodeB -
2. Access Gate Way (AGW) -