What is the architecture of LTE?

What is the architecture of LTE?

A standard LTE system architecture consists of an Evolved UMTS Terrestrial Radio Access Network, more commonly known as E-UTRAN, and the System Architecture Evolution, also known as SAE. SAE’s main component is the Evolved Packet Core, also known as an EPC. The E-UTRAN is comprised of: User Equipment (UEs)

What are the components of LTE architecture?

The high-level network architecture of LTE is comprised of following three main components:

• The User Equipment (UE).
• The Evolved UMTS Terrestrial Radio Access Network (E-UTRAN).
• The Evolved Packet Core (EPC).

How do you explain 4G architecture?

4 G Architecture 4 G network is an integration of all heterogeneous wireless access networks such as Ad-hoc, cellular, hotspot and satellite radio component. Technologies used in 4 G are smart antennas for multiple input and multiple output (MIMO), IPv6, VoIP, OFDM and Software defined radio (SDR) System.

Which is basic entity in LTE?

2 Mobility Management Entity. From a Core Network perspective, the MME is the main node for control of the LTE access network. It selects the Serving GW for a UE during the initial attachment and also during handover, if necessary, between LTE networks.

What is an SIP architecture?

SIP is a signaling protocol that handles the setup, modification, and tear-down of multimedia sessions. SIP, in combination with other protocols, is used to describe the session characteristics to potential session participants.

How many layers are there in SIP protocol?

According to RFC3261 5 Structure of the Protocol, SIP protocol layers can be defined as follows; Syntax and Encoding, Transport layer, Transaction layer, Transaction user.

What are IMS components?

IMS consists of three components:

• The Database Manager (IMS DB)
• The Transaction Manager (IMS TM)
• A set of system services that provide common services to IMS DB and IMS TM.

What are the key elements in IMS?

Below we have stated the roles of each element in the IMS core.

• 1- P-CSCF – Proxy Call/Session Control Function.
• 2- I-CSCF – Interrogating-Call/ Session Control Function.
• 3- S-CSCF – the Serving Call/Session Control Function.
• 4 – Emergency Services Implementation (incl. E-CSCF)

Is eNodeB a base station?

eNodeB is a 3GPP-compliant implementation of 4G LTE base station. It consists of independent Network Functions, which implement 3GPP-compliant LTE RAN protocols namely: PHY, MAC, RLC, PDCP, RRC, S1AP see Figure below.