Signalling in EPC/LTE: CSFB and SMSoSGs

“Signalling in EPC/LTE” course focuses on signalling between EPS/LTE nodes within GPRS Tunnelling Protocol (GTP) based Evolved Packet Core (EPC)* network. During the course all protocols and signalling procedures on all interfaces (i.e.

VoLTE Basics: SMS

Unlike previous 3GPP wireless technologies, LTE has no Circuit Switched (CS) bearer to support voice, so carrying voice over LTE requires a migration to a Voice over IP (VoIP) solution.

LTE/EPS Technology: Core Network

The 3GPP evolution for the 3G mobile system created the new base station system, called Evolved UMTS Terrestrial Radio Access Network (E-UTRAN) and a new core network, called Evolved Packet Core (EPC) as a result of two standardisation projects: Long Term Evolution (LTE) and System Architecture Evolution (SAE).

Signalling in E-UTRAN: X2 Interface

“Signalling in E-UTRAN/LTE” course focuses on signalling between EPS/LTE nodes within E-UTRAN. During the course all protocols and signalling procedures on all interfaces (i.e. Uu, X2 and S1) within E-UTRAN are presented in details. The course also describes overview of EPS architecture and system wide signalling procedures, including EPC - E-UTRAN interworking.

CSFB and SMSoSGs

The CS FallBack (CSFB)  in EPS enables the provisioning of voice and other CS-domain services (e.g. CS UDI video, LCS, USSD) by reuse of CS infrastructure when the UE is served by E-UTRAN. A CSFB enabled terminal, connected to E-UTRAN may use GERAN or UTRAN to connect to the CS-domain.

Validating voice over LTE end-to-end

Ericsson - Unlike previous 3GPP wireless technologies, LTE has no circuit-switched bearer to support voice, so carrying voice over LTE requires a migration to a voice over IP (VoIP) solution – commonly under the umbrella of IMS. Until this migration occurs, LTE-capable handsets need to revert to 2G or 3G for voice calls: an approach that is not ideal in the long term.

LTE-Advanced Tutorial

The next important milestone is the standardization of LTE-Advanced (LTE Rel.10 and beyond).

Next generation LTE, LTE-Advanced or LTE Rel-10 is the next step in radio access technology

Whatever the name – next generation LTE, LTE-Advanced or LTE Rel-10 – the next step in LTE evolution allows operators to introduce new technologies without putting exis

MIMO Technologies in 3GPP LTE and LTE-Advanced

Multiple input multiple output (MIMO) technologies introduced in LTE such as spatial multiplexing, transmit diversity, and beamforming are key components for providing higher peak rate at a better

LTE eNB & Evaluation Methodology

A comprehensive online LTE tutorial from Artiza Networks. It includes LTE overview, LTE eNB details & LTE eNB Evaluation Methodology. Contents include followings 

Guidelines for MIMO Test Setups

Rohde & Schwarz - Multiple antenna systems, known as MIMO systems, form an essential part of today’s wireless communications standards.

Cell search and cell selection in UMTS LTE

Rohde & Schwarz - This application note explains the fundamentals of the cell search and cell selection and reselection procedures required for both modes of UMTS Long Term Evolution: FDD and T

An overview of the LTE physical layer--Part II

Telesystem Innovations - This article presents an overview of the LTE physical layer with a focus on essential aspects of the physical layer for FDD mode, which is the dominant mode of operation.

Voice over LTE

Voice Over LTE by Dan Warren, Director of Technology, GSMA