Burst in GSM

The Logical  Channel is used in time multiplex in a physical channel, which is categorized according to the types of messages transmitted in the physical channel. Different logical channels are…

Spread Spectrum Concept

Dsss – Direct sequence spread spectrum DSSS – Direct Sequence Spread Spectrum is a spread spectrum technology in which original data is expand using PN code randomly to reduce noise…

How LTE Network Architecture?

The LTE/EPC architecture is driven by the goal to optimize the system for packet data transfer. Remember that There are no circuit switched components in LTE/EPC. There is a new…

Why LTE Require in Telecom ?

Higher data rates: Obviously this is a general requirement requested from any new system. Quality of service, Lower delay: To enable true convergence between real-time and non-real-time services quality of…

BENEFITS OF LTE/EPC

Fully packet-oriented mobile broadband network providing: – Peak data rates of 100 Mbps (DL) and 50 Mbps (UL) – Very low latency – Seamless and lossless handover – Sophisticated QoS…

CDMA Channel Frequencies & Calculation

The 850MHz CDMA band is most popularly used all over the world.This band as mentioned in the previous slide works between       824-849MHz Used for the Reverse link communication      …

Functionally of EPC in LTE

EPC ( Evolved Universal Terrestrial Radio Access Network) Functionally the EPC is equivalent to the packet switched domain of the existing 3GPP networks. EPC consist of:–MME (Mobility Management Entity)–SAE GW…

Evolved HSPA (HSPA+) in LTE

A parallel 3GPP R8 project to LTE and SAE is the Evolved High Speed Packet Access, eHSPA, project (also referred to as HSPA+). The proposed eHSPA features represent a logical…

Why Requirements on the EPC in LTE?

A (rather long) list of general requirements has been set up as guidelines for the standardization work related to the EPC. Some of those are: • 3GPP and non-3GPP access…

Network Architecture in LTE

Figure shows the network architecture of the Evolved Packet Core (EPC). The EPC consists of three main nodes: the Mobility Management Entity (MME), the Serving Gateway (SGW) and the Packet…