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Telecommunication. GSM.

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by

Iryna Mykytyn

on 15 September 2014

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Transcript of Telecommunication. GSM.

Objective:
THE EVOLUTION OF GSM TO 4G
GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM)
Telecom Generations
EVOLUTION OF GSM TO 2.5G AND 2.75G
What is telecommunication?

Generations of telecommunication.

GSM Overview. Evolution GSM-based system to 4G.

Next Generation Mobile Network.
GSM STRUCTURE
What is telecommunication?
Telephony
Radio
Telegraphy
Internet
Television
From Latin:
communicatio
- speech, connectivity, communication.
From Greek:
tele
- far, distant

Telecommunication - transmission of information over significant distance.
MOBILE TELEPHONY. WIRELESS NETWORK.
1895 year - 'wireless transmission era'
began - Guglielmo Marconi transmitted the letter in Morse's alphabet over 2,5 km using radio waves.
GSM
- standard developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks used by mobile phones. It is the de facto global standard for mobile communications with
over 90% market share
, and is available in over
219 countries
and territories.
First mobile networks (
0G
):
ARP
( "car radio phone" ) and
MTD
( Mobile telephony system D ).
1G features
:
become available in
1981
analogue transmission
very limited capacity (FDMA)
easy to overheard
susceptible to interferences
handover in standard
speech call dedicated network.
2G features
become available in
1991:
digital transmission
increased capacity
( FDMA + TDMA, CDMA)
protected against overhearing
interference and noise resistance
speech and data transmission possible.
GSM EVOLUTION
BTS Base Transceiver Station
BSC Base Station Controller
MSC Mobile services Switching Center
VLR Visitor Location Register
HLR Home Location Register
AUC AUthentication Center
EIR Equipment Identity Register
SGSN Serving GPRS Support Node
GGSN Gateway GPRS Support Node
MOBILE GENERATIONS
ZZ
LTE
- standard for wireless communication of high-speed data for mobile phones and data terminals. It is
based on the GSM/EDGE and UMTS/HSPA
network technologies, increasing the capacity and speed using a different radio interface together with core network improvements
2.5G: the GPRS core network
- the central part of the general packet radio service (GPRS) which allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet.
GPRS core structure
EVOLUTION OF GSM TO 3G. UMTS.
The Universal Mobile Telecommunications System (UMTS)
is a third generation mobile cellular system for networks based on the GSM standard.
New network elements that function as specified by 3GPP:

Node B (base transceiver station)
Radio Network Controller (RNC)
Media Gateway (MGW)
Speed: 9,6 кбит/сек
Speed: 56-114 kbit/s
2.75G: EDGE
- digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM. EDGE is considered a pre-3G radio technology and is part of ITU's 3G definition.

Speed: 236-473 kbit/s
Speed: 42 Mbit/s

3GPP Long Term Evolution
(LTE) project plans to move UMTS to 4G speeds of 100 Mbit/s down and 50 Mbit/s up, using a next generation air interface technology based upon orthogonal frequency-division multiplexing (OFDM).
Media gateway
A media gateway is a translation device or service that converts digital media streams between disparate telecommunications networks such as PSTN, SS7, Next Generation Networks (2G, 2.5G and 3G radio access networks).
Media gateways enable multimedia communications across Next Generation Networks over multiple transport protocols such as Asynchronous Transfer Mode (ATM) and Internet Protocol (IP).
LTE Advanced
is a mobile communication standard and a major enhancement of the Long Term Evolution (LTE) standard. It was formally submitted as a candidate 4G system to ITU-T in late 2009 as meeting the requirements of the IMT-Advanced standard, and was standardized by the 3rd Generation Partnership Project (3GPP) in March 2011 as 3GPP Release 10.
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