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1
EDGE TECHNOLOGY
INTRODUCTION
2
 EDGE stands for Enhanced Data rates for GSM
Evolution.
 It is most talked technology in mobile
communication technologies in recent times and it
turn out to be the evolution of most widely used
GSM technology.
 It facilitates better data transmission rates with
improved spectrum efficiency and the best part is
its capability of supporting new applications and
improved mobile communication capabilities.
INTRODUCTION(contd…)
3
1. EDGE as Extended GPRS:
 It is a high-speed mobile data standard, intended to
enable second-generation global system for mobile
communication (GSM) and time division multiple
access (TDMA) networks to transmit data at up to 384
kilobits per second (Kbps).
 Also called as GSM384.
2. EDGE: Enhanced Technology:
• The deployment of EDGE technology is much easier
for mobile companies. It does not require any up
gradation in hardware, software or any changes in
GSM network.
History of mobile phones
EDGE4
1) 1st generation mobile communication: In 1982
the FCC approved AT&T's 1971 proposal for
Advanced Mobile Phone System and allocated
frequencies in the 824–894 MHz band
2) 2nd generation mobile communication: 2G
emerged in 1990s. These used digital signals.
New services like SMS became prevalent.
3) 2.5th and 3rd generation mobile
communication: launched in USA in 2002. In
mid 2000s enhanced 3G was launched which
implemented HSDPA. And during
development of 3G, 2.5G & GPRS system
were developed.
History of mobile phones(contd…)
EDGE5
GSM and GPRS
EDGE6
1. Difference between GSM and GPRS:
 GPRS is technology in mobile telecom that is to
be applied to the current GSM network.
 Both uses TDMA, but GSM uses one out of
seven slots whereas GPRS connection uses as
many as 4+1 time slots.
 GPRS service providers charge per sent byte,
not per second. So we don’t have to pay for idle
time.
GSM and GPRS (contd…)
EDGE7
GSM:
 GSM stands for Global System for Mobile
Communications.
 It handles both voice and data traffic requirements of
the mobile communication by providing two modes of
operation:
a)Circuit switched (high-speed circuit switched data)
b) Packet switched(GPRS)
 The standard data rate of a GSM channel is 22.8
kbps.
 . One of the key features of GSM is the Subscriber
Identity Module, commonly known as a SIM card.
GSM and GPRS (contd…)
EDGE8
3. GPRS:
 The general packet radio system (GPRS)
provides packet radio access for mobile Global
System for Mobile Communications (GSM) and
time-division multiple access (TDMA) users.
 GPRS is the first step toward an end-to-end
wireless infrastructure .
 GPRS usage charging is based on volume of
data, either as part of a bundle or on a pay as you
use basis.
EDGE technology
EDGE9
EDGE is most talked technology in mobile
communication technologies in recent times and it
turn out to be the evolution of most widely used GSM
technology. It has following features:
1. 8 PSK modulation:
 EDGE provides speed enhancements by changing
the type of modulation used and making a better
use of the carrier currently used.
 8 PSK modulation automatically adapts to local
radio conditions, offering the fastest transfer rates
near to the base stations.
 It offers up to 48Kbps per channel, compared to
14Kbps per channel with GPRS and 9.6Kbps per
channel for GSM.
EDGE technology(contd…)
EDGE10
 By also allowing the
simultaneous use of multiple
channels, the technology
allows rates of up to 384Kbps,
using all eight GSM channels.
 The additional implementation
of EDGE systems requires
just one EDGE transceiver
unit to be added to each cell,
with the base stations
receiving remote software
upgrades.
 EDGE can co-exist with the
existing GSM traffic, switching
to EDGE mode automatically.
EDGE technology(contd…)
EDGE11
2. MODULATION AND CODING SCHEME:
 GPRS acquires four coding schemes while EDGE posses
nine Modulation and Coding Schemes.
 Each one is designated a number in the region 1 to 9.
 These allow different degrees of error protection (and
coding rate) and this results in a change in the net data
throughput.
 The different coding schemes are grouped into three
classes or which are referred, as classes A, consisting of
MCS-3, MCS-6, MCS-8, and MCS-9, Family B consists of
MCS-2, MCS-5, and MCS-7, Finally family C consists of
MCS-1, and MCS- 4.
 The advantage of grouping the families together in this way
is that if a block transmitted in one of the coding schemes
is not acknowledged, then it can be sent as two blocks
EDGE technology(contd…)
EDGE12
EDGE technology(contd…)
EDGE13
3. CHANNEL CODING AND FRAME STRUCTURE:
 EDGE even being a highly sophisticated radio
technology, uses the same radio channels and
timeslots as any GSM and GPRS system, so it does
not require additional spectral resources except to
accommodate loading.
 By deploying EDGE, operators can use their existing
spectrum more efficiently. Most new GSM networks
deployed today include EDGE.
 For many GSM/GPRS networks in areas such as the
Americas, EDGE was mostly software upgrade to the
Base Transceiving Station (BTS)
EDGE technology(contd…)
EDGE14
EDGE as a complementary 3G technology:
 EDGE provides a high-capability data service in
advance of UMTS.
 EDGE provides average data capabilities for the
“sweet spot” of approximately 100 kbps.
 It has proven itself in the field as a cost-effective
solution and is now a mature technology.
 EDGE is very efficient spectrally, allowing operators to
support more voice and data users with existing
spectrum.
 Operators can maintain their EDGE networks as a
complementary service offering, even as they deploy
UMTS.
EDGE ARCHITECTURE
KASHISH SEHGAL15
Improving the GSM EDGE
technology
EDGE16
 By replacing the 8PSK modulation with a
combined2FSK/8PSK modulation scheme, the
improved EDGE system can transmit 4
bits/symbol compared to 3 bits/symbol of 8PSK in
the same bandwidth as the original EDGE system
with similar performance.
 For obtaining a minimum-phase overall impulse
response we use a MMSE-DFE feed forward
filter. Hence no filtering is required.
EDGE DEPLOYMENT AND
MIGRATION
EDGE17
 GSM operators first enhanced their networks to
support data capability through the addition of GPRS
infrastructure.
 Lately, operators have been upgrading their networks
to EDGE, with extremely good results.
 Operators are now deploying UMTS worldwide.
 Most UMTS cell sites can be collocated in GSM cell
sites enabled by multi-radio cabinets that can
accommodate GSM/EDGE as well as UMTS
equipment.
 Much of the GSM/GPRS core network can be used.
EDGE DEPLOYMENT AND
MIGRATION(contd...)
KASHISH SEHGAL18
EDGE EVOLUTION TECHNOLOGY
EDGE19
 There is improved EDGE technology also available and
that is EDGE Evolution.
 By lowering transmission time interval by 50% that is from
20 ms to 10 ms it manages to reduce latency rates.
 With the help of dual carriers and reduced latency rate
down to 800 ms, higher bit rates are achieved which is up
to 1Mbits.
 Dual antennas are used to improve signal quality and bit
rate spectrum efficiency.
 It will take some time, since software update is required.
 It does not require any hardware updates.
 It can provide mobile internet users a speed of about
500Kbits.
ADVANTAGES OF EDGE:
EDGE20
 It has adaptability to the existing system like
GPRS, HSCSD (high speed circuit switched data)
and specifications; it does not require new systems
to be developed for deploying it.
 EDGE/EGPRS can be operated on existing
frequency spectrum that is 800MHz, 1800 MHz
and 1900 MHz.
 It is cost effective since it requires small units of
improvement and enhancements on existing
network.
 It provides thrice as better speed as GPRS does.
ADVANTAGES OF EDGE(contd…)
EDGE21
 It Improve performance of existing applications
and room for new applications like video calls on
mobile etc.
 Faster data transfer rates up to384 kbps
 EDGE TECHNOLOGY =TODAY TECHNOLOGY,
Higher data throughput .
 Supports various download files types.
 Rapid internet and WAP connectivity.
 Service available for EDGE phone without tariff.
DISADVANTAGES
EDGE22
 Extra mobile terminal hardware and software is
required.
 EDGE requires base station modifications.
 It is frequently referred as 2.75G.
CONCLUSION
EDGE23
 EDGE can be viewed as an evolution of the GSM
network carrying both circuit switched and packet
data.
 EDGE forms basis for the 3G UMTS network
(Universal Mobile Telecommunications System)
 So network operators could evolve their networks
GSM, to GPRS then EDGE and finally to the full
3G networks without having to replace and install
more new equipment.
REFERENCES
EDGE24
 http://en.wikipedia.org/wiki/Enhanced_Data_Rate
s_for_GSM_Evolution.
 http://www.wifinotes.com/mobile-communication-
technologies/edge-technology.html.
 http://www.gsmworld.com/technology/index.shtm.
 http://www.radio-
electronics.com/info/cellulartelecomms/gsm-
edge/network-architecture.php.
 http://www.eogogics.com/courses/EDGE.
EDGE25
THANK YOU
EDGE26
QUERIES…..???

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Edge technology

  • 2. INTRODUCTION 2  EDGE stands for Enhanced Data rates for GSM Evolution.  It is most talked technology in mobile communication technologies in recent times and it turn out to be the evolution of most widely used GSM technology.  It facilitates better data transmission rates with improved spectrum efficiency and the best part is its capability of supporting new applications and improved mobile communication capabilities.
  • 3. INTRODUCTION(contd…) 3 1. EDGE as Extended GPRS:  It is a high-speed mobile data standard, intended to enable second-generation global system for mobile communication (GSM) and time division multiple access (TDMA) networks to transmit data at up to 384 kilobits per second (Kbps).  Also called as GSM384. 2. EDGE: Enhanced Technology: • The deployment of EDGE technology is much easier for mobile companies. It does not require any up gradation in hardware, software or any changes in GSM network.
  • 4. History of mobile phones EDGE4 1) 1st generation mobile communication: In 1982 the FCC approved AT&T's 1971 proposal for Advanced Mobile Phone System and allocated frequencies in the 824–894 MHz band 2) 2nd generation mobile communication: 2G emerged in 1990s. These used digital signals. New services like SMS became prevalent. 3) 2.5th and 3rd generation mobile communication: launched in USA in 2002. In mid 2000s enhanced 3G was launched which implemented HSDPA. And during development of 3G, 2.5G & GPRS system were developed.
  • 5. History of mobile phones(contd…) EDGE5
  • 6. GSM and GPRS EDGE6 1. Difference between GSM and GPRS:  GPRS is technology in mobile telecom that is to be applied to the current GSM network.  Both uses TDMA, but GSM uses one out of seven slots whereas GPRS connection uses as many as 4+1 time slots.  GPRS service providers charge per sent byte, not per second. So we don’t have to pay for idle time.
  • 7. GSM and GPRS (contd…) EDGE7 GSM:  GSM stands for Global System for Mobile Communications.  It handles both voice and data traffic requirements of the mobile communication by providing two modes of operation: a)Circuit switched (high-speed circuit switched data) b) Packet switched(GPRS)  The standard data rate of a GSM channel is 22.8 kbps.  . One of the key features of GSM is the Subscriber Identity Module, commonly known as a SIM card.
  • 8. GSM and GPRS (contd…) EDGE8 3. GPRS:  The general packet radio system (GPRS) provides packet radio access for mobile Global System for Mobile Communications (GSM) and time-division multiple access (TDMA) users.  GPRS is the first step toward an end-to-end wireless infrastructure .  GPRS usage charging is based on volume of data, either as part of a bundle or on a pay as you use basis.
  • 9. EDGE technology EDGE9 EDGE is most talked technology in mobile communication technologies in recent times and it turn out to be the evolution of most widely used GSM technology. It has following features: 1. 8 PSK modulation:  EDGE provides speed enhancements by changing the type of modulation used and making a better use of the carrier currently used.  8 PSK modulation automatically adapts to local radio conditions, offering the fastest transfer rates near to the base stations.  It offers up to 48Kbps per channel, compared to 14Kbps per channel with GPRS and 9.6Kbps per channel for GSM.
  • 10. EDGE technology(contd…) EDGE10  By also allowing the simultaneous use of multiple channels, the technology allows rates of up to 384Kbps, using all eight GSM channels.  The additional implementation of EDGE systems requires just one EDGE transceiver unit to be added to each cell, with the base stations receiving remote software upgrades.  EDGE can co-exist with the existing GSM traffic, switching to EDGE mode automatically.
  • 11. EDGE technology(contd…) EDGE11 2. MODULATION AND CODING SCHEME:  GPRS acquires four coding schemes while EDGE posses nine Modulation and Coding Schemes.  Each one is designated a number in the region 1 to 9.  These allow different degrees of error protection (and coding rate) and this results in a change in the net data throughput.  The different coding schemes are grouped into three classes or which are referred, as classes A, consisting of MCS-3, MCS-6, MCS-8, and MCS-9, Family B consists of MCS-2, MCS-5, and MCS-7, Finally family C consists of MCS-1, and MCS- 4.  The advantage of grouping the families together in this way is that if a block transmitted in one of the coding schemes is not acknowledged, then it can be sent as two blocks
  • 13. EDGE technology(contd…) EDGE13 3. CHANNEL CODING AND FRAME STRUCTURE:  EDGE even being a highly sophisticated radio technology, uses the same radio channels and timeslots as any GSM and GPRS system, so it does not require additional spectral resources except to accommodate loading.  By deploying EDGE, operators can use their existing spectrum more efficiently. Most new GSM networks deployed today include EDGE.  For many GSM/GPRS networks in areas such as the Americas, EDGE was mostly software upgrade to the Base Transceiving Station (BTS)
  • 14. EDGE technology(contd…) EDGE14 EDGE as a complementary 3G technology:  EDGE provides a high-capability data service in advance of UMTS.  EDGE provides average data capabilities for the “sweet spot” of approximately 100 kbps.  It has proven itself in the field as a cost-effective solution and is now a mature technology.  EDGE is very efficient spectrally, allowing operators to support more voice and data users with existing spectrum.  Operators can maintain their EDGE networks as a complementary service offering, even as they deploy UMTS.
  • 16. Improving the GSM EDGE technology EDGE16  By replacing the 8PSK modulation with a combined2FSK/8PSK modulation scheme, the improved EDGE system can transmit 4 bits/symbol compared to 3 bits/symbol of 8PSK in the same bandwidth as the original EDGE system with similar performance.  For obtaining a minimum-phase overall impulse response we use a MMSE-DFE feed forward filter. Hence no filtering is required.
  • 17. EDGE DEPLOYMENT AND MIGRATION EDGE17  GSM operators first enhanced their networks to support data capability through the addition of GPRS infrastructure.  Lately, operators have been upgrading their networks to EDGE, with extremely good results.  Operators are now deploying UMTS worldwide.  Most UMTS cell sites can be collocated in GSM cell sites enabled by multi-radio cabinets that can accommodate GSM/EDGE as well as UMTS equipment.  Much of the GSM/GPRS core network can be used.
  • 19. EDGE EVOLUTION TECHNOLOGY EDGE19  There is improved EDGE technology also available and that is EDGE Evolution.  By lowering transmission time interval by 50% that is from 20 ms to 10 ms it manages to reduce latency rates.  With the help of dual carriers and reduced latency rate down to 800 ms, higher bit rates are achieved which is up to 1Mbits.  Dual antennas are used to improve signal quality and bit rate spectrum efficiency.  It will take some time, since software update is required.  It does not require any hardware updates.  It can provide mobile internet users a speed of about 500Kbits.
  • 20. ADVANTAGES OF EDGE: EDGE20  It has adaptability to the existing system like GPRS, HSCSD (high speed circuit switched data) and specifications; it does not require new systems to be developed for deploying it.  EDGE/EGPRS can be operated on existing frequency spectrum that is 800MHz, 1800 MHz and 1900 MHz.  It is cost effective since it requires small units of improvement and enhancements on existing network.  It provides thrice as better speed as GPRS does.
  • 21. ADVANTAGES OF EDGE(contd…) EDGE21  It Improve performance of existing applications and room for new applications like video calls on mobile etc.  Faster data transfer rates up to384 kbps  EDGE TECHNOLOGY =TODAY TECHNOLOGY, Higher data throughput .  Supports various download files types.  Rapid internet and WAP connectivity.  Service available for EDGE phone without tariff.
  • 22. DISADVANTAGES EDGE22  Extra mobile terminal hardware and software is required.  EDGE requires base station modifications.  It is frequently referred as 2.75G.
  • 23. CONCLUSION EDGE23  EDGE can be viewed as an evolution of the GSM network carrying both circuit switched and packet data.  EDGE forms basis for the 3G UMTS network (Universal Mobile Telecommunications System)  So network operators could evolve their networks GSM, to GPRS then EDGE and finally to the full 3G networks without having to replace and install more new equipment.
  • 24. REFERENCES EDGE24  http://en.wikipedia.org/wiki/Enhanced_Data_Rate s_for_GSM_Evolution.  http://www.wifinotes.com/mobile-communication- technologies/edge-technology.html.  http://www.gsmworld.com/technology/index.shtm.  http://www.radio- electronics.com/info/cellulartelecomms/gsm- edge/network-architecture.php.  http://www.eogogics.com/courses/EDGE.