EDGE: Enhanced Data Rates for GSM Evolution
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19-10-2010, 09:35 AM

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This paper gives an overview of the EDGE concept. It gives a global overview of second generation systems migration to International Mobile Telecommunications in the year 2000
(IMT-2000). It also gives the rationale behind the development of the EDGE concept, including standardization background and efforts, aspects of introducing EDGE in GSM, and capacity and coverage performance.

In line with the efforts of International Telecommunication Union (ITU) to provide global recommendations for IMT-2000, spectrum identification has been made, identifying parts of the 2 GHz band for IMT-2000 usage. Deploying IMT-2000 capable systems is however not limited to this spectrum band. The EDGE concept, a new TDMA-based radio access technology for both TDMA/136 and Global System for Mobile Communications (GSM) systems, provides third-generation capabilities in the existing 800, 900, 1800, and 1900 MHz) frequency bands.
Enhanced Data rates for Global Evolution (EDGE) are a radio based high-speed mobile data standards. A technology that gives Global System for Mobile Communications (GSM) the capacity to handle services for the third generation of mobile network. EDGE was initially developed for mobile network operators who fail to win Universal Mobile Telephone System (UMTS) spectrum. EDGE gives incumbent GSM operators the opportunity to offer data services at speeds that are near to those available on UMTS networks. EDGE enables services like multimedia emailing, Web infotainment and video conferencing to be easily accessible from wireless terminals.

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18-06-2012, 11:41 AM

Enhanced Data Rates for GSM Evolution EDGE

.pdf   Enhanced Data Rates.pdf (Size: 147.64 KB / Downloads: 32)

The business of wireless data
is expected to grow in the region
of 100–200 % per annum
and the mobile communications
industry agrees that wireless
data services will form the
foundation for future business.
The enormous success of short
messaging in many countries
proves that people accept the
benefits of non-voice services.


The GSM standard is being
developed to support mobile
services with radio interface data
rates even over 400 kbit/s.
This work is being performed
under the ETSI work item
EDGE (Enhanced Data Rates
for GSM Evolution).
The major change in the GSM
standard to support higher data
rates is the new modulation
system, known as 8PSK (Phase
Shift Keying). This will not
replace but rather co-exist with
the existing GMSK (Gaussian
Minimum Shift Keying)
modulation. With 8PSK, it is
possible to provide higher data
rates with a somewhat reduced
coverage, whereas GMSK
will be used as a robust mode
for a wide area coverage.

EDGE brings more
speed and capacity
when needed

In mature GSM markets, cellular
data penetration is forecast to
increase exponentially during
the early 2000’s. New wireless
data applications and innovative
terminal types will generate
completely new markets:
aggressive GSM operators can
expect to obtain up to 30 % of
their airtime and revenue from
wireless data by year 2000.

EDGE boosts
data rates

The Phase 1 EDGE standard,
scheduled to be complete in the
third quarter of 1999, will
contain both EGPRS and ECSD
services. EGPRS will be based on
the footprint of GPRS, whereas
ECSD will enhance the data rates
of HSCSD. It is expected that
packet data will dominate circuit
switched data in future GSM
data networks, calling for EGPRS
solutions with high flexibility
and spectral efficiency. Also,
the high data rate real time
services provided with ECSD are
seen as important for
applications such as video
retrieval and video telephony.

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