EDGE TECHNOLOGY AN EVOLUTION IN MOBILE TECHNOLOGY PRESENTED BY KIRAN KUMAR

AIM OF THE PRESENTATION To familiarize the audience what EDGE TECHNOLOGY is all about. To explain it’s advantage over other technology. FUTURE SCOPE of the existing technology.

EDGE TECHNOLOGY: What is Edge? Enhance data rate for GSM evolution (EDGE) is a digital mobile phone technology. It is generally classified as a 2.75G network technology.

How is EDGE related to mobile phones ? EDGE has been introduced into GSM network around the since world since 2003 initially in North American.

HISTORY EDGE was adopted by UWCC in January 1998 as the outdoor component of 136HS to provide 384 kb/s data services. This was in support of the technology evolution for GSM and TDMA/ 136 systems. EDGE is a technology that gives GSM Networks the capacity to handle services for 3G EDGE was developed to enable the transmission of large amounts of data at peak rates of upto 472 kbps.

Users should experience average speeds of 80 kbps to 130 kbps Users should experience average speeds of 80 kbps to 130 kbps. EDGE deployment will begin in 2003 with full deployment finishing in 2004. EDGE devices are backwards compatible with GPRS and will be able to operate on GPRS networks where EDGE has not yet been deployed.

INTRODUCTION Edge (Enhance data rate for GSM evolution) is a radio signaling technology for 3G mobile networks. EDGE use for mobile service such as downloading of video and music clips full multimedia messaging high- speed colors internet access and e-mail on the move.

It can be used for any packet switching application such as an internet connection. EDGE circuit switching is a possible for future development. It increase data rates up to 384 kbps. Introduces a new modulation technique (8PSK) and channel coding.

HOWDOES EDGE WORK ? Edge work by improving the signaling interface used to communicate over the radio wave. Typically edge enhance thee time the performance of GPRS achieving an data rate 80 to160 kbps per user with mobile terminals.

ARCHITECTURE EDGE is an improvement to the GPRS air interface that enables higher user bit rates and greater system capacity by enhancing the physical layer. The higher bit rates place extra demands on parts of the GPRS network The core GPRS nodes, SGSN and GGSN, are more or less independent of user bit rates and no new hardware is required.

In the radio network, base station transceivers need to be EDGE-capable, and base station and BSC/PCU software needs to be updated. EDGE improves the situation by employing a new modulation method and link quality control. 8-PSK is a high-level linear modulation method that carries three times more information through an extended signal constellation.

Impact ofEDGE on existingGSM/GPRS networks Hardware upgrade to the BSS (new transceiver in each cell) Software upgrade to the BS and BSC No change in the core networks New terminals -Terminal which provides 8PSK in the uplink and the downlink -Terminal which provides GMSK in the uplink and 8PSK in the downlink

TRANSMISSION TECHNIQUES In addition to Gaussian minimum- shift keying (GMSK),EDGE uses higher-order PSK/8 phase shift keying (8PSK). EDGE produces a 3-bit word for every change in carrier phase.

Coding schemes (modulation coding schemes

Measurement accuracy It is done by measuring bit error rate ,carrier strength etc. It has done by quickly to select the right coding scheme.

DATA TRANSMISSON IN EDGE The current GSM standard provides data services with user bit rates up to 14.4 kb/s . Higher bit rates can be achieved with multislot operation, but since both high-speed circuit-switched data (HSCSD) and General Packet Radio Service (GPRS) . EDGE provides high data services with user bit rates up to 59.2 kb/s.

EDGE modulation technique

Edge link controlling function It uses a combination of 2 functionalities : 1.Link adaptation 2.Incremental redundancy

FUTURE OF EDGE

ADVANTAGES Balanced improved bit rate at all radio conditions No hardware, software change to GSM core networks Supports download various file types

Handle four times the traffic of standard GPRS Smart & adaptive antennas Triples gross data rate by GSM Circuit-switched and packet-switched traffic coexist

ADVANTAGE OF EDGE

Rapid Internet and WAP access Service available for EDGE phones without tariff charge Avoids creating new system

DISADVANTAGES EDGE requires base station modifications Extra mobile terminal hardware and software required Frequently referred to as 2.75G

CONCLUSION EDGE technology has succeeded the technology previously used in mobile phones. Low risk of investment thanks to the dual mode of GSM/EDGE (Slot by slot) It support the same technology as GPRS but it has got higher data rates of more than 400kbits/sec

EDGE allows the delivery of advanced mobile services such as the downloading of video and music clips, full multimedia messaging, high-speed Internet access and e-mail on the move.

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