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EDGE Technology

Somioranjan Mekap

EDGE Technologyby

Somioranjan Mekap EC200118067

Advisor

Mr. N Srinivasu


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EDGE Technology

Somioranjan Mekap

EDGE Technology

Evolutionary path to 3G services for GSM and TDMA

operators

Builds on General Packet Radio Service (GPRS) air

interface and networks

Phase 1 (Release99 & 2002 deployment) supports best

effort packet data at speeds up to about 384 kbps

Phase 2 (Release2000 & 2003 deployment) will add

Voice over IP capability


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GPRS Airlink

General Packet Radio Service (GPRS)

Same GMSK modulation as GSM

4 channel coding modes

Packet-mode supporting up to about 144 kbps Flexible time slot allocation (1-8)

Radio resources shared dynamically between speech

and data services

Independent uplink and downlink resource allocation


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EDGE Airlink

Extends GPRS packet data with adaptive modulation/coding

2x spectral efficiency of GPRS for best effort data

8-PSK/GMSK at 271 ksps in 200 KHz RF channels supports 8.2

to 59.2 kbps per time slot

Supports peak rates over 384 kbps

Requires linear amplifiers with < 3 dB peak to average power

ratio using linearized GMSK pulses

Initial deployment with less than 2x 1 MHz using 1/3 reuse with

EDGE Compact as a complementary data service


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EDGE Technology

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Conversion of GPRS to EGPRS

EGPRS introduces changes to GPRS only on the base station system part of the

network.


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EDGE Technology

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GPRS and EDGE: A comparison of technical data.


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EDGE Technology

Somioranjan Mekap

EDGE Modulation Techniques


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Coding schemes for GPRS and EGPRS


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Somioranjan Mekap

Packet Handling


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Somioranjan Mekap

Addressing Window

Protocol stalling. (Legend: MAC, Mobile allocation channel; PCU,

Packet control unit; RLC, Radio link control)


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EDGE Technology

Somioranjan Mekap

(Legend: CS, coding scheme; EGPRS, enhanced GPRS; MCS,

modulation coding scheme)

Interleaving


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EDGE Technology

Somioranjan Mekap

Requirements on EDGE

EDGE- and non-EDGE-capable mobile stations should be able toshare one and the same time slot.

EDGE- and non-EDGE-capable transceivers should be deployable

in the same spectrum.

A partial introduction of EDGE should be possible.

It was so decided that two classes of terminals should be

supported by the EDGE standard:

A terminal that provides 8PSK capability in the downlink only,and

A terminal that provides 8PSK in the uplink and downlink.


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EDGE Technology

Somioranjan Mekap

EDGE Benefits

Short-term benefits: Capacity and performance

Mid-term benefits: Complementary technology

Long-term benefit: Harmonization with WCDMA

For Operator:

Migration to wireless multimedia services

Improved customer satisfaction

Quick network implementation

Optimized network investment as GSM enhancement


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Somioranjan Mekap

Benefits to End Users

Improved quality of service

Personal multimedia services

Potentially lower price per bit


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Somioranjan Mekap

Conclusion

EDGE is a 3G technology offering a commonmigration path and convergence for GSM and TDMA

operators

EDGE Compact can be deployed with < 2x 1 MHz of

spectrum

EDGE supports IP packet data at peak rates > 384

kbps

Voice over IP is planned for EDGE R2000 standards


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EDGE Technology

Somioranjan Mekap

References

[1] http://www.mobileipworld.com.

[2] Data capabilities for GSM Evolution to UMTS,November19, 2002. http://www.rysavy.com

[3] Nokia, A comparison between EDGE and Alternative

Technologies, June 5,2001. http://www.3Gamericas.org [4] Enhanced Data Rates for GSM Evolution EDGE; Nokias

vision for a service platform supporting high-speed dataapplications. http://www.nokia.com

[5] EDGE;Introduction of high-speed data in GSM/GPRSnetworks.http://ericsson.com.

[6]IEEE Personal Communications June 1999

[7] http://gsmworld.com


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EDGE Technology

Somioranjan Mekap

ThankYou!

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