24-05-2014, 11:22 AM
EDGE Technology
EDGE Technology.ppt (Size: 593 KB / Downloads: 15)
Evolutionary path to 3G services for GSM and TDMA operators
Builds on General Packet Radio Service (GPRS) air interface and networks
Phase 1 (Release’99 & 2002 deployment) supports best effort packet data at speeds up to about 384 kbps
Phase 2 (Release’2000 & 2003 deployment) will add Voice over IP capability
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
Requirements on EDGE
– EDGE- and non-EDGE-capable mobile stations should be able to share 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.
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
Conclusion
EDGE is a 3G technology offering a common migration 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 R’2000 standards