EDGE

EDGE


* Enhanced data rates for GSM evolution.

* GSM/GPRS-Network Enhancementr

* Datarate compareable to UMTS Network (384 kBit/s and more).

* Changing GSM Modulation from GMSK to 8PSK.

* 16-QAM was also proposed for EDGE.

* EDGE provide both PS & CS services.

* QoS profile is defined for each sevice with QoS parameters include priority, reliability & delay.

* Link adaptation scheme is EDGE regularly estimate the link quality and select the appropriate modulation and coding scheme to maximize the user bit rate.

* Incremental redundancy is also used.

* RLC/MAC layer of GPRS need to be modified to accomodate features for multiplexing & link adaptation.