Sierra Wireless 20070914 Manual

A SERVICE OF

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Introduction to the PinPoint X

Rev 3.0B Feb.08 10

EDGE

EDGE(EnhancedDataratesforGSMEvolution)providesend‐

to‐endpacketdataserviceswithanenhancedconnectivity

buildingonGPRStechnologyandusingtheestablishedGSM

networks.EDGEprovideshighertransmissionratesandbetter

transmissionqualityfordatathanGPRS.EDGEcancarrydata

atspeedstypicallyupto 384

kbit/sinpacketmode.

GPRS

GeneralPacketRadioService(GPRS)ispacket‐switchedwith

manyuserssharingthesametransmissionchannel,butonly

transmittingwhentheyhavedatatosend.Thismeansthatthe

totalavailablebandwidthcanbeimmediatelydedicatedto

thoseuserswhoareactuallysendingatanygivenmoment,

providinghigherutilizationwhere

usersonlysendorreceive

dataintermittently.GPRSprovidesspeedsof30–70kbpswith

burstsupto170 kbps.