Sony USB 598 Appendix A: Glossary

Document 2131141. Rev 1.0 Feb.09 47
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Appendix A: Glossary
1X OneTimesRadioTransmissionTechnology(theʺonetimesʺ
referstothefrequencyspectrum).SupportsInternet
connectionswithdataratesupto153 Kbps.Actualspeed
dependsonthenetworkconditions.Compareto1x‐EVDO.
1x-EVDO Ahigh‐speedstandardforcellularpacketdatacommunica‐
tions.
Rev.AsupportsInternetconnectionswithdataratesupto
3.1 Mbps(downlinkfromthenetwork)and1.8Mbps(uplink
tothenetwork).
Rev.0supportsInternetconnectionswithdataratesupto
2.4 Mbps(downlinkfromthenetwork)and153Kbps(uplink
tothenetwork).
Averagedataratesare:forRev.A:450–800Kbps(downlink
fromthenetwork)and300–400Kbps(uplinktothenetwork);
forRev.0:400‐700Kbps(downlinkfromthenetwork)and
40‐80 Kbps(uplinktothenetwork).
Actualspeeddependsonthenetworkconditions.Compareto
1X.
bps bitspersecond—Theactualdataspeedoverthetransmission
medium.
CDMA CodeDivisionMultipleAccess—Awidebandspreadspectrum
techniqueusedindigitalcellular,personalcommunications
services,andotherwirelessnetworks.Widechannels
(1.25 MHz)areobtainedthroughspreadspectrumtransmis‐
sions,thusallowingmanyactiveuserstosharethesame
channel.Eachuserisassignedauniquedigitalcode,which
differentiatestheindividualconversationsonthesame
channel.
CDMA 1X Alsoknownas1X,thisisahigh‐speedstandardforCDMA
cellularcommunications.
dormant ThepacketdataconnectionhasthelogicalPPPsessionleft
openwhiletheunderlyingphysicallink(theradiochannel)is
released.Whentrafficistoresume,aradiochannelis
re‐acquiredandtheoriginalPPPsessionresumes.
ESN ElectronicSerialNumber—Theuniquefirst‐generationserial
numberassignedtothemodemforcellularnetworkuse.
ComparetoMEID.