Second Generation Wireless

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:International_Standard
gptkbp:alsoKnownAs	2G
gptkbp:dataService	gptkb:GPRS gptkb:EDGE
gptkbp:declinedAfter	late 2000s
gptkbp:enabledMobileInternet	gptkb:GPRS gptkb:EDGE gptkb:WAP
gptkbp:enabledService	gptkb:WAP MMS
gptkbp:encryption	gptkb:A5/1 gptkb:A5/2
gptkbp:feature	higher capacity better security digital voice transmission improved call quality text messaging (SMS)
gptkbp:frequency	1800 MHz 1900 MHz 900 MHz
https://www.w3.org/2000/01/rdf-schema#label	Second Generation Wireless
gptkbp:introducedIn	1991
gptkbp:limitation	limited data speeds not suitable for modern internet applications
gptkbp:mainAdvantageOver1G	lower power consumption higher spectral efficiency digital encryption support for SMS
gptkbp:notableFor	gptkb:IS-95 gptkb:D-AMPS gptkb:cdmaOne gptkb:GSM
gptkbp:phasedOutIn	many countries
gptkbp:predecessor	First Generation Wireless
gptkbp:replacedBy	analog cellular networks
gptkbp:standardizedBy	gptkb:3GPP gptkb:TIA gptkb:ETSI
gptkbp:successor	Third Generation Wireless
gptkbp:technology	gptkb:IS-95 gptkb:D-AMPS gptkb:GSM gptkb:CDMA
gptkbp:usedIn	mobile phones feature phones some rural areas early smartphones
gptkbp:bfsParent	gptkb:SGW
gptkbp:bfsLayer	6