General Packet Radio Service - Wikipedia
https://en.wikipedia.org/wiki/General_Packet_Radio_Service
General Packet Radio Service (GPRS) is a packet oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications (GSM). GPRS was established by European Telecommunications Standards Institute (ETSI)...
GPRS - Overview - Tutorialspoint
https://www.tutorialspoint.com/gprs/gprs_overview.htm
GPRS - Overview - General Packet Radio System is also known as GPRS is a Even Time-Division Multiple Access (TDMA) users benefit from this system as it provides packet radio access.