The 3rd Generation Partnership Project is an umbrella term for a number of standards organizations which develop protocols for mobile telecommunications. Its best known work is the development and maintenance of:
GSM and related 2G and 2.5G standards, including GPRS and EDGE
UMTS and related 3G standards, including HSPA and HSPA+
LTE and related 4G standards, including LTE Advanced and LTE Advanced Pro
5G NR and related 5G standards, including 5G-Advanced
An evolved IP Multimedia Subsystem developed in an access independent manner
