3GPP standards

thumb|An SMS message received on a Siemens SL55 Short Message Service (SMS) is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile phones exchange short text messages, typically transmitted over cellular networks.

thumb|GPRS sign shown in notification bar of a Samsung Galaxy smartphone

thumb|3G sign shown in notification bar on an Android powered smartphone

standard way to send messages

The 3rd Generation Partnership Project (3GPP) 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, 2.5G, and 2.75G 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 (IMS) developed in an access independent manner

a number that uniquely identifies every user of a cellular network

communications protocols

method of sending messages to multiple mobile telephone users in a defined area at the same time

communications protocol

technical standard for wireless, broadband telecommunication

architectural framework of telecommunications

gateway between mobile networks and frequently the Internet

used in mobile phones to reset a PIN that has been lost or forgotten

use of a wireless broadband network for the purpose of vocal conversation

network and communication protocol

radio access technology

A5/1 is a stream cipher used to provide over-the-air communication privacy in the GSM cellular telephone standard. It is one of several implementations of the A5 security protocol. It was initially kept secret, but became public knowledge through leaks and reverse engineering. A number of serious weaknesses in the cipher have been identified.

governing element in the UMTS radio access network

KASUMI is a block cipher used in UMTS, GSM, and GPRS mobile communications systems. In UMTS, KASUMI is used in the confidentiality (f8) and integrity algorithms (f9) with names UEA1 and UIA1, respectively. In GSM, KASUMI is used in the A5/3 key stream generator and in GPRS in the GEA3 key stream generator.

all user equipment and software needed for communication with a mobile network

central part of the general packet radio service

hardware that is connected to the mobile phone network

standardized term used in 3G telecommunications systems

smart card

length of time a signal takes to reach the base station from a mobile phone

mobile telecommunications standard

protocol specified by 3GPP used in UMTS and LTE

concept and a protocol name for a set of control messages

system allowing providers of communication services to charge customers based on service usage