Glossary - Glossary
1G 1G signifies first-generation wireless analog technology standards that originated in the 1980s. This standard was eventually replaced by 2G, which uses digital radio signals, rather than analog.
2G 2G is short for second generation wireless telephone technology which superseded 1G in the early 1990s. 2G networks are fully digital which meant phone conversations were digitally encrypted, making it impossible for third parties to eavesdrop on calls; mobile phone penetration was greatly increased; and data services, such as SMS texting could be introduced.
3G 3G refers to the third generation of developments in wireless technology, especially mobile communications. 3G technologies enable network operators to offer users a wider range of more advanced services while achieving greater network capacity.
4G 4G is the short term for fourth-generation wireless, the stage of broadband mobile communications that will supersede the third generation (3G). Neither standards bodies nor carriers have concretely defined or agreed upon what exactly 4G will be. Fourth generation networks are likely to use a combination of WiMAX and WiFi.
CDMA Code division multiple access (CDMA) refers to any of several protocols used in second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth.
EDGE Enhanced Data rates for GSM Evolution (EDGE) is a digital mobile phone technology that allows increased data transmission rates and improved data transmission reliability. EDGE is generally classified as 2.75G, although it is part of the 3G definition.
eHSPA also known as HSPA Evolution, HSPA+, I-HSPA or Internet HSPA, this is a wireless broadband standard defined in 3GPP Release 7. eHSPA provides HSPA data rates up to 42Mbps on the downlink and 22Mbps on the uplink with MIMO technologies and higher order modulation. Telstra announced that their Next G network is capable of offering eHSPA speeds in June 2008.
EVDO Evolution-Data Optimized (EVDO) is a 3G wireless radio broadband data standard that enables faster speeds than are available in existing CDMA networks or other 2G services, such as GPRS or EDGE.
GPRS General Packet Radio Service (GPRS) is a packet oriented Mobile Data Service available to users of Global System for Mobile Communications (GSM). GPRS can be used for services such as WAP access, SMS, MMS, and for Internet communication services such as email and World Wide Web access. 2G cellular systems combined with GPRS are often described as "2.5G", that is, a technology between the second (2G) and third (3G) generations of mobile telephony.
GSM Global System for Mobile communications (GSM) is a 2G mobile phone system that is the most popular standard for mobile phones in the world. Its ubiquity makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world.
HSDPA High-Speed Downlink Packet Access (HSDPA) is a 3G mobile telephony communications protocol in the HSPA family, which allows networks based on Universal Mobile Telecommunications System (UMTS) to increase data capacity and speed up transfer rates.
HSPA High Speed Packet Access (HSPA), is a family of high-speed 3G digital data services provided by cellular carriers worldwide that use the GSM technology. HSPA service works with HSPA cellphones as well as laptops and portable devices with HSPA modems. The two established standards of HSPA are HSDPA and HSUPA.
HSPA+ - HSPA+, also known as Evolved HSPA is a wireless broadband standard that provides HSPA data rates up to 42 Mbit/s on the downlink and 22 Mbit/s on the uplink with MIMO technologies and higher order modulation.
HSUPA High-Speed Uplink Packet Access (HSUPA) is a 3G mobile telephony protocol in the HSPA family. The technical purpose of the Enhanced Uplink feature is to improve the performance of uplink dedicated transport channels, i.e. to increase capacity and throughput and reduce delay.
LTE Long Term Evolution (LTE) is the name given to a project to improve the UMTS mobile phone standard to cope with future technology evolutions. Goals include improving spectral efficiency, lowering costs, improving services, making use of new spectrum and refarmed spectrum opportunities, and better integration with other open standards.
UMTS Universal Mobile Telecommunications System (UMTS) is one of the third-generation (3G) cell phone technologies, which is also being developed into a 4G technology. To differentiate UMTS from competing network technologies, UMTS is sometimes marketed as 3GSM, emphasizing the combination of the 3G nature of the technology and the GSM standard which it was designed to succeed.
WiMAX Worldwide Interoperability for Microwave Access (WiMAX) is a telecommunications technology that uses radio spectrum to transmit bandwidth between digital devices. Similar to WiFi, WiMAX brings with it the ability to transmit over far greater distances and to handle much more data.