Correct Answer: Definition: 3G, known as 3rd Generation, is a standard for mobile / cellular phones It provides the services that fulfill the International Telecommunication Union specifications The application services of 3G include wireless voice telephone, mobile internet access, video calls and mobile television – all in a mobile environment 3G allows simultaneous use of speech and data services 3G provides peak data rates of at least 200 KBits according to the IMT-2000 specification Mobile broadband access of several MBits to laptop computer systems, smart phones is provided by latest 35G, 375G versions 3G standards: UMTS: - Universal Mobile Telecommunications System – One of the 3G mobile telecommunications technologies, also being developed into a 4G technology - Most common form of UMTS uses W-CDMA as an underlying air interface - UMTS also covers Radio Access Network – UMTS Terrestrial Radio Access Network (UTRAN), and Mobile Application Part (MAP) - Users are authenticated via USIM cards (Universal Subscriber Identity Module) CDMA2000 - Also known as IMT Multi-Carrier (IMT-MC), uses CDMA channel access for sending voice, data and signaling data between mobile phones and cell sites - The standards are CDMA2000 IX, CDMA2000 EV-DOR Rev0, CDMA2000 EV-DO RevA and CDMA2000 EV-RevB They are approved radio interfaces for the ITU’s IMT-2000
