UMTS (Universal Mobile Telecommunications System) is developed by the International Organization for Standardization 3GPP global 3G standard. Its main access networks, including CDMA and packet-based core network and a series of technical standards and interface protocols.
UM TS as a complete 3G mobile technology standard, UMTS is not limited to define the air interface. In addition to WCDMA as the preferred air interface technologies continue to improve access to outside, UMTS also have introduced the TD-SCDMA and HSDPA technology. A third-generation (3G) mobile phone technology [1]. It uses WCDMA as the underlying standard by 3GPP stereotypes, on behalf of Europe ITU IMT-2000 requirements for 3G cellular wireless system response. UMTS
UMTS is sometimes also called 3GSM, stressed the combination of 3G technology and is the follow-up to the standard GSM standard. UMTS packet switching system is evolved by the GPRS system, so the system's architecture is quite similar.
UM TS as a complete 3G mobile technology standard, UMTS is not limited to define the air interface. In addition to WCDMA as the preferred air interface technologies continue to improve access to outside, UMTS also have introduced the TD-SCDMA and HSDPA technology. A third-generation (3G) mobile phone technology [1]. It uses WCDMA as the underlying standard by 3GPP stereotypes, on behalf of Europe ITU IMT-2000 requirements for 3G cellular wireless system response. UMTS
UMTS is sometimes also called 3GSM, stressed the combination of 3G technology and is the follow-up to the standard GSM standard. UMTS packet switching system is evolved by the GPRS system, so the system's architecture is quite similar.
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