02-11-2012, 05:13 PM
3G wireless system
[attachment=37962]
Introduction
3G is the third generation of mobile phone standards and technology, superseding 2.5G. It is based on the International
Telecommunication Union (ITU) family of standards under the IMT-2000.
3G networks enable network operators to offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency.
Implementation and history
The first commercial launch of 3G was also by NTT DoCoMo in Japan on October 1, 2001.
The first pre-commercial 3G network was launched by NTT DoCoMo in Germany branded FOMA, in May 2001 on a pre-release of W-CDMA-GA3Y technology
The second network to go commercially live was by SK Telecom in South Korea on the CDMA2000 1xEV-DO technology in January 2002.
Phones and networks
3G technologies enable network operators to offer users a wider range of
more advanced services while achieving greater network capacity through
improved spectral efficiency
The Network standardization
The International Telecommunication Union (ITU) defined the demands for 3G mobile networks with the IMT-2000 standard. An organization called 3rd Generation Partnership Project (3GPP) has continued that work by defining a mobile system that fulfills the IMT-2000 standard. This system is called Universal Mobile Telecommunications System (UMTS).
[attachment=37962]
Introduction
3G is the third generation of mobile phone standards and technology, superseding 2.5G. It is based on the International
Telecommunication Union (ITU) family of standards under the IMT-2000.
3G networks enable network operators to offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency.
Implementation and history
The first commercial launch of 3G was also by NTT DoCoMo in Japan on October 1, 2001.
The first pre-commercial 3G network was launched by NTT DoCoMo in Germany branded FOMA, in May 2001 on a pre-release of W-CDMA-GA3Y technology
The second network to go commercially live was by SK Telecom in South Korea on the CDMA2000 1xEV-DO technology in January 2002.
Phones and networks
3G technologies enable network operators to offer users a wider range of
more advanced services while achieving greater network capacity through
improved spectral efficiency
The Network standardization
The International Telecommunication Union (ITU) defined the demands for 3G mobile networks with the IMT-2000 standard. An organization called 3rd Generation Partnership Project (3GPP) has continued that work by defining a mobile system that fulfills the IMT-2000 standard. This system is called Universal Mobile Telecommunications System (UMTS).