01-05-2012, 11:34 AM
UMTS
UMTS.ppt (Size: 605 KB / Downloads: 48)
3G UMTS
The Dream (intention)
2G and 2.5G systems are incompatible around the world.
Worldwide devices need to have multiple technologies inside of them, i.e. tri-band phones, dual-mode phones
To develop a single standard that would be accepted around the world
One device should be able to work anywhere !
Standard
The 3G stand was written by the International Telecommunication Union (ITU)
The standard was referred to as IMT-2000
The key to the standards was the available data over the air interface
2Mbps in fixed or in-building environments
384 kbps in pedestrian or urban environments
144 kbps in wide area mobile environments
Variable data rates in large geographic area systems (satellite)
Universal Mobile Telecommunication system (UMTS)
UMTS
Builds upon the successful European GSM network
Incorporates the developments made for the GPRS and EDGE networks
Five areas of standardisation
Radio
Core Network
Terminals
Services
The core network
Asynchronous Transfer Method (ATM)
Has been defined as the core networking technology
ATM allows circuit switched transfer of data using packets.
High speed data transfer – currently maximum 10 Gbps
Guarantee of quality of service for the duration of packet transfer
Small packets used called cells for the transfer of data to minimise the impact on the routers, network and switches.
UMTS.ppt (Size: 605 KB / Downloads: 48)
3G UMTS
The Dream (intention)
2G and 2.5G systems are incompatible around the world.
Worldwide devices need to have multiple technologies inside of them, i.e. tri-band phones, dual-mode phones
To develop a single standard that would be accepted around the world
One device should be able to work anywhere !
Standard
The 3G stand was written by the International Telecommunication Union (ITU)
The standard was referred to as IMT-2000
The key to the standards was the available data over the air interface
2Mbps in fixed or in-building environments
384 kbps in pedestrian or urban environments
144 kbps in wide area mobile environments
Variable data rates in large geographic area systems (satellite)
Universal Mobile Telecommunication system (UMTS)
UMTS
Builds upon the successful European GSM network
Incorporates the developments made for the GPRS and EDGE networks
Five areas of standardisation
Radio
Core Network
Terminals
Services
The core network
Asynchronous Transfer Method (ATM)
Has been defined as the core networking technology
ATM allows circuit switched transfer of data using packets.
High speed data transfer – currently maximum 10 Gbps
Guarantee of quality of service for the duration of packet transfer
Small packets used called cells for the transfer of data to minimise the impact on the routers, network and switches.