UMTS SERVICES



UMTS offers teleservices (like speech or SMS) and bearer services, which provide the capability for information transfer between access points. It is possible to negotiate and renegotiate the characteristics of a bearer service at session or connection establishment and during ongoing session or connection. Both connection oriented and connectionless services are offered for Point-to-Point and Point-to-Multipoint communication.

Bearer services have different QoS parameters for maximum transfer delay, delay variation and bit error rate. Offered data rate targets are:
· 144 kbits/s satellite and rural outdoor
· 384 kbits/s urban outdoor
· 2048 kbits/s indoor and low range outdoor

UMTS network services have different QoS classes for four types of traffic:
· Conversational class (voice, video telephony, video gaming)
· Streaming class (multimedia, video on demand, webcast)
· Interactive class (web browsing, network gaming, database access)
· Background class (email, SMS, downloading)

UMTS will also have a Virtual Home Environment (VHE). It is a concept for personal service environment portability across network boundaries and between terminals. Personal service environment means that users are consistently presented with the same personalised features, User Interface customisation and services in whatever network or terminal, wherever the user may be located. UMTS also has improved network security and location based services.

Source of news taken away from : www.umtsworld.com