Nokia 2003 Annual Report Download - page 109

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Packet switching:
A technique that enables digitized data to be chopped up into a number of
packets—sometimes called datagrams—and sent out over various network routes to their location.
PDA:
Personal Digital Assistant.
Platform, platform concept:
A basic system on which different applications can be developed.
Service delivery platforms:
The foundation on which mobile network operators’ services and
applications are built. Service delivery platforms handle a set of common functions for all services,
such as charging, maintaining subscription profiles, authentication and authorization. They can
also offer other service-enabling functions such as messaging, content download and digital rights
management. In addition to these functions, service delivery platforms permit new services to be
deployed easier and faster.
TCP/IP (Transmission Control Protocol/Internet Protocol):
A public transmission protocol,
originally defined by the US Department of Defense, that offers message routing and reliable data
transmission.
TDMA (Time Division Multiple Access):
A digital transmission technology that breaks voice
signals into sequential pieces of a defined length, places each piece into an information conduit at
specific intervals and then reconstructs the pieces at the end of the conduit.
TD—SCDMA (Time Division Synchronous Code Division Multiple Access):
A proposed Chinese
standard for high-speed mobile communications networks.
TETRA (Terrestrial Trunked Radio):
An open digital trunked radio standard defined by ETSI to
meet the needs of the most demanding professional mobile radio users.
VPN (Virtual Private Network):
A private network built using a public network as a base.
WAP (Wireless Application Protocol):
A global, license-free and platform-independent protocol
designed for Internet content and advanced telephony services on digital cellular phones and
other wireless terminals.
WCDMA (Wideband Code Division Multiple Access):
A digital transmission technology based on
CDMA and planned to be used as the air interface access method in third generation mobile
systems.
WLAN (Wireless Local Area Network):
A local area network using wireless connections, such as
radio, microwave or infrared links, in place of physical cables.
xDSL:
Various forms of Digital Subscriber Line technologies.
XHTML (Extensible HyperText Markup Language):
XHTML is the markup language used in WAP
2.0 specification, which is now a part of the OMA WAP 2.0 Release. XHTML bridges the divide
between WAP and WWW worlds, providing an open platform for global content creation.
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