Ericsson WCDMA/HSDPA - Manual (Page 65)

Glossary
UPnP IGD
UPnP Internet Gateway Device.
A standard used by UPnP aware clients, such
as MSN Messenger, to work properly from
behind a NAT. TCP/IP
Transmission Control Protocol / Internet
Protocol.
The basic protocols used on the Internet.
TCP is responsible for dividing data up into
packets for delivery and reassembling them
at the destination. IP is responsible for
delivering the packets from source to
destination. When TCP and IP are bundled
with higher-level applications such as HTTP,
FTP, Telnet, and so on, TCP/IP refers to this
whole suite of protocols.
UMTS
Universal Mobile Telecommunications
Service.
A 3G wireless system that delivers high-
bandwidth data and voice services to mobile
users. UMTS has an air interface based on
WCDMA and a core network based on the
General Packet Radio Service (GPRS).
TFTP
Trivial File Transfer Protocol.
A TCP/IP protocol commonly used for
software downloads.
URL
Uniform Resource Locator.
The address of a resource on the Internet.
TKIP
Temporal Key Integrity Protocol.
A protocol used for WPA data encryption. It
ensures that a unique master key is
generated for each packet, supports message
integrity and sequencing rules, and supports
re-keying mechanisms. TKIP avoids the
problems of WEP static keys by dynamically
changing data encryption keys.
USB
Universal Serial Bus.
An interface for connecting peripherals such
as storage devices and printers to a host.
WAN
Wide Area Network.
A network of computers that covers a large
geographical distance. With respect to the
Ericsson W20, WAN refers to the Internet.
UDP
User Datagram Protocol.
A connection-less transport service that
dispenses with the reliability services
provided by TCP. UDP gives applications a
direct interface with IP and the ability to
address a particular application process
running on a host via a port number, without
setting up a connection session.
WCDMA
Wideband CDMA.
The radio access technology for wideband
wireless access supporting 3G services. It
allows very high speed multimedia services
like wireless Internet access and
videoconferencing. WCDMA is also known as
CDMA DS (Direct Sequence).
UPnP
Universal Plug and Play.
A networking architecture that provides
compatibility among networking equipment,
software, or between equipment and
software.
WEP
Wired Equivalent Privacy.
A method for data encryption on wireless
networks. Data is encrypted into blocks of
either 64 bits length or 128 bits length. The
encrypted data can only be sent and received
by users with access to a private encryption
key.
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