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Transaction Capabilities Application Part supports exchanging non-circuit related data between applications across SS7 network with SCCP connection-less service.
Traffic Channel.
Transmission Control Protocol. The TCP part of TCP/IP. TCP and UDP (User Datagram Protocol) are the two transport protocols in TCP/IP (see below). TCP ensures that a message is sent accurately and in its entirety.
Transmission Control Protocol/Internet Protocol). A communications protocol developed under contract from the U.S. Department of Defense to internetwork dissimilar systems. Invented by Vinton Cerf and Bob Kahn, this de facto UNIX standard is the protocol of the Internet and has become the global standard for communications. TCP/IP is the standard communications protocol required for computers communicating over the Internet. To communicate using TCP/IP, computers need a set of software instructions or components called a TCP/IP stack.
Time Division CDMA.
Time Division Duplex; a radio technology for use in unpaired spectrum. WCDMA/UMTS includes a band for TDD mode usage and both PHS and DECT use this technology.
Time Division Multiple Access; a technique for multiplexing multiple users onto a single channel on a single carrier by splitting the carrier into time slots and allocating these on an a-needed basis.
Time Division-Synchronous (CDMA; a CDMA variant developed by Chinese vendors that is claimed to offer high data rates and greater coverage.
A wireless communications system designed for the collection and dissemination of information, particularly refers to vehicle-based electronic systems, vehicle tracking and positioning, on-line vehicle navigation and information systems and emergency assistance. .
Terrestrial Trunked Radio; a European developed digital private mobile radio technology that is now being extensively deployed worldwide.
A competitive digital PMR technology to TETRA developed by French vendors.
A frame within a TDMA schema; has a time interval of 576 microseconds. Physical content of a timeslot is known as a burst. Five different burst types exist, they are distinguished by different TDMA frame divisions (see NB, FB, SB, AB and DB).
Telecommunications and Internet Protocol Harmonization over Networks; an ETSI project designed to support the market for voice communications and voice band communications. In particular TIPHON will ensure that users on IP-based networks can communicate with those on circuit switched networks.
Telecommunications Management Network
Temporary Mobile Subscriber Identity; covers the IMSI to prevent over-the-air interception and tracing.
Transcoder Rate Adapter Unit; the transport unit for a 16bit/s traffic channel on the A-bis interface.
Refers to a mobile phone able to operate on the three internationally designated GSM frequencies - 900, 1800 and 1900 MHz.
A technology that enables the optimal synchronization of calendars, address books, action lists and memoranda. It enables multi-point, one-step synchronization of wireless and wireline devices, desktop computers and server-based applications and services.
Transmitter/receiver (transceiver).

The list of terms for mobile cellular communication is for our visitors. The Glossary is intended for educational purposes only.

While we have taken great care to insure that all terms are accurately defined, we assume no liability for mentions or omissions that may involve alternate descriptions.