Wireless Glossary – T

Tracking Area includes one or several E-UTRAN cells.

Tables hold parameters for several related items. For example, you can add several potential managers to the SNMP IP access table. Tables can be displayed using the Web Interface, command line interface, and SNMP.

Traffic Aggregate Description consists of a description of the packet filters for the traffic flow aggregate.

Transport Block is defined as the basic data unit exchanged between L1 and MAC.

Traffic Channel is a channel carrying data traffic.

Transmission Control Protocol is one of the core protocols of the Internet Protocol Suite. TCP is one of the two original components of the suite, complementing the Internet Protocol (IP), and therefore the entire suite is commonly referred to as TCP/IP.

A Transport layer protocol that is reliable and connection-oriented. TCP uses acknowledgments, sequencing, and flow control to guarantee reliability.

A suite of protocols was developed by the Department of Defense in order to help develop internetworks.

Time Division – Code Division Multiple Access is a channel access method based on using spread spectrum across multiple time slots. It is shown that a mixture of TDMA and CDMA provides better quality of service for multimedia communications in terms of data throughput and voice/video quality.

Time Division Synchronous Code Division Multiple Access is an air interface found in UMTS mobile telecommunications networks in China as an alternative to W-CDMA. Together with TD-CDMA, it is also known as UMTS-TDD or IMT 2000 Time-Division (IMT-TD).

Time Division Duplexing is the application of time-division multiplexing to separate outward and return signals. It emulates full duplex communication over a half duplex communication link.

TDD is the act of time-division multiplexing to separate outbound and returning signals. It imitates full duplex communication over a half duplex communication link.

Time Division Multiplexing is a type of digital (or rarely analog) multiplexing in which two or more bit streams or signals are transferred apparently simultaneously as sub-channels in one communication channel, but are physically taking turns on the channel.

Time Division Multiple Access is a channel access method for shared medium networks. It allows several users to share the same frequency channel by dividing the signal into different time slots. The users transmit in rapid succession, one after the other, each using its own time slot.

For shared medium networks, TDMA is a channel access method which allows multiple users to share the same frequency channel by dividing the signal into different time slots.

Teleservice is a type of telecommunication service that provides the complete capability, including terminal equipment functions, for communication between users according to standardized protocols and transmission capabilities established by agreement between operators.

A TCP/IP protocol that offers terminal emulation to a remote host by creating a virtual terminal.

Terminal is a device into which a UICC can be inserted and which is capable of providing access to 3GPP System services to users, either alone or in conjunction with a UICC.

Transport Format Combination Indicator is a representation of the current Transport Format Combination.

Traffic Flow Template is used to discriminate between different user payloads. It uses Internet Protocol header information such as source and destination IP addresses and TCP port numbers to filter packets such as VoIP from web traffic so that each can be sent down the respective bearers with appropriate QoS.

Throughput is the average rate of successful message delivery over a communication channel. This data may be delivered over a physical or logical link, or pass through a certain network node. The throughput is usually measured in bits per second (bit/s or bps), and sometimes in data packets per second or data packets per time slot.

Fiber with a closely fitting buffer tube.

Temporal Key Integrity Protocol

A field in the data that the cmd show esn command generates from data in the SQL database in the Bandwidth and Authentication Manager (BAM) server. This field identifies the time of day of the most recent authentication attempt by the SM.

Transparent Mode. is one of three Radio Link Control data transmission modes. The TM RLC is transparent to the Protocol Data Units that pass through it – no functions are performed and no RLC overhead is added; thus an RLC Service Data Unit is directly mapped to an RLC PDU and vice versa.

Transparent Mode Data is the type of Protocol Data Unit used in Radio Link Control Transparent Mode. It contain only a data field and does not have any RLC headers.

Total number of authentication requests failed. A field in the data that the cmd show esn command generates from the SQL database in the Bandwidth and Authentication Manager (BAM) server. This field indicates how many times the SM (identified by ESN in the related data) attempted to authenticate but was denied by BAM.

Transport Network Layer founds physical and logical connections between the Radio Access Network and the Core Network.

Defined by the IEEE 802.5 standard, the token ring is a LAN protocol that enacts a token-passing media access technology in a physical ring or physical star topology. This in turn creates a logical ring topology.

Theoretical amounts of data. See also Buckets.

Topology is the physical layout of network components (cable, stations, gateways, hubs, and so on).

Link-state and balanced hybrid routing protocols use this table. It manages all possible routes to any given subnet along with the associated metrics.

8-bit field in that prioritizes data in a IP transmission.

Transmitter Power Control is the process of setting the transmission power.

Traffic channel is a logical channel which carries user information.

Transmit Power Control is a technical mechanism used within some networking devices in order to prevent too much unwanted interference between different wireless networks (e.g. the owner’s network and the neigbour’s network).

The network devices supporting this feature are Wireless LAN devices in the 5GHz band compliant to the IEEE 802.11a. The idea of the mechanism is to reduce automatically the used transmission output power when other networks are within range. Reduced power means reduced interference problems. The power level of a single device can be reduced by 6dB which should result in an accumulated power level reduction (the sum of radiated power of all devices currently transmitting) of at least 3dB (which is half of the power).

A bridge that is “unseen” by other devices on a network.

Transparent routing refers to routing a datagram between disparate address realms, by modifying address contents in the IP header to be valid in the address realm into which the datagram is routed.

The Channels offered by the physical layer to Layer 2 for data transport between peer L1 entities are denoted as Transport Channels.

Transport Format is defined as a format offered by L1 to MAC for the delivery of a Transport Block Set during a Transmission Time Interval on a Transport Channel. The Transport Format consist of two parts – one dynamic part and one semi-static part.

OSI Model Layer 4. The Transport Layer is in charge of end-to-end connections and data delivery between two hosts. One key role of this layer is the capability to segment and reassemble data.

A triggered update occurs when a router immediately puts out an update rather than waiting for its normal update interval. This is a routing loop mitigation process.

Created to deal with the weaknesses of DES. In order to improve the strength of DES, 3DES runs the DES algorythm three times using different keys.

Trivial File Transfer Protocol (TFTP) is a lightweight protocol for transferring files that is like a simple form of File Transfer Protocol (FTP). A TFTP client is implemented on the unit. Using the upload and download commands, the unit can copy a file to or from a TFTP server. TFTP server software is provided on the product CD-ROM.

A trunk is an interconnection between switches that multiplexes many signals simultaneously from all VLANs to other switches.

Time-Switched Transmit Diversity is a multiple antenna transmission technique where a signal is transmitted from only a subset (usually one) of the available antennas at any time.

Transmit.

Transmit Diversity is the practice of two or more physically separate antennas for transmission.

Transmission opportunities