TDD – Time division duplex
What is TDD? TDD is a duplexing method where uplink and downlink transmissions share the same frequency band but are separated in time — alternating
Traffic Flow Template (LTE)
In LTE, Traffic Flow Templates (TFTs) are set up both on the mobile device and at the Packet Gateway (P-GW) to decide if a specific
Transmit diversity
What is Transmit Diversity? Transmit diversity is a technique that combats signal fading by transmitting the same information from two or more independent antennas, ensuring
Transport Block
In UMTS, a Transport Block (TB) refers to the data accepted by the physical layer for joint encoding. The timing of the transport block is
TRX – Transceiver
What is TRX? A TRX (Transceiver) is an electronic device or module that integrates both a transmitter and a receiver, enabling bidirectional wireless communication through
TT – Test tolerance
What is TT? TT (Test Tolerance) represents the allowable margin of error applied to 3GPP conformance test limits to account for measurement uncertainty in the
TTI – Transmission time intervals
What is TTI? TTI (Transmission Time Interval) is the duration of a single transmission on the air interface — the minimum time unit over which
Tunnel Endpoint Identifier
The TEID serves as a unique identifier for a tunnel endpoint within the GTP-U (GPRS Tunnelling Protocol – User) or GTP-C (GPRS Tunnelling Protocol –
Tx – Transmit
What is Tx? Tx (Transmit) in wireless communications refers to the process of sending data through the air from one device to another. The transmit
