5G TERMS AND ACRONYMS

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