5G TERMS AND ACRONYMS

UPCL – Uplink classifier

What is UPCL? UPCL (Uplink Classifier) is a network functionality supported by the UPF (User Plane Function) that classifies and diverts specific user traffic to

UPF – User plane function

What is UPF? The UPF is the 5G Core network function responsible for all user plane data processing and forwarding. It is the gateway between

Uplink Traffic Flow Template

An Uplink Traffic Flow Template (UL TFT) comprises a set of uplink packet filters defined within a TFT. Similarly, a Downlink TFT (DL TFT) consists

uRLLC – Ultra-reliable low-latency communications

What is uRLLC? uRLLC is one of the three fundamental 5G use case categories defined by IMT-2020. It targets applications that simultaneously demand near-zero latency

UW-OFDM – Unique word orthogonal frequency division multiplexing

What is UW-OFDM? UW-OFDM (Unique Word OFDM) is a multicarrier modulation variant that replaces the random cyclic prefix (CP) used in conventional CP-OFDM with a

V2X – Vehicle-to-everything

What is V2X? V2X encompasses all wireless communications between a vehicle and its surrounding environment: other vehicles (V2V), roadside infrastructure (V2I), pedestrians (V2P), and the

vEPC – Virtual EPC

What is vEPC? vEPC (Virtual Evolved Packet Core) is a 4G LTE core network implemented using virtualised network functions (VNFs) running on general-purpose computing hardware,

VSG – Vector signal generator

What is VSG? A VSG (Vector Signal Generator) is a piece of electronic test equipment that generates digitally modulated RF signals for testing and measuring

VSWR – Voltage standing wave ratio

What is VSWR? VSWR (Voltage Standing Wave Ratio) is the ratio of the maximum to minimum voltage amplitude in a standing wave pattern on a

VVM – Vector voltmeter

What is VVM? A VVM (Vector Voltmeter) is a precision electronic instrument that measures the amplitude (voltage) and phase relationship between two input signals at

W-OFDM – Windowed orthogonal frequency division multiplexing

What is W-OFDM? W-OFDM (Windowed OFDM) is a variant of CP-OFDM that applies a time-domain window function to each OFDM symbol to reduce spectral sidelobes

WCDMA – Wideband code division multiple access

What is WCDMA? WCDMA (Wideband CDMA) is the 3G radio access technology standardised by 3GPP as the air interface for UMTS (Universal Mobile Telecommunications System).

Xn Interface

What is Xn Interface? The Xn interface is the logical interface interconnecting gNBs with each other and with ng-eNBs (upgraded 4G base stations connected to