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
