5G TERMS AND ACRONYMS

gNB – gNodeB

5G wireless base stations that transmit and receive communications between the user equipment and the mobile network.

gNB (gNodeB)

What is gNB? The gNB (gNodeB) is the 5G NR base station — the radio access node that provides the wireless interface between the 5G

GPRS – General packet radio services

A packet-based wireless communication standard for delivering data to mobile devices via a cellular connection.

Hard Slicing

What is Hard Slicing? Hard slicing is a network slicing implementation where physical or strictly reserved logical resources are exclusively dedicated to a specific network

Harmonic

What is Harmonic? A harmonic is a signal at a frequency that is an exact integer multiple of a fundamental reference frequency. In RF and

HD – Half duplex

What is HD? HD (Half Duplex) is a two-way communication mode where data can flow in both directions between two nodes, but only one direction

HDML – Handheld Device Markup Language

Handheld Device Markup Language is modified version that is a modified version of HTML (Hypertext Markup Language) and is intended to be used on wireless

Home Gateway

The Home Gateway is the successor to the widely popular STB. While the STB primarily focuses on providing TV services, the HGW is designed to

Home Subscriber Server

The HSS serves as the central database for a given subscriber, storing essential information for network nodes. This includes user identification, security details, location, and

HSS – Home subscriber server

What is HSS? The HSS is the central subscriber database in a 4G LTE network (EPC). It stores subscriber authentication credentials, service profiles, and roaming

ICI – Intercarrier interference

What is ICI? ICI (Intercarrier Interference) is a form of interference in OFDM systems where energy from one subcarrier leaks into adjacent subcarriers, degrading signal

IFBW – Intermediate frequency bandwidth

What is IFBW? IFBW (Intermediate Frequency Bandwidth) is the bandwidth of the filter applied at the intermediate frequency (IF) stage in a superheterodyne receiver or

IFF – Indirect far field

What is IFF? IFF (Indirect Far Field) is a 3GPP-approved over-the-air (OTA) test methodology that transforms near-field measurements into equivalent far-field results without requiring the

IMEI – International mobile equipment identity

What is IMEI? IMEI (International Mobile Equipment Identity) is a unique 15-digit number assigned to every 3GPP mobile device (smartphone, tablet, IoT module) that identifies

IMSI – International mobile subscriber identity

What is IMSI? IMSI (International Mobile Subscriber Identity) is a globally unique number stored on the SIM/USIM card that identifies a mobile subscriber within the

IMT-2020 – International Mobile Telecommunications-2020

A standard that sets the requirements for 5G networks, devices, and services. IMT-2020 was developed by the International Telecommunications Union (ITU) Radiocommunication Sector in 2015.

IMT-2020 (International Mobile Telecommunications-2020)

What is IMT-2020? IMT-2020 is the ITU-R framework that defines the global vision, use cases, and minimum technical requirements for 5G mobile communications systems. Published

IoT (Internet of Things)

What is IoT? The Internet of Things (IoT) is the global network of physical objects — sensors, machines, vehicles, appliances, infrastructure — embedded with connectivity