Abbreviations and Acronyms

3GPP Third Generation Partnership Project

5GCN 5G Core Network

AAS Active Antenna System

ACIR Adjacent Channel Interference Ratio

ACK Acknowledgment (in ARQ protocols)

ACLR Adjacent Channel Leakage Ratio

ACS Adjacent Channel Selectivity

ADC Analog-to-Digital Converter

AF Application Function

AGC Automatic Gain Control

AM Acknowledged Mode (RLC configuration)

AM Amplitude Modulation

AMF Access and Mobility Management Function

A-MPR Additional Maximum Power Reduction

AMPS Advanced Mobile Phone System

ARI Acknowledgment Resource Indicator

ARIB Association of Radio Industries and Businesses

ARQ Automatic Repeat-reQuest

AS Access Stratum

ATIS Alliance for Telecommunications Industry Solutions

AUSF Authentication Server Function

AWGN Additive White Gaussian Noise

BC Band Category

BCCH Broadcast Control Channel

BCH Broadcast Channel

BiCMOS Bipolar Complementary Metal Oxide Semiconductor

BPSK Binary Phase-Shift Keying

BS Base Station

BW Bandwidth

BWP Bandwidth part

CA Carrier aggregation

CACLR Cumulative Adjacent Channel Leakage Ratio

CBG Codeblock group

CBGFI CBG flush information

CBGTI CBG transmit indicator

CC Component Carrier

CCCH Common Control Channel

CCE Control Channel Element

CCSA China Communications Standards Association

CDM Code Division Multiplexing

CDMA Code-Division Multiple Access

CEPT European Conference of Postal and Telecommunications Administration

CITEL Inter-American Telecommunication Commission

C-MTC Critical Machine-Type Communications

CMOS Complementary Metal Oxide Semiconductor

CN Core Network

CoMP Coordinated Multi-Point Transmission/Reception

COREST Control resource set

CP Cyclic Prefix

CP Compression Point

CQI Channel-Quality Indicator

CRB Common resource block

CRC Cyclic Redundancy Check

C-RNTI Cell Radio-Network Temporary Identifier

CS Capability Set (for MSR base stations)

CSI Channel-State Information

CSI-IM CSI Interference Measurement

CSI-RS CSI Reference Signals

CS-RNTI Configured scheduling RNTI

CW Continuous Wave

D2D Device-to-Device

DAC Digital-to-Analog Converter

DAI Downlink Assignment Index

D-AMPS Digital AMPS

DC Dual Connectivity

DC Direct Current

DCCH Dedicated Control Channel

DCH Dedicated Channel

DCI Downlink Control Information

DFT Discrete Fourier Transform

DFTS-OFDM DFT-Spread OFDM (DFT-precoded OFDM, see also SC-FDMA)

DL Downlink

DL-SCH Downlink Shared Channel

DM-RS Demodulation Reference Signal

DR Dynamic Range

DRX Discontinuous Reception

DTX Discontinuous Transmission

EDGE Enhanced Data Rates for GSM Evolution, Enhanced Data Rates for Global Evolution

ECC Electronic Communications Committee (of CEPT)

eIMTA Enhanced Interference Mitigation and Traffic Adaptation

EIRP Effective Isotropic Radiated Power

EIS Equivalent Isotropic Sensitivity

eMBB enhanced MBB

EMF Electromagnetic Field

eNB eNodeB

EN-DC E-UTRA NR Dual-Connectivity

eNodeB E-UTRAN NodeB

EPC Evolved Packet Core

ETSI European Telecommunications Standards Institute

E-UTRA Evolved UTRA

EVM Error Vector Magnitude

FCC Federal Communications Commission

FDD Frequency Division Duplex

FDM Frequency Division Multiplexing

FET Field-Effect Transistor

FDMA Frequency-Division Multiple Access

FFT Fast Fourier Transform

FoM Figure-of-Merit

FPLMTS Future Public Land Mobile Telecommunications Systems

FR1 Frequency Range 1

FR2 Frequency Range 2

GaAs Gallium Arsenide

GaN Gallium Nitride

GERAN GSM/EDGE Radio Access Network

gNB gNodeB

gNodeB generalized NodeB

GSA Global mobile Suppliers Association

GSM Global System for Mobile Communications

GSMA GSM Association

HARQ Hybrid ARQ

HBT Heterojunction Bipolar Transistor

HEMT High Electron-Mobility Transistor

HSPA High-Speed Packet Access

IC Integrated Circuit

ICNIRP International Commission on Non-Ionizing Radiation

ICS In-Channel Selectivity

IEEE Institute of Electrical and Electronics Engineers

IFFT Inverse Fast Fourier Transform

IL Insertion Loss

IMD Inter Modulation Distortion

IMT-2000 International Mobile Telecommunications 2000 (ITU’s name for the family of 3G standards)

IMT-2020 International Mobile Telecommunications 2020 (ITU’s name for the family of 5G standards)

IMT-Advanced International Mobile Telecommunications Advanced (ITU’s name for the family of 4G standards)

InGaP Indium Gallium Phosphide

IOT Internet of Things

IP Internet Protocol

IP3 3rd order Intercept Point

IR Incremental Redundancy

ITRS International Telecom Roadmap for Semiconductors

ITU International Telecommunications Union

ITU-R International Telecommunications Union-Radiocommunications Sector

KPI Key Performance Indicator

L1-RSRP Layer 1 Reference Signal Receiver Power

LC Inductor(L)-Capacitor

LAA License-Assisted Access

LCID Logical Channel Index

LDPC Low-Density Parity Check Code

LO Local Oscillator

LNA Low-Noise Amplifier

LTCC Low Temperature Co-fired Ceramic

LTE Long-Term Evolution

MAC Medium Access Control

MAC-CE MAC control element

MAN Metropolitan Area Network

MBB Mobile Broadband

MB-MSR Multi-Band Multi Standard Radio (base station)

MCG Master Cell Group

MCS Modulation and Coding Scheme

MIB Master Information Block

MMIC Monolithic Microwave Integrated Circuit

MIMO Multiple-Input Multiple-Output

mMTC massive Machine Type Communication

MPR Maximum Power Reduction

MSR Multi-Standard Radio

MTC Machine-Type Communication

MU-MIMO Multi-User MIMO

NAK Negative Acknowledgment (in ARQ protocols)

NB-IoT Narrow-Band Internet-of-Things

NDI New-Data Indicator

NEF Network exposure function

NF Noise Figure

NG The interface between the gNB and the 5G CN

NG-c The control-plane part of NG

NGMN Next Generation Mobile Networks

NG-u The user-plane part of NG

NMT Nordisk MobilTelefon (Nordic Mobile Telephony)

NodeB NodeB, a logical node handling transmission/reception in multiple cells. Commonly, but not necessarily, corresponding to a base station

NOMA Nonorthogonal Multiple Access

NR New Radio

NRF NR repository function

NS Network Signaling

NZP-CSI-RS Non-zero-power CSI-RS

OBUE Operating Band Unwanted Emissions

OCC Orthogonal Cover Code

OFDM Orthogonal Frequency-Division Multiplexing

OOB Out-Of-Band (emissions)

OSDD OTA Sensitivity Direction Declarations

OTA Over-The-Air

PA Power Amplifier

PAE Power-Added Efficiency

PAPR Peak-to-Average Power Ratio

PAR Peak-to-Average Ratio (same as PAPR)

PBCH Physical Broadcast Channel

PCB Printed Circuit Board

PCCH Paging Control Channel

PCF Policy control function

PCG Project Coordination Group (in 3GPP)

PCH Paging Channel

PCI Physical Cell Identity

PDC Personal Digital Cellular

PDCCH Physical Downlink Control Channel

PDCP Packet Data Convergence Protocol

PDSCH Physical Downlink Shared Channel

PDU Protocol Data Unit

PHS Personal Handy-phone System

PHY Physical Layer

PLL Phase-Locked Loop

PM Phase Modulation

PMI Precoding-Matrix Indicator

PN Phase Noise

PRACH Physical Random-Access Channel

PRB Physical Resource Block

P-RNTI Paging RNTI

PSD Power Spectral Density

PSS Primary Synchronization Signal

PUCCH Physical Uplink Control Channel

PUSCH Physical Uplink Shared Channel

QAM Quadrature Amplitude Modulation

QCL Quasi Co-Location

QoS Quality-of-Service

QPSK Quadrature Phase-Shift Keying

RACH Random Access Channel

RAN Radio Access Network

RA-RNTI Random Access RNTI

RAT Radio Access Technology

RB Resource Block

RE Resource Element

RF Radio Frequency

RFIC Radio Frequency Integrated Circuit

RI Rank Indicator

RIB Radiated Interface Boundary

RIT Radio Interface Technology

RLC Radio Link Control

RMSI Remaining Minimum System Information

RNTI Radio-Network Temporary Identifier

RoAoA Range of Angle of Arrival

ROHC Robust Header Compression

RRC Radio Resource Control

RRM Radio Resource Management

RS Reference Symbol

RSPC IMT-2000 Radio Interface Specifications

RSRP Reference Signal Received Power

RV Redundancy Version

RX Receiver

SCG Secondary Cell Group

SCS Sub-Carrier Spacing

SDL Supplementary Downlink

SDMA Spatial Division Multiple Access

SDO Standards Developing Organization

SDU Service Data Unit

SEM Spectrum Emissions Mask

SFI Slot format indicator

SFI-RNTI Slot format indicator RNTI

SFN System Frame Number (in 3GPP).

SI System Information Message

SIB System Information Block

SIB1 System Information Block 1

SiGe Silicon Germanium

SINR Signal-to-Interference-and-Noise Ratio

SIR Signal-to-Interference Ratio

SiP System-in-Package

SI-RNTI System Information RNTI

SMF Session management function

SNDR Signal to Noise-and-Distortion Ratio

SNR Signal-to-Noise Ratio

SoC System-on-Chip

SR Scheduling Request

SRI SRS resource indicator

SRIT Set of Radio Interface Technologies

SRS Sounding Reference Signal

SS Synchronization Signal

SSB Synchronization Signal Block

SSS Secondary Synchronization Signal

SMT Surface-Mount assembly

SUL Supplementary Uplink

SU-MIMO Single-User MIMO

TAB Transceiver-Array Boundary

TACS Total Access Communication System

TCI Transmission configuration indication

TCP Transmission Control Protocol

TC-RNTI Temporary C-RNTI

TDD Time-Division Duplex

TDM Time Division Multiplexing

TDMA Time-Division Multiple Access

TD-SCDMA Time-Division-Synchronous Code-Division Multiple Access

TIA Telecommunication Industry Association

TR Technical Report

TRP Total Radiated Power

TS Technical Specification

TRS Tracking Reference Signal

TSDSI Telecommunications Standards Development Society, India

TSG Technical Specification Group

TTA Telecommunications Technology Association

TTC Telecommunications Technology Committee

TTI Transmission Time Interval

TX Transmitter

UCI Uplink Control Information

UDM Unified data management

UE User Equipment, the 3GPP name for the mobile terminal

UEM Unwanted Emissions Mask

UL Uplink

UMTS Universal Mobile Telecommunications System

UPF User plane function

URLLC Ultra-reliable low-latency communication

UTRA Universal Terrestrial Radio Access

V2X Vehicular-to-Anything

V2V Vehicular-to-Vehicular

VCO Voltage-Controlled Oscillator

WARC World Administrative Radio Congress

WCDMA Wideband Code-Division Multiple Access

WG Working Group

WiMAX Worldwide Interoperability for Microwave Access

WP5D Working Party 5D

WRC World Radiocommunication Conference

Xn The interface between gNBs

ZC Zadoff-Chu

ZP-CSI-RS Zero-power CSI-RS