3 Definitions of terms, symbols and abbreviations

38.1513GPPNRRelease 17TSUser Equipment (UE) Multiple Input Multiple Output (MIMO) Over-the-Air (OTA) performance requirements

3.1 Terms

For the purposes of the present document, the terms given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

PSP (PAS Similarity Percentage): The similarity of the PAS produced by the OTA system and the reference PAS, which is presented by the Total Variation Distance (TVD) of power angular spectrum (PAS). PSP is defined as (1-TVD)*100%. PSP=100% denotes full similarity and PSP=0% denotes full dissimilarity.

3.2 Symbols

For the purposes of the present document, the following symbols apply:

Symbol format (EW)

<symbol> <Explanation>

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

AOA Azimuth angle Of Arrival

AOD Azimuth angle Of Departure

BS Base Station

CDL Clustered Delay Line

DML Data Mode Landscape

DMP Data Mode Portrait

DMSU Data Mode Screen Up

EUT Equipment Under Test

FR1 Frequency Range 1

FR2 Frequency Range 2

FS Free Space

MASC MIMO Average Spherical Coverage

MIMO Multiple Input Multiple Output

MPAC Multi-Probe Anechoic Chamber

NR New Radio

NSA Non-Standalone, a mode of operation where operation of an other radio is assisted with an other radio

OTA Over The Air

PAS Power Angular Spectrum

PDP Power Delay Profile

PSP PAS Similarity Percentage

TRMS Total Radiated Multi-antenna Sensitivity

UE User Equipment

UMa Urban Macro

UMi Urban Micro

XPR Cross-Polarization Ratio

ZOA Zenith angle Of Arrival

ZOD Zenith angle Of Departure

ZSA Zenith angle Spread of Arrival

ZSD Zenith angle Spread of Departure