B.2.5 Preliminary MU of FR2 3D-MPAC system

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

This clause defines the Preliminary measurement uncertainty (MU) budget for FR2 3D-MPAC system, as shown in Table A.2.5-1.

Table B.2.5-1: Preliminary measurement uncertainty budget for FR2 3D-MPAC systemUID	Description of uncertainty contribution	Example value (26.5GHz≤f≤29.5GHz)	Example value (37GHz ≤f≤40GHz)	Distribution of the probability	Std Uncertainty (26.5GHz≤f≤29.5GHz) [dB]	Std Uncertainty (37GHz ≤f≤40GHz) [dB]
Stage 2: DUT measurement
1	Mismatch for measurement process	[1.30]	TBD	[Actual]	[1.30]	TBD
2	Measure distance uncertainty	[0.15]	TBD	[Rectangular]	[0.09]	TBD
3	Quality of quiet zone	[1.20]	TBD	[Actual]	[1.20]	TBD
4	Base Station simulator	TBD	TBD	[Normal]	TBD	TBD
5	Channel Emulator -absolute value -stability -linearity	TBD	TBD	Normal	TBD	TBD
6	Amplifier uncertainties	[2.10]	TBD	[Normal]	[1.05]	TBD
7	Random uncertainty	[0.50]	TBD	[Normal]	[0.25]	TBD
8	Throughput measurement: output level step resolution	[0.25]	TBD	Rectangular	[0.14]	TBD
9	DUT sensitivity drift	TBD	TBD	Rectangular	TBD	TBD
10	Signal flatness	TBD	TBD	Normal	TBD	TBD
Stage 1: Calibration measurement
11	Mismatch for calibration process – loopback cable path – system input path – reference antenna	[0.00]	TBD	U-Shaped	[0.00]	TBD
12	Reference antenna positioning misalignment	[0.00]	TBD	[Rectangular]	[0.00]	TBD
13	Quality of quiet zone	[0.60]	TBD	[Actual]	[0.60]	TBD
14	Total uncertainty of the Network Analyzer	[0.73]	TBD	[Normal]	[0.37]	TBD
15	Uncertainty of an absolute gain of the calibration antenna	[0.60]	TBD	[Normal]	[0.30]	TBD
16	Offset of the Phase Center of the Reference Antenna	[0.47]	TBD	[Rectangular]	[0.27]	TBD
Total Expanded Uncertainty, U, with 95% Confidence Interval					TBD	TBD