Content for TR 38.884 Word version: 18.2.0
4 General
5 UE RF testing methodology enhancements
6 UE RRM testing methodology enhancements
7 UE demodulation testing methodology enhancements
8 Test time reduction
9 Propagation conditions
A Environment conditions
B Measurement uncertainty
$ Change history
4 General p. 12
5 UE RF testing methodology enhancements p. 13
5.1 High DL power and low UL power p. 13
5.1.1 General p. 13
5.1.2 Beam management sensitivity study of NF based solutions p. 14
5.1.3 Manufacturer declarations p. 17
5.1.4 Permitted Methodologies: CFFNF, CFFDNF and CFFdeltaNF p. 24
5.1.4.1 Asymptotic Expansion Approach for CFFNF p. 26
5.1.4.2 Test Procedures for CFFDNF, CFFNF and CFFdeltaNF p. 28
5.1.4.3 Simulation Assumptions p. 34
5.1.4.4 Simulation results for CFFDNF p. 35
5.1.4.5 Simulation results for CFFNF (using Black & White-Box Approach) p. 52
5.1.4.6 Simulation results for CFFNF (using Black-Box Approach) p. 54
5.1.4.7 Simulation results for sensitivity of CFFNF to relative measurement uncertainties p. 58
5.1.4.8 Simulation results for CFFdeltaNF p. 59
5.1.4.9 Simulation results for Influence of Noise p. 75
5.1.4.10 Simulation Results for offset error MU p. 78
5.1.5 Applicability of NF methodologies p. 80
5.1.6 Improvement of permitted methods p. 83
5.2 Polarization basis mismatch between the TE and DUT p. 84
5.2.1 General p. 84
5.2.2 Enhanced test method for EIRP measurement p. 85
5.2.2.1 TPMI method p. 85
5.2.2.2 Applicability of TPMI side condition method p. 85
5.2.2.3 Alternative test method p. 86
5.2.3 Enhanced test method for UL demodulation measurement p. 86
5.2.3.1 Test equipment Zero-forcing MIMO receiver p. 86
5.2.3.1.1 Method 1 p. 86
5.2.3.1.1.1 Method 1 description p. 86
5.2.3.1.1.2 Method 1 MIMO Equalization p. 88
5.2.3.1.1.3 Method 1 Maximum Ratio Combining p. 88
5.2.3.1.1.4 Method 1 Layer processing p. 89
5.2.3.1.2 Method 2 p. 89
5.2.3.1.2.1 Method 2 description p. 89
5.2.3.1.2.2 Method 2 MIMO Equalization p. 90
5.2.3.1.2.3 Method 2 Maximal Ratio Combining p. 91
5.2.3.1.2.4 Method 2 EVM equalizer flatness p. 92
5.2.3.1.2.5 Method 2 channel invertibility considerations p. 92
5.2.3.1.2.6 Method 2 DC (LO) cancellation p. 93
5.2.3.1.3 Analysis of Method 1 & 2 p. 94
5.3 Inter-band (FR2+FR2) CA p. 96
5.3.1 General p. 96
5.3.2 Impact of multiple test antennae p. 97
5.3.2.1 PSD imbalance with DL signals from test equipment p. 97
5.3.2.1.1 DL PSD towards UE supporting independent beam management (IBM) p. 97
5.3.2.1.2 DL PSD towards UE supporting common beam management (CBM) p. 98
5.3.2.2 Impact of off-focus test system antennae p. 100
5.3.2.2.1 Quality of quiet zone (QoQZ) p. 100
5.3.2.2.2 Rx beam profiles with an independent beam management (IBM) UE p. 106
5.3.2.2.3 Propensity to trigger incorrect beam in CBM UE p. 107
5.3.2.2.4 Spherical coverage measurement simulation with common beam management (CBM) UE p. 108
5.3.2.3 Summary on applicability of offset antenna test system p. 110
5.3.2.4 Points to design the FR2 OTA test system with offset test antennae p. 110
5.3.3 Inter-band testing ramifications p. 111
5.3.3.1 Single antenna p. 112
5.3.3.2 Multiple antennae p. 112
5.4 Extreme temperature conditions p. 112
5.4.1 ETC test system p. 112
5.4.2 Calibration procedure p. 113
5.4.3 Test procedure p. 113
5.4.4 Temperature tolerance limit of ETC test system p. 113
5.5 Extension of frequency applicability for band n262 p. 114
5.6 Extension of frequency applicability for FR2-2 p. 114
5.6.1 Permitted test methods p. 114
5.6.2 Enhanced test methods p. 114
6 UE RRM testing methodology enhancements p. 116
6.1 Extension of frequency applicability for band n262 p. 116
6.2 Extension of frequency applicability for FR2-2 p. 116
7 UE demodulation testing methodology enhancements p. 118
7.1 Extension of frequency applicability for band n262 p. 118
7.2 Extension of frequency applicability for FR2-2 p. 119
8 Test time reduction p. 123
8.1 General p. 123
8.2 New measurement grid p. 123
8.2.1 New measurement grids based on 4x2 antenna pattern assumption p. 123
8.2.1.1 Beam Peak Search Measurement Grid p. 124
8.2.1.2 Spherical Coverage Measurement Grid p. 126
8.2.1.3 TRP Measurement Grid p. 127
8.2.2 Applicability of the 4x2 measurement grids p. 130
8.3 RSRP(B) based RX beam peak search p. 131
8.3.1 Test procedure p. 131
8.3.2 RSRP(B) accuracy p. 131
8.4 Single link polarization measurement p. 131
8.5 Other methods p. 133
9 Propagation conditions p. 137
A Environment conditions p. 139
A.1 Operating voltage p. 139
A.2 Temperature p. 139
B Measurement uncertainty p. 140
B.1 Measurement uncertainty budget for UE RF testing methodology p. 140
B.1.1 High DL power and low UL power p. 140
B.1.1.1 Uncertainty Contributions p. 140
B.1.1.2 Uncertainty Contributions descriptions p. 143
B.1.1.2.1 DUT antenna location estimation p. 143
B.1.1.2.2 Probe antenna pattern p. 143
B.1.1.2.3 EIRP measurement error in NF p. 144
B.1.1.2.4 TRP measurement error in NF p. 144
B.1.1.2.5 Near-field interaction between probe antenna and DUT antenna p. 144
B.1.1.2.6 Influence of power measurement uncertainty p. 144
B.1.1.2.7 Influence of noise p. 144
B.1.1.3 Uncertainty assessment p. 144
B.1.2 Polarization basis mismatch between the TE and DUT p. 145
B.1.3 Inter-band (FR2+FR2) CA p. 145
B.1.4 Test system for ETC p. 145
B.1.5 Measurement uncertainty budget for FR2-2 test methods p. 146
$ Change history p. 147
