Content for TR 38.870 Word version: 18.2.0
A UE coordinate system
B Estimation of Measurement uncertainty
C Environmental requirements
D Phantom Definition
E Harmonization outcome of Alternative method and Reference method
F Lab alignment outcome of Reference method
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A UE coordinate system p. 67
B Estimation of Measurement uncertainty p. 69
B.1 General p. 69
B.2 MU contribution descriptions for Anechoic Chamber method p. 70
B.2.1 Mismatch uncertainty p. 70
B.2.1.1 Mismatch uncertainty between measurement receiver / communication tester and the measurement antenna p. 70
B.2.1.1.1 Mismatch uncertainty through the connector between two elements p. 70
B.2.1.1.2 Mismatch uncertainty due to the interaction of several elements p. 71
B.2.1.1.3 Total combined mismatch uncertainty p. 72
B.2.1.2 Mismatch uncertainty of the RF relay p. 72
B.2.1.2.1 First part: RF Relay switched on the co-polarized signal p. 73
B.2.1.2.1.1 The mismatch through the connector between two elements p. 73
B.2.1.2.1.2 Mismatch due to the interaction between two elements or more p. 73
B.2.1.2.2 Second part: RF relay switched on the cross-polarized signal p. 74
B.2.1.2.2.1 The mismatch through the connector between two elements p. 74
B.2.1.2.2.2 Mismatch due to the interaction between two elements or more p. 74
B.2.1.2.3 Total combined mismatch uncertainty p. 75
B.2.2 Insertion loss p. 75
B.2.2.1 Insertion loss of the measurement antenna cable p. 75
B.2.2.2 Insertion loss of the measurement antenna attenuator (if used) p. 75
B.2.2.3 Insertion loss of the RF relays (if used) p. 75
B.2.2.4 Insertion loss: calibration antenna feed cable p. 75
B.2.2.5 Insertion loss: calibration antenna attenuator (if used) p. 75
B.2.3 Influence of the antenna cable p. 76
B.2.4 Measurement receiver: uncertainty of the absolute level p. 76
B.2.5 Communication tester: uncertainty of the absolute level p. 76
B.2.6 Sensitivity measurement: output level step resolution p. 76
B.2.7 Measurement distance p. 76
B.2.7.1 Offset of phase centre from axis(es) of rotation p. 77
B.2.7.1.1 Offset of DUT phase centre from axis(es) of rotation p. 77
B.2.7.1.2 Offset of calibration antenna phase centre from axis(es) of rotation p. 77
B.2.7.2 Mutual coupling p. 77
B.2.7.3 Phase curvature p. 77
B.2.8 Quality of quiet zone p. 78
B.2.9 DUT Tx-power drift p. 78
B.2.10 DUT sensitivity drift p. 79
B.2.11 Uncertainty related to the use of phantoms p. 79
B.2.11.1 Uncertainty from using different types of SAM phantom p. 79
B.2.11.2 Simulated tissue liquid uncertainty p. 79
B.2.11.3 Uncertainty of dielectric properties and shape of the hand phantom p. 79
B.2.11.4 Uncertainty from using different types of Laptop Ground Plane phantom p. 81
B.2.11.5 Positioning Uncertainty from using Phantoms p. 81
B.2.11.6 Uncertainty of dielectric properties and shape of the forearm phantom p. 81
B.2.12 Coarse sampling grid p. 82
B.2.13 Random uncertainty p. 82
B.2.14 Frequency response p. 83
B.2.15 Uncertainty of network analyser p. 83
B.2.16 Uncertainty of the gain/efficiency of the calibration antenna p. 83
B.3 MU contribution descriptions for Alternative method p. 83
B.3.1 Additional Power Loss in EUT Chassis p. 83
B.3.3 Quality of Spatial Uniformity p. 84
B.3.4 Sensitivity measurement: output level step resolution p. 84
B.4 MU Assessment for TRP p. 84
B.4.1 MU Assessment for TRP in Anechoic Chamber p. 84
B.4.2 MU Assessment for TRP in Reverberation Chamber p. 88
B.5 MU Assessment for TRS p. 90
C Environmental requirements p. 99
D Phantom Definition p. 100
D.1 Head Phantom p. 100
D.2 Hand Phantom p. 100
D.2.1 PDA Grip Hand p. 100
D.2.2 Wide Grip Hand p. 100
D.3 Forearm Phantom p. 101
E Harmonization outcome of Alternative method and Reference method p. 102
E.1 General p. 102
E.2 Rel-18 Harmonization activity p. 102
E.2.1 Framework and workplan p. 102
E.2.2 Measurement results p. 103
E.2.3 Pass/fail limit p. 107
E.2.4 Conclusions p. 108
F Lab alignment outcome of Reference method p. 109
F.1 General p. 109
F.2 Rel-17 lab alignment campaign (Browsing mode) p. 109
F.2.1 Framework and workplan p. 109
F.2.2 Measurement results p. 111
F.2.3 Pass/fail limit p. 112
F.2.4 Conclusions p. 112
F.3 Rel-18 lab alignment (Talk mode) p. 112
F.3.1 Framework and workplan p. 112
F.3.2 Measurement results p. 114
F.3.3 Pass/fail limit p. 114
F.3.4 Conclusions p. 115
$ Change history p. 116
