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TECHNICAL REPORT
Universal Mobile Telecommunications System (UMTS);
LTE;
Universal Terrestrial Radio Access (UTRA) and
Evolved Universal Terrestrial Radio Access (E-UTRA);
Verification of radiated multi-antenna reception
performance of User Equipment (UE)
(3GPP TR 37.977 version 14.6.0 Release 14)
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3GPP TR 37.977 version 14.6.0 Release 14 1 ETSI TR 137 977 V14.6.0 (2018-07)
Reference
RTR/TSGR-0437977ve60
Keywords
LTE,UMTS
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3GPP TR 37.977 version 14.6.0 Release 14 2 ETSI TR 137 977 V14.6.0 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
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Foreword
This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
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Modal verbs terminology
In the present document "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be
interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
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3GPP TR 37.977 version 14.6.0 Release 14 3 ETSI TR 137 977 V14.6.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 8
1 Scope . 9
2 References . 9
3 Definitions, symbols and abbreviations . 10
3.1 Definitions . 10
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Introduction . 11
4.1 Background . 11
4.2 Work item objective . 11
4.3 High level requirements . 12
5 Performance metrics . 13
5.1 Figure of Merits . 13
5.1.1 Definition of MIMO throughput . 13
5.1.2 Definition of Signal-to-Interference Ratio (SIR) . 13
5.1.2.1 SIR Control for Multi-Probe Anechoic Chamber Methodology . 14
5.1.2.2 SIR Control for the reverberation chamber method . 15
5.1.2.3 SIR Control for the reverberation chamber plus channel emulator method . 16
5.1.2.4 SIR Control for the two-stage methodology . 17
5.2 Averaging of throughput curves . 19
5.2.1 Average of power levels . 19
6 Candidate measurement methodologies . 20
6.1 Void . 20
6.2 Void . 20
6.3 Downlink measurement methodologies . 20
6.3.1 Methodologies based on Anechoic RF Chamber . 20
6.3.1.1 Candidate Solution 1 . 20
6.3.1.1.1 Concept and configuration. 21
6.3.1.1.2 Scalability of the methodology . 22
6.3.1.1.3 Test conditions . 23
6.3.1.2 Void. 24
6.3.1.3 Candidate solution 3 . 24
6.3.1.3.1 Concept and configuration. 24
6.3.1.3.2 Test conditions . 27
6.3.1.3.3 Overview of calibration procedures specific to the RTS method . 27
6.3.1.4 Candidate solution 4 . 28
6.3.1.4.1 Concept and configuration. 28
6.3.1.4.2 Decomposition approach . 29
6.3.1.4.3 Conducted test . 30
6.3.1.4.4 Radiated test . 30
6.3.1.4.5 Possible extensions of the decomposition method . 31
6.3.1.5 Candidate solution 5 . 31
6.3.1.5.1 Concept and configuration. 32
6.3.1.5.2 Test conditions . 34
6.3.2 Methodologies based on Reverberation Chamber . 35
6.3.2.1 Candidate solution 1 . 35
6.3.2.1.1 Concept and configuration. 36
6.3.2.1.2 Test conditions . 37
6.3.2.2 Candidate solution 2 . 38
6.3.2.2.1 Concept and configuration. 38
ETSI
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3GPP TR 37.977 version 14.6.0 Release 14 4 ETSI TR 137 977 V14.6.0 (2018-07)
6.3.2.2.2 Test conditions . 39
7 Base Station (BS) configuration . 40
7.1 eNodeB emulator settings . 40
8 Channel Models . 42
8.1 Introduction . 42
8.2 Channel Model(s) to be validated . 42
8.3 Verification of Channel Model implementations . 44
8.3.1 Measurement instruments and setup . 44
8.3.1.1 Vector Network Analyzer (VNA) setup . 44
8.3.1.2 Spectrum Analyzer (SA) setup . 45
8.3.2 Validation measurements . 45
8.3.2.1 Power Delay Profile (PDP) . 45
8.3.2.2 Doppler/Temporal correlation . 47
8.3.2.3 Spatial correlation . 49
8.3.2.4 Cross-polarization . 52
8.3.3 Reporting . 53
8.4 Channel Model validation results . 56
8.4.1 Scope . 56
8.4.2 Power Delay Profile (PDP) . 56
8.4.3. Doppler / Temporal Correlation. 62
8.4.4 Spatial correlation . 66
8.4.5 Cross polarization . 68
8.4.6 Summary . 69
8.5 Channel Model emulation of the Base Station antenna pattern configuration . 70
9 Reference antennas and devices testing . 70
9.1 Reference antennas design . 70
9.2 Reference devices . 70
9.3 Description of tests with reference antennas and devices . 70
9.3.1 The Absolute Data Throughput Comparison Framework . 70
9.3.1.1 Introduction . 70
9.3.1.2 Antenna pattern data format . 71
9.3.1.3 Emulation of antenna pattern rotation . 72
9.3.1.4 Absolute Data Throughput measurement enabler . 74
9.3.1.5 Output data format . 75
9.3.1.6 Application of the framework and scenarios for comparison . 80
9.3.1.7 Proof of concept . 82
9.3.1.7.1 The first scenario, anechoic based . 82
9.3.1.7.2 The second scenario, reverberation chamber based . 84
9.3.1.7.3 The third scenario, reverberation chamber and channel emulator based . 85
9.4 Device positioning . 87
9.4.1 Handheld UE – Browsing mode . 87
9.4.1.1 MPAC Positioning Guidelines . 87
9.4.2 Handheld UE – Speech mode . 87
9.4.2.1 MPAC Positioning Guidelines . 87
9.4.3 Laptop Mounted Equipment (LME) . 87
9.4.3.1 MPAC Positioning Guidelines . 87
9.4.4 Laptop Eembedded Equipment (LEE) . 88
9.4.4.1 MPAC Positioning Guidelines . 88
10 Measurement results from testing campaigns . 88
10.1 Introduction . 88
10.2 CTIA test campaign. 88
10.2.1 Description of the test plan . 88
10.2.2 Anechoic chamber method with multiprobe configuration . 88
10.2.3 Reverberation chamber method using NIST channel model and using channel emulator with short
delay spread low correlation channel model . 94
10.2.4 RTS method results . 102
10.3 3GPP harmonization test campaign . 106
10.3.1 Description of the test plan . 106
10.3.2 Devices under test . 107
ETSI
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3GPP TR 37.977 version 14.6.0 Release 14 5 ETSI TR 137 977 V14.6.0 (2018-07)
10.3.3 Measurement uncertainty bound for harmonization . 108
10.3.4 Summary of results . 109
10.3.5 Harmonization outcome . 113
10.3.5a Harmonization outcome with device set 3 . 114
10.3.5b Harmonization outcome with device set 4 . 115
10.4 Lab alignment procedures for performance labs . 116
10.4.1 General . 116
10.4.2 Channel model validation data. 116
10.4.3 Calibration with a specific set of reference dipoles . 117
10.4.4 Performance alignment measurements . 117
10.4.5 Acceptance criteria . 117
11 Void . 118
12 MIMO OTA test procedures . 118
12.1 Anechoic chamber method with multiprobe configuration test procedure . 118
12.1.1 Base Station configuration . 118
12.1.2 Channel Models . 118
12.1.3 Device positioning and environmental conditions . 118
12.1.4 System Description . 118
12.1.4.1 Solution Overview . 118
12.1.4.2 Configuration . 118
12.1.4.3 Calibration . 118
12.1.5 Figure of Merit . 118
12.1.6 Test procedure . 119
12.1.6.1 Initial conditions . 119
12.1.6.2 Test procedure . 119
12.1.7 Measurement Uncertainty budget . 119
12.2 Reverberation chamber test procedure . 120
12.2.1 Base Station configuration . 120
12.2.2 Channel Models . 120
12.2.3 Device positioning and environmental conditions . 120
12.2.4 System Description . 120
12.2.4.1 Solution Overview . 120
12.2.4.2 Configuration . 120
12.2.4.3 Calibration . 120
12.2.5 Figure of Merit . 120
12.2.6 Test procedure . 120
12.2.6.1 Initial conditions . 120
12.2.6.2 Test procedure . 121
12.2.7 Measurement Uncertainty budget . 121
12.3 RTS method test procedure . 121
12.3.1 Base Station configuration . 121
12.3.2 Channel Models . 121
12.3.3 Device positioning and environmental conditions . 121
12.3.4 System Description . 121
12.3.4.1 Solution Overview . 121
12.3.4.2 Configuration . 122
12.3.4.3 Calibration .
...