ETSI TS 137 105 V15.21.0 (2025-10)

Universal Mobile Telecommunications System (UMTS); LTE; 5G; Active Antenna System (AAS) Base Station (BS) transmission and reception (3GPP TS 37.105 version 15.21.0 Release 15)

RTS/TSGR-0437105vfl0

General Information

• Status: Not Published
• Technical Committee: 3GPP RAN 4 - Specification for radio performance
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 10-Oct-2025

Standards Content (Sample)

TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
5G;
Active Antenna System (AAS) Base Station (BS)
transmission and reception
(3GPP TS 37.105 version 15.21.0 Release 15)

3GPP TS 37.105 version 15.21.0 Release 15 1 ETSI TS 137 105 V15.21.0 (2025-10)

Reference
RTS/TSGR-0437105vfl0
Keywords
5G,LTE,UMTS
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ETSI
3GPP TS 37.105 version 15.21.0 Release 15 2 ETSI TS 137 105 V15.21.0 (2025-10)
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ETSI
3GPP TS 37.105 version 15.21.0 Release 15 3 ETSI TS 137 105 V15.21.0 (2025-10)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 12
1 Scope . 13
2 References . 13
3 Definitions, symbols and abbreviations . 15
3.1 Definitions . 15
3.2 Symbols . 19
3.3 Abbreviations . 20
4 General . 21
4.1 Relationship between the AAS BS specification and non-AAS BS single RAT & MSR specifications . 21
4.2 Relationship between minimum requirements and test requirements . 22
4.3 Conducted and radiated requirement reference points . 22
4.4 Base station classes for AAS BS . 23
4.5 Regional requirements . 24
4.6 Operating Bands and Band Categories . 26
4.7 Channel arrangements . 26
4.8 Requirements for contiguous and non-contiguous spectrum . 26
4.9 Requirements for AAS BS capable of operation in multiple operating bands . 26
4.10 OTA Co-location with other base stations . 27
5 Applicability of Requirements . 28
5.1 General . 28
5.2 Band category 1 (BC1) and band category 2 (BC2) . 29
5.3 Band category 3 (BC3) . 32
6 Conducted transmitter characteristics . 34
6.1 General . 34
6.2 Base station output power . 35
6.2.1 General . 35
6.2.2 Maximum output power . 35
6.2.2.1 General . 35
6.2.2.2 Minimum requirement for MSR operation . 36
6.2.2.2.1 General . 36
6.2.2.2.2 Additional requirements (regional). 36
6.2.2.3 Minimum requirement for single RAT UTRA operation . 36
6.2.2.4 Minimum requirement for single RAT E-UTRA operation . 36
6.2.2.4.1 General . 36
6.2.2.4.2 Additional requirements (regional). 36
6.2.3 UTRA FDD primary CPICH power . 36
6.2.3.1 General . 36
6.2.3.2 Minimum requirement for MSR operation . 36
6.2.3.3 Minimum requirement for single RAT UTRA operation . 36
6.2.3.4 Minimum requirement for single RAT E-UTRA operation . 37
6.2.4 UTRA TDD primary CCPCH power . 37
6.2.4.1 General . 37
6.2.4.2 Minimum requirement for MSR operation . 37
6.2.4.3 Minimum requirement for single RAT UTRA operation . 37
6.2.4.4 Minimum requirement for single RAT E-UTRA operation . 38
6.2.5 UTRA FDD additional CPICH power for MIMO mode . 38
6.2.5.1 General . 38
6.2.5.2 Minimum requirement for MSR operation . 38
6.2.5.3 Minimum requirement for single RAT UTRA operation . 39
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3GPP TS 37.105 version 15.21.0 Release 15 4 ETSI TS 137 105 V15.21.0 (2025-10)
6.2.5.4 Minimum requirement for single RAT E-UTRA operation . 39
6.2.6 E-UTRA DL RS power . 39
6.2.6.1 General . 39
6.2.6.2 Minimum requirement for MSR operation . 40
6.2.6.3 Minimum requirement for single RAT UTRA operation . 40
6.2.6.4 Minimum requirement for single RAT E-UTRA operation . 40
6.3 Output power dynamics . 40
6.3.1 General . 40
6.3.2 UTRA Inner loop power control in the downlink . 40
6.3.2.1 General . 40
6.3.2.2 Minimum requirement for MSR operation . 40
6.3.2.3 Minimum requirement for single RAT UTRA operation . 40
6.3.2.4 Minimum requirement for single RAT E-UTRA operation . 41
6.3.3 Power control dynamic range . 41
6.3.3.1 General . 41
6.3.3.2 Minimum requirement for MSR operation . 41
6.3.3.3 Minimum requirement for single RAT UTRA operation . 41
6.3.3.4 Minimum requirement for single RAT E-UTRA operation . 42
6.3.4 Total power dynamic range . 42
6.3.4.1 General . 42
6.3.4.2 Minimum requirement for MSR operation . 42
6.3.4.3 Minimum requirement for single RAT UTRA operation . 42
6.3.4.4 Minimum requirement for single RAT E-UTRA operation . 42
6.3.5 IPDL time mask . 42
6.3.5.1 General . 42
6.3.5.2 Minimum requirement for MSR operation . 43
6.3.5.3 Minimum requirement for single RAT UTRA operation . 43
6.3.5.4 Minimum requirement for single RAT E-UTRA operation . 43
6.3.6 RE Power control dynamic range . 43
6.3.6.1 General . 43
6.3.6.2 Minimum requirement for MSR operation . 43
6.3.6.3 Minimum requirement for single RAT UTRA operation . 43
6.3.6.4 Minimum requirement for single RAT E-UTRA operation . 43
6.4 Transmit ON/OFF power . 43
6.4.1 General . 43
6.4.2 Transmitter OFF power . 44
6.4.2.1 General . 44
6.4.2.2 Minimum requirement for MSR operation . 44
6.4.2.3 Minimum requirement for single RAT UTRA operation . 44
6.4.2.4 Minimum requirement for single RAT E-UTRA operation . 44
6.4.3 Transmitter transient period . 44
6.4.3.1 General . 44
6.4.3.2 Minimum requirement for MSR operation . 45
6.4.3.3 Minimum requirement for single RAT UTRA operation . 45
6.4.3.4 Minimum requirement for single RAT E-UTRA operation . 45
6.5 Transmitted signal quality . 45
6.5.1 General . 45
6.5.2 Frequency Error . 45
6.5.2.1 General . 45
6.5.2.2 Minimum requirement for MSR operation . 45
6.5.2.3 Minimum requirement for single RAT UTRA operation . 45
6.5.2.4 Minimum requirement for single RAT E-UTRA operation . 46
6.5.3 Time alignment error . 46
6.5.3.1 General . 46
6.5.3.2 Minimum requirement for MSR operation . 46
6.5.3.3 Minimum requirement for single RAT UTRA operation . 46
6.5.3.4 Minimum requirement for single RAT E-UTRA operation . 46
6.5.4 Modulation quality . 47
6.5.4.1 General . 47
6.5.4.2 Minimum requirement for MSR operation . 47
6.5.4.3 Minimum requirement for single RAT UTRA operation . 47
6.5.4.4 Minimum requirement for single RAT E-UTRA operation . 48
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3GPP TS 37.105 version 15.21.0 Release 15 5 ETSI TS 137 105 V15.21.0 (2025-10)
6.5.5 Transmit pulse shape filter . 48
6.5.5.1 General . 48
6.5.5.2 Void. 48
6.5.5.3 Void. 48
6.5.5.4 Void. 48
6.6 Unwanted Emissions . 48
6.6.1 General . 48
6.6.2 Occupied bandwidth . 49
6.6.2.1 General . 49
6.6.2.2 Minimum requirement for MSR operation . 49
6.6.2.3 Minimum requirement for single RAT UTRA operation . 49
6.6.2.4 Minimum requirement for single RAT E-UTRA operation . 49
6.6.3 Adjacent Channel Leakage power Ratio . 49
6.6.3.1 General . 49
6.6.3.2 Minimum requirement for MSR operation . 50
6.6.3.3 Minimum requirement for single RAT UTRA operation . 50
6.6.3.4 Minimum requirement for single RAT E-UTRA operation . 50
6.6.4 Spectrum emission mask . 51
6.6.4.1 General . 51
6.6.4.2 Minimum requirement for MSR operation . 51
6.6.4.3 Minimum requirement for single RAT UTRA operation . 51
6.6.4.3.1 General . 51
6.6.4.3.2 Basic limits for single RAT UTRA FDD operation . 51
6.6.4.3.3 Basic limits for single RAT UTRA TDD 1,28Mcps operation . 56
6.6.4.4 Minimum requirement for single RAT E-UTRA operation . 58
6.6.5 Operating band unwanted emission . 59
6.6.5.1 General . 59
6.6.5.2 Minimum requirement for MSR operation . 59
6.6.5.2.1 General . 59
6.6.5.2.2 Basic limits for Band Categories 1 and 3 . 59
6.6.5.2.3 Basic limit for Band Category 2 . 65
6.6.5.2.4 Additional requirements . 72
6.6.5.3 Minimum requirement for single RAT UTRA operation . 72
6.6.5.4 Minimum requirement for single RAT E-UTRA operation . 72
6.6.5.4.1 General . 72
6.6.5.4.2 Basic limits for Wide Area BS (Category A) . 74
6.6.5.4.3 Basic limits for Wide Area BS (Category B) . 77
6.6.5.4.3.1 General . 77
6.6.5.4.3.2 Category B requirements (Option 1) . 77
6.6.5.4.3.3 Category B (Option 2) . 81
6.6.5.4.4 Basic limits for Local Area BS (Category A and B) . 83
6.6.5.4.5 Basic limits for Medium Range BS (Category A and B) . 84
6.6.5.4.7 Additional requirements . 86
6.6.6 Spurious emission . 86
6.6.6.1 General . 86
6.6.6.2 Minimum requirement for MSR operation . 86
6.6.6.3 Minimum requirement for single RAT UTRA operation . 87
6.6.6.4 Minimum requirement for single RAT E-UTRA operation . 87
6.7 Transmitter intermodulation . 87
6.7.1 General . 87
6.7.2 Minimum requirement for MSR operation . 88
6.7.2.1 General co-location minimum requirement. 88
6.7.2.2 Additional co-location minimum requirement (BC1 and BC2) . 89
6.7.2.3 Additional co-location minimum requirement (BC3) . 89
6.7.2.4 Additional co-location minimum requirements. 90
6.7.2.5 Intra-system minimum requirement . 90
6.7.3 Minimum requirement for single RAT UTRA operation . 90
6.7.3.1 General co-location minimum requirement for FDD UTRA . 90
6.7.3.2 General co-location minimum requirement for 1,28 Mcps TDD UTRA . 91
6.7.3.3 Intra-system minimum requirement . 92
6.7.4 Minimum requirement for single RAT E-UTRA operation . 92
6.7.4.1 General co-location minimum requirement. 92
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6.7.4.2 Void. 93
6.7.4.3 Intra-system minimum requirement . 93
7 Conducted receiver characteristics . 94
7.1 General . 94
7.2 Reference sensitivity level . 94
7.2.1 General . 94
7.2.2 Minimum requirement for MSR operation . 94
7.2.3 Minimum requirement for single RAT UTRA operation . 95
7.2.4 Minimum requirement for single RAT E-UTRA operation . 95
7.3 Dynamic range . 95
7.3.1 General . 95
7.3.2 Minimum requirement for MSR operation . 95
7.3.3 Minimum requirement for single RAT UTRA operation . 95
7.3.4 Minimum requirement for single RAT E-UTRA operation . 96
7.4 Adjacent channel selectivity, general blocking, and narrowband blocking . 96
7.4.1 General . 96
7.4.2 Minimum requirement for MSR operation . 96
7.4.2.1 General minimum requirement . 96
7.4.2.2 General narrowband blocking minimum requirement . 97
7.4.2.3 Additional BC3 blocking minimum requirement . 98
7.4.3 Minimum requirement for single RAT UTRA operation . 99
7.4.4 Minimum requirement for single RAT E-UTRA operation . 99
7.5 Blocking . 99
7.5.1 General . 99
7.5.2 Minimum requirement for MSR operation . 100
7.5.2.1 General minimum requirement . 100
7.5.2.2 Co-location minimum requirement . 100
7.5.3 Minimum requirement for single RAT UTRA operation . 104
7.5.3.1 General minimum requirement . 104
7.5.3.2 Co-location minimum requirement . 105
7.5.4 Minimum requirement for single RAT E-UTRA operation . 105
7.5.4.1 General minimum requirement . 105
7.5.4.2 Co-location minimum requirement . 110
7.6 Receiver spurious emissions. 110
7.6.1 General . 110
7.6.2 Minimum requirement for MSR operation . 111
7.6.2.1 General minimum requirement . 111
7.6.3 Minimum requirement for single RAT UTRA operation . 111
7.6.4 Minimum requirement for single RAT E-UTRA operation . 112
7.7 Receiver intermodulation . 112
7.7.1 General . 112
7.7.2 Minimum requirement for MSR operation . 112
7.7.2.1 General intermodulation minimum requirement . 112
7.7.2.2 General narrowband intermodulation minimum requirement . 114
7.7.3 Minimum requirement for single RAT UTRA operation . 118
7.7.4 Minimum requirement for single RAT E- UTRA operation . 118
7.8 In-channel selectivity . 118
7.8.1 General . 118
7.8.2 Minimum requirement for MSR operation . 118
7.8.3 Minimum requirement for single RAT UTRA operation . 118
7.8.4 Minimum requirement for single RAT E-UTRA operation . 119
8 Performance requirements . 119
8.1 General . 119
8.1.1 UTRA operation . 119
8.1.2 E-UTRA operation . 120
8.3 Minimum requirements for UTRA operation . 121
8.4 Minimum requirements for E-UTRA operation . 121
9 Radiated transmitter characteristics . 121
9.1 General . 121
9.2 Radiated transmit power . 122
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9.2.1 General . 122
9.2.2 Minimum requirement for MSR operation . 122
9.2.3 Minimum requirement for single RAT UTRA operation . 122
9.2.4 Minimum requirement for single RAT E-UTRA operation . 122
9.3 OTA Base Station output power . 123
9.3.1 General . 123
9.3.2 OTA Maximum output power . 123
9.3.2.1 General . 123
9.3.2.2 Minimum requirement for MSR operation . 123
9.3.2.2.1 General . 123
9.3.2.2.2 Additional requirements (regional). 123
9.3.2.3 Minimum requirement for single RAT UTRA operation . 123
9.3.2.4 Minimum requirement for single RAT E-UTRA operation . 123
9.3.2.4.1 General . 123
9.3.2.4.2 Additional requirements (regional). 123
9.3.3 OTA E-UTRA DL RS power . 124
9.3.3.1 General . 124
9.3.3.2 Minimum requirement for MSR operation .
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