ETSI TS 137 145-2 V14.10.0 (2020-01)

TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Active Antenna System (AAS) Base Station (BS)
conformance testing;
Part 2: radiated conformance testing
(3GPP TS 37.145-2 version 14.10.0 Release 14)

3GPP TS 37.145-2 version 14.10.0 Release 14 1 ETSI TS 137 145-2 V14.10.0 (2020-01)

Reference
RTS/TSGR-0437145-2vea0
Keywords
LTE,UMTS
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ETSI
3GPP TS 37.145-2 version 14.10.0 Release 14 2 ETSI TS 137 145-2 V14.10.0 (2020-01)
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ETSI
3GPP TS 37.145-2 version 14.10.0 Release 14 3 ETSI TS 137 145-2 V14.10.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 10
3.3 Abbreviations . 12
4 General test conditions and declarations . 13
4.1 Measurement uncertainties and test requirements . 13
4.1.1 General . 13
4.1.2 Acceptable uncertainty of Test System . 13
4.1.2.1 General . 13
4.1.2.2 Measurement of transmitter . 13
4.1.2.3 Measurement of receiver . 13
4.1.3 Interpretation of measurement results . 14
4.2 Conducted and radiated requirement reference points . 14
4.3 Base station classes for AAS BS . 15
4.4 Regional requirements . 15
4.5 Operating bands and band categories . 15
4.6 Channel arrangements . 15
4.7 Requirements for AAS BS capable of multi-band operation . 15
4.8 AAS BS configurations . 15
4.8.1 Transmit configurations . 15
4.8.2 Receive configurations . 16
4.8.3 Power supply options . 16
4.8.4 BS with integrated Iuant BS modem . 16
4.9 Capability sets . 17
4.10 Manufacturer declarations . 17
4.11 Test signal configurations for testing . 20
4.11.1 General . 20
4.11.2 Test signal configurations . 21
4.11.2.1 ATCR1: UTRA multicarrier operation . 21
4.11.2.1.1 General . 21
4.11.2.1.2 ATCR1a generation . 21
4.11.2.1.3 ATCR1b generation . 21
4.11.2.1.4 ATCR1 EIRP allocation . 21
4.11.2.2 ANTCR1: UTRA FDD multicarrier non-contiguous operation . 21
4.11.2.2.1 General . 21
4.11.2.2.2 ANTCR1 generation . 21
4.11.2.2.3 ANTCR1 EIRP allocation . 22
4.11.2.3 ATCR2: E-UTRA multicarrier operation . 22
4.11.2.3.1 General . 22
4.11.2.3.2 ATCR2a generation . 22
4.11.2.3.3 ATCR2b generation . 22
4.11.2.3.4 ATCR2 EIRP allocation . 23
4.11.2.4 ANTCR2: E-UTRA multicarrier non-contiguous operation . 23
4.11.2.4.1 General . 23
4.11.2.4.2 ANTCR2 generation . 23
4.11.2.4.3 ANTCR2 EIRP allocation . 24
4.11.2.5 ATCR3: UTRA and E-UTRA multi RAT operation . 24
4.11.2.5.1 General . 24
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4.11.2.5.2 ATCR3a generation . 24
4.11.2.5.3 ATCR3b generation . 24
4.11.2.5.4 ATCR3 EIRP allocation . 25
4.11.2.6 ANTCR3: UTRA and E-UTRA multi RAT non-contiguous operation . 25
4.11.2.6.1 General . 25
4.11.2.6.2 ANTCR3a generation . 25
4.11.2.6.3 ANTCR3 EIRP allocation . 26
4.11.2.7 ATCR4: Single carrier for receiver tests . 26
4.11.2.7.1 ATCR4a generation . 26
4.11.2.7.2 ATCR4b generation . 26
4.11.2.7.3 ATCR4c generation . 26
4.11.2.7.4 ATCR4 EIRP allocation . 26
4.11.2.8 Generation of MB-MSR test configurations . 26
4.11.2.8.1 ATCR5a: MB-MSR test configuration for full carrier allocation . 26
4.11.2.8.2 ATCR5b: MB-MSR test configuration with high PSD per carrier . 27
4.11.2.9 ATCR6: Single carrier for Transmitter tests . 28
4.11.2.9.1 ATCR6a generation . 28
4.11.2.9.2 ATCR6b generation . 28
4.11.2.9.3 ATCR6c generation . 28
4.11.2.9.4 ATCR6 EIRP allocation . 28
4.12 RF channels and test models . 29
4.12.1 RF channels . 29
4.12.2 Test models . 29
4.13 Format and interpretation of tests . 30
4.14 Reference coordinate system . 31
5 Applicability of Requirements . 32
5.1 General . 32
5.2 Test configurations for AAS BS for operating bands where MSR with more than 1 RAT is supported . 33
5.3 Test configurations for multi-carrier capable AAS BS in operating bands where one RAT capability sets
are supported . 33
5.3.1 General . 33
5.3.2 AAS BS supporting one RAT only MSR in the operating band . 33
5.3.3 AAS BS supporting Single-RAT UTRA in the operating band . 34
5.3.4 AAS BS supporting Single-RAT E-UTRA in the operating band . 34
5.4 Test configurations for AAS BS operating bands with multi-band dependencies. 35
5.4.1 AAS BS operating bands with multi-band dependencies supporting MSR operation . 35
5.4.2 AAS BS operating bands with multi-band dependencies supporting Single-RAT only . 35
6 Radiated transmitter characteristics . 36
6.1 General . 36
6.2 Radiated Transmit Power . 36
6.2.1 Definition and applicability . 36
6.2.2 Minimum Requirement . 36
6.2.3 Test purpose . 36
6.2.4 Method of test . 37
6.2.4.1 Initial conditions . 37
6.2.4.2 Procedure . 37
6.2.5 Test Requirement . 37
7 Radiated receiver characteristics . 38
7.1 General . 38
7.2 OTA sensitivity . 38
7.2.1 Definition and applicability . 38
7.2.2 Minimum Requirement . 39
7.2.3 Test Purpose. 39
7.2.4 Method of test . 39
7.2.4.1 Initial conditions . 39
7.2.4.2 Procedure . 39
7.2.5 Test Requirements . 40
7.2.5.1 General . 40
7.2.5.2 UTRA FDD Test Requirements . 40
7.2.5.3 UTRA TDD 1,28Mcp option Test Requirements . 40
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7.2.5.4 E-UTRA Test Requirements . 40
Annex A (normative): Test system characterization . 42
Annex B (normative): Calibration . 43
Annex C (informative): Test tolerances and derivation of test requirements . 44
C.1 General . 44
C.2 Measurement of transmitter (OTA) . 44
C.3 Measurement of receiver (OTA) . 44
Annex D (informative): Test system set-up . 45
D.1 Transmitter . 45
D1.1 Radiated Transmit Power . 45
D.2 Receiver . 46
D.2.1 OTA sensitivity . 46
Annex E (normative): Estimation of Measurement Uncertainty . 47
E.1 General . 47
E.2 Measurement methodology descriptions . 47
E.3 Measurement uncertainty budget format . 47
E.4 Measurement uncertainty budgets . 47
E.5 Measurement error contribution descriptions . 47
Annex F (informative): Change history . 48
History . 49

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Foreword
rd
This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
ETSI
3GPP TS 37.145-2 version 14.10.0 Release 14 7 ETSI TS 137 145-2 V14.10.0 (2020-01)
1 Scope
The present document specifies radiated test methods and conformance requirements for single RAT E-UTRA operation,
single RAT UTRA operation (FDD and TDD) and Multi-Standard Radio (MSR) UTRA and E-UTRA Active Antenna
System (AAS) Base Station (BS). These have been derived from, and are consistent with non-AAS BS specifications in
3GPP TS 25.104 [2], 3GPP TS 25.105 [3], 3GPP TS 36.104 [4] or 3GPP TS 37.104 [5]. The technical specification
3GPP TS 37.145 is in 2 parts, part 3GPP TS 37.145-1 [9] covers conducted requirements and part 3GPP TS 37.145-2
(the present document) covers radiated requirements.
The present document does not establish radiated test methods and conformance requirements for Band 46 operation as
it is not supported by AAS BS. Conducted Band 46 test requirements are still applicable for AAS BS for protection of
and against Band 46 operation, as specified in 3GPP TS 37.145-1 [9].
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 25.104: "Base Station (BS) radio transmission and reception (FDD)".
[3] 3GPP TS 25.105: "Base Station (BS) radio transmission and reception (TDD)".
[4] 3GPP TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS)
radio transmission and reception".
[5] 3GPP TS 37.104: "E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base Station
(BS) radio transmission and reception".
[6] 3GPP TS 37.105: "Active Antenna System (AAS) Base Station (BS) transmission and reception".
[7] 3GPP TR 37.842: "E-UTRA and UTRA; Radio Frequency (RF) requirement background for
Active Antenna System (AAS) Base Station (BS)".
[8] Recommendation ITU-R M.1545: "Measurement uncertainty as it applies to test limits for the
terrestrial component of International Mobile Telecommunications-2000".
[9] 3GPP TS 37.145-1: "Active Antenna System (AAS) Base Station (BS) conformance testing;
Part 1: Conducted conformance testing".
[10] 3GPP TS 25.141: "Base Station (BS) conformance testing (FDD)".
[11] 3GPP TS 25.142: "Base Station (BS) conformance testing (TDD)".
[12] 3GPP TS 36.141: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS)
conformance testing".
[13] 3GPP TS 37.141: "E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base Station
(BS) conformance testing".
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3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following
apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP
TR 21.905 [1].
AAS BS receiver: composite receiver function of an AAS BS receiving in an operating band
active antenna system base station: base station system which combines an Antenna Array with an Active transceiver
unit array and a Radio Distribution Network
band category: group of operating bands for which the same MSR scenarios apply
Base Station RF Bandwidth: bandwidth in which a base station transmits and/or receives single or multiple carrier(s)
and/or RATs simultaneously within a supported operating band
NOTE: In single carrier operation, the Base Station RF Bandwidth is equal to the channel bandwidth.
Base Station RF Bandwidth edge: frequency of one of the edges of the Base Station RF Bandwidth
beam: main lobe of a radiation pattern from an AAS BS
NOTE: For certain AAS antenna array, there may be more than one beam.
beam centre direction: direction equal to the geometric centre of the -3 dB EIRP contour of the beam
beam direction pair: data set consisting of the beam centre direction and the related beam peak direction
beam peak direction: direction where the maximum EIRP is supposed to be found
beamwidth: angles describing the major and minor axes of an ellipsoid closest fit to an essentially elliptic half-power
contour of a beam
carrier: modulated waveform conveying the physical channels
carrier aggregation: aggregation of two or more E-UTRA component carriers in order to support wider transmission
bandwidths
channel bandwidth: RF bandwidth supporting a single RF carrier with the transmission bandwidth configured in the
uplink or downlink of a cell
NOTE 1: The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF
requirements.
NOTE 2: For UTRA FDD, the channel bandwidth is the nominal channel spacing specified in 3GPP TS 25.104 [2],
For UTRA TDD 1,28 Mcps, the channel bandwidth is the nominal channel spacing specified in 3GPP
TS 25.105 [3].
NOTE 3: For E-UTRA, the channel bandwidths are specified in 3GPP TS 36.104 [4].
contiguous spectrum: spectrum consisting of a contiguous block of spectrum with no sub-block gap(s)
downlink operating band: part of the (FDD) operating band designated for downlink
EIRP accuracy directions set: beam peak directions for which the EIRP accuracy requirement is intended to be met.
The beam peak directions are related to a corresponding contiguous range or discrete list of beam centre directions by
the beam direction pairs included in the set
equivalent isotropic radiated power: equivalent power radiated from an isotropic directivity device producing the
same field intensity at a point of observation as the field intensity radiated in the direction of the same point of
observation by the discussed device
NOTE: Isotropic directivity is equal in all directions (0 dBi).
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equivalent isotropic sensitivity: sensitivity for an isotropic directivity device equivalent to the sensitivity of the
discussed device exposed to an incoming wave from a defined AoA
NOTE 1: The sensitivity is the minimum received power level at which a RAT specific requirement is met.
NOTE 2: Isotropic directivity is equal in all directions (0 dBi).
Inter RF Bandwidth gap: frequency gap between two consecutive Base Station RF Bandwidths that are placed within
two supported operating bands
non-AAS BS: BS conforming to one of the RF requirement specifications 3GPP TS 25.104 [2], 3GPP TS 25.105 [3],
3GPP TS 36.104 [4] or 3GPP TS 37.104 [5]
non-contiguous spectrum: spectrum consisting of two or more sub-blocks separated by sub-block gap(s)
OTA sensitivity directions declaration: set of manufacturer declarations comprising one or more EIS values (with
related RAT and channel bandwidth), and the directions where it (they) applies
NOTE: All the directions apply to all the EIS values in an OSDD.
Radio Bandwidth: frequency difference between the upper edge of the highest used carrier and the lower edge of the
lowest used carrier.
radio distribution network: passive network which distributes radio signals generated by the transceiver unit array to
the antenna array, and/or distributes the radio signals collected by the antenna array to the transceiver unit array
NOTE: In the case when the active transceiver units are physically integrated with the array elements of the
antenna array, the radio distribution network is a one-to-one mapping.
rated beam EIRP: EIRP that is declared as being achieved in the beam peak direction associated with a particular
beam direction pair
receiver target: angles of arrival in which reception is performed
receiver target redirection range: union of all the sensitivity RoAoA achievable through redirecting the receiver target
related to the OSDD
receiver target reference direction: direction inside the receiver target redirection range declared by the
manufacturer for conformance testing.
NOTE For an OSDD without receiver target redirection range, this is a direction inside the sensitivity RoAoA.
reference beam direction: declared beam direction pair, including reference beam centre direction and reference beam
peak direction where the reference beam peak direction is the direction for the intended maximum EIRP within the
EIRP accuracy compliance directions set
sensitivity RoAoA: RoAoA within which the declared EIS(s) of an OSDD is intended to be achieved at any instance of
time for a specific AAS BS direction setting
single RAT E-UTRA operation: operation of AAS BS declared to be single RAT E-UTRA in the operating band
NOTE: Single RAT E-UTRA operation does not cover in-band NB-IoT, nor guardband NB-IoT operation.
single RAT UTRA operation: operation of AAS BS declared to be single RAT UTRA in the operating band
sub-block: one contiguous allocated block of spectrum for use by the same Base Station
NOTE There may be multiple instances of sub-blocks within a Base Station RF Bandwidth.
sub-block gap: frequency gap between two consecutive sub-blocks within an Base Station RF Bandwidth, where the
RF requirements in the gap are based on co-existence for un-coordinated operation
TAB connector:
transceiver array boundary connector
throughput: number of payload bits successfully received per second for a reference measurement channel in a
specified reference condition
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transceiver array boundary: conducted interface between the transceiver unit array and the composite antenna
transmission bandwidth: bandwidth of an instantaneous E-UTRA transmission from a UE or BS, measured in
Resource Block units
uplink operating band: part of the (FDD) operating band designated for uplink
3.2 Symbols
For the purposes of the present document, the following symbols apply:
BeW The Beam width in θ
θ
BeW The Beam width in ϕ
ϕ
BW Channel bandwidth (for E-UTRA)
Channel
BW Aggregated channel bandwidth, expressed in MHz. BW = F - F
Channel_CA Channel_CA edge_high edge_low.
BW Transmission bandwidth configuration (for E-UTRA), expressed in MHz, where BW = N x
Config Config RB
180 kHz in the uplink and BW = 15 kHz + N x 180 kHz in the downlink.
Config RB
DwPTS Downlink part of the special subframe (for E-UTRA TDD operation
f Frequency
Δf Separation between the Base Station RF bandwidth edge frequency and the nominal -3dB point of
the measuring filter closest to the carrier frequency
Δf The largest value of Δf used for defining the requirement
max
F Carrier centre frequency
C
F Filter centre frequency
filter
f_offset Separation between the Base Station RF bandwidth edge frequency and the centre of the
measuring filter
f_offset The maximum value of f_offset used for defining the requirement
max
F Upper RF bandwidth edge, where F = F + F
BW RF,high BW RF,high C,high offset, RAT
F Lower RF bandwidth edge, where F = F - F
BW RF,low BW RF,low C,low offset, RAT
F Centre frequency of the highest transmitted/received carrier.
C,high
F Centre frequency of the lowest transmitted/received carrier.
C,low
F The lower edge of aggregated channel bandwidth, expressed in MHz. F = F - F
edge_low edge_low C_low offset.
F The upper edge of aggregated channel bandwidth, expressed in MHz. F = F + F
edge_high edge_high C_high offset.
F Frequency offset from the centre frequency of the highest transmitted/received carrier to
offset, RAT
the upper RF bandwidth edge, sub-block edge or inter-RF bandwidth edge, or from the centre
frequency of the lowest transmitted/received carrier to the lower RF bandwidth edge, sub-block
edge or inter-RF bandwidth edge for a specific RAT.
F The lowest frequency of the uplink operating band
UL_low
F The highest frequency of the uplink operating band
UL_high
F Frequency offset of unwanted signal
uw
N Transmission bandwidth configuration, expressed in units of resource blocks (for E-UTRA)
RB
W Sub-block gap size or Inter RF Bandwidth gap size
gap
θ The angle in the reference coordinate system between the projection of the x/y plane and the
radiation vector defined between -90° and 90°. 0° represents the direction perpendicular to the y/z
plane. The angle is aligned with the down-tilt angle.
φ The angle in the reference coordinate system between the x-axis and the projection of the radiation
vector onto the x/y plane defined between -180° and 180°.
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F
C,high
F
C,low
F F
offset, RAT, low offset, RAT, high
Multiple carriers / RATs
RAT_low RAT_high
Frequency
F F
BW RF,low BW RF,high
BW
RF
Figure 3.2-1: Illustration of RF bandwidth related symbols and definitions for Multi-standard Radio

Foffset, RAT
Foffset, RAT FC block 1, low Foffset, RAT
(Fc, low)
FC block 1, high
FC block n, low
FC block n, high
(Fc, high)
Multiple carriers / RATs Multiple carriers / RATs
Sub block 1 Sub block n
Sub block edge
FBW RF, low
FBW RF, high
BW RF
Figure 3.2-2: Illustration of RF bandwidth related symbols and definitions
for non-contiguous Multi-standard Radio
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F F
offset, RAT offset, RAT
F
offset, RAT
F
C band X, low F
C band X, high F F
C band Y, low C band Y, high
BW edge
RF
Inter RF bandwidth gap
BW of Band X BW of Band Y
RF
RF
Total RF bandwidth = BW of Band X + BW of Band Y
RF RF
Maximum radio bandwith
Figure 3.2-3: Illustration of maximum radio bandwidth and Total RF bandwidth
for Multi-band Multi-standard Radio
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
3GPP TR 21.905 [1].
AAS BS Active Antenna System Base Station
AoA Angle of Arrival
BC Band Category
BER Bit Error Rate
CA Carrier Aggregation
EIRP Equivalent Isotropic Radiated Power
EIS Equivalent Isotropic Sensitivity
FDD Frequency Division Duplex
FRC Fixed Reference Channel
ITU International Telecommunication Union
ITU-R Radio communication Sector of the ITU
MB-MSR Multi-Band Multi-Standard Radio
MBT Multi-Band Testing
MC Multi-Carrier in a Single RAT
OSDD OTA Sensitivity Directions Declaration
OTA Over The Air
RAT Radio Access Technology
RB Resource Block (for E-UTRA)
RDN Radio Distribution Network
RF Radio Frequency
RoAoA Range of Angles of Arrival
SBT Single Band Testing
SC Single-Carrier
TAB Tranceiver Array Boundary
TDD Time Division Duplex
UE User Equipment
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4 General test conditions and declarations
4.1 Measurement uncertainties and test requirements
4.1.1 General
The requirements of this clause apply to all applicable tests in part 2 of this specification, i.e. to all AAS BS radiated
tests.
The minimum requirements for AAS BS radiated requirements are given in 3GPP TS 37.105 [14] subclause 9 and 10
for the radiated transmitter and radiated receiver characteristics, respectively. Test Tolerances for the radiated test
requirements explicitly stated in part 2 of the present specification are given in annex C of this specification.
Test Tolerances are individually calculated for each test. The Test Tolerances are used to relax the minimum
requirements to create test requirements.
When a test requirement differs from the corresponding minimum requirement, then the Test Tolerance applied for the
test is non-zero. The Test Tolerance for the test and the explanation of how the minimum requirement has been relaxed
by the Test Tolerance are given in annex C.
4.1.2 Acceptable uncertainty of Test System
4.1.2.1 General
The maximum acceptable uncertainty of the Test System is specified below for each test defined explicitly in the
present specification, where appropriate.
The Test System shall enable the stimulus signals in the test case to be adjusted to within the specified tolerance and the
equipment under test to be measured with an uncertainty not exceeding the specified values. All tolerances and
uncertainties are absolute values, and are valid for a confidence level of 95 %, unless otherwise stated.
A confidence level of 95 % is the measurement uncertainty tolerance interval for a specific measurement that contains
95 % of the performance of a population of test equipment.
4.1.2.2 Measurement of transmitter
Table 4.1.2.2-1: Maximum Test System uncertainty for transmitter tests
Subclause Maximum Test System Derivation of Test System Uncertainty
Uncertainty
6.2 Radiated transmit ±1.0 dB, f ≤ 3.0 GHz See 3GPP TR 37.842 [7], subclause 10.3.2.2.
power ±1.2 dB, 3.0 GHz < f ≤ 4.2 GHz Uncertainty budget contributors as well as uncertainty
budget assessment described in annex E.

4.1.2.3 Measurement of receiver
Table 4.1.2.3-1: Maximum Test System Uncertainty for receiver tests
Subclause Maximum Test System Derivation of Test System Uncertainty
Uncertainty
7.2 OTA Sensitivity ±1.3 dB, f ≤ 3.0 GHz See 3GPP TR 37.842 [7], subclause 10.3.2.2.

±1.4 dB, 3.0 GHz < f ≤ 4
...