5 General test conditions and declarations
25.1433GPPRelease 17TSUTRA repeater conformance testing
This specification applies only to UTRA/FDD Repeater.
The requirements of this clause apply to all applicable tests in this specification. Many of the tests in this specification measure a parameter relative to a value, that is not fully specified in the UTRA specifications. For these tests, the Minimum Requirement is determined relative to a nominal value specified by the manufacturer.
Some requirements for the Repeater may be regional as listed in subclause 5.6.
When specified in a test, the manufacturer shall declare the nominal value of a parameter, or whether an option is supported.
Schematic drawings for the individual measurement set-up can be found in the Annex.
5.1 Acceptable uncertainty of Test System
The maximum acceptable uncertainty of the Test System is specified below for each test, 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.
For RF test it should be noted that the uncertainties in subclause 5.1 apply to the Test System operating into a nominal 50 ohm load and do not include system effects due to mismatch between the DUT and the Test System.
5.1.1 Measurements of test environments
The measurement accuracy of the Repeater test environments defined in Subclause 5.4, Test environments shall be.
Pressure: ± 5 kPa.
Temperature: ± 2 degrees.
Relative Humidity: ± 5 %.
DC Voltage: ± 1,0 %.
AC Voltage: ± 1,5 %.
Vibration: 10 %.
Vibration frequency: 0,1 Hz.
The above values shall apply unless the test environment is otherwise controlled and the specification for the control of the test environment specifies the uncertainty for the parameter.
5.1.2 Measurements of Repeater
Table 5.1: Maximum Test System Uncertainty
|
Subclause |
Maximum Test System Uncertainty |
Range over which Test System Uncertainty applies |
|
6.1 Maximum output power |
0,7 dB, f ≤ 3,0 GHz ±1.0 dB, 3,0 GHz < f ≤ 4,2 GHz |
|
|
7 Frequency error |
±12 Hz |
Measurement results of 500 Hz |
|
8 Out of band gain |
±0,5 dB, f ≤ 3,0 GHz ±0,8 dB, 3,0 GHz < f ≤ 19,0 GHz Calibration of test set-up shall be made without D.U.T. in order to achieve the accuracy |
|
|
9.1.2 Operating band unwanted emissions |
1,5 dB, f ≤ 3,0 GHz ±1,8 dB, 3,0 GHz < f ≤ 4,2 GHz Due to carrier leakage for measurements specified in a 1MHz bandwidth close to the carrier (4 MHz to 8 MHz), integration of the measurement using several narrower bandwidth measurements may be necessary in order to achieve the above accuracy. The interference from the signal generator ACLR shall be minimum 10 dB below that of a Base Station according toTS25.141 |
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|
9.1.3 Protection of BS receiver in the operating band |
for results > -60 dBm ±2,0 dB |
|
|
9.2 Spurious emissions |
In UTRA and coexistence receive bands: Outside above range: The interference from the signal generator ACLR shall be minimum 10 dB below that of a Base Station according toTS25.141 |
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|
10.1 Error vector magnitude |
± 2,5 % (single code applied) (±2,5 % measurement error for single code). 5,0 % EVM in the stimulus signal (single code) will shift the EVM maximum value 0,7% to 18,2%. (RSS repeater EVM and Stimulus EVM.) |
Measurement results from 12,5% to 22,5% at signal power = P_max – 3dB to P_max – 18 dB |
|
10.2 Peak code domain error |
±1,1dB Formula: RSS measurement error and impedance mismatch error (using ±1,0 dB measurement error and ±0,5 dB impedance mismatch error (stimulus side) assuming 14 dB return loss) |
Measurement results from – 36 dB to – 30 dB, at signal power = P_max – 3 dB to P_max – 18 dB |
|
10.3 Relative Code Domain Error |
1.7 dB Formula: Linear addition of the stimulus relative error power, analyser relative error power and repeater relative error power.normalised to repeater relative error power and expressed in dB. -27dB RCDE in the stimulus signal and -27dB RCDE from the analyser and -21 dB repeater minimum requirement is assumed. |
Measurements in the range -18 to -21 dB at signal power = Pmax |
|
11 Input intermodulation Characteristics |
±1,2 dB Formula: RSS CW1 level error, 2 x CW2 level error, and measurement error (using all errors = ±0,5 dB) |
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|
12 Output Intermodulation |
2,1 dB Spectrum emission Formula: RSS 2x Interference signal level error and Spectrum emission measurement level error. (1 dB interference signal level error is assumed.) Due to carrier leakage for measurements specified in a 1MHz bandwidth close to the carrier (4 MHz to 8 MHz), integration of the measurement using several narrower bandwidth measurements may be necessary in order to achieve the above accuracy. The interference from the signal generator ACLR shall be minimum 10 dB below that of a Base Station For spurious emission: In UTRA and coexistence receive bands: Outside above range: The interference signal must have a spurious emission level at least 10 dB below the spurious levels required in 9.2. |
|
|
13 Adjacent Channel Rejection Ratio |
0,7 dB |
5.2 Repeater test tolerances (informative)
The Test Tolerances defined in this subclause have been used to relax the Minimum Requirements in this specification to derive the Test Requirements.
The Test Tolerances are derived from Test System uncertainties, regulatory requirements and criticality to system performance. As a result, the Test Tolerances may sometimes be set to zero.
The test tolerances should not be modified for any reason e.g. to take account of commonly known test system errors (such as mismatch, cable loss, etc.)
Table 5.2: Test Tolerance
|
Subclause |
Test Tolerance (Note 1) |
Notes |
|
6.1 Maximum output power |
0,7 dB |
|
|
9.1.2 Operating band unwanted emissions |
1,5 dB |
0 dB test tolerance for the additional Band II, IV, V, X, XII, XIII and XIV requirements |
|
9.2 Spurious emissions |
0 dB |
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|
7 Frequency error |
12 Hz |
|
|
10.1 Error vector magnitude |
0 % |
Target value is shifted due to stimulus EVM |
|
10.2 Peak code domain error |
1,1 dB |
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|
10.3 Relative Code Domain Error |
1,7 dB |
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|
8 Out of band gain |
0,5dB |
|
|
11 Input intermodulation Characteristics |
1,2dB |
|
|
12 Output intermodulation |
1,5 dB for spectrum emission 0 dB for spurious emission |
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|
13 Adjacent Channel Rejection Ratio |
0,7 dB |
|
|
NOTE 1: Unless otherwise stated, The Test Tolerances are applied to the DUT Minimum Requirement. See Annex B. |
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5.3 Interpretation of measurement results
The measurement results returned by the Test System are compared – without any modification – against the Test Requirements as defined by the share risk principle.
The share risk principle is defined in ETR 273 Part 1 sub-part 2 section 6.5.
The actual measurement uncertainty of the Test System for the measurement of each parameter shall be included in the test report.
The recorded value for the Test System uncertainty shall be, for each measurement, equal to or lower than the appropriate figure in subclause 5.1 of this specification.
If the Test System for a test is known to have a measurement uncertainty greater than that specified in subclause 5.1, it is still permitted to use this apparatus provided that an adjustment is made as follows.
Any additional uncertainty in the Test System over and above that specified in subclause 5.1 shall be used to tighten the Test Requirement-making the test harder to pass. (For some tests e.g. receiver test, this may require modification of stimulus signals). This procedure will ensure that a Test System not compliant with subclause 5.1does not increase the chance of passing a device under test where that device would otherwise have failed the test if a Test System compliant with subclause 5.1 had been used.
5.4 Test Environment
For each test in the present document, the environmental conditions under which the Repeater is to be tested are defined.
5.4.1 Normal test environment
When a normal test environment is specified for a test, the test should be performed within the minimum and maximum limits of the conditions stated in Table 5.3.
Table 5.3: Limits of conditions for Normal Test Environment
|
Condition |
Minimum |
Maximum |
|
Barometric pressure |
86 kPa |
106 kPa |
|
Temperature |
15C |
30C |
|
Relative Humidity |
20 % |
85 % |
|
Power supply |
Nominal, as declared by the manufacturer |
|
|
Vibration |
Negligible |
|
The ranges of barometric pressure, temperature and humidity represent the maximum variation expected in the uncontrolled environment of a test laboratory. If it is not possible to maintain these parameters within the specified limits, the actual values shall be recorded in the test report.
NOTE: This may, for instance, be the case for measurements of radiated emissions performed on an open field test site.
5.4.2 Extreme test environment
The manufacturer shall declare one of the following:
1) the equipment class for the equipment under test, as defined in the IEC 60 721-3-3 [6];
2) the equipment class for the equipment under test, as defined in the IEC 60 721-3-4 [7];
3) the equipment that does not comply to the mentioned classes, the relevant classes from IEC 60 721 [6], [7] documentation for Temperature, Humidity and Vibration shall be declared.
NOTE: Reduced functionality for conditions that fall out side of the standard operational conditions are not tested in the present document. These may be stated and tested separately.
5.4.2.1 Extreme temperature
When an extreme temperature test environment is specified for a test, the test shall be performed at the standard minimum and maximum operating temperatures defined by the manufacturer’s declaration for the equipment under test.
Minimum temperature:
The test shall be performed with the environment test equipment and methods including the required environmental phenomena into the equipment, conforming to the test procedure of IEC 60 068-2-1 [8].
Maximum temperature:
The test shall be performed with the environmental test equipment and methods including the required environmental phenomena into the equipment, conforming to the test procedure of IEC 60 068-2-2 [9].
NOTE: It is recommended that the equipment is made fully operational prior to the equipment being taken to its lower operating temperature.
5.4.3 Vibration
When vibration conditions are specified for a test, the test shall be performed while the equipment is subjected to a vibration sequence as defined by the manufacturer’s declaration for the equipment under test. This shall use the environmental test equipment and methods of inducing the required environmental phenomena in to the equipment, conforming to the test procedure of IEC 60 068-2-6 [10]. Other environmental conditions shall be within the ranges specified in subclause 5.4.1.
NOTE: The higher levels of vibration may induce undue physical stress in to equipment after a prolonged series of tests. The testing body should only vibrate the equipment during the RF measurement process.
5.4.4 Power supply
When extreme power supply conditions are specified for a test, the test shall be performed at the standard upper and lower limits of operating voltage defined by manufacturer’s declaration for the equipment under test.
Upper voltage limit:
The equipment shall be supplied with a voltage equal to the upper limit declared by the manufacturer (as measured at the input terminals to the equipment). The tests shall be carried out at the steady state minimum and maximum temperature limits declared by the manufacturer for the equipment, to the methods described in IEC 60 068-2-1 [8] Test Ab/Ad and IEC 60 068-2-2 [9] Test Bb/Bd: Dry Heat.
Lower voltage limit:
The equipment shall be supplied with a voltage equal to the lower limit declared by the manufacturer (as measured at the input terminals to the equipment). The tests shall be carried out at the steady state minimum and maximum temperature limits declared by the manufacturer for the equipment, to the methods described in IEC 60 068-2-1 [8] Test Ab/Ad and IEC 60 068-2-2 [9] Test Bb/Bd: Dry Heat.
5.5 Selection of configurations for testing
Most tests in the present document are only performed for a subset of the possible combinations of test conditions. For instance:
– only one RF channel may be specified to be tested;
– only one timeslot may be specified to be tested.
When a test is performed by a test laboratory, the choice of which combinations are to be tested shall be specified by the laboratory. The laboratory may consult with operators, the manufacturer or other bodies.
When a test is performed by a manufacturer, the choice of which combinations are to be tested may be specified by an operator.
5.6 Regional requirements
Some requirements in TS 25.143 may only apply in certain regions. Table 5.4 lists all requirements that may be applied differently in different regions.
Table 5.4: List of regional requirements
|
Sub-clause number |
Requirement |
Comments |
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|
4.1 |
Frequency bands |
Some bands may be applied regionally. |
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4.2 |
TX – RX frequency separation |
The requirement is applied according to what frequency bands in clause 4.1 that are supported by the Repeater. |
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4.3 |
Channel arrangement |
The requirement is applied according to what frequency bands in clause 4.1 that are supported by the Repeater. |
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6.1 |
Maximum output power |
In certain regions, the minimum requirement for normal conditions may apply also for some conditions outside the ranges of conditions defined as normal. |
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9.1.2 |
Operating band unwanted emissions |
The mask specified may be mandatory in certain regions. In other regions this mask may not be applied. Additional spectrum protection may apply regionally. |
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9.2.2.1 |
Spurious emissions (Category A) |
These requirements shall be met in cases where Category A limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [4], are applied. |
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9.2.2.2 |
Spurious emissions (Category B) |
These requirements shall be met in cases where Category B limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [4], are applied. |
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9.2.2.4 |
Spurious emissions: Co-existence with other systems in the same geographical area |
These requirements may apply in geographic areas in which both UTRA FDD Repeater and GSM900, DCS1800, PCS1900, GSM850 and/or UTRA FDD operating in another frequency band are deployed. |
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9.2.2.5 |
Spurious emissions: Co-existence with co-located and co-sited base stations |
These requirements may be applied for the protection of other BS receivers when GSM900, DCS1800, PCS1900, GSM850 and/or UTRA FDD BS operating in another frequency band are co-located with a UTRA FDD Repeater. |
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9.2.2.6 |
Spurious emissions: Co-existence with PHS |
This requirement may be applied for the protection of PHS in geographic areas in which both PHS and UTRA FDD Repeaters are deployed. |
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9.2.2.7.1 |
Spurious emissions: Co-existence with UTRA TDD and/or E-UTRA TDD -Operation in the same geographic area |
This requirement may be applied for the protection of UTRA UE in geographic areas in which both UTRA TDD BS and UTRA FDD Repeaters are deployed. |
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9.2.2.7.2 |
Spurious emissions: Co-existence with UTRA TDD and/or E-UTRA TDD – Co-location |
This requirement may be applied for the protection of UTRA TDD BS receivers when UTRA TDD BS and UTRA FDD Repeaters are co-located. |
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9.2.2.9 |
Spurious emissions: Protection of public safety operations |
This requirement shall be applied to Repeater operating in Bands XIII and XIV to ensure that appropriate interference protection is provided to 700 MHz public safety operations. |
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11.2.2 |
Input intermodulation: Co-location with BS in other systems |
The requirement may be applied when GSM 900, DCS 1800, PCS1900, GSM850 and/or UTRA FDD BS operating in another frequency band and UTRA-FDD Repeaters are co-located. |
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11.2.3 |
Input Intermodulation: Co-existence with other systems |
These requirements may apply in geographic areas in which both UTRA FDD Repeater and GSM900, DCS1800, PCS1900, GSM850 and/or UTRA FDD operating in another frequency band are deployed. |
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5.7 Test Models
The set-up of physical channels for the Repeater tests shall be according to one of the test models described in TS 25.141 [11]. A reference to the applicable test model in TS 25.141 is made for each test in Table 5.5 by referring to the test model number as it appears in TS 25.141.
These test models shall be used in the tests of both the up-link and the down-link directions of the Repeater unless otherwise stated.
Table 5.5: List of the applicable test models
|
Test model number in TS 25.141 |
Requirement |
Comments |
|
Test Model 1 |
Repeater output power |
|
|
Test Model 1 |
Out of band emission |
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|
Test Model 1 |
Spurious emission |
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|
Test Model 1 |
Error vector magnitude |
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Test Model 3 |
Peak code domain error |
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|
Test Model 6 |
Relative code domain error |
5.8 Format and interpretation of tests
Each test in the following clauses has a standard format:
X Title
All tests are applicable to all equipment within the scope of the present document, unless otherwise stated.
X.1 Definition and applicability
This subclause gives the general definition of the parameter under consideration and specifies whether the test is applicable to all equipment or only to a certain subset.
X.2 Minimum Requirements
This subclause is an informative copy of the Minimum Requirement defined by the core specification.
In addition, this subclause contains the reference to the subclause to the 3GPP reference (or core) specification which defines the Minimum Requirement.
X.3 Test purpose
This subclause defines the purpose of the test.
X.4 Method of test
X.4.1 Initial conditions
This subclause defines the initial conditions for each test, including the basic measurement set-up.
X.4.2 Procedure
This subclause describes the steps necessary to perform the test and provides further details of the test definition like point of access (e.g. antenna port), domain (e.g. frequency-span), range, weighting (e.g. bandwidth), and algorithms (e.g. averaging).
X.5 Test Requirements
This subclause defines the pass/fail criteria for the equipment under test. See subclause 5.3 Interpretation of measurement results.
5.9 Repeater configurations
5.9.1 Power supply options
If the repeater is supplied with a number of different power supply configurations, it may not be necessary to test RF parameters for each of the power supply options, provided that it can be demonstrated that the range of conditions over which the equipment is tested is at least as great as the range of conditions due to any of the power supply configurations.
5.9.2 Combining of Repeaters
If the repeater is intended for combination with additional apparatus connected to a repeater port and this combination is supplied as a system, the combination of repeater together with the additional apparatus shall also fulfil the repeater requirements. E.g. if the repeater is intended for combination such that multiple repeaters amplify the same signals into the same ports the combination shall also fulfil the repeater requirements.
An example of such a configuration is shown in figure 5.1
Figure 5.1: Example of repeater configuration