4 General conducted test conditions and declarations
38.115-13GPPNRRelease 17Repeater conformance testing - Part 1: Conducted conformance testingTS
4.1 Measurement uncertainties and test requirements
<Text to be added>
4.2 Conducted requirement reference points
For repeater type 1-C, the requirements are applied at the repeater antenna connector (BS-side connector or UE-side connector) for downlink or uplink for the configuration in normal operating conditions.
Downlink
Uplink
UE-side connector
BS-side connector
Figure 4.2-1: Repeater type 1-C downlink and uplink interface
4.3 Repeater classes
4.3.1 Repeater class for downlink
The requirements in this specification apply to downlink Wide Area repeaters, downlink Medium Range repeaters and downlink Local Area repeaters unless otherwise stated. The associated deployment scenarios for each class are exactly the same for repeater with and without connectors.
For repeater type 1-C, repeater downlink classes are defined as indicated below:
– Wide Area repeaters are characterised by requirements derived from Macro Cell scenarios with a repeater to UE minimum distance along the ground equal to 35 m.
– Medium Range repeaters are characterised by requirements derived from Micro Cell scenarios with a repeater to UE minimum distance along the ground equal to 5 m.
– Local Area repeaters are characterised by requirements derived from Pico Cell scenarios with a repeater to UE minimum distance along the ground equal to 2 m.
4.3.2 Repeater class for uplink
The requirements in this specification apply to uplink Wide Area repeaters and uplink Local Area repeaters unless otherwise stated. The associated deployment scenarios for each class are exactly the same for repeater with and without connectors.
For repeater type 1-C, repeater uplink classes are defined as indicated below:
– Wide Area repeaters are characterised by requirements derived from Macro Cell and/or Micro Cell scenarios.
– Local Area repeaters are characterised by requirements derived from Pico Cell and/or Micro Cell scenarios.
4.4 Regional requirements
Some requirements in the present document may only apply in certain regions either as optional requirements, or as mandatory requirements set by local and regional regulation. It is normally not stated in the 3GPP specifications under what exact circumstances the regional requirements apply, since this is defined by local or regional regulation.
Table 4.4-1 lists all requirements in the present specification that may be applied differently in different regions.
4.5 Repeater configurations
4.5.1 General configurations
For repeater type 1-C, the requirements are applied at the repeater antenna connector (BS-side connector or UE-side connector) for downlink or uplink for the configuration in normal operating conditions.
Downlink
Uplink
UE-side
test port
BS-side
test port
Figure 4.5.1-1: Repeater type 1-C test ports
4.5.2 Transmission with multiple BS-side antenna connectors
Unless otherwise stated, for the tests in clause 6 of the present document, the requirement applies for each BS-side antenna connector in the case of transmission with multiple BS-side antenna connectors.
Requirements are tested at the antenna connector, with the remaining antenna connector(s) being terminated. If the manufacturer has declared the antenna connectors to be equivalent (D.13), it is sufficient to measure the signal at any one of the BS-side antenna connectors.
4.5.3 Transmission with multiple UE-side antenna connectors
Unless otherwise stated, for the tests in clause 6 of the present document, the requirement applies for each UE-side antenna connector in the case of transmission with multiple UE-side antenna connectors.
Requirements are tested at the antenna connector, with the remaining antenna connector(s) being terminated. If the manufacturer has declared the antenna connectors to be equivalent (D.13), it is sufficient to measure the signal at any one of the UE-side antenna connectors.
4.5.4 Duplexers
The requirements of the present document shall be met with a duplexer fitted, if a duplexer is supplied as part of the repeater. If the duplexer is supplied as an option by the manufacturer, sufficient tests should be repeated with and without the duplexer fitted to verify that the repeater meets the requirements of the present document in both cases.
The following tests shall be performed with the duplexer fitted, and without it fitted if this is an option:
1) clause 6.2, repeater output power, for the highest static power step only, if this is measured at the antenna connector;
2) clause 6.4, out of band gain; outside the repeater downlink or uplink band;
3) clause 6.5, unwanted emissions; outside the repeater downlink or uplink band;
4) clause 6.7, output intermodulation; for the testing of conformance, the carrier frequencies should be selected to minimize intermodulation products from the transmitters falling in receive channels.
5) clause 6.9, Adjacent Channel Rejection Ratio; outside the repeater downlink or uplink band.
The remaining tests may be performed with or without the duplexer fitted.
NOTE 1: When performing receiver tests with a duplexer fitted, it is important to ensure that the output from the transmitters does not affect the test apparatus. This can be achieved using a combination of attenuators, isolators and filters.
NOTE 2: When duplexers are used, intermodulation products will be generated, not only in the duplexer but also in the antenna system. The intermodulation products generated in the antenna system are not controlled by 3GPP specifications, and may degrade during operation (e.g. due to moisture ingress). Therefore, to ensure continued satisfactory operation of a repeater, an operator will normally select NR-ARFCNs to minimize intermodulation products falling on receive channels. For testing of complete conformance, an operator may specify the NR-ARFCNs to be used.
4.5.5 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.
4.5.6 Ancillary RF amplifiers
The repeater type 1-C requirements of the present document shall be met with the ancillary RF amplifier fitted. At tests, the ancillary amplifier is connected to the repeater by a connecting network (including any cable(s), attenuator(s), etc.) with applicable loss to make sure the appropriate operating conditions of the ancillary amplifier and the repeater. The applicable connecting network loss range is declared by the manufacturer (D.14). Other characteristics and the temperature dependence of the attenuation of the connecting network are neglected. The actual attenuation value of the connecting network is chosen for each test as one of the applicable extreme values. The lowest value is used unless otherwise stated.
Sufficient tests should be repeated with the ancillary amplifier fitted and, if it is optional, without the ancillary RF amplifier to verify that the repeater meets the requirements of the present document in both cases.
When testing, the following tests shall be repeated with the optional ancillary amplifier fitted according to the table below, where "x" denotes that the test is applicable:
Table 4.5.6-1: Tests applicable to ancillary RF amplifiers
|
Clause |
Ancillary RF amplifier needed |
|
6.2 |
x |
|
6.4 |
x |
|
6.5 |
x |
|
6.7 |
x |
|
6.8 |
x |
|
6.9 |
x |
In repeater output power test (clause 6.2) highest applicable attenuation value is applied.
4.5.7 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 4.5.7-1.
Figure 4.5.7-1: Example of repeater configuration
4.6 Manufacturer declarations
The following repeater declarations listed in table 4.6-1, when applicable to the repeater under test, are required to be provided by the manufacturer for the conducted requirements testing of the repeater type 1-C. Declarations can be made independently for UL and DL.
Table 4.6-1: Manufacturer declarations for repeater type 1-C conducted test requirements
|
Declaration identifier |
Declaration |
Description |
|
D.1 |
Repeater class |
Repeater class of the repeater, declared as Wide Area repeater, Medium Range repeater, or Local Area repeater. |
|
D.2 |
Operating bands and passband frequency ranges |
List of NR operating band(s) supported by single-band connector(s) and/or multi-band connector(s) of the repeater and passband frequency range(s) within the operating band(s) that the repeater can operate in. Declarations shall be made per antenna connector. |
|
D.3 |
Spurious emission category |
Declare the repeater spurious emission category as either category A or B with respect to the limits for spurious emissions, as defined in Recommendation ITU-R SM.329 [3]. |
|
D.4 |
Additional operating band unwanted emissions |
The manufacturer shall declare whether the repeater under test is intended to operate in geographic areas where the additional operating band unwanted emission limits defined in clause 6.6.4.5.6 apply. (Note 2, Note 3). |
|
D.5 |
Co-existence with other systems |
The manufacturer shall declare whether the repeater under test is intended to operate in geographic areas where one or more of the systems GSM850, GSM900, DCS1800, PCS1900, UTRA FDD, UTRA TDD, E-UTRA, PHS and/or NR operating in another band are deployed. |
|
D.6 |
Co-location with other base stations, repeaters and IABs |
The manufacturer shall declare whether the repeater under test is intended to operate co-located with Base Stations, repeaters and IABs of one or more of the systems GSM850, GSM900, DCS1800, PCS1900, UTRA FDD, UTRA TDD, E-UTRA and/or NR operating in another band. |
|
D.7 |
Single band connector or multi-band connector |
Declaration of the single band or multi-band capability of single band connector(s) or multi-band connector(s), declared for every connector. |
|
D.8 |
Other band combination multi-band restrictions |
Declare any other limitations under simultaneous operation in the declared band combinations (D.12) for each multi-band connector which have any impact on the test configuration generation. Declared for every multi-band connector. |
|
D.9 |
Rated output power per passband (Prated,p,AC) |
Conducted rated output power per passband, per single band connector or multi-band connector. Declared per supported passband, per antenna connector. (Note 1) |
|
D.10 |
Rated total output power (Prated,t,AC) |
Conducted total rated output power. Declared per supported operating band, per antenna connector. For multi-band connectors declared for each supported operating band in each supported band combination. (Note 1) |
|
D.11 |
Rated multi-band total output power, Prated,MB,TABC |
Conducted multi-band rated total output power. Declared per supported operating band combinations, per multi-band connector. (Note 1) |
|
D.12 |
Operating band combination support |
List of operating bands combinations supported by single-band connector(s) and/or multi-band connector(s) of the repeater. Declared per antenna connector. |
|
D.13 |
Equivalent connectors |
List of antenna connectors which have been declared equivalent. Equivalent connectors imply that the antenna connector are expected to behave in the same way when presented with identical signals under the same operating conditions. All declarations made for the antenna connector are identical and the transmitter unit and/or receiver unit driving the antenna connector are of identical design. |
|
D.14 |
Connecting network loss range for repeater testing with ancillary RF amplifiers |
Declaration of the range of connecting network losses (in dB) for repeater type 1-C testing with ancillary Tx RF amplifier only, or with Rx RF amplifier only, or with combined Tx/Rx RF amplifiers. (Note 4) |
|
D.15 |
Long delay repeater |
Declared only if the repeater internal delay between the input and output for this repeater does not fit within the TDD transient time. The repeater is intended for situations in which it will not cause interference to other nodes. This is achieved by RF isolation or by reservation of longer guard periods, which degrades frame utilization. The length of repeaters internal delay is declared using this declaration. |
|
D.16 |
Input signal power level for maximum output power |
Declaration of input signal power level required to reach maximum output power. Declared per passband. |
|
D.17 |
Repeater radiating direction |
Declaration on whether the repeater is intended to radiate in DL, UL or both. Testing shall be performed only for the direction(s) in which the repeater radiates. |
|
NOTE 1: If a repeater is capable of 256QAM operation then up to two rated output power declarations may be made. One declaration is applicable when configured for 256QAM operation, and the other declaration is applicable when not configured for 256QAM operation. If a repeater is not capable of 256QAM operation, only one declaration can be made. NOTE 2: If repeater is declared to support Band n20 (D.2), the manufacturer shall declare if the repeater may operate in geographical areas allocated to broadcasting (DTT). Additionally, related declarations of the emission levels and maximum output power shall be declared. NOTE 3: If repeater BS is declared to support Band n24 (D.2), the manufacturer shall declare if the repeater may operate in geographical areas where FCC regulations apply. Additionally, related declarations of the emission levels and maximum output power shall be declared. NOTE 4: This manufacturer declaration is optional. |
||
4.7 Test configurations
4.7.1 General
Test configurations in this specification refer to the configuration of test signals from test equipment that are provided to the repeater input.
The test configurations shall be constructed using the methods defined below, subject to the parameters declared by the manufacturer for the supported RF configurations as listed in clause 4.6. The test configurations to use for conformance testing are defined for each supported RF configuration in clauses 4.8.3 and 4.8.4.
The applicable test models for generation of the carrier transmit test signal are defined in clause 4.9.
NOTE: If required, carriers are shifted to align with the channel raster.
4.7.2 Test signal used to build Test Configurations
The signal’s channel bandwidth and subcarrier spacing used to build NR Test Configurations shall be selected according to table 4.7.2-1.
Table 4.7.2-1: Signal to be used to build NR repeater TCs
|
Operating Band characteristics |
FDL_high – FDL_low or FUL_high – FUL_low <100 MHz (Note 2) |
FDL_high – FDL_low or FUL_high – FUL_low ≥ 100 MHz (Note 2) |
|
|
TC signal |
BWchannel |
5 MHz (Note 1) |
20 MHz (Note 1) |
|
characteristics |
Subcarrier spacing |
Smallest supported subcarrier spacing of the operating band |
|
|
NOTE 1: If this channel bandwidth is not supported for the operating band, the narrowest supported channel bandwidth shall be used. NOTE 2: Either the DL operating band characteristics or the UL operating band characteristics should be considered (if different) depending on the tested transmission direction. |
|||
4.7.3 RTC1: Contiguous spectrum operation
The purpose of test configuration RTC1 is to test all repeater requirements that need an input signal in the passband when there is only one passband per operating band.
4.7.3.1 RTC1 generation
RTC1 shall be constructed on a per band basis using the following method:
– Declared maximum passband Bandwidth supported shall be used;
– Select the carrier to be tested according to 4.7.2 and place it adjacent to the lower passband edge. If the width of the passband is at least twice the bandwidth of the signal to be tested then place a second signal adjacent to the upper passband edge. Otherwise reposition the carrier to be tested according to the single carrier test frequencies described in section 4.9.1.
The test configuration should be constructed sequentially on a per band basis using the same antenna connector. All configured component carriers are transmitted simultaneously in the tests where the repeater should be ON.
4.7.3.2 RTC1 power allocation
Set the power spectral density of each carrier to the same level so that the sum of the carrier powers equals the expected input power to the repeater for the test (i.e., either Prated,in or Prated,in + 10dB) according to the manufacturer’s declaration in clause 4.6.
4.7.5 RTC2: Non-contiguous spectrum operation
The purpose of RTC2 is to test all repeater requirements that need an input signal in the passband when there is more than one passband per operating band.
4.7.5.1 RTC2 generation
RTC2 is constructed on a per band basis using the following method:
– The repeater passband bandwidths shall be the maximum passband Bandwidth supported for multiple passbands (D.11). The repeater RF Bandwidth consists of one sub-block gap and the two highest and lowest declared passbands .
– For each passband, select the carrier to be tested according to 4.7.2. If the the width of the passband is at least twice that of the carrier to be tested then place a carrier adjacent to the upper passband edge and another carrier (as described in 4.7.2) adjacent to the lower passband edge. Otherwise, tests shall be applied with one carrier adjacent to the lower sub-block edge and one carrier adjacent to the upper sub-block edge for each sub-block gap.
– The sub-block edges adjacent to the sub-block gap shall be determined using the specified Foffset_high and Foffset_low for the carriers adjacent to the sub-block gap.
4.7.5.2 RTC2 power allocation
Set the power of each carrier to the same level so that the sum of the carrier powers equals the expected input power to the repeater for the test (i.e., either Prated,in or Prated,in + 10dB) according to the manufacturer’s declaration in clause 4.6.
4.7.6 RTC3: Multi-band test configuration for full carrier allocation
The purpose of RTC3 is to test multi-band operation aspects.
4.7.6.1 RTC3 generation
RTC3 is based on re-using the previously specified test configurations applicable per band involved in multi-band operation. It is constructed using the following method:
– The repeater RF Bandwidth of each supported operating band shall be the declared maximum repeater RF Bandwidth in multi-band operation (D.12).
– The number of carriers of each supported operating band shall be sufficient to fill all of the passbands with one or two carriers (depending on the passband bandwidth). Carriers shall be selected according to 4.7.2 and shall first be placed at the outermost edges of the declared repeater Radio Bandwidth. Additional carriers shall next be placed at the repeater RF Bandwidths edges, if possible.
– Each concerned band shall be considered as an independent band and the carrier placement in each band shall be according to RTC1, where the declared parameters for multi-band operation shall apply. The mirror image of the single-band test configuration shall be used in each alternate band(s) and in the highest band.
– If the bandwidth of any passband is insufficient to accommodate two carriers then tests shall be repeated with the test carriers positioned such that there is a carrier adjacent to the lower edge of a sub-block gap or inter-band gap and a carrier adjacent to the upper edge of the sub-block gap or inter-band gap, for each sub-block gap or inter-block gap.
4.7.6.2 RTC3 power allocation
Unless otherwise stated, set the power of each carrier in all supported operating bands to the same level so that the sum of the carrier powers equals the expected input power to the repeater for the test (i.e., either Prated,in or Prated,in + 10dB) according to the manufacturer’s declaration in clause 4.6.
4.7.7 RTC4: Multi-band test configuration with high PSD per carrier
The purpose of RTC4 is to test multi-band operation aspects considering higher PSD cases with reduced number of carriers and non-contiguous operation (if supported) in multi-band mode.
4.7.7.1 RTC4 generation
RTC4 is based on re-using the existing test configuration applicable per band involved in multi-band operation. It is constructed using the following method:
– The repeater RF Bandwidth of each supported operating band shall be the declared maximum repeater RF Bandwidth in multi-band operation (D.12).
– The allocated repeater RF Bandwidth of the outermost bands shall be located at the outermost edges of the declared Maximum Radio Bandwidth.
– The maximum number of carriers is limited to two per band. Carriers shall be selected according to 4.7.2 and shall first be placed at the outermost edges of the declared Maximum Radio Bandwidth for outermost bands and at the Repeater RF Bandwidths edges for middle band(s) if any. Additional carriers shall next be placed at the Repeater RF Bandwidths edges, if possible.
– Each concerned band shall be considered as an independent band and the carrier placement in each band shall be according to RTC3, where the declared parameters for multi-band operation shall apply. Narrowest supported NR channel bandwidth and smallest subcarrier spacing shall be used in the test configuration.
– If only one carrier can be placed for the concerned band(s), the carrier(s) shall be placed at the outermost edges of the declared maximum radio bandwidth for outermost band(s) and at one of the outermost edges of the supported frequency range within the Base Station RF Bandwidths for middle band(s) if any.
4.7.7.2 RTC4 power allocation
Unless otherwise stated, set the power of each carrier in all supported operating bands to the same level so that the sum of the carrier powers equals the expected input power to the repeater for the test (i.e., either Prated,in or Prated,in + 10dB) according to the manufacturer’s declaration in clause 4.6.
4.8 Applicability of requirements
4.8.1 General
4.8.2 Applicability of test configurations for single-band operation
The applicable test configurations are specified in the tables below for each the supported RF configuration, which shall be declared according to clause 4.6. The generation and power allocation for each test configuration is defined in clause 4.7. This clause contains the test configurations for a repeater capable of single carrier, and/or multi-carrier operation in both contiguous and non-contiguous spectrum in single band.
For a repeater declared to support a single passband within a single band (D.2), the test configurations in the second column of table 4.8.3-1 shall be used for testing.
For a repeater declared to support more than one passband within a single band (D.2) and where the parameters in the manufacture’s declaration according to clause 4.6 are identical for all passbands, the test configurations in the third column of table 4.8.3-1 shall be used for testing.
For a repeater declared to support more than one passband within a single band (D.2) and where the parameters in the manufacture’s declaration according to clause 4.6 are not identical for all passbands, the test configurations in the fourth column of table 4.8.3-1 shall be used for testing.
Table 4.8.3-1: Test configurations for a repeater capable of single or multiple passbands in a single band
|
Test case |
Single passband repeater |
Multiple passband capable repeater with identical parameters per passband |
Multiple passband capable repeater with different parameters per passband |
|
Repeater output power |
RTC1 |
RTC1 |
RTC1, RTC2 |
|
Frequency stability |
Tested with Error Vector Magnitude |
Tested with Error Vector Magnitude |
Tested with Error Vector Magnitude |
|
Out of band gain |
N/A |
N/A |
N/A |
|
Transmit ON/OFF power (only applied for NR TDD repeater) |
RTC1 |
RTC1 |
RTC1, RTC2 |
|
Error Vector Magnitude |
RTC1 |
RTC1 |
RTC1, RTC2 |
|
Adjacent Channel Leakage power Ratio (ACLR) |
RTC1 |
RTC1, RTC2 |
RTC1, RTC2 |
|
Cumulative ACLR requirement in non-contiguous spectrum |
– |
RTC2 |
RTC2 |
|
Operating band unwanted emissions |
RTC1 |
RTC1, RTC2 |
RTC1, RTC2 |
|
Transmitter spurious emissions |
RTC1 |
RTC1, RTC2 |
RTC1, RTC2 |
|
Output intermodulation |
RTC1 |
RTC1, RTC2 |
RTC1, RTC2 |
|
Input intermodulation |
N/A |
N/A |
N/A |
|
Adjacent Channel Rejection Ratio (ACRR) |
RTC1 |
RTC2 |
RTC1, RTC2 |
|
Receiver spurious emissions |
RTC1 |
RTC1, RTC2 |
RTC1, RTC2 |
4.8.4 Applicability of test configurations for multi-band operation
For a repeater declared to be capable of multi-band operation, the test configuration in table 4.8.4-1 and/or table 4.8.3-1 shall be used for testing. In the case where multiple bands are mapped on common multi-band connector, the test configuration in the second column of table 4.8.4-1 shall be used. In the case where multiple bands are mapped on common single-band connector, the test configuration in table 4.8.3-1 shall be used. In the case where multiple bands are mapped on separate single-band connector or multi-band connector, the test configuration in the third column of table 4.8.4-1 shall be used.
Table 4.8.4-1: Test configuration for a BS capable of multi-band operation
|
BS test case |
Test configuration |
|
|
Common connector |
Separate connectors |
|
|
Repeater output power |
RTC1/2 (Note 1), RTC3 |
RTC1/2 (Note 1), RTC3 |
|
Frequency stability |
Tested with Error Vector Magnitude |
Tested with Error Vector Magnitude |
|
Out of band gain |
N/A |
N/A |
|
Transmit ON/OFF power (only applied for NR TDD BS) |
RTC3 |
RTC3 |
|
Frequency error |
Tested with Error Vector Magnitude |
Tested with Error Vector Magnitude |
|
Error Vector Magnitude (Note 8) |
RTC1/2 (Note 1), RTC3 |
RTC1/2 (Note 1), RTC3 |
|
Adjacent Channel Leakage power Ratio (ACLR) |
RTC1/2 (Note 1), RTC4 (Note 2) |
RTC1/2 (Note 1, 3), RTC4 (Note 2, 3) |
|
Cumulative ACLR requirement in non-contiguous spectrum |
RTC2 (Note 1), RTC4 (Note 2) |
RTC2 (Note 1, 3) |
|
Operating band unwanted emissions |
RTC1/2 (Note 1), RTC4 |
RTC1/2 (Note 1, 3), RTC4 (Note 3) |
|
Transmitter spurious emissions |
RTC1/2 (Note 1), RTC4 |
RTC1/2 (Note 1, 3), RTC4 (Note 3) |
|
Output intermodulation |
RTC1/2 (Note 1) |
RTC1/2 (Note 1, 3) |
|
Input Intermodulation |
N/A |
N/A |
|
Adjacent Channel Rejection Ratio |
RTC1/2 (Note 1), RTC4 (Note 2) |
RTC1/2 (Note 1, 3), RTC4 (Note 2, 3) |
|
Receiver spurious emissions |
RTC1/2 (Note 1), RTC4 |
RTC1/2 (Note 1, 3), RTC4 (Note 3) |
|
Note 1: RTC1 and/or RTC2 shall be applied in each supported operating band. Note 2: RTC4 may be applied for Inter RF Bandwidth gap only. Note 3: For single-band operation test, other antenna connector(s) is (are) terminated. |
||
4.9 RF channels and test models
4.9.1 RF channels
For the single carrier testing many tests in this TS are performed with appropriate frequencies in the bottom, middle and top channels of the supported frequency range of the repeater. These are denoted as RF channels B (bottom), M (middle) and T (top).
Unless otherwise stated, the test shall be performed with a single carrier at each of the RF channels B, M and T.
Many tests in this TS are performed with the maximum repeater RF Bandwidth located at the bottom, middle and top of the supported frequency range in the operating band. These are denoted as BRFBW (bottom), MRFBW (middle) and TRFBW (top).
Unless otherwise stated, the test shall be performed at BRFBW, MRFBW and TRFBW defined as following:
– BRFBW: maximum repeater RF Bandwidth located at the bottom of the supported frequency range in the operating band.
– MRFBW: maximum repeater RF Bandwidth located in the middle of the supported frequency range in the operating band.
– TRFBW: maximum repeater RF Bandwidth located at the top of the supported frequency range in the operating band.
Occupied bandwidth test in this TS is performed with the aggregated repeater channel bandwidth and sub-block bandwidths located at the bottom, middle and top of the supported frequency range in the operating band. These are denoted as BBW Channel CA(bottom), MBW Channel CA (middle) and TBW Channel CA (top) for contiguous spectrum operation.
Unless otherwise stated, the test for contiguous spectrum operation shall be performed at BBW Channel CA, MBW Channel CA and TBW Channel CA defined as following:
– BBW Channel CA: aggregated repeater channel bandwidth located at the bottom of the supported frequency range in each operating band;
– MBW Channel CA: aggregated repeater channel bandwidth located close in the middle of the supported frequency range in each operating band;
– TBW Channel CA: aggregated repeater channel bandwidth located at the top of the supported frequency range in each operating band.
For repeater capable of multi-band operation, unless otherwise stated, the test shall be performed at BRFBW_T’RFBW and B’RFBW_TRFBW defined as following:
– BRFBW_T’RFBW: the repeater RF Bandwidths located at the bottom of the supported frequency range in the lowest operating band and at the highest possible simultaneous frequency position, within the Maximum Radio Bandwidth, in the highest operating band.
– B’RFBW_TRFBW: the repeater RF Bandwidths located at the top of the supported frequency range in the highest operating band and at the lowest possible simultaneous frequency position, within the Maximum Radio Bandwidth, in the lowest operating band.
NOTE: BRFBW_T’RFBW = B’RFBW_TRFBW = BRFBW_TRFBW when the declared Maximum Radio Bandwidth spans all operating bands. BRFBW_TRFBW means the repeater RF Bandwidths are located at the bottom of the supported frequency range in the lower operating band and at the top of the supported frequency range in the upper operating band.
When a test is performed by a test laboratory, the position of B, M and T for single carrier, BRFBW, MRFBW and TRFBW for single band operation, BBW Channel CA, MBW Channel CA and TBW Channel CA for contiguous spectrum operation in each supported operating band, the position of BRFBW_T’RFBW and B’RFBW_TRFBW in the supported operating band combinations shall be specified by the laboratory. The laboratory may consult with operators, the manufacturer or other bodies.
4.9.2 Test models
4.9.2.1 General
The following clauses will describe the FR1 test models needed for repeater type 1-C.
4.9.2.2 FR1 test models for repeater type 1-C for DL
FR1 test model in clause 4.9.2.2 in TS 38.141-1[13] applies to repeater type 1-C as below:
NR-FR1-TM1.1 applies to RDL-FR1-TM1.1
NR-FR1-TM1.2 applies to RDL-FR1-TM1.2
NR-FR1-TM2 applies to RDL-FR1-TM2
NR-FR1-TM2a applies to RDL-FR1-TM2a
NR-FR1-TM3.1 applies to RDL-FR1-TM3.1
NR-FR1-TM3.1a applies to RDL-FR1-TM3.1a
NR-FR1-TM3.2 applies to RDL-FR1-TM3.2
NR-FR1-TM3.3 applies to RDL-FR1-TM3.3
Testing models applying to NB-IoT operation in clause 4.9.2.2 in TS 38.141-1[13] are not applicable to repeaters.
4.9.2.3 FR1 test models for repeater type 1-C for UL
4.9.2.3.1 General
The set-up of physical channels for transmitter tests shall be according to one of the FR1 test models (R‑TMs) below. A reference to the applicable test model is made within each test.
The following general parameters are used by all repeater test models:
– Duration is 2 radio frames for TDD (20 ms)
– The slots are numbered 0 to 10×2µ – 1 where µ is the numerology corresponding to the subcarrier spacing
– NRB is the maximum transmission bandwidth configuration seen in clause 5.3.2 in TS 38.106 [x].
– Normal CP
– Virtual resource blocks of localized type
Repeater test models are derived based on the uplink/downlink configuration as shown in the table 4.9.2.2.1-1 using information element TDD-UL-DL-ConfigCommon as defined in TS 38.331 [14].
Table 4.9.2.3.1-1: Configurations of TDD for repeater type 1-C test models
|
Field name |
Value |
||
|
referenceSubcarrierSpacing (kHz) |
15 |
30 |
60 |
|
Periodicity (ms) for dl-UL-TransmissionPeriodicity |
5 |
5 |
5 |
|
nrofDownlinkSlots |
3 |
7 |
14 |
|
nrofDownlinkSymbols |
10 |
6 |
12 |
|
nrofUplinkSlots |
1 |
2 |
4 |
|
nrofUplinkSymbols |
2 |
4 |
8 |
Common physical channel parameters for all repeater FR1 test models are specified in table 4.9.2.3.1-2 and table 4.9.2.3.1-3 for PUSCH. Specific physical channel parameters for repeater FR1 test models are described in clauses 4.9.2.3.2 to 4.9.2.3.5.
Table 4.9.2.3.1-2: Common physical channel parameters for PUSCH for repeater type 1-C test models
|
Parameter |
Value |
|
Mapping type |
PUSCH mapping type A |
|
dmrs-TypeA-Position for the first DM-RS symbol |
pos2 |
|
dmrs-AdditionalPosition for additional DM-RS symbol(s) |
Pos1 |
|
dmrs-Type for comb pattern |
Configuration type 1 |
|
maxLength |
1 |
|
Ratio of PUSCH EPRE to DM-RS EPRE |
0 dB |
Table 4.9.2.3.1-3: Common physical channel parameters for PUSCH by RNTI for repeater type 1-C test models
|
Parameter |
Value |
|
PUSCH
|
|
4.9.2.3.2 FR1 test model 1.1 (RUL-FR1-TM1.1)
This model shall be used for tests on:
– Repeater output power-
– Out of band gain
– Unwanted emissions
– ACLR
– Operating band unwanted emissions
– Transmitter spurious emissions
– Transmitter intermodulation
– Receiver spurious emissions
– Input intermodulation
– Output intermodulation
– ACRR
– Transmitter OFF power
Common physical channel parameters are defined in clause 4.9.2.3.1. Specific physical channel parameters for RUL-FR1-TM1.1 are defined in table 4.9.2.3.2-1.
Table 4.9.2.2.2-1: Specific physical channel parameters of RUL-FR1-TM1.1
|
Parameter |
Value |
|
# of PRBs PUSCH |
NRB |
|
Modulation PUSCH |
QPSK |
4.9.2.3.3 FR1 test model 2 (RUL-FR1-TM2)
This model shall be used for tests on:
– Transmitted signal quality
– Uplink EVM of single 64QAM PRB allocation (at lower PSD TX power limit at min power)- Frequency stability (at min power)
Common physical channel parameters are defined in clause 4.9.2.3.1. Specific physical channel parameters for R-UL-FR1-TM2 are defined in table 4.9.2.3.3-1.
Table 4.9.2.3.3-1: Specific physical channel parameters of R-FR1-TM2
|
Parameter |
Value |
||||||||||||
|
# of 64QAM PUSCH PRBs |
1 |
||||||||||||
|
Level of boosting (dB) |
0 |
||||||||||||
|
Location of 64QAM PRB |
|
||||||||||||
|
# of PUSCH PRBs which are not allocated |
 |
4.9.2.3.3a FR1 test model 2a (RUL-FR1-TM2a)
This model shall be used for tests on:
– Uplink EVM of single 256QAM PRB allocation (at min power)
– Frequency stability (at min power)
Common physical channel parameters are defined in clause 4.9.2.3.3. Physical channel parameters and numbers of the allocated PRB are defined in table 4.9.2.3.3-1 with all 64QAM PUSCH PRBs replaced by 256QAM PUSCH PRBs.
4.9.2.3.4 FR1 test model 3.1 (RUL-FR1-TM3.1)
This model shall be used for tests on:
– Transmitted signal quality
– Frequency stability (at max power)
– Uplink EVM for modulation (at max power)
Common physical channel parameters are defined in clause 4.9.2.3.1. Physical channel parameters are defined in table 4.9.2.3.2-1 with all QPSK PUSCH PRBs replaced with selected modulation order PUSCH PRBs according to the corresponding test procedure.
4.9.2.3.5 FR1 test model 3.1a (RUL-FR1-TM3.1a)
This model shall be used for tests on:
– Transmitted signal quality
– Frequency stability (at max power)
– Uplink EVM for 256QAM modulation (at max power)
Common physical channel parameters are defined in clause 4.9.2.3.1. Physical channel parameters are defined in table 4.9.2.3.2-1 with all QPSK PUSCH PRBs replaced by 256QAM PUSCH PRBs.
4.9.2.4 Data content of Physical channels and Signals for RUL-FR1-TM
4.9.2.4.1 General
Randomisation of the data content is obtained by utilizing a PN sequence generator and the length-31 Gold sequence scrambling of TS 38.211 [9], clause 5.2.1 which is invoked by all physical channels prior to modulation and mapping to the RE grid.
Initialization of the scrambler and RE-mappers as defined in TS 38.211 [9] use the following additional parameters:
– 
, Physical layer cell identity = 1 is used as the default physical layer cell identity
– q = 0 (single code word)
– Rank 1, single layer
4.9.2.4.2 PUSCH
– Generate the required amount of bits from the output of the PN23 sequence generator [15]. The PN sequence generator is initialized with a starting seed of "all ones" in the first allocated slot of each frame. The PN sequence is continuous over the slot boundaries.
– Perform user specific scrambling according to TS 38.211 [9], clause 6.3.1.1.
– Perform modulation of the scrambled bits with the modulation scheme defined for each user according to TS 38.211 [9], clause 6.3.1.2
–
– Perform mapping of the complex-valued symbols to layer according to TS 38.211 [9], clause 6.3.1.3.
– Perform PUSCH mapping according to TS 38.211 [9] using parameters listed in table 4.9.2.3-2.
– DM-RS sequence generation according to TS 38.211 [9], clause 6.4.1.1.1 where l is the OFDM symbol number within the slot with the symbols indicated by table 4.9.2.2-3.
–
–
– DM-RS mapping according to TS 38.211 [9], clause 6.4.1.1.3 using parameters listed in table 4.9.2.2-3.
4.10 Requirements for contiguous and non-contiguous spectrum
A spectrum allocation where a repeater operates can either be contiguous or non-contiguous. Unless otherwise stated, the requirements in the present specification apply for repeater configured for both contiguous spectrum operation and non-contiguous spectrum operation.
For repeater operation in non-contiguous spectrum, some requirements apply both at the repeater passband edges and inside the sub-block gaps. For each such requirement, it is stated how the limits apply relative to the repeater passband edges and the sub-block edges respectively.
4.11 Requirements for repeater capable of multi-band operation
For multi-band connector the conducted test requirements in clause 6 and 7 apply separately to each supported operating band unless otherwise stated. For some conducted test requirements, it is explicitly stated that specific additions or exclusions to the requirement apply at multi-band connector(s) as detailed in the requirement clause. For repeater capable of multi-band operation, various structures in terms of combinations of different transceivers in downlink and transceivers in uplink implementations (multi-band or single band) with mapping of transceivers to one or more antenna connectors for repeater type 1-C in different ways are possible. For multi-band connector(s) the exclusions or provisions for multi-band apply. For single-band connector(s), the following applies:
– Single-band transmitter spurious emissions, operating band unwanted emissions, ACLR, output intermodulation, ACRR and receiver spurious emissions requirements apply to this connector that is mapped to single-band.
– If the repeater is configured for single-band operation, single-band requirements shall apply to this connector configured for single-band operation and no exclusions or provisions for multi-band capable repeater are applicable. Single-band requirements are tested separately at the connector configured for single-band operation, with all other connectors terminated.
For multi-band connectors supporting the bands for TDD, the RF requirements in the present specification assume no simultaneous uplink and downlink occur between the bands.
NOTE 1: The conducted test requirements for multi-band connectors supporting bands for both FDD and TDD are not covered by the present release of this specification.
4.12 Format and interpretation of tests
Each test 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 clause 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. Required manufacturer declarations may be included here.
X.2 Minimum requirement
This clause contains the reference to the clause to the 3GPP reference (or core) specification which defines the minimum requirement.
X.3 Test purpose
This clause defines the purpose of the test.
X.4 Method of test
X.4.1 General
In some cases there are alternative test procedures or initial conditions. In such cases, guidance for which initial conditions and test procedures can be applied are stated here. In the case only one test procedure is applicable, that is stated here.
X.4.2y First test method
X.4.2y.1 Initial conditions
This clause defines the initial conditions for each test, including the test environment, the RF channels to be tested and the basic measurement set-up.
X.4.2y.2 Procedure
This clause describes the steps necessary to perform the test and provides further details of the test definition like domain (e.g. frequency-span), range, weighting (e.g. bandwidth), and algorithms (e.g. averaging). The procedure may comprise data processing of the measurement result before comparison with the test requirement (e.g. average result from several measurement positions).
X.4.3y Alternative test method (if any)
If there are alternative test methods, each is described with its initial conditions and procedures.
X.5 Test requirement
This clause defines the pass/fail criteria for the equipment under test, see clause 4.1.3 (Interpretation of measurement results). Test requirements for every minimum requirement referred in clause X.2 are listed here. Cases where minimum requirements do not apply need not be mentioned.