6.2 Base station output power

36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS

6.2.1 Definition and applicability

Output power, Pout, of the base station is the mean power of one carrier delivered to a load with resistance equal to the nominal load impedance of the transmitter.

Rated total output power (Prated,t) of the base station is the mean power for BS operating in single carrier, multi-carrier, or carrier aggregation configurations that the manufacturer has declared to be available at the antenna connector during the transmitter ON period.

Base station maximum output power (Pmax,c), of the base station is the mean power level per carrier measured at the antenna connector during the transmitter ON period in a specified reference condition.

Rated output power (Prated,c), of the base station is the mean power level per carrier for BS operating in single carrier, multi-carrier, or carrier aggregation configurations that the manufacturer has declared to be available at the antenna connector during the transmitter ON period.

NOTE: Different Prated,c may be declared for different configurations.

NOTE: For NB-IoT in-band and guard band operation, the LTE carrier and NB-IoT carrier shall be seen as a single carrier occupied LTE channel bandwidth, the output power over this carrier is shared between LTE and NB-IoT. This note is applied for Pout, Rated total output power, Pmax,c and Prated,c.

In certain regions, the minimum requirement for normal conditions may apply also for some conditions outside the ranges defined for the Normal test environment in Annex D.

The rated output power, Prated,c, of the BS shall be as specified in Table 6.2.1-1

Table 6.2.1-1: Base Station rated output power

BS class

Prated,c

Wide Area BS

(note)

Medium Range BS

< + 38 dBm

Local Area BS

< + 24 dBm

Home BS

< + 20 dBm (for one transmit antenna port)

< + 17 dBm (for two transmit antenna ports)

< + 14 dBm (for four transmit

antenna ports)

< + 11 dBm (for eight transmit antenna ports)

NOTE: There is no upper limit required for the rated output power of the Wide Area Base Station.

In addition for Band 46 operation, the BS may have to comply with the applicable BS power limits established regionally, when deployed in regions where those limits apply and under the conditions declared by the manufacturer. The regional requirements may be in the form of conducted power, power spectral density, EIRP and other types of limits. In case of regulatory limits based on EIRP, assessment of the EIRP level is described in Annex H of TS 36.104 [2].

In addition for Band 49 operation in US, the BS EIRP power limit established by FCC for Category A CBSDs (Citizens Broadband Radio Service Devices) applies. Assessment of the EIRP level is described in Annex H of TS 36.104 [2].

In addition for Band 85 NB-IoT standalone operation, the BS rated output power limit of 43 dBm applies over the NB-IoT carriers in the range 728-729 MHz of the DL operating band. The BS output power limit of 43 dBm shall be considered as shared among all NB-IoT carriers in the 728-729 MHz frequency range or as the maximum value per NB-IoT carrier in the case where only one NB-IoT carrier is deployed in 728-729 MHz frequency range.

6.2.2 Minimum Requirement

The minimum requirement is in TS 36.104 [2] subclause 6.2.

6.2.3 Test purpose

The test purpose is to verify the accuracy of the maximum output power across the frequency range and under normal and extreme conditions for all transmitters in the BS.

6.2.4 Method of test

6.2.4.1 Initial conditions

Test environment: normal; see Annex D2.

RF channels to be tested for single carrier: B, M and T; see subclause 4.7

Base Station RF Bandwidth positions to be tested for multi-carrier and/or CA: BRFBW, MRFBW and TRFBW in single-band operation, see subclause 4.7.1; BRFBW_T’RFBW and B’RFBW_TRFBW in multi-band operation, see subclause 4.7.1.

In addition, on one RF channel or Base Station RF Bandwidth position in case of multi-carrier and/or CA only, the test shall be performed under extreme power supply as defined in Annex D.5.

NOTE: Tests under extreme power supply also test extreme temperature.

1) Connect the power measuring equipment to the base station antenna connector as shown in Annex I.1.1.

6.2.4.2 Procedure

1) For an E-UTRA BS declared to be capable of single carrier operation only, set the base station to transmit a signal according to E-TM1.1.

For an E-UTRA BS declared to be capable of multi-carrier and/or CA operation, set the base station to transmit according to E-TM1.1 on all carriers configured using in the applicable test configuration and corresponding power setting specified in clause 4.10 and 4.11.

– For an E-UTRA BS declared to be capable of NB-IoT in-band operation, start transmission according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power using the applicable test configuration and corresponding power setting specified in clause 4.10 and 4.11.

– For an E-UTRA BS declared to be capable of NB-IoT guard-band operation, start transmission according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power using the applicable test configuration and corresponding power setting specified in clause 4.10 and 4.11..

– For a NB-IoT BS declared to be capable of single carrier operation, start transmission according to N-TM at manufacturer’s declared rated output power.

– For a NB-IoT BS declared to be capable of multi-carrier operation, set the base station to transmit according to N-TM on all carriers configured using in the applicable test configuration and corresponding power setting specified in clause 4.10 and 4.11.

– For an E-UTRA and NB-IoT standalone BS declared to be capable of multi-carrier operation, start transmission according to E-TM1.1 on all E-UTRA carriers and N-TM on all NB-IoT carriers configured using in the applicable test configuration and corresponding power setting specified in clause 4.10 and 4.11.

2) Measure the mean power for each carrier at the antenna connector.

In addition, for a multi-band capable BS, the following step shall apply:

3) For multi-band capable BS and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band. For multi-band capable BS with separate antenna connector, the antenna connector not being under test in case of single-band or multi-band test shall be terminated.

6.2.5 Test Requirements

In normal conditions, for E-UTRA the measurement result in step 2 of 6.2.4.2 shall remain:

within +2.7 dB and –2.7 dB of the manufacturer’s rated output power, Prated,c, for carrier frequency f ≤ 3.0GHz.

within +3.0 dB and –3.0 dB of the manufacturer’s rated output power, Prated,c, for carrier frequency 3.0GHz < f ≤ 4.2GHz.

In extreme conditions, for E-UTRA measurement result in step 2 of 6.2.4.2 shall remain:

within +3.2 dB and –3.2 dB of the manufacturer’s rated output power, Prated,c, for carrier frequency f ≤ 3.0GHz.

within +3.5 dB and –3.5 dB of the manufacturer’s rated output power, Prated,c, for carrier frequency 3.0GHz < f ≤ 4.2GHz.

In normal conditions, for standalone NB-IoT the measurement result in step 2 of 6.2.4.2 shall remain:

within +3.0 dB and –3.0 dB of the manufacturer’s rated output power, Prated,c

In extreme conditions, for standalone NB-IoT measurement result in step 2 of 6.2.4.2 shall remain:

within +3.5 dB and –3.5 dB of the manufacturer’s rated output power, Prated,c

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance are given in Annex G.

6.2.6 Home BS output power for adjacent UTRA channel protection

6.2.6.1 Definition and applicability

The E-UTRA or NB-IoT Home BS shall be capable of adjusting the transmitter output power to minimize the interference level on the adjacent channels licensed to other operators in the same geographical area while optimize the Home BS coverage. These requirements are only applicable to Home BS. The requirements in this clause are applicable for AWGN radio propagation conditions.

The output power, Pout, of the Home BS shall be as specified in Table 6.2.6-1 under the following input conditions:

– CPICH Êc, measured in dBm, is the code power of the Primary CPICH on one of the adjacent channels present at the Home BS antenna connector for the CPICH received on the adjacent channels. If Tx diversity is applied on the Primary CPICH, CPICH Êc shall be the sum in [W] of the code powers of the Primary CPICH transmitted from each antenna.

– Ioh, measured in dBm, is the total received power density, including signals and interference but excluding the own Home BS signal, present at the Home BS antenna connector on the Home BS operating channel.

In case that both adjacent channels are licensed to other operators, the most stringent requirement shall apply for Pout. In the case when one of the adjacent channels is licensed to an E-UTRA operator while the other adjacent channel is licensed to a UTRA operator, the more stringent requirement of this subclause and subclause 6.2.7 shall apply for Pout. In case the Home BS’s operating channel and both adjacent channels are licensed to the same operator, the requirements of this clause do not apply.

The input conditions defined for the requirements in this clause are specified at the antenna connector of the Home BS. For Home BS receivers with diversity, the requirements apply to each antenna connector separately, with the other one(s) terminated or disabled. The requirements are otherwise unchanged. For Home BS(s) without measurement capability, a reference antenna with a gain of 0 dBi is assumed for converting these power levels into field strength requirements.

Table 6.2.6-1: Home BS output power for adjacent operator UTRA channel protection

Input Conditions

Output power, Pout

Ioh > CPICH Êc + 43 dB

And CPICH Êc ≥ -105dBm

≤ 10 dBm

Ioh ≤ CPICH Êc + 43 dB

and CPICH Êc ≥ -105dBm

≤ max(8 dBm, min(20 dBm, CPICH Êc + 100 dB))

NOTE 1: The Home BS transmitter output power specified in Table 6.2.6-1 assumes a Home BS reference antenna gain of 0 dBi, an target outage zone of 47dB around the Home BS for an UE on the adjacent channel, with an allowance of 2 dB for measurement errors, an ACIR of 33 dB, an adjacent channel UE CPICH Ec/Io target of -18 dB and the same CPICH Êc value at the adjacent channel UE as for the Home BS.

NOTE 2: For CPICH Êc < -105 dBm, the requirements in subclause 6.2 apply.

NOTE 3: The output power Pout is the sum transmit power across all the antenna connectors of the Home BS, with each transmit power measured at the respective antenna connectors.

6.2.6.2 Minimum Requirement

The minimum requirement is in TS 36.104 [2] subclause 6.2.3.

6.2.6.3 Test purpose

The test purpose is to verify the capability of the Home BS to adjust the transmitter output power according to the input conditions, as specified in Table 6.2.6-1, across the frequency range and under normal and extreme conditions for all transmitters in the BS.

6.2.6.4 Method of test

6.2.6.4.1 Initial conditions

Test environment: normal; see Annex D2.

RF channels to be tested for single carrier: M; see subclause 4.7.

In addition, on one UARFCN only, the test shall be performed under extreme power supply as defined in Annex D.5.

NOTE: Tests under extreme power supply also test extreme temperature.

Signal generators delivering co-channel and adjacent channel interferers are switched off.

1) Set-up the equipment as shown as shown in Annex I.1.4.

2) The Home BS is configured such that the adjacent channel is known to belong to another operator.

6.2.6.4.2 Procedure

1) Connect the combined downlink interfering signals (referred to as point D in Figure I.1-4) to the dedicated measurement port (referred to as point 1 in Figure I.1-4) if available, otherwise connect to point 2.

2) Configure the signal generator for co-channel interference to transmit AWGN over a bandwidth according to BWConfig centred on RF channel M.

3) Configure the signal generator for adjacent channel DL signal to transmit test model 1 in subclause 6.1.1.1 in [17] at the centre frequency equal to RF channel M + BWChannel /2 + 2.5 MHz.

4) Switch on signal generators delivering co-channel and adjacent channel interferers, and adjust the ATT1 and ATT2 such that CPICH Êc = -80 dBm and Ioh = -50 dBm.

5) Trigger the Home BS power adjustment mechanism.

6) Configure the E-UTRA Home BS to transmit a signal according to E-TM1.1. Configure the E-UTRA Home BS declared to be capable of NB-IoT in-band operation to transmit a signal according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power. Configure the E-UTRA Home BS declared to be capable of NB-IoT guard-band operation to transmit a signal according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power. Configure the NB-IoT Home BS to transmit a signal according to N-TM at manufacturer’s declared rated output power.

NOTE: The signal shall be transmitted with the maximum allowed output power.

7) Measure Home BS output power, Pout, and check it is below the required value according to the CPICH Êc and Ioh values determined in step 4.

8) Repeat steps 3) to 7) with the frequency in step 3 set to RF channel M – BWChannel /2 – 2.5 MHz.

9) Repeat steps 3) to 8) with different settings for ATT1 and ATT2 to arrive the CPICH Êc and Ioh pairs as specified in Table 6.2.6-2.

Table 6.2.6-2: CPICH Êc and Ioh pairs

Test Case

CPICH Êc (dBm)

Ioh (dBm)

2

-90

-60

3

-100

-70

4

-100

-50

6.2.6.5 Test Requirements

In normal operating conditions, the output power, Pout, of the Home BS shall be equal to or less than:

the value specified in Table 6.2.6-1 plus 2.7 dB for carrier frequency f ≤ 3.0GHz.

the value specified in Table 6.2.6-1 plus 3.0 dB for carrier frequency 3.0GHz < f ≤ 4.2GHz.

In extreme operating conditions, the output power, Pout, of the Home BS shall be equal to or less than:

the value specified in Table 6.2.6-1 plus 3.2 dB for carrier frequency f ≤ 3.0GHz.

the value specified in Table 6.2.6-1 plus 3.5 dB for carrier frequency 3.0GHz < f ≤ 4.2GHz.

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance are given in Annex G.

6.2.7 Home BS output power for adjacent E-UTRA channel protection

6.2.7.1 Definition and applicability

The E-UTRA or NB-IoT Home BS shall be capable of adjusting the transmitter output power to minimize the interference level on the adjacent channels licensed to other operators in the same geographical area while optimize the Home BS coverage. These requirements are only applicable to Home BS. The requirements in this clause are applicable for AWGN radio propagation conditions.

The output power, Pout, of the Home BS shall be as specified in Table 6.2.7-1 under the following input conditions:

– CRS Ês, measured in dBm, is the Reference Signal Received Power per resource element on one of the adjacent channels present at the Home BS antenna connector for the Reference Signal received on the adjacent channels. For CRS Ês determination, the cell-specific reference signal R0 according TS 36.211 [12] shall be used. If the Home BS can reliably detect that multiple TX antennas are used for transmission on the adjacent channel, it may use the average in [W] of the CRS Êc on all detected antennas.

– Ioh, measured in dBm, is the total received power density, including signals and interference but excluding the own Home BS signal, present at the Home BS antenna connector on the Home BS operating channel.

In case that both adjacent channels are licensed to other operators, the most stringent requirement shall apply for Pout. In the case when one of the adjacent channels is licensed to an E-UTRA operator while the other adjacent channel is licensed to a UTRA operator, the more stringent requirement of this subclause and subclause 6.2.6 shall apply for Pout. In case the Home BS’s operating channel and both adjacent channels are licensed to the same operator, the requirements of this clause do not apply.

The input conditions defined for the requirements in this clause are specified at the antenna connector of the Home BS. For Home BS receivers with diversity, the requirements apply to each antenna connector separately, with the other one(s) terminated or disabled. The requirements are otherwise unchanged. For Home BS(s) without measurement capability, a reference antenna with a gain of 0 dBi is assumed for converting these power levels into field strength requirements.

Table 6.2.7-1: Home BS output power for adjacent operator E-UTRA channel protection

Input Conditions

Output power, Pout

Ioh > CRS Ês + + 30 dB

and CRS Ês ≥ -127dBm

≤ 10 dBm

Ioh ≤ CRS Ês + + 30 dB

and CRS Ês ≥ -127dBm

≤ max(8 dBm, min(20 dBm, CRS Ês + + 85 dB))

NOTE 1: The Home BS transmitter output power specified in Table 6.2.7-1 assumes a Home BS reference antenna gain of 0 dBi, an target outage zone of 47dB around the Home BS for an UE on the adjacent channel, with an allowance of 2 dB for measurement errors, an ACIR of 30 dB, an adjacent channel UE Ês/Iot target of -6 dB and the same CRS Ês value at the adjacent channel UE as for the Home BS.

NOTE 2: For CRS Ês < -127 dBm, the requirements in subclause 6.2 apply.

NOTE 3: The output power Pout is the sum transmit power across all the antenna connectors of the Home BS, with each transmit power measured at the respective antenna connectors.

NOTE 4: is the number of downlink resource blocks in the own Home BS channel.

NOTE 5: is the number of subcarriers in a resource block, .

6.2.7.2 Minimum Requirement

The minimum requirement is in TS 36.104 [2] subclause 6.2.4.

6.2.7.3 Test purpose

The test purpose is to verify the capability of the Home BS to adjust the transmitter output power according to the input conditions, as specified in Table 6.2.7-1, across the frequency range and under normal and extreme conditions for all transmitters in the BS.

6.2.7.4 Method of test

6.2.7.4.1 Initial conditions

Test environment: normal; see Annex D2.

RF channels to be tested for single carrier: M; see subclause 4.7.

In addition, on one EARFCN only, the test shall be performed under extreme power supply as defined in Annex D.5.

NOTE: Tests under extreme power supply also test extreme temperature.

Signal generators delivering co-channel and adjacent channel interferers are switched off.

1) Set-up the equipment as shown as shown in Annex I.1.4.

2) The Home BS is configured such that the adjacent channel is known to belong to another operator.

6.2.7.4.2 Procedure

1) Connect the combined downlink interfering signals (referred to as point D in Figure I.1-4) to the dedicated measurement port (referred to as point 1 in Figure I.1-4) if available, otherwise connect to point 2.

2) Configure the signal generator for co-channel interference to transmit AWGN over a bandwidth according to BWConfig centred on RF channel M.

3) Configure the signal generator for adjacent channel DL signal to transmit a signal according to E-TM1.1 at the centre frequency equal to RF channel M + BWChannel MHz.

4) Switch on signal generators delivering co-channel and adjacent channel interferers, and adjust the ATT1 and ATT2 such that CRS Ês = -65 – dBm and Ioh = -50 dBm.

5) Trigger the Home BS power adjustment mechanism.

6) Configure the E-UTRA Home BS to transmit a signal according to E-TM1.1. Configure the E-UTRA Home BS declared to be capable of NB-IoT in-band operation to transmit a signal according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power. Configure the E-UTRA Home BS declared to be capable of NB-IoT guard-band operation to transmit a signal according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power. Configure the NB-IoT Home BS to transmit a signal according to N-TM at manufacturer’s declared rated output power.

NOTE: The signal is transmitted with the maximum allowed output power.

7) Measure Home BS output power, Pout, and check it is below the required value according to the CRS Ês and Ioh values determined in step 4.

8) Repeat steps 3) to 7) with the frequency in step 3 set to RF channel M – BWChannel MHz.

9) Repeat steps 3) to 8) with different settings for ATT1 and ATT2 to arrive the CRS Ês and Ioh pairs as specified in Table 6.2.7-2.

Table 6.2.7-2: CRS Ês and Ioh pairs

Test Case

CRS Ês (dBm)

Ioh (dBm)

2

-75 –

-60

3

-90 –

-70

4

-90 –

-50

6.2.7.5 Test Requirements

In normal operating conditions, the output power, Pout, of the Home BS shall be equal to or less than:

– the value specified in Table 6.2.7-1 plus 2.7 dB for carrier frequency f ≤ 3.0GHz.

– the value specified in Table 6.2.6-1 plus 3.0 dB for carrier frequency 3.0GHz < f ≤ 4.2GHz.

In extreme operating conditions, the output power, Pout, of the Home BS shall be equal to or less than:

– the value specified in Table 6.2.7-1 plus 3.2 dB for carrier frequency f ≤ 3.0GHz.

– the value specified in Table 6.2.6-1 plus 3.5 dB for carrier frequency 3.0GHz < f ≤ 4.2GHz.

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance are given in Annex G.

6.2.8 Home BS output power for co-channel E-UTRA protection

6.2.8.1 Definition and applicability

To minimize the co-channel DL interference to non-CSG macro UEs operating in close proximity while optimizing the CSG Home BS coverage, Home BS may adjust its output power according to the requirements set out in this clause. These requirements are only applicable to Home BS. The requirements in this clause are applicable for AWGN radio propagation conditions.

For E-UTRA or NB-IoT Home BS that supports the requirements in this clause, the output power, Pout, of the Home BS shall be as specified in Table 6.2.8-1 under the following input conditions:

– CRS Ês, measured in dBm, is the Reference Signal Received Power per resource element present at the Home BS antenna connector received from the co-channel Wide Area BS. For CRS Ês determination, the cell-specific reference signal R0 according TS 36.211 [12] shall be used. If the Home BS can reliably detect that multiple TX antenna ports are used for transmission by the co-channel Wide Area Base Station, it may use the average in [W] of the CRS Ês on all detected TX antenna ports, including R0.

– Ioh, measured in dBm, is the total received DL power, including all interference but excluding the own Home BS signal, present at the Home BS antenna connector on the Home BS operating channel.

– Iob, measured in dBm, is the uplink received interference power, including thermal noise, within one physical resource block’s bandwidth of resource elements as defined in TS 36.214, present at the Home BS antenna connector on the Home BS operating channel.

The input conditions defined for the requirements in this clause are specified at the antenna connector of the Home BS. For Home BS receivers with diversity, the requirements apply to each antenna connector separately, with the other one(s) terminated or disabled. The requirements are otherwise unchanged. For Home BS(s) without measurement capability, a reference antenna with a gain of 0 dBi is assumed for converting these power levels into field strength requirements.

Table 6.2.8-1: Home BS output power for co-channel E-UTRA channel protection

Input Conditions

Output power, Pout

Ioh (DL) > CRS Ês + 10log10() + 30 dB

and

Option 1: CRS Ês ≥ -127 dBm or

Option 2: CRS Ês ≥ -127 dBm and Iob > -103 dBm

≤ 10 dBm

Ioh (DL) ≤ CRS Ês + 10log10() + 30 dB

and

Option 1: CRS Ês ≥ -127 dBm or

Option 2. CRS Ês ≥ -127 dBm and Iob > -103 dBm

≤ max (Pmin, min (Pmax,c, CRS Ês + 10log10() + X ))

30 dB ≤ X ≤ 70 dB

Pmin = – 10 dBm

Note 1: Only the option supported by the Home BS shall be tested.

Note 2: For CRS Ês < -127dBm, or Iob ≤ -103 dBm when Option 2 is supported, the requirements in clauses 6.2.1 and 6.2.2 apply.

Note 3: The output power Pout is the sum of transmits power across all the antennas of the Home BS, with each transmit power measured at the respective antenna connectors.

Note 4: is the number of downlink resource blocks in the own Home BS channel.

Note 5: is the number of subcarriers in a resource block, .

Note 6: X is a network configurable parameter.

Note 7: Pmin can be lower dependent on the Home BS total dynamic range.

Note8: Other input conditions and output power to be applied for network scenarios other than co-channel E-UTRA macro channel protection shall not be precluded.

6.2.8.2 Minimum Requirement

The minimum requirement is in TS 36.104 [2] subclause 6.2.5.

6.2.8.3 Test purpose

The test purpose is to verify the capability of the Home BS to adjust the transmitter output power according to the input conditions, as specified in Table 6.2.8-1, across the frequency range and under normal and extreme conditions for all transmitters in the BS. For Home BS that supports the requirements in this clause, only the option in Table 6.2.8-1 supported by the Home BS shall be tested.

6.2.8.4 Method of test

6.2.8.4.1 Initial conditions

Test environment: normal; see Annex D2.

RF channels to be tested for single carrier: M; see subclause 4.7.

In addition, on one EARFCN only, the test shall be performed under extreme power supply as defined in Annex D.5.

NOTE: Tests under extreme power supply also test extreme temperature.

Signal generator delivering co-channel interferers is switched off.

1) Set-up the equipment as shown in Annex I.1.5, base on the option supported by Home BS.

2) The co-channel interference should be configured containing at least signals from a neighbouring Marco BS. For option 2 of Table 6.2.8-1, additional signal generator needed to deliver the MUE UL signal.

6.2.8.4.2 Procedure

1) Connect the downlink co-channel interfering signals (referred to as point D in Figure I.1-5) to the dedicated measurement port (referred to as point 1 in Figure I.1-5) if available, otherwise connect to point 2. Specifically for option 2 of Table 6.2.8-1, connect the UL interference to point 2 for UL receiving on the figure of I.1.5-b.

2) Configure the signal generator for co-channel interference to transmit AWGN over a bandwidth according to BWConfig centred on RF channel M.

3) Configure the X as 30 dB. Switch on signal generators delivering interferers, and adjust the ATT such that CRS Ês = -10 -10log10() dBm and Ioh = -50 dBm.

4) Trigger the Home BS power adjustment mechanism.

5) Configure the E-UTRA Home BS to transmit a signal according to E-TM1.1. Configure the E-UTRA Home BS declared to be capable of NB-IoT in-band operation to transmit a signal according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power. Configure the E-UTRA Home BS declared to be capable of NB-IoT guard-band operation to transmit a signal according to E-TM1.1 with the NB-IoT PRB constructed according to N-TM at manufacturer’s declared rated output power. Configure the NB-IoT Home BS to transmit a signal according to N-TM at manufacturer’s declared rated output power.

NOTE: The signal is transmitted with the maximum allowed output power.

6) Measure Home BS output power, Pout, and check it is below the required value according to the CRS Ês and Ioh values determined in step 4. The value of Pmin for testing is -10dBm.

7) Repeat steps 4) to 6) with different settings for ATT to arrive the input parameter pairs as specified in Table 6.2.8-2 or 6.2.8-3, basing the option of Table 6.2.8-1supported by the Home BS.

Table 6.2.8-2: CRS Ês and Ioh pairs for option 1

Test Case

CRS Ês (dBm)

Ioh (dBm)

1

-20- 10log10()

-60

2

Pmin-30 -10log10()

-70

3

-90 – 10log10()

-50

Table 6.2.8-3: CRS Ês, Ioh and Iob pairs for option 2

Test Case

CRS Ês (dBm)

Ioh (dBm)

Iob (dBm)

1

-20 – 10log10()

-60

-98

2

Pmin-30 -10log10()

-70

-98

3

-90 – 10log10()

-50

-98

6.2.8.5 Test Requirements

In normal operating conditions, the output power, Pout, of the Home BS shall be equal to or less than the value specified in Table 6.2.8-1 plus 2.7 dB.

In extreme operating conditions, the output power, Pout, of the Home BS shall be equal to or less than the value specified in Table 6.2.8-1 plus 3.2 dB.

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance are given in Annex G.