6.2 Base Station output power

37.1413GPPMulti-Standard Radio (MSR) Base Station (BS) conformance testingNR, E-UTRA, UTRA and GSM/EDGERelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

6.2.1 Base Station maximum output power

6.2.1.1 Definition and applicability

Output power of the Base Station is the mean power delivered to a load with resistance equal to the nominal load impedance of the transmitter.

The maximum total output power, P_max, of the Base Station is the mean power level measured at the antenna connector during the transmitter ON period in a specified reference condition.

The maximum RAT output power, P_max,RAT, of the Base Station is the mean power level measured at the antenna connector during the transmitter ON period for a specific RAT in a specified reference condition.

The maximum carrier output power, P_max,c of the Base Station is the mean power level measured at the antenna connector during the transmitter ON period for a specific carrier in a specified reference condition.

The rated carrier output power, P_Rated,c, of the base station is the mean power level for a specific carrier that the manufacturer has declared to be available at the antenna connector during the transmitter ON period.

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 B.

The rated carrier output power of the BS shall be as specified in Table 6.2-1.

Table 6.2-1: Base Station rated carrier output power

BS class	P_Rated,c
Wide Area BS	(note)
Medium Range BS	≤+ 38 dBm
Local Area BS	≤+ 24 dBm
NOTE: There is no upper limit for the rated carrier output power of the Wide Area Base Station.

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.

6.2.1.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 6.2.1.

6.2.1.2A Additional requirement (regional)

The additional requirement is in TS 37.104 [2] clause 6.2.2.

6.2.1.3 Test purpose

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

6.2.1.4 Method of test

6.2.1.4.1 Initial conditions

Test environment: normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: B_RFBW, M_RFBW and T_RFBW in single-band operation, see clause 4.9.1; B_RFBW_T’_RFBW and B’_RFBW_T_RFBW in multi-band operation, see clause 4.9.1.

In addition, a single test shall be performed under extreme power supply conditions as defined in Annex B.5. In this case, it is sufficient to test on a single combination of one ARFCN, UARFCN, E-ARFCN or NR-ARFCN, one Base Station RF Bandwidth position and with only one applicable test configuration defined in clause 5.

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

Connect the power measuring equipment to the MSR Base Station antenna connector as shown in Annex D.1.1.

6.2.1.4.2 Procedure

1) Set the Base Station to transmit at maximum power according to the applicable test configuration in clause 5 using the corresponding test models or set of physical channels in clause 4.9.2.

2) Measure the mean power for each carrier at the Base Station 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 SBT or MBT shall be terminated.

6.2.1.5 Test requirements

In normal conditions, the measurement result in step 2 of clause 6.2.1.4.2 shall for UTRA, E-UTRA and NR remain:

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

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

and for GSM/EDGE and NB-IoT remain within +3.0 dB and ‑3.0 dB of the manufacturer’s rated carrier output power.

In extreme conditions, measurement result in step 2 of clause 6.2.1.4.2 shall for UTRA, E-UTRA and NR remain:

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

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

and for GSM/EDGE and NB-IoT remain within +3.5 dB and –3.5 dB of the manufacturer’s rated carrier output power.

6.2.2 E-UTRA DL RS power

6.2.2.1 Definition and applicability

E-UTRA DL RS power is the resource element power of Downlink Reference Symbol.

The absolute DL RS power is indicated on the DL-SCH. The absolute accuracy is defined as the maximum deviation between the DL RS power indicated on the DL-SCH and the DL RS power at the BS antenna connector.

6.2.2.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 6.2.3.

6.2.2.3 Test purpose

The test purpose is to verify that the E-UTRA DL RS power is within the limits specified by the minimum requirement.

6.2.2.4 Method of test

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 6.5.4.4.

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

– For multi-band capable BS and single band tests, repeat the tests per involved band where single carrier 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 shall be terminated.

6.2.2.5 Test requirements

The test requirement for DL RS power is specified in TS 36.141 [9], clause 6.5.4.5.

6.2.3 UTRA FDD primary CPICH power

6.2.3.1 Definition and applicability

UTRA FDD primary CPICH power is the code domain power of the Common Pilot Channel. Primary CPICH power is indicated on the BCH. CPICH power accuracy is defined as the maximum deviation between the Primary CPICH code domain power indicated on the BCH and the Primary CPICH code domain power measured at the TX antenna interface.

6.2.3.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 6.2.4.

6.2.3.3 Test purpose

The test purpose is to verify that the UTRA FDD primary CPICH power is within the limits specified by the minimum requirement.

6.2.3.4 Method of test

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 6.2.2.4.

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

– For multi-band capable BS and single band tests, repeat the tests 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 shall be terminated.

6.2.3.5 Test requirements

For UTRA FDD the test requirement for CPICH power is specified in TS 25.141 [10], clause 6.2.2.5.

6.2.3A UTRA FDD secondary CPICH power

6.2.3A.1 Definition and applicability

UTRA FDD secondary CPICH power is the code domain power of the Secondary Common Pilot Channel. Secondary CPICH power is equal to the sum of the Primary CPICH power and the power offset, which are signalled to the UE. Secondary CPICH power accuracy is defined as the maximum deviation of the relevant IE between the Primary CPICH power transmitted at the first antenna connector and the Secondary CPICH power transmitted at the second antenna connector.

6.2.3A.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 6.2.4A.

6.2.3A.3 Test purpose

The test purpose is to verify that the UTRA FDD secondary CPICH power is within the limits specified by the minimum requirement.

6.2.3A.4 Method of test

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 6.2.3.4.

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

6.2.3A.5 Test requirements

For UTRA FDD the test requirement for CPICH power is specified in TS 25.141 [10], clause 6.2.3.5.

6.2.4 UTRA TDD primary CCPCH power

6.2.4.1 Definition and applicability

UTRA TDD primary CCPCH power is the code domain power of the Primary Common Control Physical Channel averaged over the transmit timeslot. Primary CCPCH power is signalled on the BCH.

UTRA TDD differential accuracy of the Primary CCPCH power is the relative transmitted power accuracy of PCCPCH in consecutive frames when the nominal PCCPCH power is not changed.

6.2.4.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 6.2.5.

6.2.4.3 Test purpose

The test purpose is to verify that the UTRA TDD primary CCPCH power and differential accuracy of Primary CCPCH power are within the limits specified by the minimum requirement.

6.2.4.4 Method of test

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 25.142, the methods of test are specified in TS 25.142 [12], clause 6.4.5.4 and 6.4.6.4 respectively.

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

6.2.4.5 Test requirements

For UTRA TDD, the test requirement for primary CCPCH power and the differential accuracy of Primary CCPCH power are specified in TS 25.142 [12], clause 6.4.5.5 and 6.4.6.5, respectively.

6.2.5 NB-IoT DL NRS power

6.2.5.1 Definition and applicability

For NB-IoT, DL NRS power is the resource element power of the Downlink Narrow-band Reference Signal.

The absolute DL NRS power is indicated on the DL-SCH. The absolute accuracy is defined as the maximum deviation between the DL NRS power indicated on the DL-SCH and the DL NRS power of each NB-IoT carrier at the BS antenna connector.

6.2.5.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 6.2.6.

6.2.5.3 Test purpose

The test purpose is to verify that the NB-IoT DL NRS power is within the limits specified by the minimum requirement.

6.2.5.4 Method of test

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 6.5.4.4.

6.2.5.5 Test requirements

The test requirement for DL RS power is specified in TS 36.141 [9], clause 6.5.4.5.