6 Output power

25.1533GPPRelease 17TSUTRA repeater conformance testing (LCR TDD)

Output power, Pout, of the repeater is the mean power of one carrier at maximum repeater gain delivered to a load with resistance equal to the nominal load impedance of the transmitter.

Rated output power, PRAT, of the repeater is the mean power level per carrier at maximum repeater gain that the manufacturer has declared to be available at the antenna connector.

6.1 Definition and applicability

Maximum output power, Pmax, of the repeater is the mean power level per carrier measured at the antenna connector in specified reference condition.

6.2 Minimum Requirements

The requirements shall apply at maximum gain, with LCR TDD signals in the pass band of the repeater, at levels that produce the maximum rated output power per channel.

When the power of all signals is increased by 10 dB, compared to the power level that produce the maximum rated output power, the requirements shall still be met.

In normal conditions, the Repeater maximum output power shall remain within limits specified in Table 6.1 relative to the manufacturer’s rated output power.

Table 6.1: Repeater output power; normal conditions

Rated output power	Limit
P  31 dBm	+2 dB and -2 dB
P < 31 dBm	+3 dB and -3 dB

In extreme conditions, the Repeater maximum output power shall remain within the limits specified in Table 6.2 relative to the manufacturer’s rated output power.

Table 6.2: Repeater output power; extreme conditions

Rated output power	Limit
P  31 dBm	+2,5 dB and -2,5 dB
P < 31 dBm	+4 dB and -4 dB

In certain regions, the minimum requirement for normal conditions may apply also for some conditions outside the ranges of conditions defined as normal.

6.3 Test purpose

To verify that the Repeater maximum output power is within the limit specified in 6.1.2.

6.4 Method of test

6.4.1 Initial conditions

1) Set-up the equipment as shown in annex A.

2) Connect the signal generator equipment to the Repeater input port.

3) Connect the power measuring equipment to the Repeater output port.

6.4.2 Procedure

1) Set the signal generator to transmit a signal according to table 6.3.

Table 6.3: Parameters of the transmitted signal for output power test

Parameter	Value/description
TDD Duty Cycle	TS i; i = 0, 1, 2, 3, 4, 5, 6: transmit, if i is 0,4,5,6; receive, if i is 1,2,3.
Time slots under test	TS4, TS5 and TS6
output power setting	PRAT
Number of DPCH in each time slot under test	8
Power of each DPCH	1/8 of Base Station output power
Data content of DPCH	real life (sufficient irregular)

2) Adjust the input power to the Repeater to create the maximum nominal Repeater output power at maximum gain.

3) Measure the mean power at the RF output port over a certain slot.

4) Increase the power with 10 dB compare to the level obtained in step 2.

5) Measure the mean power at the RF output port over a certain slot.

In addition, on one UARFCN only, the test shall be performed under extreme power supply as defined in subclause 5.4.4

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

6.5 Test Requirements

In normal conditions as specified in section 5.4.1, the Repeater maximum output power shall remain within limits specified in Table 6.3 relative to the manufacturer’s rated output power.

Table 6.4: Repeater output power; normal conditions

Rated output power	Limit
P ≥ 31 dBm	+2,7 dB and -2,7 dB
P < 31 dBm	+3,7 dB and -3,7 dB

In extreme conditions as specified in section 5.4.2 and 5.4.4, the Repeater maximum output power shall remain within limits specified in Table 6.4 relative to the manufacturer’s rated output power.

Table 6.5: Repeater output power; extreme conditions

Rated output power	Limit
P ≥ 31 dBm	+3,2 dB and -3,2 dB
P < 31 dBm	+4,7 dB and -4,7 dB

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 subclause 5.4.1.

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 is defined in subclause 5.2 and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in Annex B.