6.3.2F Minimum Output Power for category NB1 and NB2
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
6.3.2F.1 Test purpose
To verify the UE’s ability to transmit with a broadband output power below the value specified in the test requirement when the power is set to a minimum value.
6.3.2F.2 Test applicability
This test case applies to all types of NB-IoT FDD UE release 13 and forward of category NB1.
This test case applies to all types of NB-IoT FDD UE release 14 and forward of category NB2.
This test case applies to all types of NB-IoT TDD UE release 15 and forward of category NB1 and NB2.
6.3.2F.3 Minimum conformance requirements
For category NB1 and NB2 UE the single-tone and multi-tone transmission minimum output power requirement for the channel bandwidth is -40 dBm. For 3.75kHz sub-carrier spacing the minimum output power is defined as mean power in one slot (2ms) excluding the 2304Ts gap when UE is not transmitting. For 15kHz sub-carrier spacing the minimum output power is defined as mean power in one sub-frame (1ms).
The normative reference for this requirement is TS 36.101 [2] clause 6.3.2F.
6.3.2F.4 Test description
6.3.2F.4.1 Initial conditions
Initial conditions are a set of test configurations the UE needs to be tested in and the steps for the SS to take with the UE to reach the correct measurement state.
The initial test configurations consist of environmental conditions and test frequencies based on the subset of E-UTRA operating bands defined for NB-IoT in clause 5.2F. All of these configurations shall be tested with applicable test parameters, and are shown in table 6.3.2F.4.1-1. The details of the uplink reference measurement channels (RMCs) are specified in Annex A.2. Configurations of NPDSCH and NPDCCH before measurement are specified in Annex C.2.
Table 6.3.2F.4.1-1: Test Configuration Table for FDD & TDD
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Initial Conditions |
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Test Environment as specified in TS 36.508 [7] subclause 8.1.1 |
Normal, TL/VL, TL/VH, TH/VL, TH/VH |
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Test Frequencies as specified in TS 36.508 [7] subclause 8.1.3.1 |
Frequency ranges defined in Annex K.1.1 |
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Test Parameters |
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Configuration ID |
Downlink Configuration |
Uplink Configuration |
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N/A |
Modulation |
Ntones |
Sub-carrier spacing (kHz) |
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1 (Note 2) |
BPSK |
1@0 |
3.75 |
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2 (Note 3) |
BPSK |
1@47 |
3.75 |
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3 (Note 2) |
QPSK |
1@0 |
15 |
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4 (Note 3) |
QPSK |
1@11 |
15 |
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5 (Note 1) |
QPSK |
12@0 |
15 |
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Note 1: Applicable to UE supporting UL multi-tone transmissions Note 2: only applicable for low range Note 3: only applicable for high range |
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1. Connect the SS to the UE antenna connectors as shown in TS 36.508 [7] Annex A Figure A.3 using only the main UE Tx/Rx antenna.
2. The parameter settings for the cell are set up according to TS 36.508 [7] subclause 8.1.4.3.
3. Downlink signals are initially set up according to Annex C.0, C.1, and C.3.0, and uplink signals according to Annex H.1.1 and H.4.0.
4. The UL Reference Measurement channel is set according to Table 6.3.2F.4.1-1.
5. Propagation conditions are set according to Annex B.0.
6. Ensure the UE is in State 2A-NB with CP CIoT Optimisation according to TS 36.508 [7] clause 8.1.5. Message contents are defined in clause 6.3.2F.4.3.
6.3.2F.4.2 Test procedure
1. SS sends uplink scheduling information for each UL HARQ process via NPDCCH with DCI format N0 for C_RNTI to schedule the UL RMC according to Table 6.3.2F.4.1-1. Since the UE has no payload and no loopback data to send the UE sends uplink MAC padding bits on the UL RMC.
2. Measure the mean power of the UE in the channel bandwidth of the radio access mode. The period of measurement shall be at least the continuous duration of one sub-frame (1ms) for sub-carrier spacing of 15 kHz or one slot (2ms) excluding the 2304Ts gap when UE is not transmitting for sub-carrier spacing of 3.75 kHz. Half-Duplex guard subframes are not under test. For TDD slots with transient periods are not under test.
NOTE 1: For configuration IDs applicable to UE depending on UE capability in Test Configuration Table with different UL sub-carrier spacing, the SS shall release the connection through State 3A-NB and finally ensure the UE is in State 2A-NB with CP CIoT Optimisation according to TS 36.508 [7] clause 8.1.5 using the appropriate UL subcarrier spacing in Random Access Response message.
6.3.2F.4.3 Message contents
Message contents are according to TS 36.508 [7] subclause 8.1.6 with the following exception.
Table 6.3.2F4.3-1: NPDSCH-ConfigCommon-NB-DEFAULT
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Derivation Path: 36.508 clause 8.1.6.3, Table 8.1.6.3-4 |
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Information Element |
Value/remark |
Comment |
Condition |
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NPDSCH-ConfigCommon-NB-DEFAULT ::= SEQUENCE { |
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nrs-Power-r13 |
-39 (dBm) |
15 kHz SCS Ntones = 1 |
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-50 (dBm) |
15 kHz SCS Ntones = 12 |
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-33 (dBm) |
3.75 kHz SCS |
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} |
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Table 6.3.2F4.3-2: UplinkPowerControlCommon-NB-DEFAULT
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Derivation Path: 36.508 clause 8.1.6.3. Table 8.1.6.3-14 |
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Information Element |
Value/remark |
Comment |
Condition |
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UplinkPowerControlCommon-NB-DEFAULT ::= SEQUENCE { |
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p0-NominalNPUSCH-r13 |
-95 (-95 dBm) |
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alpha-r13 |
al1 (1) |
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deltaPreambleMsg3-r13 |
4 |
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} |
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6.3.2F.5 Test requirements
The minimum output power measured shall not exceed the value of -39 dBm for the channel bandwidth of category NB1 and NB2 UE.