6.5.1 Frequency Error
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
6.5.1.1 Test purpose
This test verifies the ability of both, the receiver and the transmitter, to process frequency correctly.
Receiver: to extract the correct frequency from the stimulus signal, offered by the System simulator, under ideal propagation conditions and low level.
Transmitter: to derive the correct modulated carrier frequency from the results, gained by the receiver.
6.5.1.2 Test applicability
This test case applies to all types of E-UTRA UE release 8 and forward.
6.5.1.3 Minimum conformance requirements
The UE modulated carrier frequency shall be accurate to within ±0.1 PPM observed over a period of one time slot (0.5ms) compared to the carrier frequency received from the E-UTRA Node B.
The normative reference for this requirement is TS 36.101 clause 6.5.1
6.5.1.4 Test description
6.5.1.4.1 Initial condition
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, test frequencies, and channel bandwidths based on E-UTRA bands specified in table 5.4.2.1-1. All of these configurations shall be tested with applicable test parameters for each channel bandwidth, and are shown in table 6.5.1.4.1-1. The details of the uplink and downlink reference measurement channels (RMCs) are specified in Annexes A.2 and A.3. Configurations of PDSCH and PDCCH before measurement are specified in Annex C.2.
Table 6.5.1.4.1-1: Test Configuration Table
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Initial Conditions |
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Test Environment as specified in TS 36.508[7] subclause 4.1 |
NC, TL/VL, TL/VH, TH/VL, TH/VH |
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Test Frequencies as specified in TS36.508 [7] subclause 4.3.1 |
Low range, Mid range, High range |
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Test Channel Bandwidths as specified in TS 36.508 [7] subclause 4.3.1 |
Lowest, 5MHz, Highest |
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Test Parameters for Channel Bandwidths |
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Downlink Configuration |
Uplink Configuration |
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Ch BW |
Mod’n |
RB allocation |
Mod’n |
RB allocation |
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FDD |
TDD |
FDD |
TDD |
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|
1.4MHz |
QPSK |
6 |
6 |
QPSK |
6 |
6 |
|
3MHz |
QPSK |
15 |
15 |
QPSK |
15 |
15 |
|
5MHz |
QPSK |
25 |
25 |
QPSK |
25 |
25 |
|
5MHz |
QPSK |
25 |
N/A |
QPSK |
20 |
N/A |
|
5MHz |
QPSK |
25 |
N/A |
QPSK |
15 |
N/A |
|
5MHz |
QPSK |
25 |
N/A |
QPSK |
53 |
N/A |
|
10MHz |
QPSK |
50 |
50 |
QPSK |
50 |
50 |
|
10MHz |
QPSK |
50 |
N/A |
QPSK |
25 |
N/A |
|
10MHz |
QPSK |
50 |
N/A |
QPSK |
20 |
N/A |
|
10MHz |
QPSK |
50 |
N/A |
QPSK |
15 |
N/A |
|
15MHz |
QPSK |
75 |
75 |
QPSK |
75 |
75 |
|
15MHz |
QPSK |
75 |
N/A |
QPSK |
50 |
N/A |
|
15MHz |
QPSK |
75 |
N/A |
QPSK |
25 |
N/A |
|
15MHz |
QPSK |
75 |
N/A |
QPSK |
20 |
N/A |
|
20MHz |
QPSK |
100 |
100 |
QPSK |
100 |
100 |
|
20MHz |
QPSK |
100 |
N/A |
QPSK |
75 |
N/A |
|
20MHz |
QPSK |
100 |
N/A |
QPSK |
50 |
N/A |
|
20MHz |
QPSK |
100 |
N/A |
QPSK |
25 |
N/A |
|
20MHz |
QPSK |
100 |
N/A |
QPSK |
20 |
N/A |
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Note 1: Test Channel Bandwidths are checked separately for each E-UTRA band, which applicable channel bandwidths are specified in Table 5.4.2.1-1. Note 2: Depending on E-UTRA band, only the appropriate Uplink RB allocation value according to table 7.3.3-2 is tested per Test Channel Bandwidth. Note 3: Applicable only to E-UTRA FDD Band 31. The UL resource blocks shall be located at RBstart 10 (according to Table 7.3.3-2). |
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1. Connect the SS to the UE to the UE antenna connectors as shown in TS 36.508 [7] Annex A, Figure A.3.
2. The parameter settings for the cell are set up according to TS 36.508[7] subclause 4.4.3.
3. Downlink signals are initially set up according to Annex C0, C.1 and C.3.0, and uplink signals according to Annex H.1 and H.3.0.
4. The UL and DL Reference Measurement channels are set according to Table 6.5.1.4.1-1.
5. Propagation conditions are set according to Annex B.0
6. Ensure the UE is in State 3A-RF according to TS 36.508 [7] clause 5.2A.2. Message contents are defined in clause 6.5.1.4.3.
6.5.1.4.2 Test procedure
1. SS transmits PDSCH via PDCCH DCI format 1A for C_RNTI to transmit the DL RMC according to Table 6.5.1.4.1-1. The SS sends downlink MAC padding bits on the DL RMC.
2. SS sends uplink scheduling information for each UL HARQ process via PDCCH DCI format 0 for C_RNTI to schedule the UL RMC according to Table 6.5.1.4.1-1, since the UE has no payload data to send, the UE transmit uplink MAC padding bits on the UL RMC
3. Set the Downlink signal level to the appropriate REFSENS value defined in Table 7.3.5-1. Send continuously uplink power control "up" commands to the UE in every uplink scheduling information to the UE so that the UE transmits at PUMAX level for the duration of the test.
4. Measure the Frequency Error using Global In-Channel Tx-Test (Annex E). For TDD slots with transient periods are not under test.
6.5.1.4.3 Message contents
Message contents are according to TS 36.508 [7] subclause 4.6 with the exceptions in subclause 7.3.4.3 and Table 7.3.3-3.
6.5.1.5 Test requirement
The 20 frequency error Δf results must fulfil the test requirement:
|Δf| ≤ (0.1 PPM + 15 Hz)