6.6.1B Occupied bandwidth for UL-MIMO
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
6.6.1B.1 Test purpose
To verify that the UE occupied bandwidth for all transmission bandwidth configurations supported by each of transmit antenna of the UE are less than their specific limits.
6.6.1B.2 Test applicability
This test applies to all types of E-UTRA UE release 10 and forward that support UL-MIMO.
6.6.1B.3 Minimum conformance requirements
For UE with multiple transmit antenna connectors, the requirements for occupied bandwidth is specified at each transmit antenna connector. The occupied bandwidth is defined as the bandwidth containing 99 % of the total integrated mean power of the transmitted spectrum on the assigned channel at each transmit antenna connector.
For UE with two transmit antenna connectors in closed-loop spatial multiplexing scheme, the occupied bandwidth at each transmitter antenna shall be less than the channel bandwidth specified in Table 6.6.1B.3-1 with the UL-MIMO configurations specified in Table 6.2.2B.3-2.
Table 6.6.1B.3-1: Occupied channel bandwidth
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Occupied channel bandwidth / Channel bandwidth |
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|
1.4 MHz |
3.0 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
|
|
Channel bandwidth (MHz) |
1.4 |
3 |
5 |
10 |
15 |
20 |
The normative reference for this requirement is TS 36.101 [2] clause 6.6.1B.
6.6.1B.4 Test description
6.6.1B.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, test frequencies, and channel bandwidths based on E-UTRA operating 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 6.6.1B.4.1-1. The details of the uplink reference measurement channels (RMCs) are specified in Annexes A.2. Configurations of PDSCH and PDCCH before measurement are specified in Annex C.2.
Table 6.6.1B.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 |
Normal |
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Test Frequencies as specified in TS36.508 [7] subclause 4.3.1 |
Mid range |
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Test Channel Bandwidths as specified in TS 36.508 [7] subclause 4.3.1 |
All |
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Test Parameters for Channel Bandwidths |
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Downlink Configuration |
Uplink Configuration |
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|
Ch BW |
N/A for Occupied bandwidth |
Mod’n |
RB allocation |
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|
FDD |
TDD |
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|
1.4MHz |
QPSK |
6 |
6 |
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|
3MHz |
QPSK |
15 |
15 |
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|
5MHz |
QPSK |
25 |
25 |
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|
10MHz |
QPSK |
50 |
50 |
||
|
15MHz |
QPSK |
75 |
75 |
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|
20MHz |
QPSK |
100 |
100 |
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|
Note 1: Test Channel Bandwidths are checked separately for each E-UTRA band, the applicable channel bandwidths are specified in Table 5.4.2.1-1. |
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1. Connect the SS to the UE antenna connectors as shown in TS 36.508 [7] Annex A, Figure A.28.
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 Reference Measurement channels are set according to Table 6.6.1B.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 6.6.1B.4.3.
6.6.1B.4.2 Test procedure
1. SS sends uplink scheduling information for each UL HARQ process via PDCCH DCI format 4 for C_RNTI to schedule the UL RMC according to Table 6.6.1B.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. Send continuously power control "up" commands to the UE until the UE transmits at PUMAX level.
3. Measure the power spectrum distribution within two times or more range over the requirement for Occupied Bandwidth specification centring on the current carrier frequency. The characteristic of the filter shall be approximately Gaussian (typical spectrum analyzer filter). Other methods to measure the power spectrum distribution are allowed. The measuring duration is one active uplink subframe. For TDD slots with transient periods are not under test.
4. Calculate the total power within the range of all frequencies measured in ‘3)’ and save this value as "Total Power".
5. Sum up the power upward from the lower boundary of the measured frequency range in ‘3)’ and seek the limit frequency point by which this sum becomes 0,5 % of "Total Power" and save this point as "Lower Frequency".
6. Sum up the power downward from the upper boundary of the measured frequency range in ‘3)’ and seek the limit frequency point by which this sum becomes 0,5 % of "Total Power" and save this point as "Upper Frequency".
7. Calculate the difference ("Upper Frequency" "Lower Frequency" = "Occupied Bandwidth") between two limit frequencies obtained in ‘5)’ and ‘6)’.
8. Repeat step 3) until 7) for each of transmit antenna of the UE.
6.6.1B.4.3 Message contents
Message contents are according to TS 36.508 [7] clause 4.6.6.6.1B.5 Test requirement
The measured Occupied Bandwidth at each transmit antenna of UE shall not exceed values in Table 6.6.1B.5-1.
Table 6.6.1B.5-1: Occupied channel bandwidth
|
Occupied channel bandwidth / channel bandwidth |
||||||
|
1.4 MHz |
3.0 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
|
|
Channel bandwidth [MHz] |
1.4 |
3 |
5 |
10 |
15 |
20 |