7.5 Adjacent Channel Selectivity (ACS)
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
7.5.1 Test purpose
Adjacent channel selectivity tests the UE’s ability to receive data with a given average throughput for a specified reference measurement channel, in the presence of an adjacent channel signal at a given frequency offset from the centre frequency of the assigned channel, under conditions of ideal propagation and no added noise.
A UE unable to meet the throughput requirement under these conditions will decrease the coverage area when other e-NodeB transmitters exist in the adjacent channel.
7.5.2 Test applicability
This test applies to all types of E-UTRA UE release 8 and forward.
7.5.3 Minimum conformance requirements
Adjacent Channel Selectivity (ACS) is a measure of a receiver’s ability to receive an E-UTRA signal at its assigned channel frequency in the presence of an adjacent channel signal at a given frequency offset from the centre frequency of the assigned channel. ACS is the ratio of the receive filter attenuation on the assigned channel frequency to the receive filter attenuation on the adjacent channel(s).
The UE shall fulfil the minimum requirement specified in Table 7.5.3-1 for all values of an adjacent channel interferer up to –25 dBm. However it is not possible to directly measure the ACS, instead the lower and upper range of test parameters are chosen in Table 7.5.3-2 and Table 7.5.3-3 where the throughput Rav shall be ≥ 95% of the maximum throughput of the reference measurement channels as specified in Annexes A.2.2, A.2.3 and A.3.2 (with one sided dynamic OCNG Pattern OP.1 FDD/TDD for the DL-signal as described in Annex A.5.1.1/A.5.2.1). For operating bands with an unpaired DL part (as noted in Table 5.2-1), the requirements only apply for carriers assigned in the paired part.
Table 7.5.3-1: Adjacent channel selectivity
|
Channel bandwidth |
|||||||
|
Rx Parameter |
Units |
1.4 MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
|
ACS |
dB |
33.0 |
33.0 |
33.0 |
33.0 |
30 |
27 |
Table 7.5.3-2: Test parameters for Adjacent channel selectivity, Case 1
|
Rx Parameter |
Units |
Channel bandwidth |
|||||
|
1.4 MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
||
|
Power in Transmission Bandwidth Configuration |
dBm |
REFSENS + 14 dB |
|||||
|
PInterferer |
dBm |
REFSENS +45.5dB |
REFSENS +45.5dB |
REFSENS +45.5dB |
REFSENS +45.5dB |
REFSENS +42.5dB |
REFSENS +39.5dB |
|
BWInterferer |
MHz |
1.4 |
3 |
5 |
5 |
5 |
5 |
|
FInterferer (offset) |
MHz |
1.4+0.0025 / -1.4-0.0025 |
3+0.0075 / -3-0.0075 |
5+0.0025 / -5-0.0025 |
7.5+0.0075 / -7.5-0.0075 |
10+0.0125 / -10-0.0125 |
12.5+0.0025 / -12.5-0.0025 |
|
Note 1: The transmitter shall be set to 4dB below PCMAX_L at the minimum uplink configuration specified in Table 7.3.3-2 with PCMAX_L as defined in clause 6.2.5. Note 2: The interferer consists of the Reference measurement channel specified in Annex A.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD as described in Annex A.5.1.1/A.5.2.1 and set-up according to Annex C.3.1. Note 3: The REFSENS power level is specified in Table 7.3.3-1 and Table 7.3.3-1a for two and four antenna ports, respectively. |
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Table 7.5.3-3: Test parameters for Adjacent channel selectivity, Case 2
|
Rx Parameter |
Units |
Channel bandwidth |
|||||
|
1.4 MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
||
|
Power in Transmission Bandwidth Configuration |
dBm |
-56.5 |
-56.5 |
-56.5 |
-56.5 |
-53.5 |
-50.5 |
|
PInterferer |
dBm |
-25 |
|||||
|
BWInterferer |
MHz |
1.4 |
3 |
5 |
5 |
5 |
5 |
|
FInterferer (offset) |
MHz |
1.4+0.0025 / -1.4-0.0025 |
3+0.0075 / -3-0.0075 |
5+0.0025 / -5-0.0025 |
7.5+0.0075 / -7.5-0.0075 |
10+0.0125 / -10-0.0125 |
12.5+0.0025 / -12.5-0.0025 |
|
Note 1: The transmitter shall be set to 24dB below PCMAX_L at the minimum uplink configuration specified in Table 7.3.3-2 with PCMAX_L as defined in clause 6.2.5. Note 2: The interferer consists of the Reference measurement channel specified in Annex A.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD as described in Annex A.5.1.1/A.5.2.1 and set-up according to Annex C.3.1. |
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The normative reference for this requirement is TS 36.101 [2] clause 7.5.1.
7.5.4 Test description
7.5.4.1 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 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 7.5.4.1-1. The details of the uplink and downlink reference measurement channels (RMCs) are specified in Annexes A.2 and A.3 respectively. The details of the OCNG patterns used are specified in Annex A.5. Configurations of PDSCH and PDCCH before measurement are specified in Annex C.2.
Table 7.5.4.1-1: Test Configuration Table
|
Initial Conditions |
||||||
|
Test Environment as specified in TS 36.508[7] clause 4.1 |
NC |
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|
Test Frequencies as specified in TS36.508 [7] clause 4.3.1 |
Mid range |
|||||
|
Test Channel Bandwidths as specified in TS 36.508 [7] clause 4.3. |
Lowest, 5MHz, Highest |
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|
Test Parameters for Channel Bandwidths |
||||||
|
Downlink Configuration |
Uplink Configuration |
|||||
|
Ch BW |
Mod’n |
RB allocation |
Mod’n |
RB allocation |
||
|
FDD |
TDD |
FDD |
TDD |
|||
|
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 |
54 |
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 |
|
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. The allocation shall be located as close as possible to the downlink operating band but confined within the transmission bandwidth configuration for the channel bandwidth (Table 5.4.2-1). Note 3: For the DL signal one sided dynamic OCNG Pattern OP.1 FDD/TDD is used. Note 4: Applicable only to E-UTRA FDD Bands 31 and 72. 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 and interfering source to the UE antenna connectors as shown in TS 36.508 [7] Figure A.4.
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.3.1, and uplink signals according to Annex H.1 and H.3.1.
4. The UL and DL Reference Measurement channels are set according to Table 7.5.4.1-1.
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 7.5.4.3.
7.5.4.2 Test procedure
1. SS transmits PDSCH via PDCCH DCI format 1A for C_RNTI to transmit the DL RMC according to Table 7.5.4.1-1. 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 7.5.4.1-1. Since the UE has no payload data to send, the UE transmits uplink MAC padding bits on the UL RMC.
3. Set the Downlink signal level to the value as defined in Table 7.5.5-2 (Case 1). Send Uplink power control commands to the UE (less or equal to 1dB step size should be used), to ensure that the UE output power is within +0, – 3.4 dB of the target level in Table 7.5.5-2 (Case 1) for carrier frequency f ≤ 3.0GHz or within +0, -4.0 dB of the target level for carrier frequency 3.0GHz < f ≤ 4.2GHz, for at least the duration of the Throughput measurement.
4. Set the Interferer signal level to the value as defined in Table 7.5.5-2 (Case 1) and frequency below the wanted signal, using a modulated interferer bandwidth as defined in Annex D of the present document.
5. Measure the average throughput for a duration sufficient to achieve statistical significance according to Annex G.2.
6. Repeat steps from 3 to 5, using an interfering signal above the wanted signal in Case 1 at step 4.
7. Set the Downlink signal level to the value as defined in Table 7.5.5-3 (Case 2). Send Uplink power control commands to the UE (less or equal to 1dB step size should be used), to ensure that the UE output power is within +0, – 3.4 dB of the target level in Table 7.5.5-3 (Case 2) for carrier frequency f ≤ 3.0GHz or within +0, -4.0 dB of the target level for carrier frequency 3.0GHz < f ≤ 4.2GHz, for at least the duration of the Throughput measurement.
8. Set the Interferer signal level to the value as defined in Table 7.5.5-3 (Case 2) and frequency below the wanted signal, using a modulated interferer bandwidth as defined in Annex D of the present document.
9. Measure the average throughput for a duration sufficient to achieve statistical significance according to Annex G.2.
10. Repeat steps from 7 to 9, using an interfering signal above the wanted signal in Case 2 at step 8.
11. Repeat for applicable channel bandwidths and operating band combinations in both Case 1 and Case 2.
7.5.4.3 Message contents
Message contents are according to TS 36.508 [7] subclause 4.6 with the following exception
Table 7.5.4.3-1: UplinkPowerControlDedicated
|
Derivation Path: 36.331 clause 6.3.2 |
|||
|
Information Element |
Value/remark |
Comment |
Condition |
|
UplinkPowerControlDedicated-DEFAULT ::= SEQUENCE { |
|||
|
p0-UePUSCH |
0 |
||
|
deltaMCS-Enabled |
en0 |
||
|
accumulationEnabled |
TRUE |
||
|
p0-uePUCCH |
0 |
||
|
pSRS-Offset |
3 (-6 dB) |
||
|
filterCoefficient |
fc8 |
larger filter length is used to reduce the RSRP measurement variation |
|
|
} |
|||
7.5.5 Test requirement
The throughput Rav shall be ≥ 95% of the maximum throughput of the reference measurement channels as specified in Annex A.3.2 under the conditions specified in table 7.5.5-2, and also under the conditions specified in table 7.5.5-3.
Table 7.5.5-1: Adjacent channel selectivity
|
Channel bandwidth |
|||||||
|
Rx Parameter |
Units |
1.4 MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
|
ACS |
dB |
33.0 |
33.0 |
33.0 |
33.0 |
30 |
27 |
Table 7.5.5-2: Test parameters for Adjacent channel selectivity, Case 1
|
Rx Parameter |
Units |
Channel bandwidth |
|||||
|
1.4MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
||
|
Power in Transmission Bandwidth Configuration |
dBm |
REFSENS + 14 dB |
|||||
|
PInterferer |
dBm |
REFSENS +45.5dB |
REFSENS +45.5dB |
REFSENS +45.5dB |
REFSENS +45.5dB |
REFSENS +42.5dB |
REFSENS +39.5dB |
|
BWInterferer |
MHz |
1.4 |
3 |
5 |
5 |
5 |
5 |
|
FInterferer (offset) |
MHz |
1.4+0.0025/ -1.4-0.0025 |
3+0.0075 / -3-0.0075 |
5+0.0025 / -5-0.0025 |
7.5+0.0075 / -7.5-0.0075 |
10+0.0125 / -10-0.0125 |
12.5+0.0025 / -12.5-0.0025 |
|
Note 1: The transmitter shall be set to 4dB below PCMAX_L with PCMAX_L as defined in clause 6.2.5. Note 2: The interferer consists of the Reference measurement channel specified in Annex A.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD as described in Annex A.5.1.1/A.5.2.1 and set-up according to Annex C.3.1. Note 3: The REFSENS power level is specified in Table 7.3.3-1 for two antenna ports. |
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Table 7.5.5-3: Test parameters for Adjacent channel selectivity, Case 2
|
Rx Parameter |
Units |
Channel bandwidth |
|||||
|
1.4 MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
||
|
Power in Transmission Bandwidth Configuration |
dBm |
-56.5 |
-56.5 |
-56.5 |
-56.5 |
-53.5 |
-50.5 |
|
PInterferer |
dBm |
-25 |
|||||
|
BWInterferer |
MHz |
1.4 |
3 |
5 |
5 |
5 |
5 |
|
FInterferer (offset) |
MHz |
1.4+0.0025/ -1.4-0.0025 |
3+0.0075 / -3-0.0075 |
5+0.0025 / -5-0.0025 |
7.5+0.0075 / -7.5-0.0075 |
10+0.0125 / -10-0.0125 |
12.5+0.0025 / -12.5-0.0025 |
|
Note 1: The transmitter shall be set to 24dB below PCMAX_L with PCMAX_L as defined in clause 6.2.5. Note 2: The interferer consists of the Reference measurement channel specified in Annex A.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD as described in Annex A.5.1.1/A.5.2.1 and set-up according to Annex C.3.1. |
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