7.5EC Adjacent Channel Selectivity (ACS) for UE category M2
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
7.5EC.1 Test purpose
Adjacent channel selectivity tests the ability of category M2 UE 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.
7.5EC.2 Test applicability
This test applies to all types of E-UTRA UE release 14 and forward of category M2.
7.5EC.3 Minimum conformance requirements
Adjacent Channel Selectivity (ACS) is a measure of a receiver’s ability to receive a 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 7.5EC.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 7.5EC.3-2 and Table 7.5EC.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 7.5EC.3-1: Adjacent channel selectivity
|
Channel bandwidth |
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|
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 7.5EC.3-2: Test parameters for Adjacent channel selectivity, Case 1
|
Rx Parameter |
Units |
Channel bandwidth |
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|
1.4 MHz |
3 MHz |
5 MHz |
10 MHz |
15 MHz |
20 MHz |
||
|
Power in Transmission Bandwidth Configuration |
dBm |
REFSENS + 14 dB |
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|
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 7.3EA-3 with PCMAX_L as defined in clause 6.2.5EA. 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: For DL category M1 and M2 UE, the reference sensitivity for category M1 in table 7.3EA-1 and 7.3EA-2 and category M2 in Table 7.3EC-1 should be used as REFSENS for the power in Transmission Bandwidth Configuration and PInterferer. Note 4: For DL category M1 and M2 UE, the parameters for the applicable channel bandwidth apply. |
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Table 7.5EC.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 |
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|
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 7.3EA-3 with PCMAX_L as defined in clause 6.2.5EA. 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.
7.5EC.4 Test description
7.5EC.4.1 Initial conditions
Same as in clause 7.5EA.4.1 with the following exceptions:
- Instead of Table 7.5EA.4.1-1 🡪 use Table 7.5EC.4.1-1
- Instead of CAT M1 🡪 use CAT M2
Table 7.5EC.4.1-1: Test Configuration Table RX test cases UE Cat-M2
|
Initial Conditions |
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|
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 |
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|
Test Channel Bandwidths as specified in TS 36.508 [7] clause 4.3. |
1.4, 3MHz, 5MHz |
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|
Test Parameters for Channel Bandwidths and Narrowband positions |
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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 and HD-FDD |
TDD |
FDD and HD-FDD |
TDD |
|||
|
1.4MHz |
QPSK |
4 |
4 |
QPSK |
6 |
6 |
|
3MHz |
QPSK |
8 |
8 |
QPSK |
15 |
15 |
|
5MHz |
QPSK |
16 |
16 |
QPSK |
24 |
24 |
|
Note 1: Downlink RB position shall be RBstart = 0 within the narrowband. Note 2: Use narrowband index (TS36.211, 5.2.4) 0 when interferer is below carrier, and max narrowband index when interferer is above carrier. |
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7.5EC.4.2 Test procedure
Same as in clause 7.5EA.4.2 with the following exceptions:
Instead of Table 7.5EA.4.1-1 🡪 use Table 7.5EC.4.1-1
7.5EC.4.3 Message contents
Same as in clause 7.5EA.4.3.
7.5EC.5 Test requirement
Same as in clause 7.5EA.5.