7.3 OTA Reference sensitivity level
37.145-23GPPActive Antenna System (AAS) Base Station (BS) conformance testingPart 2: radiated conformance testingRelease 17TS
7.3.1 Definition and applicability
The OTA REFSENS requirement is intended to ensure the OTA reference sensitivity level for a declared OTA REFSENS RoAoA.
The OTA reference sensitivity power level EISREFSENS is the mean power received at the RIB at which a reference performance requirement shall be met for a specified reference measurement channel.
The OTA REFSENS requirement shall apply to each supported polarization, under the assumption of polarization match.
7.3.2 Minimum Requirement
The minimum requirement for MSR & NR operation is in TS 37.105 [6], clause 10.3.2.
The minimum requirement for AAS BS in single RAT UTRA operation is defined in TS 37.105 [6], clause 10.3.3.
The minimum requirement for AAS BS in single RAT E-UTRA operation is defined in TS 37.105 [6], clause 10.3.4.
7.3.3 Test purpose
The test purpose is to verify that the AAS BS can meet the BER or throughput requirement for a specified measurement channel at the EISREFSENS level and the range of angles of arrival within the OTA REFSENS RoAoA.
7.3.4 Method of test
7.3.4.1 Initial conditions
Test environment:
– normal: see annex G.2.
RF channels to be tested:
– B, M and T; see clause 4.12.1.
Directions to be tested:
– OTA REFSENS receiver target reference direction (see table 4.10-2, D11.30),
– OTA REFSENS conformance test directions (see table 4.10-2, D11.31).
7.3.4.2 Procedure
1) Place the AAS BS with its manufacturer declared coordinate system reference point in the same place as calibrated point in the test system, as shown in annex D1.1.
2) Align the manufacturer declared coordinate system orientation of the AAS BS with the test system.
3) Align the BS with the test antenna in the declared direction to be tested.
4) Ensure the polarization is accounted for such that all the power from the test antenna is captured by the AAS BS under test.
5) Configure the beam peak direction of the AAS BS according to declared reference beam direction pair for the appropriate beam identifier.
6) Set the AAS BS to transmit the beam(s) of the same operational band and RAT as the OTA REFSENS RoAoA being tested according to the appropriate test configuration in clause 5.
7) Start the signal generator for the wanted signal to transmit:
– 12.2 kbps DPCH with reference measurement channel defined in annex A in TS 25.141 [10] (PN-9 data sequence or longer) for UTRA FDD.
– The test signal as specified in clause 7.3.5.3 for E-UTRA.
– The test signal as specified in clause 7.3.5.4 for NR.
8) Set the test signal mean power so the calibrated radiated power at the AAS BS Antenna Array coordinate system reference point is as specified in clause 7.3.5.
9) Measure:
– BER according to annex C in TS 25.141 [10] for FDD UTRA.
– Throughput according to annex E in TS 36.141 [12] for E-UTRA.
– Throughput according to annex A in TS 38.141-2 [34] for NR.
10) Repeat steps 3 to 9 for all directions to be tested, and supported polarizations.
For multi-band capable AAS BS and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carriers activated in the other band.
7.3.5 Test Requirement
7.3.5.1 General
The EISREFSENS level is the conducted REFSENS requirement value offset by ΔOTAREFSENS. The test requirement is calculated from the EISREFSENS level offset by the EISREFSENS Test Tolerance specified in clause 4.1.2.3.
7.3.5.2 UTRA FDD Test Requirements
The BER measurement result in step 9 of clause 7.3.4.2 shall not be greater than the limit specified in table 7.3.5.2-1.
Table 7.3.5.2-1: EISREFSENS levels
|
BS Class |
Reference measurement channel |
Reference |
EISREFSENS (dBm) |
BER |
|
|
measurement channel data rate |
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
|||
|
Wide Area BS |
12.2kbps DPCH with reference measurement channel defined in annex A in TS 25.141 [10] (PN-9 data sequence or longer) |
12.2 kbps |
-119.7 – ΔOTAREFSENS |
-119.6 – ΔOTAREFSENS |
BER shall not exceed 0.001 |
|
Medium Range BS |
12.2kbps DPCH with reference measurement channel defined in annex A in TS 25.141 [10] (PN-9 data sequence or longer) |
12.2 kbps |
-109.7 – ΔOTAREFSENS |
-109.6 – ΔOTAREFSENS |
BER shall not exceed 0.001 |
|
Local Area BS |
12.2kbps DPCH with reference measurement channel defined in annex A in TS 25.141 [10] (PN-9 data sequence or longer) |
12.2 kbps |
-105.7 – ΔOTAREFSENS |
-105.6 – ΔOTAREFSENS |
BER shall not exceed 0.001 |
7.3.5.3 E-UTRA Test Requirements
For each measured E-UTRA carrier, the throughput measured in step 9 of clause 7.3.4.2 shall be ≥ 95 % of the maximum throughput of the reference measurement channel as specified in TS 36.141 [12] annex A.1 with parameters specified in table 7.3.5.3-1.
able 7.3.5.3-1: E-UTRA Wide area AAS BS EISREFSENS levels
|
E-UTRA channel bandwidth (MHz) |
Reference measurement channel |
EISREFSENS (dBm) |
|
|
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
||
|
1.4 |
FRC A1-1 in annex A.1 [12] |
-105.5 – ΔOTAREFSENS |
-105.4 – ΔOTAREFSENS |
|
3 |
FRC A1-2 in annex A.1 [12] |
-101.7 – ΔOTAREFSENS |
-101.6 – ΔOTAREFSENS |
|
5 |
FRC A1-3 in annex A.1 [12] |
-100.2 – ΔOTAREFSENS |
-100.1 – ΔOTAREFSENS |
|
10 |
|||
|
15 |
FRC A1-3 in annex A.1 [12] (Note) |
-100.2 – ΔOTAREFSENS |
-100.1 – ΔOTAREFSENS |
|
20 |
|||
|
NOTE: EISREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of FRC A1-3 in [11] mapped to disjoint frequency ranges with a width of 25 Resource Blocks each. |
|||
Table 7.3.5.3-2: E-UTRA Local area AAS BS EISREFSENS levels
|
E-UTRA channel bandwidth (MHz) |
Reference measurement channel |
EISREFSENS (dBm) |
|
|
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
||
|
1.4 |
FRC A1-1 in annex A.1 [12] |
-97.5 – ΔOTAREFSENS |
-97.4 – ΔOTAREFSENS |
|
3 |
FRC A1-2 in annex A.1 [12] |
-93.7 – ΔOTAREFSENS |
-93.6 – ΔOTAREFSENS |
|
5 |
FRC A1-3 in annex A.1 [12] |
-92.2 – ΔOTAREFSENS |
-92.1 – ΔOTAREFSENS |
|
10 |
|||
|
15 |
FRC A1-3 in annex A.1 [12] (Note) |
-92.2 – ΔOTAREFSENS |
-92.1 – ΔOTAREFSENS |
|
20 |
|||
|
NOTE: EISREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of FRC A1-3 in [11] mapped to disjoint frequency ranges with a width of 25 Resource Blocks each. |
|||
Table 7.3.5.3-3: E-UTRA Medium range AAS BS EISREFSENS levels
|
E-UTRA channel bandwidth (MHz) |
Reference measurement channel |
EISREFSENS (dBm) |
|
|
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
||
|
1.4 |
FRC A1-1 in annex A.1 [12] |
-100.5 – ΔOTAREFSENS |
-100.4 – ΔOTAREFSENS |
|
3 |
FRC A1-2 in annex A.1 [12] |
-96.7 – ΔOTAREFSENS |
-96.6 – ΔOTAREFSENS |
|
5 |
FRC A1-3 in annex A.1 [12] |
-95.2 – ΔOTAREFSENS |
-95.1 – ΔOTAREFSENS |
|
10 |
FRC A1-3 in annex A.1 [12] (NOTE 1) FRC A1-8 in Annex A.1 [12] (NOTE 2) |
-95.2 – ΔOTAREFSENS -97.9 – ΔOTAREFSENS |
-95.1 – ΔOTAREFSENS -97.8 – ΔOTAREFSENS |
|
15 |
FRC A1-3 in annex A.1 [12] (Note) |
-95.2 – ΔOTAREFSENS |
-95.1 – ΔOTAREFSENS |
|
20 |
FRC A1-3 in annex A.1 [12] (NOTE 1) FRC A1-8 in Annex A.1 [12] (NOTE 2) |
-95.2 – ΔOTAREFSENS -97.9 – ΔOTAREFSENS |
-95.2 – ΔOTAREFSENS -97.9 – ΔOTAREFSENS |
|
NOTE 1: EISREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of FRC A1-3 in [11] mapped to disjoint frequency ranges with a width of 25 Resource Blocks each. This reference measurement channel is not applied for Band 46. NOTE 2: EISREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each single interlace of FRC A1-8 and A1-9. This reference measurement channel is only applied for Band 46. |
|||
7.3.5.4 NR Test Requirements
For each measured carrier, the throughput measured in step 9 of clause 7.3.4.2 shall be ≥ 95 % of the maximum throughput of the reference measurement channel as specified in annex TS 38.104 [33] A.1 with parameters specified in tables 7.3.5.4-1 to 7.3.5.4-3.
Table 7.3.5.4-1: Wide Area BS EISREFSENS levels
|
BS channel bandwidth (MHz) |
Sub-carrier spacing (kHz) |
Reference measurement |
EISREFSENS (dBm) |
|
|
channel |
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
||
|
5, 10, 15 |
15 |
G-FR1-A1-1 |
-100.4 – ΔOTAREFSENS |
-100.3 – ΔOTAREFSENS |
|
10, 15 |
30 |
G-FR1-A1-2 |
-100.5 – ΔOTAREFSENS |
-100.4 – ΔOTAREFSENS |
|
10, 15 |
60 |
G-FR1-A1-3 |
-97.6 – ΔOTAREFSENS |
-97.5 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50 |
15 |
G-FR1-A1-4 |
-94 – ΔOTAREFSENS |
-93.9 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 |
30 |
G-FR1-A1-5 |
-94.3 – ΔOTAREFSENS |
-94.2 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 |
60 |
G-FR1-A1-6 |
-94.4 – ΔOTAREFSENS |
-94.3 – ΔOTAREFSENS |
|
NOTE: PREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full BS channel bandwidth. |
||||
Table 7.3.5.4-2: Medium Range BS EISREFSENS levels
|
BS channel bandwidth (MHz) |
Sub-carrier spacing (kHz) |
Reference measurement |
EISREFSENS (dBm) |
|
|
channel |
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
||
|
5, 10, 15 |
15 |
G-FR1-A1-1 |
-95.4 – ΔOTAREFSENS |
-95.3 – ΔOTAREFSENS |
|
10, 15 |
30 |
G-FR1-A1-2 |
-95.5 – ΔOTAREFSENS |
-95.4 – ΔOTAREFSENS |
|
10, 15 |
60 |
G-FR1-A1-3 |
-92.6 – ΔOTAREFSENS |
-92.5 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50 |
15 |
G-FR1-A1-4 |
-89 – ΔOTAREFSENS |
-88.9 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 |
30 |
G-FR1-A1-5 |
-89.3 – ΔOTAREFSENS |
-89.2 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 |
60 |
G-FR1-A1-6 |
-89.4 – ΔOTAREFSENS |
-89.3 – ΔOTAREFSENS |
|
NOTE: PREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full BS channel bandwidth. |
||||
Table 7.3.5.4-3: Local Area BS EISREFSENS levels
|
BS channel bandwidth (MHz) |
Sub-carrier spacing (kHz) |
Reference measurement |
EISREFSENS (dBm) |
|
|
channel |
f ≤ 3.0 GHz |
3.0 GHz < f ≤ 4.2 GHz |
||
|
5, 10, 15 |
15 |
G-FR1-A1-1 |
-92.4 – ΔOTAREFSENS |
-92.3 – ΔOTAREFSENS |
|
10, 15 |
30 |
G-FR1-A1-2 |
-92.5 – ΔOTAREFSENS |
-92.4 – ΔOTAREFSENS |
|
10, 15 |
60 |
G-FR1-A1-3 |
-89.6 – ΔOTAREFSENS |
-89.5 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50 |
15 |
G-FR1-A1-4 |
-86 – ΔOTAREFSENS |
-85.9 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 |
30 |
G-FR1-A1-5 |
-86.3 – ΔOTAREFSENS |
-86.2 – ΔOTAREFSENS |
|
20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 |
60 |
G-FR1-A1-6 |
-86.4 – ΔOTAREFSENS |
-86.3 – ΔOTAREFSENS |
|
NOTE: PREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full BS channel bandwidth. |
||||