4.13 Test efficiency optimization
38.176-23GPPIntegrated Access and Backhaul (IAB) conformance testingNRPart 2: radiated conformance testingRelease 17TS
When manufacture declares the same RF implementation for IAB-MT and IAB-DU (D.IAB-1) and the declarations in table 4.13-1 are the same for IAB-DU and IAB-MT, it is sufficient to test only IAB-MT or IAB-DU with the test requirement applicability according to table 4.13-2 for Tx requirements and table 4.13-3 for Rx requirements.
For IAB type 1-H the test efficiency optimization for radiated requirements apply only for radiated transmit power and OTA sensitivity. Test efficiency optimization for conducted requirements is defined in TS 38.176-1 [3].
For IAB type 1-O and IAB type 2-O it is required that the DUT selection between requirements follows following rules:
– out of radiated transmit power, OTA modulation quality and OTA frequency error, IAB-DU and IAB-MT are required to be the DUT at least once,
– out of OTA ACLR, OTA operating band unwanted emissions and OTA transmitter general spurious emissions, are required to be the DUT at least once,
– out of OTA reference sensitivity, OTA ACS, OTA receiver intermodulation, IAB-DU and IAB-MT are required to be the DUT at least once.
In some cases, the test requirements are the same but the MU for the IAB-MT is larger than for the IAB-DU. When the test efficiency optimization is applicable for such cases, the lower MU value should be used.
Table 4.13-1: Declarations required to be the same for IAB-DU and IAB-MT for test efficiency optimization to apply
|
Declaration identifier |
Declaration |
Additional conditions |
Applicability (Note 1) |
||
|---|---|---|---|---|---|
|
IAB type 1-H |
IAB type 1-O |
IAB type 2-O |
|||
|
D.4 |
Operating bands and frequency ranges |
c |
x |
x |
|
|
D.6 |
IAB class |
Medium range IAB-DU can apply test efficiency optimization with wide area IAB-MT other declarations in this table are the same. |
c |
x |
x |
|
D.11 |
Rated beam EIRP |
x |
x |
x |
|
|
D.17 |
Maximum radiated IAB RF Bandwidth |
c |
x |
x |
|
|
D.19 |
Total RF bandwidth (BWtot) |
c |
x |
x |
|
|
D.21 |
Maximum number of supported carriers per operating band in multi-band operations |
c |
x |
n/a |
|
|
D.27 |
Minimum EIS for FR1 (EISminSENS) |
x |
x |
n/a |
|
|
D.28 |
EIS REFSENS for FR2 (EISREFSENS_50M) |
n/a |
n/a |
x |
|
|
D.33 |
Conformance test directions |
Required only for IAB type 1-H |
x |
x |
n/a |
|
D.34 |
OTA coverage range |
x |
x |
x |
|
|
D.37 |
The rated carrier OTA IAB power, Prated,c,TRP |
n/a |
x |
x |
|
|
D.44 |
Single-band RIB or multi-band RIB |
c |
x |
n/a |
|
|
D.46 |
Maximum number of supported carriers per operating band |
c |
x |
x |
|
|
D.48 |
Other band combination multi-band restrictions |
c |
x |
n/a |
|
|
D.53 |
OTA REFSENS RoAoA |
n/a |
x |
x |
|
|
D:63 |
Total maximum number of supported carriers in multi-band operation |
c |
x |
n/a |
|
|
NOTE 1: Manufacturer declarations applicable per IAB requirement set were marked as "x". Manufacturer declarations not applicable per IAB requirement set were marked as "n/a". For declarations marked as ‘c’, related conducted declarations in TS 38.176-1 [3] apply. |
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Table 4.13-2: Test requirement applicability for TX requirements
|
Tx requirement |
Test efficiency optimization applicable |
Test requirement applicability (Note 1) |
|
|
Radiated transmit power |
Yes |
FR2: IAB-DU |
|
|
OTA output power |
Yes |
FR2: IAB-DU |
|
|
OTA Output power dynamics (only for IAB-DU) |
No |
(Note 3) |
|
|
OTA Output power dynamics (only for IAB-MT) |
No |
(Note 3) |
|
|
OTA Transmitter OFF power |
Yes |
||
|
OTA Transient period |
Yes |
||
|
IAB-DU OTA Frequency Error |
No |
||
|
IAB-MT OTA Frequency Error |
No |
||
|
OTA Modulation quality |
Yes |
||
|
OTA Time alignment error (only for IAB-DU) |
No |
(Note 3) |
|
|
OTA Occupied bandwidth |
Yes |
||
|
OTA ACLR |
Yes |
FR2: IAB-DU (Note 2) |
|
|
OTA Operating band unwanted emission |
Yes |
FR2: IAB-DU |
|
|
OTA Transmitter spurious emission |
General requirement |
Yes |
FR2: IAB-DU |
|
Additional spurious emissions |
Yes |
FR2: IAB-DU |
|
|
Co-location with other base stations |
|||
|
OTA transmitter intermodulation |
Yes |
FR2: IAB-DU |
|
|
NOTE 1: Test requirement applicability defines how to select whether IAB-DU or IAB-MT test requirement is applied. In case no applicability definition is provided or the applicability definition test requirement is the same for IAB-DU and IAB-MT, either can apply. NOTE 2: Local Area IAB-MT type 2-O is required to use IAB-DU test requirement. NOTE 3: Test efficiency optimization is not applicable and therefore original test requirement applies. |
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Table 4.13-3: Test requirement applicability for Rx requirements
|
Rx requirement |
Test efficiency optimization applicable |
Test requirement applicability (Note 1) |
|
|
OTA sensitivity |
Yes |
FR2: IAB-DU |
|
|
OTA reference sensitivity |
Yes |
FR2: IAB-DU |
|
|
OTA Dynamic range (only for IAB-DU) |
No |
(Note 2) |
|
|
OTA Adjacent channel selectivity |
Yes |
IAB-MT |
|
|
OTA In-band blocking |
Yes |
IAB-MT |
|
|
OTA Out-of-band blocking |
General requirement |
Yes |
|
|
Co-location requirement |
Yes |
||
|
OTA Receiver spurious emissions |
Yes |
FR2: IAB-DU |
|
|
OTA Receiver intermodulation |
Yes |
IAB-MT |
|
|
OTA In-channel selectivity (only for IAB-DU) |
No |
(Note 2) |
|
|
NOTE 1: Test requirement applicability defines how to select whether IAB-DU or IAB-MT test requirement is applied. In case no applicability definition is provided or the applicability definition test requirement is the same for IAB-DU and IAB-MT, either can apply. NOTE 2: Test efficiency optimization is not applicable and therefore original test requirement applies. |
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