A.1 IAB-DU and IAB-MT Reference measurement channels
38.176-23GPPIntegrated Access and Backhaul (IAB) conformance testingNRPart 2: radiated conformance testingRelease 17TS
A.1.1 IAB-DU Reference measurement channels
The Annex A in TS 38.141-2 [6] applies to IAB-DU.
A.1.2 IAB-MT Reference measurement channels
A.1.2.1 Fixed Reference Channels for reference sensitivity level, ACS, in-band blocking, out-of-band blocking and receiver intermodulation (QPSK, R=1/3)
The parameters for the reference measurement channels are specified in tables A.1.2.1-1 for FR1 reference sensitivity level, ACS, in-band blocking, out-of-band blocking, receiver intermodulation, OTA sensitivity, OTA reference sensitivity level, OTA ACS, OTA in-band blocking, OTA out-of-band blocking, and OTA receiver intermodulation.
The parameters for the reference measurement channels are specified in tables A.1.2.1-2 for FR2 OTA reference sensitivity level, OTA ACS, OTA in-band blocking, and OTA out-of-band blocking.
Table A1.2.1-1: FRC parameters for FR1 reference sensitivity level for IAB-MT.
|
Reference channel |
G-FR1-A1-22 |
G-FR1-A1-23 |
G-FR1-A1-25 |
G-FR1-A1-26 |
|
Subcarrier spacing (kHz) |
30 |
60 |
30 |
60 |
|
Allocated resource blocks |
11 |
11 |
51 |
24 |
|
CP-OFDM Symbols per slot (Note 1) |
9 |
9 |
9 |
9 |
|
Modulation |
QPSK |
QPSK |
QPSK |
QPSK |
|
Code rate (Note 2) |
1/3 |
1/3 |
1/3 |
1/3 |
|
Payload size (bits) |
736 |
736 |
3368 |
1608 |
|
Transport block CRC (bits) |
16 |
16 |
16 |
16 |
|
Code block CRC size (bits) |
– |
– |
– |
– |
|
Number of code blocks – C |
1 |
1 |
1 |
1 |
|
Code block size including CRC (bits) (Note 3) |
752 |
752 |
3384 |
1624 |
|
Total number of bits per slot |
2376 |
2376 |
11016 |
5184 |
|
Total symbols per slot |
1188 |
1188 |
5508 |
2592 |
|
NOTE 1 : DL-DMRS-config-type = 1 with DL-DMRS-max-len = 1, DL-DMRS-add-pos = pos2 with = 2, = 6 and 9 as per Table 7.4.1.1.2-3 of TS 38.211 [7]. NOTE 2 : MCS index 4 and target coding rate = 308/1024 are adopted to calculate payload size for receiver sensitivity NOTE 3 : Code block size including CRC (bits) equals to in sub-clause 5.2.2 of TS 38.212 [8]. |
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Table A1.2.1-2: FRC parameters for FR2 reference sensitivity level for IAB-MT.
|
Reference channel |
G-FR2-A1-21 |
G-FR2-A1-22 |
G-FR2-A1-23 |
|
Subcarrier spacing (kHz) |
60 |
120 |
120 |
|
Allocated resource blocks |
66 |
32 |
66 |
|
CP-OFDM Symbols per slot (Note 1) |
9 |
9 |
9 |
|
Modulation |
QPSK |
QPSK |
QPSK |
|
Code rate (Note 2) |
1/3 |
1/3 |
1/3 |
|
Payload size (bits) |
5632 |
2792 |
5632 |
|
Transport block CRC (bits) |
24 |
16 |
24 |
|
Code block CRC size (bits) |
– |
– |
– |
|
Number of code blocks – C |
1 |
1 |
1 |
|
Code block size including CRC (bits) (Note 3) |
4248 |
2104 |
4248 |
|
Total number of bits per slot |
14256 |
6912 |
14256 |
|
Total symbols per slot |
7128 |
3456 |
7128 |
|
NOTE 1: DM-RS configuration type = 1 with DM-RS duration = single-symbol DM-RS, additional DM-RS position = pos2 with l0 = 2, l = 6 and 9 as per Table 7.4.1.1.2-3 of TS 38.211 [7]. NOTE 2: MCS index 4 and target coding rate = 308/1024 are adopted to calculate payload size. |
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