Content for TS 38.176-2 Word version: 18.5.0
A Reference measurement channels
B Environmental requirements for the BS equipment
C Test tolerances and derivation of test requirements
D Calibration
E OTA measurement system set-up
G Transmitter spatial emissions declaration
H Characteristics of the interfering signals
I TRP measurement procedures
J Propagation conditions
K Measuring noise close to noise-floor
L In-channel TX tests for IAB-DU
M In-channel TX tests for IAB-MT
N General rules for statistical testing
$ Change history
A (Normative) Reference measurement channels p. 265
A.1 IAB-DU and IAB-MT Reference measurement channels p. 265
A.1.1 IAB-DU Reference measurement channels p. 265
A.1.2 IAB-MT Reference measurement channels p. 265
A.2 IAB-DU Fixed Reference Channels p. 266
A.2.1 Fixed Reference Channels for PUSCH performance requirements (QPSK, R=193/1024) p. 266
A.2.2 Fixed Reference Channels for PUSCH performance requirements (16QAM, R=434/1024) p. 271
A.2.3 Fixed Reference Channels for PUSCH performance requirements (16QAM, R=658/1024) p. 272
A.2.4 Fixed Reference Channels for PUSCH performance requirements (64QAM, R=567/1024) p. 275
A.2.5 PRACH Test preambles p. 277
A.3 IAB-MT Fixed Reference Channels p. 277
A.3.1 Fixed Reference Channels for PDSCH performance requirements (16QAM) p. 277
A.3.2 Fixed Reference Channels for PDSCH performance requirements (64QAM) p. 278
A.3.3 Fixed Reference Channels for PDSCH performance requirements (256QAM) p. 279
A.3.4 Fixed Reference Channels for PDCCH performance requirements p. 280
A.3.5 Fixed Reference Channels for CSI reporting requirements p. 280
B (Normative) Environmental requirements for the BS equipment p. 283
B.1 General p. 283
B.2 Normal test environment p. 283
B.3 Extreme test environment p. 283
B.3.1 General p. 283
B.3.2 Extreme temperature p. 283
B.4 Vibration p. 284
B.5 Power supply p. 284
B.6 Measurement of test environments p. 284
B.7 OTA extreme test methods p. 285
B.7.1 Direct far field method p. 285
B.7.2 Relative method p. 285
C Test tolerances and derivation of test requirements p. 287
C.1 Measurement of transmitter p. 288
C.2 Measurement of receiver p. 294
C.3 Measurement of performance requirements p. 296
D (Normative) Calibration p. 298
D.1 General p. 298
E OTA measurement system set-up p. 299
E.1 Transmitter p. 299
E.1.1 Radiated transmit power, OTA output power dynamics, OTA transmitted signal quality, OTA occupied bandwidth, and OTA transmit ON/OFF power (IAB type 2-O) p. 299
E.1.2 OTA IAB output power, OTA ACLR, OTA operating band unwanted emissions p. 300
E.1.3 OTA spurious emissions p. 300
E.1.4 OTA co-location emissions, OTA transmit ON/OFF power (IAB type 1-O) p. 301
E.1.5 OTA transmitter intermodulation p. 302
E.2 Receiver p. 302
E.2.1 OTA sensitivity and OTA reference sensitivity level p. 302
E.2.2 OTA dynamic range p. 303
E.2.3 OTA adjacent channel selectivity, general OTA blocking, and OTA narrowband blocking p. 303
E.2.4 OTA blocking p. 304
E.2.5 OTA receiver spurious emissions p. 305
E.2.6 OTA receiver intermodulation p. 306
E.2.7 OTA in-channel selectivity p. 306
E.3 Measurement set-up IAB-MT and IAB-DU performance requirements p. 307
F (Normative) Void
G Transmitter spatial emissions declaration p. 311
G.1 General p. 311
G.2 Declarations p. 312
H (Normative) Characteristics of the interfering signals p. 313
H.1 Characteristics of the interfering signals for IAB-DU p. 313
H.2 Characteristics of the interfering signals for IAB-MT p. 313
I (Normative) TRP measurement procedures p. 314
J (Normative) Propagation conditions p. 315
J.1 Static propagation condition p. 315
J.2 Multi-path fading propagation conditions p. 315
J.2.1 Delay profiles p. 315
J.2.1.1 Delay profiles for FR1 p. 317
J.2.1.2 Delay profiles for FR2 p. 318
J.2.2 Combinations of channel model parameters p. 318
J.2.3 MIMO channel correlation matrices p. 318
J.2.3.1 MIMO correlation matrices using Uniform Linear Array (ULA) p. 319
J.2.3.1.1 Definition of MIMO correlation matrices p. 319
J.2.3.1.2 MIMO correlation matrices at high, medium and low level p. 320
J.2.3.2 Multi-antenna channel models using cross polarized antennas p. 322
J.2.3.2.1 Definition of MIMO correlation matrices using cross polarized antennas p. 322
J.2.3.2.2 Spatial correlation matrices at IAB-MT and IAB-DU sides p. 323
J.2.3.2.2.1 Spatial correlation matrices at IAB-MT side p. 323
J.2.3.2.2.2 Spatial correlation matrices at IAB-DU side p. 323
J.2.3.2.3 MIMO correlation matrices using cross polarized antennas p. 323
J.2.3.2.4 Beam steering approach p. 324
J.3 Physical signals, channels mapping and precoding p. 325
J.3.1 General p. 325
K Measuring noise close to noise-floor p. 327
L (Normative) In-channel TX tests for IAB-DU p. 328
M (Normative) In-channel TX tests for IAB-MT p. 328
M.0 Applicability p. 328
M.1 General p. 328
M.2 Basic principles p. 328
M.2.1 Output signal of the TX under test p. 328
M.2.2 Ideal signal p. 329
M.2.3 Measurement results p. 329
M.2.4 Measurement points p. 329
M.3 Pre-FFT minimization process p. 331
M.4 Timing of the FFT window p. 331
M.5 Resource element TX power p. 332
M.6 Post-FFT equalisation p. 333
M.7 EVM p. 335
M.7.0 General p. 335
M.7.1 Averaged EVM (TDD) p. 335
N (Normative) General rules for statistical testing p. 337
$ Change history p. 337
