4.16 Requirements for IAB-DU and IAB-MT capable of simultaneous operation

38.176-23GPPIntegrated Access and Backhaul (IAB) conformance testingNRPart 2: radiated conformance testingRelease 17TS

IAB-DU and IAB-MT can be configured as IAB Simultaneous Operation based on declaration. Unless otherwise stated, the requirements in the present specification apply for IAB-MT and IAB-DU of IAB-node configured as IAB Simultaneous Operation. For IAB-DU and IAB-MT simultaneous transmission, the requirements for IAB-DU apply. For IAB-DU and IAB-MT simultaneous reception, the requirements for IAB-MT apply.

For IAB-node in IAB Simultaneous Operation, as detailed in the requirement clause, transmitter requirements apply whatever the type of transmitter considered and for all transmission modes foreseen by the manufacturer’s specification as detailed in the requirement clause.

NOTE: For IAB node operating as simultaneous transmission of IAB-DU and IAB-MT, the manufacturer can provide different declarations on power imbalance between IAB-DU and IAB-MT for verification on Modulation quality and ACLR according to the conformance specification declaration requirements.

For IAB-node in IAB Simultaneous Operation, as detailed in the requirement clause, receiver requirements shall be met for any transmitter setting unless otherwise stated.