3GPP 38.300 v19.3.0 — the document's own text
9.3.4.2 Measurements
Inter RAT measurements are performed for UTRA.
For a UE configured with UTRA Inter RAT measurements, a measurement gap configuration is always provided when:
- The UE only supports per-UE measurement gaps; or
- The UE supports per-FR measurement gaps and at least one of the NR serving cells is in FR1.