16.21.3.2 Path Failure Report

The L2 MP Remote UE in RRC_CONNECTED performs Uu RLM (as described in clause 9.2.7).

When the L2 MP Remote UE detects Uu Radio Link Failure (RLF) on the direct path, the L2 MP Remote UE triggers path failure reporting through the indirect path via a RRC message if split SRB1 is configured and the indirect path is not suspended. Otherwise, RRC connection re-establishment is initiated.

When the L2 MP Remote UE using PC5 indirect path detects PC5 Radio Link Failure (RLF) and/or Uu link failure on the indirect path, the L2 MP Remote UE triggers path failure reporting through the direct path via a RRC message, if the direct path is not suspended.

When the L2 MP Remote UE using N3C indirect path detects N3C link failure and/or Uu link failure on the indirect path, the L2 MP Remote UE triggers path failure reporting through the direct path via a RRC message, if the direct path is not suspended.