16.12.6.0 General

The service continuity procedure is applicable for the mobility cases of path switch from indirect to direct path and from direct to indirect path when the L2 U2N Remote UE and L2 U2N Relay UE belong to the same gNB or different gNB. This procedure is also applicable for the mobility cases of path switch from indirect to indirect path when the two L2 U2N Relay UEs belong to the same gNB or different gNBs. For inter-gNB path switching, the source gNB decides to trigger path switching and the path switch type.

If the target path is multi-hop, it is assumed that all L2 U2N Relay UEs along the target path are in the RRC_CONNECTED. However, if the target path is a single-hop, the target U2N Relay UE can be in any RRC state.