Section: 5.8.2 Conditions for NR sidelink communication/discovery/positioning operation
Content: The UE shall perform NR sidelink communication/positioning operation only if the conditions defined in this clause are met: 1> if the UE's serving cell is suitable (RRC_IDLE or RRC_INACTIVE or RRC_CONNECTED); and if either the selected cell on the frequency used for NR sidelink communication/discovery/positioning operation belongs to the registered or equivalent PLMN as specified in TS 24.587[ Vehicle-to-Everything (V2X) services in 5G System (5GS); Stage 3 ]  [57] or TS 24.554[ Proximity-services (ProSe) in 5G System (5GS) protocol aspects; Stage 3 ]  [72] or the UE is out of coverage on the frequency used for NR sidelink communication/discovery/positioning operation as defined in TS 38.304[ NR; User Equipment (UE) procedures in Idle mode and in RRC Inactive state ]  [20] and TS 36.304[ Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode ]  [27]; or 1> if the UE's serving cell (RRC_IDLE or RRC_CONNECTED) fulfils the conditions to support NR sidelink communication/discovery/positioning in limited service state as specified in TS 23.287[ Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services ]  [55]; and if either the serving cell is on the frequency used for NR sidelink communication/discovery/positioning operation or the UE is out of coverage on the frequency used for NR sidelink communication/discovery/positioning operation as defined in TS 38.304[ NR; User Equipment (UE) procedures in Idle mode and in RRC Inactive state ]  [20] and TS 36.304[ Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode ]  [27]; or 1> if the UE has no serving cell (RRC_IDLE).