5G System (5GS); User plane Location Services (LCS) protocols and procedures; Stage 3
The present document specifies the LCS user plane protocol (LCS-UPP) to support the Location Services in the 5G System (5GS) as specified in 3GPP TS 23.273 [2] for user plane positioning between the UE and the LMF.
The present document also specifies the user plane positioning connection management (UPP-CM) protocol to support the LCS secured user plane connection between the UE and the LMF.
The present document also specifies the LCS user plane protocol (LCS-UPP) to support location event reporting over an LCS secured user plane connection between the UE and the LCS client or the AF.
The present document also defines the message format, message contents, error handling and system parameters applied by the LCS-UPP and the UPP-CM protocol for supporting Location Services in 5GS.