A.2 Privacy class selection rule for pre Rel-6 mechanism
23.2713GPPFunctional stage 2 description of Location Services (LCS)Release 17TS
In pre Rel-6 network, the users privacy profile (SLPP) is stored HLR/HSS and is downloaded to the serving MSC/SGSN. If more than one privacy class are subscribed or in case Service Types and at least one privacy class are subscribed, privacy class for an MT-LR is selected by the serving MSC/SGSN according to the flow diagram shown in Fig. A-1.
An MT-LR may be applied to more than one privacy class or to Service Types and one or more privacy classes. In this case, looser privacy setting shall be selected. The privacy settings to be compared are the results of the privacy checks for each applicable class and Service Type.
Note 1: The client type indicates PLMN Operator service, and the client is within or associated with the VPLMN.
Note 2: The client type indicates value added service; the UE originated call/session to the requesting LCS client is established and the address associated to the LCS client used by the UE in call/session set up matches with that contained in the location request.
Note 3: The client type indicates value added service.
Note 4: The looser privacy setting shall be selected.
Figure A.1: Privacy Class selection flow diagram
If the user subscribes Service Types, once that the privacy class has been selected according to figure A.1, the resulting privacy setting shall be compared with the result of Service Type privacy checking, and the looser condition shall be applied to the MT-LR, provided that the LCS client was authorized by the UE user to get location information.