19.1 Location management Procedures

29.0023GPPMobile Application Part (MAP) specificationRelease 17TS

The signalling procedures in this clause support:

– Interworking between the VLR and the HLR and between the VLR and the previous VLR (PVLR) when a non-GPRS subscriber performs a location update to a new VLR service area;

– Interworking between the SGSN, the HLR and the VLR when a subscriber with both GPRS and non-GPRS subscriptions performs a routeing area update in an SGSN and the Gs interface is implemented;

– Interworking between the SGSN and the VLR when a GPRS subscriber performs a routeing area update to a new SGSN service area;

– Interworking between the HLR and the VLR and between the HLR and the SGSN to delete a subscriber record from the VLR or the SGSN;

– Interworking between the VLR and the HLR and between the SGSN and the HLR to report to the HLR that a subscriber record has been purged from the VLR or the SGSN.

The MAP co-ordinating process in the HLR to handle a dialogue opened with the network location updating context is shown in figure 19.1/1. The MAP process invokes a macro not defined in this clause; the definition of this macro can be found as follows:

Receive_Open_Ind see clause 25.1.1.

Figure 19.1/1: Process Location_Management_Coordinator_HLR