20.2.1 General

29.1203GPPMobile Application Part (MAP) specification for Gateway Location Register (GLR)Release 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

Two types of subscriber data management procedures exist in the Mobile Application Part

i) Subscriber Deletion;

ii) Subscriber Data Modification.

No requirements have been identified for the Subscriber creation and subscriber data interrogation procedures.

The subscriber deletion and subscriber data modification procedures are initiated by the OMC (see figures 20.2.1/1, 20.2.1/2, 20.2.1/3 and 20.2.1/4).

+—–+ +—–+ +——+ +——-+
│ VLR │ │ GLR │ │ HLR │ │ OMC │
+—–+ +—–+ +——+ +——-+
│ │ │1. │
│ │2. +< – – – – – – – │
│2. +<—————│ │
+<—————│ │ │
│ 3.│ │ │
+—————>│ 3.│ │
│ +—————>│ 4.│
│ │ + – – – – – – – >│
│ │ │ │

1) Delete Subscriber.

2) MAP_CANCEL_LOCATION.

3) MAP_CANCEL_LOCATION_ACK.

4) Subscriber Deleted.

Figure 20.2.1/1: Subscriber deletion procedure

In the subscriber deletion procedure the subscriber data should be removed from the VLR and from the HLR. The HLR uses the MAP_CANCEL_LOCATION service.

+—–+ +—–+ +——+ +——-+
│SGSN │ │ GLR │ │ HLR │ │ OMC │
+—–+ +—–+ +——+ +——-+
│ │ │1. │
│ │2. +< – – – – – – – │
│2. +<—————│ │
+<—————│ │ │
│ 3.│ │ │
+—————>│ 3.│ │
│ +—————>│ 4.│
│ │ + – – – – – – – >│
│ │ │ │

1) Delete GPRS Subscriber.

2) MAP_CANCEL_LOCATION.

3) MAP_CANCEL_LOCATION_ACK.

4) GPRS Subscriber Deleted.

Figure 20.2.1/2: Subscriber deletion procedure for GPRS

In the subscriber deletion procedure the subscriber data should be removed from the SGSN and from the HLR. The HLR uses the MAP_CANCEL_LOCATION service.

1) Modify Subscriber Data.

2) MAP_CANCEL_LOCATION, MAP_INSERT_SUBSCRIBER_DATA or
MAP_DELETE_SUBSCRIBER_DATA.

3) MAP_CANCEL_LOCATION_ACK, MAP_INSERT_SUBSCRIBER_DATA_ACK or
MAP_DELETE_SUBSCRIBER_DATA_ACK.

4) Subscriber Data Modified.

Figure 20.2.1/3: Subscriber data modification procedure

1) Modify Subscriber Data.

2) MAP_CANCEL_LOCATION, MAP_INSERT_SUBSCRIBER_DATA or
MAP_DELETE_SUBSCRIBER_DATA.

3) MAP_CANCEL_LOCATION_ACK, MAP_INSERT_SUBSCRIBER_DATA_ACK or
MAP_DELETE_SUBSCRIBER_DATA_ACK.

4) Subscriber Data Modified.

Figure 20.2.1/4: Subscriber data modification procedure for GPRS

In the subscriber data modification procedure the subscriber data is modified in the HLR and when necessary also in the VLR or in the SGSN. The HLR initiates either the MAP_INSERT_SUBSCRIBER_DATA, MAP_DELETE_SUBSCRIBER_DATA or MAP_CANCEL_LOCATION service depending on the modified data.