Content for  TS 23.012  Word version:  18.0.0

The Paging Area function is an optional feature that allows the HLR to be updated with the current Paging Area (PgA) (see clause 2.6). If supported, the HLR shall store the Paging Area received from the VLR in MAP Update Location requests. If the Paging Area parameter is not included in a MAP Update Location request and the VLR has not changed, the HLR shall keep the stored Paging Area. If the Paging Area parameter is not included in a MAP Update Location request and the VLR has changed, the HLR shall delete the stored Paging Area. Sheet 1: The procedure Check_Parameters is specified in TS 23.018. Sheet 1: The procedure Super_Charged_Cancel_Location_HLR is specific to Super-Charger; it is specified in TS 23.116. Sheet 2: The procedure Super_Charged_Location_Updating_HLR is specific to Super-Charger; it is specified in TS 23.116. If subscription data needs to be sent to the VLR, processing continues from the "No" exit of the test "Result=Pass?". Sheet 2: The execution of the test "skip subscriber data update?" is optional and depends on the presence of the relevant indication from the VLR. If no indication is received, then the result of the test is "No". The HLR may additionally skip the procedures Update_Routing_Info and Control_Tracing_HLR if this indication is received from the VLR. Sheet 2: If the HLR supports the Administrative Restriction of Subscribers Access feature and roaming is allowed in the VPLMN then the HLR may check the "Supported RAT Types" received from the VLR against the access restriction parameters. If this check fails then the decision box "Roaming allowed in this PLMN" shall take the exit "No". Sheet 2: If the HLR supports MSISDN-less subscriptions and the subscriber's subscription is MSISDN-less, the test "Subscriber Allowed to Roam into PLMN?" takes the "no" exit e.g. if the VLR is known not to support MSISDN-less operation (see clause 3.6.1.5).