Gateway Location Application (GLA) is a DSR Application that retrieves subscriber data stored in Policy Session Binding Repository (SBR) provided by Policy DRA. The GLA is deployed and must be in the same Resource Domain as DA-MPs activated with Policy DRA. No additional Resource Domain configuration is needed specifically for GLA in the DSR GUI.
After a
DA-MP is activated with the GLA, it receives a Request (Get Gateway Request (
GGR)) generated by the Gateway Query Client (
GQC), decodes subscriber information (IMSI or MSISDN), and queries the SBR (via ComAgent within the Gateway Query Server (
GQS) or
DSR). The GLA generates an Answer (Get Gateway Answer (
GGA)) with subscriber information that includes the number of bindings for the subscriber, and the following information is included for each session:
- Access point name
- PCEF FQDN
- Creation timestamp
The GLA is dependent on
Policy DRA to populate data in SBR and thus GLA uses Activation/Deactivation rules in the following conditions:
- The GLA is activated using the same mechanism as Policy DRA. It is activated at the NOAM, and activation is performed so that it activates all SOAMs under a common NOAM.
- GLA cannot be activated unless Policy DRA is activated and PCRF-Pooling has been enabled.
- Policy DRA cannot be deactivated if GLA is activated.
To simplify deployment of GLA, it is piggybacked on Policy DRA's configuration of DA-MPs within its Resource Domain and configuration of ComAgent connections between DA-MPs and SBRs.
If PCRF pooling is enabled with GLA activated, Policy DRA stores all information required by GLA.
