What are interfaces in GPRS?
GPRS Interfaces to the GSM NSS
| Interface | Network location |
|---|---|
| Gf interface | Between an SGSN and an EIR |
| Gi interface | IP based interface between the GGSN and a public data network (PDN) either directly to the Internet or through a WAP gateway. |
| Gmb interface | Between the GGSN and the BM-SC |
| Gn interface | Between two GSNs in the same PLMN |
What is the role of GR components in GPRS?
The SGSN, for example, requests user addresses from the GPRS register (GR), keeps track of the individual MSs’ location, is responsible for collecting billing information (e.g., counting bytes), and performs several security functions such as access control.
What is Gx interface?
The Gx Interface is located between the Policy and Charging Enforcement function (PCEF) and the Policy and Charging Rules Function (PCRF). Gx reference point is used to provision, modify and remove rules for policy and charging control from the PCRF to the PCEF.
What is MME in 4G LTE?
Mobility Management Entity(MME) is a key component of the standards-defined Evolved Pack Core (EPC) for LTE. It provides mobility session management for the LTE network and supports subscriber authentication, roaming and handovers to other networks.
What is the difference between GR interface and GPRS interface?
For more understanding for his post, You should be familiar with GPRS Network Architecture. The Gr interface exists between the SGSN and the HLR. While the Gs interface exists between the SGSN and the MSC/VLR. Both of those interfaces are based on the ‘SS7’ protocol.
How to test GPRS GR and WLAN AAA GR interfaces in UMTS networks?
Test Serving GPRS Support Node (SGSN) Gr and WLAN AAA Gr’ interfaces in UMTS networks with our Home Location Register (HLR) Emulator or our Home Subscriber Server (HSS) Emulator. Use the Gr Interface application on our SGSN node to test the capacity and performance of an HSS or HLR.
What is GR interface in SGSN?
The Gr interface is the interface between the SGSN and an HLR. The SGSN uses the Gr interface to get the subscription data of a certain user from the HLR, and to update the HLR with the location information of the user. Later, we will go deeper into Gr interface.
What is the difference between GI and GR interfaces?
The Gi interface is the interface between the GGSN and the PDN. The Gr interface is the interface between the SGSN and an HLR. The SGSN uses the Gr interface to get the subscription data of a certain user from the HLR, and to update the HLR with the location information of the user.