What are interfaces of GPRS?
GPRS Interfaces to the GSM NSS
| Interface | Network location |
|---|---|
| Gr interface | Between the SGSN and the HLR |
| Gs interface | Between the SGSN and the MSC/VLR |
| Lg interface | Between the SGSN and the GMLC, used for location services |
| Partial Source: GPRS Core Network (Wikipedia) |
What are the various types of interfaces that are provided with GPRS system architecture?
The GPRS element interfacing with the NSS is SGSN. The important interfaces to the NSS are the SGSN-HLR (Gr), SGSN-EIR (Gf), and SGSN-MSC/VLR (Gs). The other interfaces are implemented through the intra-PLMN backbone network (Gn), the inter-PLMN backbone network (Gp), or the external networks (Gi).
How does a MS get registered with the GPRS network?
The SGSN is the node that is serving the MS; it is responsible for GMM. It delivers packets to the MSs and communicates with the HLR to obtain the GPRS subscriber profile. It manages the registration of the new mobile subscribers in order to keep a record of their LA for routing purposes.
What are GSM interfaces?
GSM stands for Global System for Mobile Communication and is an open, digital cellular technology used for transmitting mobile voice and data services. A GSM network is made up of multiple functional entities and interfaces that facilitate sending and receiving of signaling and traffic messages.
How the packets are routed in GPRS?
Data Packet Routing It routes the external data network protocol packet encapsulated over the GPRS backbone to the SGSN currently serving the MS. Network-initiated message when the MS roams to another GPRS network – This path begins at the host of visited network and ends at the GPRS mobile device.
What is the interface between SGSN and GGSN in a GPRS network?
Multiple SGSNs and GGSNs within a GPRS network are referred to collectively as GPRS Support Nodes (GSNs). The connection between the SGSN and the GGSN is enabled through a protocol called the GPRS Tunneling Protocol (GTP). The connection between the GGSN and the PDN is enabled through the Internet Protocol (IP).
Which is the system in GPRS that connects to external networks?
Gateway GPRS Support Node (GGSN) The Gateway GPRS Support Node acts as an interface and a router to external networks. It contains routing information for GPRS mobiles, which is used to tunnel packets through the IP based internal backbone to the correct Serving GPRS Support Node.
What is LTE air interface?
The LTE Air Interface course offers a complete understanding of the radio interface in Long Term Evolution (LTE) technology. The course focuses on the physical channels structure and their processing in both FDD and TDD mode of LTE. …
What is the architecture of GPRS network?
GPRS – Architecture. GPRS architecture works on the same procedure like GSM network, but, has additional entities that allow packet data transmission. This data network overlaps a second-generation GSM network providing packet data transport at the rates from 9.6 to 171 kbps.
What is a GPRS support node?
The Serving GPRS Support Node is responsible for authentication of GPRS mobiles, registration of mobiles in the network, mobility management, and collecting information on charging for the use of the air interface. The internal backbone is an IP based network used to carry packets between different GSNs.
What is the difference between GSM and GPRS?
GPRS architecture works on the same procedure like GSM network, but, has additional entities that allow packet data transmission. This data network overlaps a second-generation GSM network providing packet data transport at the rates from 9.6 to 171 kbps.
What hardware is required to access GPRS services?
New Mobile Station is required to access GPRS services. These new terminals will be backward compatible with GSM for voice calls. A software upgrade is required in the existing Base Transceiver Station (BTS). The Base Station Controller (BSC) requires a software upgrade and the installation of new hardware called the packet control unit (PCU).