What protocol does GPRS use?

GTP is the primary protocol used in the GPRS core network. It is the protocol which allows end users of a GSM or UMTS network to move from place to place whilst continuing to connect to the Internet as if from one location at the GGSN.

Is GPRS a communication protocol?

GPRS is also known as GSM-IP that is a Global-System Mobile Communications Internet Protocol as it keeps the users of this system online, allows to make voice calls, and access internet on-the-go.

Which modulation is used for GPRS?

GMSK modulation
GPRS modulation scheme GPRS builds on the basic GSM structure. It uses the same signal format having 200 kHz channel bandwidths. It also has the same modulation scheme and using GMSK modulation.

Which is the main protocol that transfers packets in a GPRS core network?

GPRS Tunnelling Protocol is the defining IP-based protocol of the GPRS core network. Primarily it is the protocol which allows end users of a GSM or WCDMA network to move from place to place while continuing to connect to the Internet as if from one location at the Gateway GPRS support node (GGSN).

What is the interface betalen SGSN and GGSN in a GPRS network?

Gp interface is defined between two GSNs of different PLMN for exchanging the user profile and other signaling information between a SGSN and GGSN of another area. Gf interface is used between SGSN and EIR to query the IMEI information if a MS tries to register with the network.

What is the interface 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).

What modulation is used in GSM?

Gaussian Minimum Shift Keying (GMSK)
The technology behind the Global System for Mobile communication (GSMTM) uses Gaussian Minimum Shift Keying (GMSK) modulation a variant of Phase Shift Keying (PSK) with Time Division Multiple Access (TDMA) signalling over Frequency Division Duplex (FDD) carriers.

What is GTP C and GTP-U?

GTP-C supports transport of control packets in IPv4 format. GTP-U— Transports user data within the core GPRS network and between the Radio Access Network (RAN) and the core network. GTP-U supports IPv4 and IPv6 user data, but transport is IPv4.

What is GSM Sim?

GSM is the most widely adopted technology digital mobile network. Network carriers such as AT and T-Mobile use GSM. If a carrier uses GSM, that means that users can remove their SIM card from a device and move it to another mobile device with all the same data and contacts on it.

What is PCU in GPRS system?

Part of a GPRS BSS product, the PCU provides an interface between the SGSN and the radio network using frame relay technology.

What is PCU in GPRS install?

The Packet Control Unit is a device found within a GPRS network which is logically associated with a BSC (Base Station Controller). The PCU is responsible for the radio related aspects of GPRS when connected to a GSM network and lies between the BTS (Base Transceiver Station) and the SGSN (Serving GPRS Support Node).

What is GPRS GSM?

GSM is basically the standard-bearer of 2G technology. GPRS is basically the standard-bearer of 2.5G technology. Frequency Bands. The GSM system majorly makes use of the 1800 and 900 MHz (Megahertz) frequency bands. The GPRS system majorly makes use of 1900, 1800, 900, and 750 MHz frequency bands.

What is the maximum speed of GPRS?

How Fast is GPRS? Traditionally, GPRS (2.5G) speeds are quoted over 2G networks; over 2G GPRS can theoretically transmit around 120 kilobits per second. Due to real-world conditions, you can usually expect 20 – 50 kbps.

What is meant by GGSN?

The Gateway GPRS Support Node, abbreviated as GGSN, is a node acting as an extension for the SGSN (see description for MSC) in GPRS networks to connect a GPRS network to an external data network (e.g., Internet).

How does SNDCP work with GPRS?

SNDCP interfaces to the Internet Protocol at the top, and to the GPRS-specific Logical Link Control (LLC) protocol at the bottom. In the spirit of the GPRS specifications, there can be many implementations of SNDCP, supporting protocols such as X.25.

What is The SNDCP protocol?

SNDCP, Sub Network Dependent Convergence Protocol, is part of layer 3 of a GPRS protocol specification. SNDCP interfaces to the Internet Protocol at the top, and to the GPRS-specific Logical Link Control (LLC) protocol at the bottom.

What are the GPRS protocols used for?

In addition to the protocols used to carry GMM (GPRS Mobility Management) information across the Gb interface; namely LLC (Logical Link Control) and BSSGP (Base Station Subsystem GPRS Protocol), a further protocol exists which is used to transfer data between the mobile and the SGSN as a result of the activation of a PDP Context.

What are SM and GMM layers in GPRS?

As shown in figure, SM (Session Management) and GMM (GPRS Mobility Management) layers are depicted which are used for signaling. SNDCP (Sub Network dependent convergence protocol) is used for data. Above these layers there reside IP and Application layers. The data from SNDCP and GMM will go through LLC, RLC, MAC and PHY layers.