* Gy-The on-line charging interface in the GPRS Core Network

ru: GPRS Core Network

The RNC connects to the Circuit Switched Core Network through Media Gateway ( MGW ) and to the SGSN ( Serving GPRS Support Node ) in the Packet Switched Core Network.

Image of the GSM network, showing the BSS interfaces to the MS, NSS and GPRS Core Network

* Network Identifier: Defines the external network to which the Gateway GPRS Support Node ( GGSN ) is connected.

Telenor Montenegro's signal covers a little area of Serbia, which uses GSM and GPRS technology, under the Network Code: 220-07.

GPRS data may be sold either as part of a bundle ( e. g., up to 5 GB per month for a fixed fee ) or on a pay-as-you-use basis.

The GPRS system is an integrated part of the GSM network switching subsystem.

EDGE is standardized by 3GPP as part of the GSM family and it is an upgrade that provides a potential three-fold increase in capacity of GSM / GPRS networks.

The GPRS core network is the central part of the general packet radio service ( GPRS ) which allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet.

The GPRS system is an integrated part of the GSM network switching subsystem.

This is part of layer 3 of a GPRS protocol specification.

It introduces a new technology not found in GPRS, Incremental Redundancy, which, instead of retransmitting disturbed packets, sends more redundancy information to be combined in the receiver.

GPRS uses four coding schemes ( CS-1 to 4 ) while EDGE uses nine Modulation and Coding Schemes ( MCS-1 to 9 ), of which the first four have similar performance ( but not equal ) to GPRS.

GPRS usage is typically charged based on volume of data transferred, contrasting with circuit switched data, which is usually billed per minute of connection time.

In 2005 Orange France becomes the first operator to use a national broadband network for mobile phones combining EDGE, which covers 95 % of the population, 3G, which covers 60 %, and GPRS ( low bandwidth Internet ), which covers 98 %.

This makes HSCSD relatively expensive in many GSM networks and is one of the reasons that packet-switched general packet radio service ( GPRS ), which typically has lower pricing ( based on amount of data transferred rather than the duration of the connection ), has become more common than HSCSD.

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 ).

It does this by carrying the subscriber's data from the subscriber's current serving GPRS support node ( SGSN ) to the GGSN which is handling the subscriber's session.

A GSN is a network node which supports the use of GPRS in the GSM core network.

The packet data protocol ( PDP ; e. g., IP, X. 25, FrameRelay ) context is a data structure present on both the serving GPRS support node ( SGSN ) and the gateway GPRS support node ( GGSN ) which contains the subscriber's session information when the subscriber has an active session.

Within the GPRS core network standards there are a number of interfaces and reference points ( logical points of connection which probably share a common physical connection with other reference points ).

When the station is attached to the GPRS network, the SGSN keeps track of which routing area ( RA ) the station is attached to.

* GPRS Tunnelling Protocol, a group of protocols which carry GPRS data information over the UMTS and GSM networks

Unlike either the Palm i705 and the Palm VII ( which both could only make data connections over the Mobitex pager network ), downloads and uploads were done using comparatively-fast GPRS connections.

The General Packet Radio Service ( GPRS ) is a packet-switched data transmission protocol, which was incorporated into the GSM standard in 1997.

A GPRS connection which is common among GSM mobile phones can be used to share data globally.

* An Internet Service Provider which provides network access via common modem or modem-like devices ( be it PSTN, DSL, cable or GPRS / UMTS ) can have one or more NAS ( network access server ) devices which accept PPP, PPPoE or PPTP connections, checking credentials and recording accounting data via back-end RADIUS servers, and allowing users access through that connection.

Enhanced Data rates for GSM Evolution ( EDGE ) ( also known as Enhanced GPRS ( EGPRS ), or IMT Single Carrier ( IMT-SC ), or Enhanced Data rates for Global Evolution ) is a digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM.

The new GPRS network installed by the Scandinavian company allows faster and permanent connectivity for all mobile users, as well as providing high-speed picture and video messaging for owners of the new range of multi-purpose hand-sets.

The GPRS core network allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet.

Enhanced Data rates for GSM Evolution ( EDGE ), Enhanced GPRS ( EGPRS ), or IMT Single Carrier ( IMT-SC ) is a backward-compatible digital mobile phone technology that allows improved data transmission rates, as an extension on top of standard GSM.

When operating in GPRS / EDGE mode, higher bandwidth radio modulation allows for larger 348 bits frames, and A5 / 3 is then used in a stream cipher mode to maintain confidentiality.

3G allows in most cases realtime multiplayer gaming and is based on technologies faster than GPRS.

Significantly, the model also includes access to a GPRS network that allows the receiving sites to communicate back to the Mindset central server.

Utilising a radio path ( GPRS / GSM ) as the primary signalling path is not only quicker than PSTN but also allows huge cost savings as unlimited amounts of data can be sent at no extra expense.

This was expanded over time to include data communications, first by circuit switched transport, then packet data transport via GPRS ( General Packet Radio Services ) and EDGE ( Enhanced Data rates for GSM Evolution or EGPRS ).

General packet radio service ( GPRS ) is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications ( GSM ).

Newer mobile phone technologies ( e. g., GPRS, I-mode ) also use packet switching.

* GSM with the GPRS packet switched service combines FDD and FDMA with slotted Aloha for reservation inquiries, and a Dynamic TDMA scheme for transferring the actual data.

* General packet radio service ( GPRS )

The GPRS core network provides mobility management, session management and transport for Internet Protocol packet services in GSM and WCDMA networks.

The GGSN is responsible for the interworking between the GPRS network and external packet switched networks, like the Internet and X. 25 networks.

The GGSN converts the GPRS packets coming from the SGSN into the appropriate packet data protocol ( PDP ) format ( e. g., IP or X. 25 ) and sends them out on the corresponding packet data network.

The location register of the SGSN stores location information ( e. g., current cell, current VLR ) and user profiles ( e. g., IMSI, address ( es ) used in the packet data network ) of all GPRS users registered with this SGSN ....

* 3GPP Technical Specification TS 23. 060 GPRS Service Description describes Location management procedures for the packet switched domain.

* GPRS settings to allow the subscriber to access packet services.

APN is used in 3GPP data access networks, e. g. general packet radio service ( GPRS ), evolved packet core ( EPC ).

In packet radio systems such as GPRS / EDGE, it is possible to combine DTX with capacity increase when VoIP is used for telephony.

The IP offers an always on internet access and the DSL offers general packet data GPRS services.

Later was introduced GPRS ( general packet radio service ), which operates on completely different principle.

GPRS Tunneling Protocol ( GTP ) is a group of IP-based communications protocols used to carry general packet radio service ( GPRS ) within GSM, UMTS and LTE networks.