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Gprs Core Network

In: Other Topics

Submitted By anand28410124
Words 9684
Pages 39
-------------------------------------------------
Technical overview
See also: S Core NetworkGPR
2.5G and 3G systems rely on double core network infrastructures; traditional circuit-switched network nodes (switching points) for telephony, and packet-switched GPRS nodes for various data services. Dedicated nodes handle the SMS service. 4G systems are expected to be all-IP, meaning that the core network is based on IP routers.[citation needed]
[edit]Services offered
GPRS extends the GSM Packet circuit switched data capabilities and makes the following services possible: * SMS messaging and broadcasting * File manipulation functions * Active process block process * "Always on" internet access * Multimedia messaging service (MMS) * Push to talk over cellular (PoC) * Instant messaging and presence—wireless village * Internet applications for smart devices through wireless application protocol (WAP) * Point-to-point (P2P) service: inter-networking with the Internet (IP) * Point-to-Multipoint (P2M) service: point-to-multipoint multicast and point-to-multipoint group calls
If SMS over GPRS is used, an SMS transmission speed of about 30 SMS messages per minute may be achieved. This is much faster than using the ordinary SMS over GSM, whose SMS transmission speed is about 6 to 10 SMS messages per minute.
[edit]Protocols supported
GPRS supports the following protocols:[citation needed] * Internet protocol (IP). In practice, built-in mobile browsers use IPv4 since IPv6 is not yet popular. * Point-to-point protocol (PPP). In this mode PPP is often not supported by the mobile phone operator but if the mobile is used as a modem to the connected computer, PPP is used to tunnel IP to the phone. This allows an IP address to be assigned dynamically to the mobile equipment. * X.25 connections. This is typically used for…...

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