GPRS

General packet radio service (GPRS) is a technology that allows sending and receiving data faster when compared with the use of technology or circuit switched data CSD.Sering also called 2.5G technology GPRS system can be used to transfer data (in packets data) related to email, data, picture (MMS) and search (browsing) internet.layanan GPRS mounted on the type of phone type GSM and IS-136, although the GPRS network is separate from the GSM.
GPRS is a packet-based transmission system for GSM that uses the principle tunneling.ia offer higher data rate is roughly tinggi.Laju data up to 160 kbps as compared with 9.6 kbpsyang tersaklar circuit can be provided by GSM.
In terms of cost pricing only refers to the volume penggunaan.Penggunaan being charged in a hook to the number of bytes sent or received, without memperdulkan panggilan.Dengan GPRS thus possible to more selected by the customer from the IP service.
In theory, GPRS promises to speed starting from 56 kbps to 115 kbps, so the internet access, multimedia data transmission computer, notebook and laptop computers. But in its implementation, it is highly dependent on the factor the following factors:
1.Konfigurasi and allocation of time slots at the level of BTS.
2.Software required.
3. Supported features and applications that use mobile phones.
This explains why at certain times and certain locations GPRS access was slow, even slower than aksesCSD which has a speed of 9.6 kbps.
The main components of the GPRS network are:
1. GGSN (GPRS support node geteway): Gateway GPRS penghubungjaringan kejaringan internet.fungsi of this component is as an interface to the PDN (public data network), routing information, network screening, and address mapping.
2. SGSN (Serving GPRS support node): gate connecting the GPRS network. K omponen serves to deliver data packets to MS, updates the subscriber to the HLR, regestrasi new customers.
3. PCU: BBS dilevel component that connects the terminal kejaringan GPRS.
SGSN: duty: 1. Send packets to the mobile station (MS) in an area of 2. Sending a number of questions to the HLR to obtain subscriber profile data (GPRS mobility management) 3.mendeteksi MS-new GPRS service in an area which it is responsible (location management) 4. SGSN is connected to BSS in a GSM frame relay connection through PCU (packet control unit) in the BSC.
GGSN duty: 1. As interface to IP networks exsternal such as the public Internet or a mobile service provider.2.Meng update the routing information from the PDU (protocol data units) to the SGSN.
GPRS uses packet switch communication system (shifting packages) as a way to mentranmisikan data.packet switch is a system where data will be transmitted is divided into small portions (packets) and then transmitted and converted back into data semula.Transmisi done through the PLMN (public land mobile network) by using an IP backbone