Can sombody tell me what is GPRS, and for which purpose it use, and how is it setup in mobile?

Answer 1

GPRS (General Packet Radio Services) is a data connection method that is charged by megabytes used rather than time connected. Depending on your h/set you may be able to access on XHTML (which is a 'mobile' version of the internet) or, if you have a PDA device, you will be able to browse as you would on a home PC. As for setting it up, check out your networks website as 99% of the time, there is a link to send the settings to your phone.

Answer 2

Short for General Packet Radio Service, a standard for wireless communications which runs at speeds up to 115 kilobits per second, compared with current GSM (Global System for Mobile Communications) systems' 9.6 kilobits.

GPRS, which supports a wide range of bandwidths, is an efficient use of limited bandwidth and is particularly suited for sending and receiving small bursts of data, such as e-mail and Web browsing, as well as large volumes of data.

Answer 3

GPRS ( General Packet Radio Service) a standard for wireless communications .GPRS, which supports a wide range of bandwidths, is an efficient use of limited bandwidth and is particularly suited for sending and receiving small bursts of data, such as e-mail and Web browsing, as well as large volumes of data.


In Mobile it is used for accessing internet. You need to have GPRS enabled handset and talk to your service provider to activate it in your mobile.

Answer 4

General Packet Radio Service (GPRS) is a mobile data service available to users of GSM mobile phones. With that you can surf the net off your phone. The easiest way to get it is call your cell phone service provider and ask them to send you the data. Save it then use and enjoy :)

Answer 5

GPRS can be used to browse thru the intrnet using your mobile phone.. setting it up depends on the line you're using. usually you can call them and they can give you instructions how to activate your GPRS

Answer 6

General Packet Radio Service (GPRS) is a mobile data service available to users of GSM mobile phones. It is often described as "2.5G", that is, a technology between the second (2G) and third (3G) generations of mobile telephony. It provides moderate speed data transfer, by using unused TDMA channels in the GSM network. Originally there was some thought to extend GPRS to cover other standards, but instead those networks are being converted to use the GSM standard, so that is the only kind of network where GPRS is in use. GPRS is integrated into GSM standards releases starting with Release 97 and onwards. First it was standardized by ETSI but now that effort has been handed onto the 3GPP.

GPRS basics
GPRS is different from the older mik-mac Circuit Switched Data (or CSD) connection included in GSM standards.In CSD, a data connection establishes a circuit, and reserves the full bandwidth of that circuit during the lifetime of the connection. GPRS is packet-switched which means that multiple users share the same transmission channel, only transmitting when they have data to send. This means that the total available bandwidth can be immediately dedicated to those users who are actually sending at any given moment, providing higher utilisation where users only send or receive data intermittently. Web browsing, receiving e-mails as they arrive and instant messaging are examples of uses that require intermittent data transfers, which benefit from sharing the available bandwidth.

Usually, GPRS data are billed per kilobytes of information transceived while circuit-switched data connections are billed per second. The latter is to reflect the fact that even during times when no data are being transferred, the bandwidth is unavailable to other potential users.

GPRS originally supported (in theory) IP, PPP and X.25 connections. The last has been typically used for applications like wireless payment terminals although it has been removed as a requirement from the standard. X.25 can still be supported over PPP, or even over IP, but doing this requires either a router to do encapsulation or intelligence built into the end terminal. In practice, mainly IPv4 is used. PPP is often not supported by the operator, while IPv6 is not yet popular.

GPRS speeds and profile
Packet-switched data under GPRS is achieved by allocating unused cell bandwidth to transmit data. As dedicated voice (or data) channels are setup by phones, the bandwidth available for packet switched data shrinks. A consequence of this is that packet switched data has a poor bit rate in busy cells. The theoretical limit for packet switched data is 171.2 kbit/s (using 8 time slots and CS-4 coding). A realistic bit rate is 30–80 kbit/s, because it is possible to use max 4 time slots for downlink. A change to the radio part of GPRS called EDGE (sometimes called EGPRS or Enhanced GPRS however it actually stands for Enhanced Data rates for GSM Evolution) allows higher bit rates of between 160 and 236.8 kbit/s. The maximum data rates are achieved only by allocation of more than one time slot in the TDMA frame. Also, the higher the data rate, the lower the error correction capability. Generally, the connection speed drops logarithmically with distance from the base station. This is not an issue in heavily populated areas with high cell density, but may become an issue in sparsely populated/rural areas.

The GPRS Capability Classes
Class A
Can be connected to GPRS service and GSM service (voice, SMS), using both at the same time. Such devices are known to be available today. See List of Class A GPRS Phones.
Class B
Can be connected to GPRS service and GSM service (voice, SMS), but using only one or the other at a given time. During GSM service (voice call or SMS), GPRS service is suspended, and then resumed automatically after the GSM service (voice call or SMS) has concluded. Most GPRS mobile devices are Class B.
Class C
Are connected to either GPRS service or GSM service (voice, SMS). Must be switched manually between one or the other service.
A true Class A device may be required to transmit on two different frequencies at the same time, and thus will need two radios. To get around this expensive requirement, a GPRS mobile may implement the dual transfer mode (DTM) feature. A DTM-capable mobile may use simultaneous voice and packet data, with the network coordinating to ensure that it is not required to transmit on two different frequencies at the same time. Such mobiles are considered to be pseudo Class A. Some networks are expected to support DTM in 2007. function of the number of TDMA time slots assigned, which is the lesser of (a) what the particular cell supports and (b) the maximum capability of the mobile device expressed as a GPRS Multislot Class.

GPRS Multislot Classes GPRS speed is a direct function of the number of TDMA time slots assigned, which is the lesser of (a) what the particular cell supports and (b) the maximum capability of the mobile device expressed as a GPRS Multislot Class.

The most common GPRS Multislot Classes are:

Class 2
Minimal GPRS implementation
Class 4
Modest GPRS implementation, 50% faster download than Class 2
Class 6
Modest implementation, but with better uploading than Class 4
Class 8
Better implementation, 33% faster download than Classes 4 & 6
Class 10
Better implementation, and with better uploading than Class 8, seen in better cell phones and PC Cards
Class 12
Best implementation, with maximum upload performance, typically seen only in high-end PC Cards.

GPRS Services
GPRS upgrades GSM data services providing:

MMS - Multimedia Messaging Service
Internet Applications for Smart Devices through WAP
Point-to-point (PTP) service: internetworking with the Internet (IP protocols).
Short Message Service (SMS): bearer for SMS.
Future enhancements: flexible to add new functions, such as more capacity, more users, new accesses, new protocols, new radio networks.

GPRS in practice
Telephone operators have priced GPRS relatively cheaply (compared to older GSM data transfer, CSD and HSCSD) in many areas, such as Finland. Some mobile phone operators offer flat rate access to the Internet and some other mobile phone operators base their tariffs on data transferred, usually rounded off per 100 kilobyte.

During its heyday, the mid 2000's, typical rates for GPRS service varied wildly, ranging from EUR €1 per megabyte to over €20 per megabyte.


The maximum speed of a GPRS connection (as offered in 2003) is the same as modem connection in an analog wire telephone network, about 4–5 kB/s (depending on the phone used). Latency is very high; a round-trip ping being typically about 600–700 ms and often reaching one second round trip time. GPRS is typically prioritized lower than speech, and thus the quality of connection varies greatly.

In order to set up a GPRS connection for a wireless modem, a user needs to specify Access Point Name (APN), optionally a user name and password, and very rarely an IP address, all provided by the network operator.

Answer 7

its the internet for your phone