Saturday, November 17, 2007

Available data plan technologies

Wireless phone usually based on the data network operator to connect to the Internet. The technologies of wireless network is known as a data bearer of mobile data. Here is a brief overview of the data available to carriers today plans for wireless services. Given that the vast majority of Nokia handsets based on GSM, I refocus the topic of this blog on GSM-related technologies on this technology.

GSM
The GSM network provides access to the phone (call data). It works the same way as the modem on a PC. The advantage of this technology is that it is available anywhere you can get coverage. However, the disadvantages are the slow data rate (between 9.6 and 13.2 kbit/s) and phone dedicated to the connection. Since the call must be connected throughout the session data, it relies on your air time minutes. If you want to make a voice call, you must first disconnect the data call. All Nokia Series 40 and Series 60 devices support GSM data connection. GSM data connection is known as 2G (second generation).

GPRS
The GPRS network allows the phone to have direct access to the packet data network. The phone does not need to dial calls. This feature allows the phone, always on access to data without the use of airtime minutes. GPRS is known as the 2.5 G (midway between the second and third generation). The data speed of 2.5 G data carriers (between 20 and 40 kbit / s) is also faster than the 2G data carriers. All Nokia Series 40 and Series 60 devices supporting bearer GPRS data.

EDGE
The EDGE network works a bit like the GPRS network, except that EDGE has a much faster pace of data (up to 230 kbps).

UMTS
The UMTS network is the so-called third generation (3G) wireless networking technology. It offers data speeds broadband approximately 384 kbps and higher.

Which data plan that is available to you depends on your wireless operator, your location, and your service plan. GPRS service will be available from all GSM operators where you have the voice of coverage. If your service plan does not include data service, you can call your carrier wireless and added to a monthly fee. The data service is generally determined by the bandwidth you use in a billing period. Most operators also offer flat-rate subscriptions for unlimited data use.

Similar data bearers also exist in CDMA networks and are available on CDMA phones Nokia (Series 40). CDMA unique data carries Carrier Radio Transmission Technology (1xRTT) and the Single Carrier-Evolution Data Only (1xEV-DO). 1 xRTT is typical rates of 70120 kbit/s, and 1xEV-DO has typical downstream speeds of 300-500 kbit/s (with upstream speeds the same as 1xRTT).

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