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Initially, the mobile band technologies were easy to understand. Analog data transferred to tours at the speed of data, regardless of the carrier. However, the mobile industry has become more complex with acronyms, speeds and data transfer technologies that confuse even the most mobile-savvy. In this article, I will explain the differences between some of these acronyms buzz-word and mobile data systems, so you can become a more informed consumer.

3 G explained

The 3 G standard has been adopted in 2002 for transmitting voice and data support to 200 kilobytes per second (Kbps). It was the first mobile transmission standard in support of voice and data. The 3 G band covers several different standards such as the global system for Mobile Communications (GSM), General Packet Radio Service (GPRS), rate of data enhanced for GSM Evolution (EDGE), Universal Standard (UMTS) Mobile telephony and, more recently, the high-speed downlink Packet Access (HSDPA).

Latest 3 G phones use the new package access HSPA (High Speed) to send photos and use the video on mobile networks. HSPA can reach speeds of approximately 3.6 megabits per second (Mbps) data transfer. This provides a much more stable connection and on previous standards much faster transfer speeds.

There are faster standard available called HSPA + which allows speeds of data up to 7.2 Mbps (or a theoretical limit of 168 Mbit/S) that begins to compete with wireline connections speeds that are available in the houses. This technology allows full access to the internet on your mobile device. Devices that support these megabit higher speeds are often marked as 3.5 G devices.

Introduction of 4 G

The new 4 G standard uses switching passed packets IP networks instead of the traditional data transfer connections of previous technologies. This allows voice applications using voice over IP (VOIP) instead of using the protocols of data transfer for telephone calls. The 4 G standard has two provisions:

• Peak data rate should answer at least 100 Mbit/S for liaison and the downlink to the client has been physically mobile high speed train station or the tower. Speeds of 1 Gigabit per second (Gbps) had to be achieved when the client was in a fixed position.


• The channel of bandwidth had to be flexible between 5 and 20 megahertz (MHz) and up to 40 MHz eventually.

In recent years, we have seen the emergence of networks that support 4 G and we are more in line with the standard devices. However, there are also two other "so-called" technologies 4 G are not true G 4 connections because they do not meet the two terms of real G 4. The International Telecommunications Union (ITU) in Geneva seminar, allowed the "4 G" expression to apply to connections LTE and WiMax and of other "Advanced" technology 3 G as HSPA +, which provided a substantial level of improvement on other 3 G networks.

What this means for you, it is that the networks or devices can claim to be 4 G, but could not allow faster data transfer rates you should be able to achieve a true 4 G network.

LTE

LTE has become a popular standard for voice high speed and communication of data on mobile networks. To be LTE, the network must include at least 100 Mbps downlink peak rates, 50 Mbit/S uplink and time Radio (DRB) than 10ms access network round-trip.

Providers such as Verizon and AT & T announced in 2009 to convert their networks to the LTE standard as a move toward higher data transfer speeds. The reason why LTE is popular among these major carriers is the support for flexible bandwidth of carrier of 1.4 Mhz to 20 Mhz and a Duplex of Division of frequency (FDD) and Time Division Duplex (TDD). The standard also provides backward compatibility with older networks such as GSM, UMTS and CDMA.

WiMax

WiMax has been developed by the Institute of Electrical and Electronics Engineers (IEEE), which is the largest professional association for the promotion of technological innovation. He has been given the official designation of 802.16 and was created at the origin of the Wi - Fi technologies, which are typically used in home networks. The standard is based on IP based communication, voice and data communications are sent in the same band. The mobile WiMax wireless broadband standard provides maximum 128 Mbps downlink data rates and 56 of the uplink Mbit/S over 20 Mhz channels.

WiMax is often used in areas where it is currently too expensive to update or install networks wired for broadband access. By eliminating the cost of installation, high speed data services may be provided to these areas using wireless networks that offer the same speed.

WiMax is currently available under the label of Sprint Nextel 4 g Sprint supports speeds of data transfer maximum of 6 Mbps for devices such as the HTC EVO 4 G 4 G. It is important to note that the WiMax devices don't use SIM cards.

Getting Real G 4

Real G 4 connections come to the mobile carriers based on accepted standards two "LTE-Advanced1" and "WirelessMAN-Advanced2". These two were granted to the official designation of IMT-Advanced and describing of true 4 G technologies. A true 4 G connection should give you about three times what the current connections of LTE or WiMax can provide.

These technologies should be completed this year with recommendation ITU - R specifying technical standards further for these technologies of the radio telephone development companies can begin creating of real 4 G devices to meet the standard. Network providers must upgrade their networks to meet the new data transfer rates specified by the standards of the 4 G technology true if they want to offer these higher rates of speed and the lowest latency.

Conclusion

A faster speed is not the only advantage of these new mobile technologies. Better connections, less abandoned calls and coverage areas more are part of these standards as well. In understanding and comparing these technologies, you should be able to determine which carrier and device you must be buying to get the best rates of speed and latency for your money. As these technologies in the future, we should see only speed improvements, reliability and how work mobile networks.