The distinguished quality is reached due to the use of the new multimedia opportunities, the use of the global roaming and high speed data transfer. 3G technology interacts with IP networks, mobile devices. It has two main standards: CDMA 2000 и UMTS.
Fourth generation technology or 4G is significantly improved in comparison with 3G technology. In addition to ten times increased speed, the fourth generation of communication is distinguished by the improved quality of voice communication. The development of 4G technology started in 2000. New frequency ranges increased the data transfer index. It is essential to note that batch communication and channel communication are used for 3G technology while 4G uses only batch data processing (Zheng et al 2009).
Speaking about business in the sphere of communications it is essential to mention that many communication companies use WiMAX technology to provide high speed connection services. They have several reasons for that. First, the 802.16 technologies allow to not only to provide the access to network for new clients but to widen the spectrum of services and occupy new hard-to-reach (Cheng, 2001).
Secondly, wireless technologies is more simple in usage that traditional wire channels. WiMAX technologies are easy in deflation and easy to scale. This factor appears to be very useful, when it is necessary to deflate large network as soon as possible. For example, WiMAX was used to provide the access to the network to the survivors in tsunami in December 2004 in Indonesia. All the communicative infrastructure of the region was destroyed and quick restoration of the communicative services was needed for the whole region. The advantages of WiMAX allow to decrease prices for high speed Internet access services for business structures and private individuals.
When 4G technology became known in the United States in 2009, there were no devices, which could be called 4G specifically. Moreover, the technology,