The rapid development of mobile technologies has created a set of standards and technical tools that are used in modern networks. A huge number of confusing acronyms, such as 3 or 4g, LTE, HSDPA, WiMax or CDMA, used to refer to various mobile communication standards, introduce the uninitiated into the technical details of the person in the state of sustainable inferiority complex. Sooner or later, when confronted with the need to purchase equipmentto access the Internet, or we trust this matter experts (that are not so stupid), or use their vague perceptions and knowledge about mobile technology, or go in the wake of intrusive, often not very honest advertising. Unfortunately, the result of unskilled approach in many cases become wasted money, poor or no signal, low-speed connections and shattered illusions about the possibilities of modern communication systems. At this time the commissioning of new networks last 4G communication standard for the most part only planned (we're talking about the Russian Federation). Separate networks of mobile broadband LTE or WiMAX are more exotic than common. At the same time, more widely across the country are network the previous generation, which is conventionally called third, or 3G. Mobile Communication 3G (third generation - the third generation) is based on the transmission of data packets. Different technologies of formation of these packages and rules for the use of different channels to access the network and cause the presence of different standards from within the 3G. In total there are five standards, but only two of them most commonly used - is a UMTS (W-CDMA) and CDMA2000 (IMT-MC). They are based on technology - CDMA (Code Division Multiple Access - code division multiple access channels).
Technical details and differences in standards of interest only to specialists - in any way affect their average user is unlikely to be able to. If your district is only one network of 3G, which uses a certain standard, then choose the particular do not have to - it is necessary to use what is there. But the vast horizons for creativity opens up another aspect of mobile communications - the very fact of a network at radio frequencies. 3G networks are concentrated in the frequency range of 2 GHz. These frequencies are subject to the ordinary laws of propagation. Passage of the signal at such frequencies has its advantages and disadvantages, dependent on many external parameters and can be strikingly different in two adjacent, seemingly completely identical sites. The whole point is that radio waves that range consistently apply only to the extent of direct optical visibility. Any obstacle, whether it be a wall of the building, leaves and tree branches, metal, plastic or weaken the signal in the hundreds or thousands of times. So it turns out that the same 3G modem can work with your neighbor is several times faster than you.
The resultant imbalance velocities one is trying to decide differently. Ways to speed up the quality of 3G connections, there are several. Some of them can really help, some are practically useless in certain circumstances, some are simply fraudulent attempts to extract more money from you. In fact, all methods can be divided into hardware, when to increase the connection speed used different hardware and software - to increase the speed using a program-accelerator compound - a so-called "Accelerating 3G modem. Separately, you can select Internet services that offer to increase the speed of the connection using their servers as intermediaries.
Currently, mobile devices with support for Java is a good opportunity to target a "mobile" advertising campaign. This allows clients to customize the advertising service ads to owners of mobile devices with certain software.
