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Preparing the coming of a new cell phone

May 2 2006
13:53

The functionality of mobile phone depends on its stuffing - from a variety of schemes and payments, providing a particular service. Accordingly, the more parts inside the phone, so it is more universal. However, global manufacturers are trying to still the most away from such a quantitative "truth" and to embark on qualitative changes. Certain hopes are pinned on the concept of SDR (software-defined radio).

Today the most modern cell phones found sometimes up to six chips that provide wireless communication, which convert the information transmitted in electromagnetic waves and vice versa. Each of these chips has a personal mission, he was responsible for its own region - Wi-Fi, GPS or Bluetooth. This, in turn, translates into the need to incorporate accepted formats and standards.

In this regard, beginning 90-ies, the solution being sought, through which you can create a universal chip, and this is one of the priorities for today. Universal chip can be used, especially in some portable devices.

Creation of such a processor - a matter of time, as his prototype, capable of working in a wide range of frequencies - from 800 MHz to 5 GHz, already exists. The scheme was implemented the principle of conventional radio tuner that digitize all the radio signals.

The main difficulty is to then convert the signal back into an analog option for onward transmission.

Search for concentrated mainly around the concept of technological SDR, whereby it becomes possible to design a fully integrated chip capable of receiving waves at any frequency, and if necessary to selectively amplify them.

Experts predict the concept of SDR can find a complete view in the current year. In this regard, manufacturers of mobile systems, including PDAs , smartphones and communicators to show promising development (which, incidentally, praised the U.S. military), sustained interest.

The developers are confident that bring to mind development and to address remaining problems could be only a few years.

However, in this area can schedule intensified efforts, as cellular operators oburevayut new ideas, and implementation of projects, usually inhibited solely because of the limited technical capabilities.

In this regard, opening the possibility of unification of standards and the creation of a wide range of wireless devices based on a single processor, and even entire terminals available including cellular operators, according to a uniform pattern is a breakthrough.

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