Research and Design (R&D) activities have always produced new innovations, and led to the development of the next generation of wireless systems. The third generation (3G) of mobile telephony promises to provide important features, in higher data speeds, up to around 2Mbits/second, teleconferences with video transmission, web browsing, etc. With the IMT-2000 standardization, 3G mobile systems provide full roaming functions, allowing integration with GSM systems. International Mobile Telecommunications-2000 (IMT-2000) is a global standard that defines the parameters, specifications and recommendations for third generation mobile technology. IMT-2000 provides a framework for access to the 3G system, linking the various terrestrial, wireless and satellite systems.

The National Institute of Standards and Technology (NIST) has been involved in 3G systems since 1998 and its role in this work of analysis and modeling of more advanced systems, in collaboration with the Wireless Communication Technologies Group (WCTG), will be an ongoing process and will not be stop on 3G systems. NIST’s goal is to play an important role in the future development of wireless communication systems, primarily contributing to:

– Develop software testing methods to help R&D of future wireless communication systems.

– Evaluate the performance of various wireless communication system technologies.

– Develop new technologies and improved methodologies in wireless communication systems.

– Make a significant contribution in improving national and international standards in wireless communication systems.

Third-generation (3G) wireless communication was primarily developed to provide high-speed data connectivity to cell phone users. The technology was conceived in the early stages of the Internet boom, when it was thought that a feature needed to be established to give cell phone users the facility to access data and multimedia services at an appropriate rate. In many countries around the world, the required spectrum has been auctioned off to different service providers for fees ranging in the millions of dollars.

IMT-2000 defines 3G as a wireless communication system, providing data rates from 144 kbps to over 2 Mbps, depending on the speed of the cell phone. The definition has been created by the International Telecommunication Union (ITU) and is called International Mobile Telecommunications 2000 (IMT-2000). Of course, there are a number of technologies that could meet the characteristics of the 3G system, with variations on the existing 2G GSM technology and this modification, or improvement on 2G, is often referred to as 2.5G. This enhancement has brought General Packet Radio Service (GPRS) and Enhanced Data Rates for GSM Evolution (EDGE) into the 2G system, with CDMAone (IS95a) systems defining a number of evolutionary technologies, which are grouped and classified under CDMA2000.

Very briefly, CDMAone is an all wireless system description based on TIA/EIA IS-95 (Telecommunications Industry Association/Electronic Industries Association Interim Standard – 95), which was first published in July 1993. CDMA2000 describes the family of 3G wireless communications that uses code division multiple access (CDMA), which is a multiple access system for digital radio to transmit voice, data, and signaling data, such as a dialed telephone number, between systems. cell phones and base stations.

There is confusion as to the difference between 3G and 2.5G systems. Although most CDMA2000 systems are technically modifications of the existing 2G architecture, they are offered as 3G systems on the market. GSM on the other hand, although capable of 3G performance, is being classified as 2.5G systems. The new standard was incorporated into GSM 2G systems, classifying it as 2.5G, primarily to meet 3G requirements, while the original 3G system uses a completely different technology to achieve the same thing. This extension of the 2G system to 2.5G is called Wideband-CDMA (W-CDMA), a technology used for the transmission of data and voice.

Efforts are being made to offer more global standard advanced services based on CDMAone technology, which is basically the GSM 2G system. This will allow the market to provide services as the market demands it. The efforts of the CDMA Development Group (CDG) are leading to full capabilities of 3G systems and are now aggressively concentrating on enabling accelerated development of CDMA2000, one of which is the 3G standard.

The GPRS services provided by 2G systems are similar to those provided by 3G services, but 3G data services are a step up from the GPRS services we know. The main difference is the faster data transfer rates available on 3G systems, offering up to 384 kilobits per second, which is 7 times faster than standard dial-up systems. With 3G systems, you can do everything you want to do, but in a much better way, much faster and from anywhere. The main advantage with 3G wireless communication system is that you can have a high volume of calls and it supports you for multimedia data applications like video and photography.

3G system has brought many advantages in the application of wireless communication system and some of the main features include:

– Video calls: while calling someone, you can see the person on the other end in real time. As long as both phones support 3G, you don’t need to imagine what the caller or the person you called looks like, because you can see it on your cell phone screen while you are having a conversation.

– Getting Information and News – You can search for Information and News from the Internet, using your phone as a modem with your PC or laptop. You can use your favorite search engines to find the information you are looking for, the daily news, stocks and shares, or virtually any other information to keep you up to date.

– Email: While you’re away from your office, there may be times when you want to send an email to your business partner or someone else. You can use your cell phone and directly send such emails. You can also check your inbox to find out if you have any important emails. The 3G-enabled cell phone can also be used as a modem with your laptop or connected to your PDA.

– Games – Since the appearance of mobile telephony in the market, games have always been of great interest to mobile telephony users. Games have become more interactive and would still get better with the advancement of technology. For those who play these games on the cell phone for recreational purposes or to pass the time, they would benefit more from the 3G system, which allows these games to be downloaded at any time and from almost anywhere.

– Movie: the quality of the movie through the mobile system is greatly improved with the speed and video quality of the 3G system. Now it is possible to see the trailers, movie reviews and interviews related to various movies. You can also download mp3 music, wallpapers and enter contests through your 3G-enabled cell phone.

– Sport: With the improved graphics capability, you can now see the highlights of the sports you are interested in and also have access to the scorecards of the sports you are interested in.

– Music: 3G system allows you to download various streams of music, videos and interviews. It allows you to compose your own ringtone through the keyboard of your cell phone.

The need to have a website has become imperative, so much so that if a business doesn’t have a website, it’s as good as the business doesn’t exist. With the introduction of 3G systems, this has become more real, and you can access the Internet from your 3G-enabled cell phone anytime, from virtually anywhere.

Use of mobile phones abroad. In 99% of the world, the local cellular service standard is called GSM. We use this in the states as well. When combined with a SIM CARD (which usually goes under the phone’s battery), the phone can communicate and the SIM CARD also contains the phone number and memory for prepaid credit. Fees can be extremely low using this system. For example, on 99% of all SIM CARDS, incoming calls are free and calls to states may cost a little. For example, from the UK to the US 7 cents per minute, from Israel 22 cents, from Australia 27 cents. Yes, US cents! There are even prepaid service providers in the US today that offer rates of 10 cents per minute to call anywhere in the US on any type of phone. No contracts, no credit card checks, no bills. Prepaid always means no minimums, no contracts, no obligations. You only pay for calls made. You will need an UNLOCKED tri-band or quad-band GSM unlocked phone. You can buy factory unlocked phones and SIM cards for more than 170 or all 193 countries in the world from http://www.planetomni.com Tel. # 800-514-2984.