There are several systems developed for 3G technology, which explains why people should be more aware about the changes and details of their new gadgets. 3G devices can cost a lot of money, so you should learn how to check the specs and platforms first if these work very well for your personal functions and work. UMTS is one of the most common systems. You will find that it is also one of the most ideal to use if ever you choose to invest.

Defining UMTS

UMTS stands for Universal Mobile Telephone System. It is one of the 3G or third generation mobile systems created and developed inside the framework of the ITU IMT-2000. It presents the new generation of broadband multi-media mobile telecommunications technology. The area covered by service providers will be on a global scale, through the FLMTS type or Future Land Mobile Telecommunications Services. 

This is now known as IMT2000. The coverage will be given through a mixture of cell sizes starting from in-building Pico Cells to the satellite Global Cells. These provide services to the far areas of the globe. The UMTS is not an alternative of 2G or second generation technologies like DCS1800, GSM and CDMA that constantly changes to their optimum potential.

The Various Kinds

There are several networks types featured by 3G technology. ITU suggestion ITU-R M.1457 indicates 5 kinds of 3 G radio interfaces. Inclusions are the IMT-2000 DECT assisted by the DECT forum, the IMT-2000 TDMA Single Carrier, which is also called UWC-136 or Edge, assisted by UWCC, the IMT-2000 CDMA that spreads directly, also called UTRA FDD which includes WCDMA in Japan. UMTS is developed by Three GPP, IMT-20000 CDMA, also called CDMA2000 3x developed by 3GPP and IMT-2000 CDMA TDD which is also called UTRA TDD and TD-SCDMA. 

The Core Networks

There are various types of 3G core networks. The group IMT-2000 of 3 G systems involves 3 kinds of core network technology. The first one is the Internet Protocol based in the future to be specific, the GSM based protocols over SS7 protocols for signalling and the ANSI-41 based or IS-634 protocols for sending signals. 

CDMA2000 and UMTS Comparison

If you want to compare UMTS and CDMA2000, you can begin by telling their origins. Both were developed individuals and are separate 3G standards approved by ITU. CDMA2000 1xRT and future CDMA2000 3x were enhanced to be backward compatible with CDMA One. The two 1x types are similar in terms of bandwidth and chip rate. Successful deployment in America requires backward compatibility. UMTS was enhanced primarily for nations having GSM networks. 

These prime countries are prioritized, since they agree to free new frequency ranges for the networks of UMTS. The benefit is that there are a lot of new capacities for operators because of the new range of frequency. 3GPP manages the standard development and keeps the core network very close to GSM network as much as possible. 

Compatibility 

UMTS cellular phone units are not intended to be backward compatible with the systems of GSM. There are two flavors available for UMTS, namely FDD and TDD. FDD is implemented first. There are also a number of harmonizations done between the systems, such as pilot issues and chip rate. Always consider your intended functions and level of experience before choosing the right kind to buy and use.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone

Individuals will need to try a 3G mobile phone to know how the tools and applications work. There are several high-speed networks available today, depending on your job and personal needs. The assortment of mobile units can make it quite difficult for individuals to choose. You should understand the main types or flavors of 3G technology. The inclusions are UMTS and CDMA2000, these offer a variety of effects. Here are some details on the technology.

The Main Types

The two main kinds of Three G include UMTS or Universal Mobile Telephone Service and CDMA2000. UMTS is being brought out over several available GSM networks. CDMA2000 takes 3 G rates and speeds to the available CDMA networks. The two flavors have a couple of high-speed offshoots, voice-plus-data 1xEV-DV and data-only 1xEV-DO. These are available in most cities, especially nations who first launched Three G technology. Speeds of the two flavors are almost the same as the regular DSL. More and more developments on faster technologies, namely 3.5G and 4G are also underway.

Individuals will need a 3 G phone to determine how fast each high-speed network works. The beginning may be slow, but there are also so many available 3 G handsets today from the present carriers. All mobile phones provide support for the recent 3 G networks, appearing in different styles. 

Knowing More About the Term

The name 3G is usually associated with mobile phone specifications and details. 3G is one, if not the most popular cellular technology available today, with several millions of people all over the globe converting. The support of the feature allows users to acquire broadband services, without having to get wired connections. You can receive the information transfer speed, beginning from 144 Kbps up to 2.4 Mbps. The 3G mobile technology is also more popularly called 3G, which is embedded in most high end models only. 

Knowing More About the Kinds

UMTS is a type of 3G technology that uses Wideband Code Division Access. The term is also known as W-CDMA which stands for a certain standard. CDMA 1x EV-DO is needed to take the speed of the current 3G network to CDMA. 

Individuals from all over the world can easily get the 2 kinds of Three G technology, by acquiring new handsets and starting to work on functions like sending and receiving email messages, browsing the internet and doing video conferences. You can acquire the transmission speed similarly to ADSL in the entry level. The new models are available in a wide array of designs and colors. Some of the most popular in its class include the BlackBerry 7130e, Motorola Razor V3x and Samsung Z510.

What to Expect

With the new 3 G technology, you can expect full motion videos, 3D gaming, faster online surfing and streaming music and music videos. There is also on-demand video and video conferencing with the upcoming 3.5G. If you expect 4G to come very soon, you can experience high quality streaming video and video conferencing.  

Compared to older technologies like 1G, 2G and 2.5G, you can only expect to get simple features and tools like voice only or analogue capabilities, MMS, normal web browsing, ring tone downloads, basic games, short video and audio clips, push to talk features, conference calls, SMS and caller ID. The price of each technology will differ. Three G generally is pricier than previous models and platforms.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone

Smartphones were introduced just a few years ago, and are now considered as a staple device in 3G among individuals from all over the globe. There are several features and applications that you have to know about to invest in the right product. There are so many gadgets now available in stores and web sites. Prices will vary depending on the brand, tools and manufacturer. Here are more details about the smartphone.

Describing the Phone

A smartphone is a mobile phone unit that provides advanced and modern capabilities, usually with PC-like functions. The smartphone has no industry standard definition. For a number of people, a smartphone is a cellular unit that operates a full operating system software, giving a standard platform and interface for developers of applications. 

For other people, a smartphone is just a regular cellular phone with very modern features such as the internet, email and ebook reader capacities. There are also other features such as external USB keyboard, a built-in full keyboard and VGA connector. It is simply a small computer with a 3G phone capacity. The rest of the mobile phone market has been outgrown by smartphones. These gadgets have big screens, open operating systems, powerful processors and abundant memories. 

Agreements in the Industry

There is truly no real meaning or definition of the smartphone in the industry. The descriptions have changed significantly over time. Smartphones according to a number of experts are a lot different from regular mobile units in a couple of basic ways, namely what these can do and how these are built. Other meanings apply various stresses on the two factors. 

As far as smartphones are concerned, it is only a matter of evolving from one phone to the most recent. The real device at a certain period may even become smaller in size, thereby losing its essence or being as a phone. The device might be referred to as integrated. The device may be considered as invisible as possible between the things the consumer has and what he or she wants to do. 

The Operating System

A lot of devices that consider smartphones at present use a very identifiable operating system, usually with the capacity to add applications for the purposes of entertainment, enhanced data processing and connectivity. These are significantly better compared to regular phones that only support starter applications such as Java games. The 3G smartphone applications may be enhanced by the creators of the tool, via the network operator or by other software developers from the third party, because the operating system is open.

On the Features

In the case of features, a lot of smartphones back up full featured email capacities having the functionality of a full personal organizer. Other functionalities may involve an added interface like a small QWERTY keyboard, a built-in camera, a D-pad or touch screen, an accelerometer, contact management, the capacity to read business documents in different formats like Microsoft Office and PDF, a touch screen or a D-pad, media software for playing music, viewing video clips and photos, internet browsers and even just safe access to company mail. 

A basic feature among many 3G smartphones is a contact list with the ability to keep as many contacts as possible that the memory permits, compared to standard phones with a limit to the highest number of contacts that can be kept.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone

3G, just like other types of technologies also come in various kinds. You can take advantage of the many features and developments by simply knowing how one type differ from the other. You can save more money by investing only in the right product that actually offers you all the right tools and applications for personal use and work. You also need to know a bit about the existing networks to know how much speed you are actually getting. 

The Types

The two main types of 3 G are UMTS or Universal Mobile Telephone Service and CDMA 2000. UMTS is spread out over the present GSM networks, while CDMA2000 takes 3 G speeds to CDMA networks. The two types have a couple of high-speed misses, the voice-plus-data 1xEV-DV and the data-only 1xEV-DO, which are currently available in chosen suburban regions and major cities. 

More expansion is underway in the near future. The speeds for both UMTS and CDMA2000 are estimated to be about the same as a regular DSL. AT&T has also released a 3.5G speed network in 2006. This is called HSDPA, which stands for High-Speed Downlink Packet Access. This begins at a speed of about 1.8 Mbps up to an excellent 14.4 Mbps. More devices and networks are being developed at present, introducing the 4G technology, such as WiMax.

3-G Capability

To get the benefits and features of 3G technology, individuals will need a Three G phone or smartphone. The start was kind of slow, but there is now a wide array of handsets, featuring 3G technology from different carriers. All the mobiles will try to provide support for the recent 3 G networks. These appear in different styles, ranging from trendy to stylish. Some of the best examples include the Samsung SPH-M520 and LG Venus VX8800. The best 3.5G phones are supported by HSDPA phones, such as the AT&T Tilt and the LG CU720 Shine. Prices of the products will differ, depending on the available features and the brand.

The Different Technologies 

Both PC and laptop users can get benefits from 3 G networks for mobile broadband, excluding a Wi-Fi network. Individuals will only need a carrier-supplied PC Card. There are PC cards available for both EV-DO and HSDPA networks. Knowing the evolution will help you choose the right product and assess how much you are actually getting.

1G technology include AMPS, the speed is still very slow compared to today’s standards with voice only analogue feature. The 2G technology includes iDen, CDMA and GSM, with speeds less than 29 Kbps. Included features are the push-to-talk, voice, conference calls, caller ID and SMS. 2.5G technology includes EDGE, GPRS and 1x RTT, featuring speeds from 30 Kbps to 90 Kbps. The included features are MMS, web browsing, images, short video and audio clips, applications, ring tone downloads and games. 

Recent Technologies

3G technology includes UMTS and 1xEV-DO ranging from 144 Kbps up to 2 Mbps. Some of the included features are full-motion video, quick web browsing, 3D games and streaming music. 3.5G technology includes HSDPA which is an upgrade for UMTS and 1x EV-DV, with speeds ranging from 384 Kbps up to 14.4 Mbps. Features include video conferencing and on-demand video. 4G and more features speeds from 100 Mbps up to 1 Gbps.

Some of the outstanding features include high quality video conferencing, high quality streaming video and voice-over-IP telephony.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone

3G technology also comes in various forms and platforms. Understanding the major ones will help you decide which one is the right tool. You should also tell the technical details, to know if you are getting the right kind of efficiency and accessibility. Getting information from the internet other various sources will never be as convenient as fast, since 3G is the newest available. There are new developments and changes as well to get you ahead.

Knowing WCDMA or UMTS

W-CDMA wideband code-division multiple-access is among the major technologies that implement the 3 G or third generation cellular systems. This is founded on the radio access technique suggested by the ETSI Alpha Group. The details and specifications were finalized in 1999. The implementation of W-CDMA is going to be a technical challenge due to the complexity and versatility. The sophistication of the of the systems of W-CDMA can be seen from various aspects. 

These are namely the complexity of the overall system, computation complexity of the receiver and the complexity of ever single algorithm. W-CDMA link-level simulations or more than 10 times the compute intensive compared to 2G simulations. In the interface of W-CDMA, the different interface users can immediately transmit at varying information rates, with the data rates even varying in time. Networks of the UMTS are required to support every 2G service, plus new services and applications. 

The Technical Details

As for the FDD technical summary, the frequency band will range from 1920 MHz up to 1980 MHz and 2110 MHz and 2170 MHz or frequency division duplex. The minimum frequency band needed is 2 x 5 MHz. The frequency re-use is 1. Carrier spacing is between 4.4 MHz and 5.2 MHz. The most number of voice channels on 2 x 5 MHz is 96 with a spreading factor of 256 UL and AMR or 7.95 Kbps and 98 with a spreading factor of 128 UL and AMR of 12.2 Kbps. 

Other Specs

The voice coding includes AMR codecs ranging from 4.75 kHz up to 12.2 kHz, GSM EFR is at 12.2 kHz. SID is also included at 1.8 kHz. The channel coding includes convolutional coding with turbo code for high rate data. The duplexer required is 190 MHz separation with asymmetric connection supported. Tx and Rx isolation is MS:55db and BS:80dB. The Receiver is Rake, while receiver sensitivity is Node B.

More Information 

Data type for the device is packet and circuit switch. Modulation is QPSK and pulse shaping is root raised cosine, rolling off at 0.22. The chip rate is 3.84 Mcps while the channel raster is 200 kHz. Maximum user data rate on the physical channel is 2.3 Mbps with a spreading factor of 4, and parallel codes of 3 DL / 6 UL, with limited interference. HSPDA will provide data speeds going as fast as 8 to 10 Mps and 20 Mbps for MIMO systems. The channel it rate is 5.67 Mbps with a frame length of 10 ms or 38400 chips. 

There are 15 slots or frames, and 2560 chips. Handovers are soft and softer, plus a hard interfrequency. The power control period has a time slot with a rate of 1500 Hz. Power control step size is 0.5, 1, 1.5 and 2 dB while power control range is UL 80 dB and DL at 30 dB.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone

Nowadays, people all over the world can enjoy the benefits of 3 G technology. Just a few years back, 2G was the norm, and before that, more “crude” processes of accessibility and the like. The networks have evolved significantly, as the largest nations of the world work nonstop to continue to deliver the best services to consumers. You can learn more about the process by checking how 2G technology moved on to 3 G. Here are the details. 

The 2G Network

Initially, 2G networks were created mainly for slow transmission and voice data. Because of the quick changes in the expectations of users, these no longer meet the requirements today in terms of wireless connection. The movement and evolution from 2G to 3 G technology can be divided into several phases, namely GPRS, EDGE and pure 3G.

On GPRS

The first big step in the move to 3G happened through the launching and launching of General Packet Radio Service or GPRS. The cellular services, mixed with GPRS resulted to 2.5G. GPRS was capable of giving data rates ranging from 56 kbit/s up to a maximum of 114 kbit/s. This can be used for services like WAP or Wireless Application Protocol access, MMS or Multimedia Messaging Service, SMS or Short Message Service and internet communication services like World Wide Web access and email. 

The data transfer of GPRS is usually charged for each megabyte of traffic being transferred, while the data communication via the usual circuit switching is charged by the minute of connection period, regardless of whether the consumer actually used the capability or is just in idle mode. 

GPRS is a top-effort packet switched service, compared to circuit switching, where there is a given QoS or Quality of Service is certified during the connection for non-mobile users. It gives medium speed data transfer, via the use of idle Time division multiple access or TDMA channels. Before, there used to be some believe to stretch GPRS to take over other standards. Instead, the networks are usually changed to use the standard of GSM, making GSM the new release. The original standard was conducted by the ETSI or European Telecommunications Standards Institute, but is now the 3GPP or 3rd Generation Partnership Project. 

The EDGE

The GPRS networks have changed significantly to EDGE networks, through the presentation of 8PSK encoding. Enhanced information rates for EDGE or GSM Evolution, IMT Single Carrier or IMT-SC and Enhanced GPRS is a reverse-compatible digital mobile phone technology, allowing improved data transmission rates, as an extension over the standard GSM. EDGE can be counted as a 3G radio technology, involved in ITU’s 3 G description, but is usually frequently referred to as 2.75G. EDGE was launched on GSM networks, starting in 2003, by Cingular now at the start in the United States.

Standardization

3GPP standardized EDGE as it belonged in the GSM group. It is considered as an upgrade that gives a potential 3-fold boost in the capacity of GPRS and GSM networks. The specification gets bigger data rates by altering to very sophisticated processes of coding, particularly 8PSK, inside the GSM timeslots. EDGE can be applied in various packet switched applications, like the internet, other multimedia and video.

Pure 3 G is the introduction of UMTS technology and networks from EDGE networks. As of the present, more work on the development of the 4G is still underway.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone

There are different platforms or types of Three G technology. Each manufacturer has created and developed some of the most innovative products and mobile handsets. The CDMA2000 is one of the 3 major types. It has different features and tools also that will surely give you a whole new experience, unlike other technologies before it. Here are the details on how to make the most out of the specification. 

Introduction

The CDMA2000 specification was created and developed by the Third Generation Partnership Project 2 or 3GPP2, which is a partnership that consists of 5 telecommunication standard bodies: TTC and ARIB in Japan, TTA in Korea, TIA in North America and CWTS in China. CDMA2000 has been implemented to a lot of networks as an evolutionary step from CDMAOne. CDMA2000 gives a full backward compatibility with IS-95B. 

CDMA2000 is not contained only into a single IMT-2000 and, although managers have the ability to overlay ACDMA2000 1x system. The system backs 144 Kbps at present, with data rates running up to 307 Kbps in the near future, over the other present CDMAOne network.

Evolving the Technology

CDMA2000 1xEV is the other name of the evolved CDMA2000. This technology will be implemented via a number of steps, namely the 1xEV-DV and 1xEV-DO. 1xEV-DO which represents 1x Evolution Data Only. 1xEV-DV represents 1x Evolution Data and Voice. The two 1xEV CDMA2000 evolution steps will use a carrier standard 1.25 Mhz. 1xEV-DO will most likely be available for the operators CDMA2000 during 2002. The solutions for 1xEV-DV were made available in 2004. 

CDMA2000 3x and CDMA2000 1x EV-DO are approved by ITU and IMT-2000 Three G basics. CDMA2000 3x is a portion of what the ITU has called IMT-2000 CDMA MC or Multi Carrier. This uses a lower than 5 MHz spectrum via 3x 1.25 MHz channels to provide speeds of more than 2 Mbps. 

The Technical Summary

As for the summary of the CDMA2000, the frequency band can be any type or existing and. The minimum frequency band needed for 1x is 2 x 1.25 MHz. For 3x, the required is 2 x 3.75 Mhz. Chip rate for 1x is 1.2288. For 3x, chip rate is 3.6864 Mcps. The maximum user data rate for 1x is 144 Kbps at present and 307 Kbps in the near future. As for 1xEV-DO, the max rate is 384 Kbps to 2.4 Mbps. The frame length is 5 ms, 10 ms or 20 ms. As for power control rate, it is at 800 Hz. The spreading factors are 4 256 UL. 

On WCDMA

W-CDMA in 3 G is known as wideband code division multiple access. It is one of the main technologies used for the implementation of 3 G cellular systems. It is founded on the radio access method give by ETSI Alpha group with the features and specifications finalized in 1999. The implementation of W-CDMA will cover very technical details. The complexity of the systems can be seen from various angles. These include the complexity of the receiver, the complexity of the overall system and the complexity of the single algorithm. 

In W-CDMA, the interface allows users of 3 G to instantly send and get various data rates. UMTS networks will need the support of all current 2G services and several new services and applications. You should consider if this will be the right technique for you.

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Technorati Tags: 3 G, 3g, cell phone, mobile phone