Posts Tagged ‘CDMA2000’

The Evolution of 3G

Written on November 30th, 2009 by MadChasno shouts

The Evolution of 3G

3G is beginning to be standardized because more and more users want to know whether their connectivity is within optimal range. Various tools and options are being featured by various manufacturers all over the world. Perhaps in a few years, individuals will get to experience higher capacities and better efficiency in the form of 4G. Here are some more details about the standardization and what other nations have been up to lately.

The Progression

The standardization of 3G evolution is improving in both the 3GPP2 and 3GPP. The related specifications of 3GPP2 and 3GPP developments are known as UMB and LTE, respectively. Qualcomm has cancelled developments on UMB in November 2008. 3G evolution applies a part that goes further than 3G technologies to boost the performance and functions, as well as create a smoother migration path for users.

There are various ways from 2G to 3G. The main path begins in Europe from GSM once GPRS is added to a given system. From a given point, it is possible to be directed to the UMTS system. The system evolution in North America will begin from TDMA or Time division multiple access, change to EDGE or Enhanced Data Rates for GSM Evolution or EDGE, then finally to UMTS.

The Others

A couple of 3G standards are being used and applied in Japan namely W-CDMA done by NTT DoCoMo. This is FOMA, which is attuned to UMTS, and Softbank Mobile which uses UMTS. CDMA2000, is used by KDDI. The transition for marketing reasons to 3G was finalized in Japan in 2006.

3G, when first introduced in the form of UMTS and HSDPA technology was managed by SETAR in the Caribbean, particularly Aruba in December 2007. The network’s implementation phase was brought out by Alcatel-Lucent. SETAR also implemented a 3G network founded on CDMA 1X EV-DO dated April 2007.

The Networks

Broadband internet is not the only one that can be exploited using multi-megabits speeds. VOIP and video calling can also be done. HSDPA or high speed data packet access has capacities of taking 14.4 Mbit/s downstream, which is faster compared to majority of the standard lines.

This is still faster compared to cities belonging to advanced and well-developed places. The capabilities of 5.8 Mbit/s uplink is above 10 times better than standard ADSL. It is also 7 times faster compared to the number one cable provider, Virgin Media.

Growing Networks

At present, there are about 400 3G and HSDPA networks all over the globe in one-fourth of the nations in the world. The migration of worldwide subscribers to 3G has already exceeded 15%, not to mention more than 35% among nations where 3G has been launched by the end of 2008. Several operators have launched fixed rate data plans and low cost plans for 3G information use, leading to the increase in usage and reduced costs.

During the launch of 3.5G HSDPA, the technology is given as a movable broadband modem link for both laptop and desktop users. These are priced at the low end for consumer affordability. 3G data can be quite pricey when roaming, with the average cost for every megabyte priced at around 10 dollars.

It will be very difficult to us several megabytes because of the undeveloped speeds that several networks give. You should assess and compare prices from different network providers first.

Filed under 3G Network Tags:2g, 3G Network, 3g technologies, 3g", 3gpp2, 4g, Alcatel-Lucent, CDMA2000, data packet, Evolution of 3G, foma, high speed data, hsdpa, implementation phase, kddi, migration path, setar, softbank mobile, system evolution, tdma, time division multiple access, umb

Different of Types 3G

Written on November 10th, 2009 by MadChasno shouts

Different of Types 3G

Just as with other types of technologies, there are also different of types 3G. You can take advantage of the many features and developments by simply knowing how one type differs 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 3G are UMTS or Universal Mobile Telephone Service and CDMA 2000. UMTS is spread out over the present GSM networks, while CDMA2000 takes 3G 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.

3G Capability

To get the benefits and features of 3G technology, individuals will need a 3G 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 3G 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 3G 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.

About the CDMA2000

Written on November 4th, 2009 by MadChasno shouts

About the CDMA2000

There are different platforms or types of 3G 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 3G 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 3G is known as wideband code division multiple access. It is one of the main technologies used for the implementation of 3G 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 3G 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.

Introduction to 3G Technology

Written on October 26th, 2009 by MadChasone shout

Introduction to 3G Technology

3G services for mobile devices have been introduced by various handset creators and cellular carriers. The companies, however, are not very good at explaining the exact details, except for a given few. There seems to be a missing link between the current standard from previous services provided by 2.5G or 2G technology.

Knowing the types and details will help you pick the right tools for your personal use or business. Here are some features.

About 3G

3G cellular technology is defined as the provision of wireless broadband data and information services right to a person’s mobile unit.

Compared to the previous technologies, 3G promises speeds ranging from 144 Kbps, which is 3 times faster compared to the traditional 56K dial-up modem connection up to 2.4 Mbps, which is very near cable-modem speed.

The networks of 3G allows you to browse quickly through web pages, watch on-demand video programs, download and play music, videos and 3D games, watch streaming videos and music videos and have a video conference with others located on the other side of the plant.

More Developments

The HSDPA is a new technology, which may also be called 3.5G, coming very soon. This offers fasters speeds of up to 7.2 Mbps and also promises the likes of 14.4 Mbps very soon. The interface is very much different on a cellular phone, but other experiences like downloading, streaming, web browsing and sending messages and email can be very comparable to a computer broadband connection.

As of the present, there are 3 big carriers that introduced and launched 3G services. There is also a wide array of 3G-enabled handsets now. In early 2005, Verizon Wireless first marketed the devices. Sprint and Cingular followed soon after. Cingular is now known as AT&T. T-Mobile is also joining the pack as it introduces its new 3G network in 2008.

The Accesses

Currently, 3G technology is the most recent in mobile communications. 3G is the shorter term for third generation, making analogue cellular technology generation one and digital/PCS generation two. The 3G technology is planned and devised for the real multimedia cellular phone, also known as smart phones. These tools feature higher bandwidths and transfer rates to cater to web-based applications and phone-based video and audio data files.

The most common include CDMA2000, which is based on code division multiple access, TD-SCDMA, which stands for Time-division Synchronous Code-division Multiple Access and WCDMA or UMTS which stands for Wideband Code Division Multiple Access.

The Networks

3G networks have the capability of transferring speeds up to 3 Mbps which is equivalent to around 15 seconds for every download of a 3-minute MP3 song. To compare, the speediest 3G cellular phones can move speeds up to 144 Kbps, which is equivalent to around 8 minutes to download a 3-minute MP3 song. The high data rates of 3G are recommended when downloading or acquiring information online, as well as sending and receiving huge multimedia files.

3G phones are comparable to small laptops that can cater to several broadband applications like browsing the internet, receiving streaming videos online, video conferencing and sending and receiving faxes.

The soaring towers are among the most important element of the group, allowing the data to be transferred from one hone to another. 3G basically is a cellular phone network protocol.