3GRead People Like A Book

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 3G 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 3GPP, 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 3G

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.