Posts Tagged ‘3g networks’

Where 3G is Now

Written on December 13th, 2009 by MadChasno shouts

Where 3G is Now

Technology changes very quickly, which is why you have to be very sure about the gadgets and tools you purchase to get the most benefits. There are several generations available, as far as mobile phones are concerned. You may find that some are still very functional enough to provide for your personal and professional needs.

Here are some details about the technology and corresponding network.

The Technical Terms

Generations are defined according to their period of existence. The first kinds are 1G networks, namely C-Nets, NMT, TACS and AMPS which are categorized among the first analogue cellular systems. These began in the early periods of the 1980s.

There are radio telephone systems before these. The 2G networks, namely DAMPS, GSM and CDMAOne are the initial digital cellular systems released during the early 1990s. The 2.5G networks, CDMA2000 1x and GPRS are the improved versions of the 2G networks with information speeds moving up to 144 Kbps.

3G networks, namely UMTS TDD and UMTS FDD, CDMA2000 3x, TD-SCDMA, CDMA2000 1x EVDO, Arib WCDMA, IMT-2000 DECT and EDGE are the most recent cellular networks with data rates ranging up to 384 Kbit/s and higher. 4G is generally a marketing concept at present.

There are already studies and research being conducted to develop the 4G, although no frequencies have been assigned yet. This newest technology is expected to launch in 2012.

The International Groups

ETSI or European Telecommunications Standards Institute is functioning in Europe to improve technical standards for the UMTS. 3GPP or 3rd Generation Partnership Project is a participation between international standards groups will lead to UMTS and 3G mobile telephony technical specifications.

The starting members include TTC and ARIB from Japan, TTA of Korea, T1 (ANSI) of the United States and ETSI from Europe. The function of the groups is presented globally by the ITU or International Telecommunication Union.

ITU direct worldwide spectrum and the standardization of IMT2000, lets regional regulatory policies work together and is a framework and base for 3G combination over different technologies and regions.

The UMTS Forum shows the opinions and views of the telecommunication operators and industry. These are a mobile operator group, together with GSM Associates. European Union or EU brings together the 15 members on implementation of the UMTS.

Comparing UMTS

UMTS is quite different and unique from other 2G networks at present. It offers higher speech quality that available networks now have, in addition to speech traffic UMTS, with information services and advanced information. UMTS is advantageous compared to 2G because of its capacity to support 2 Mbit/s data speeds.

UMTS is considered as a true global system, made of both satellite and terrestrial components. The consistent service area is one of the best aspects, even when the person is roaming through the VHE or Virtual Home Environment. Users still get to have a variety of services, despite a roaming status.

Being Wideband

WCDMA is called wideband, because 3G WCDMA systems have a bandwidth of 5 MHz in a single direction. 5 MHz is not considered wide or narrow, but the bandwidth is relatively very high.

The recent 3G WCDMA systems have a bigger bandwidth compared to current 2G CDMA systems. The new 3G WCDMA systems have wider bandwidth compared to current CDMA systems. There are also commercial CDMA systems with 20 MHz bandwidth.

Uses of 3G

Written on December 9th, 2009 by MadChasno shouts

Uses of 3G

3G is already embraced by thousands of individuals all around the globe. You can take advantage by assessing the various features and rates first. There are several tools and equipment that incorporate the features and functions of 3G. You may want to know the added uses when going roaming and the like.

Here is some vital information on how 3G has spread to the biggest nations of the world, as well as placed itself in smaller areas too.

A New Level of Broadband

In the United Kingdom, the mobile network Three or 3 presents that 90% of the total population in the nation uses and applies 3G, not to mention 99% having the standard text and talk network which includes 2G, 2.5G and EDGE.

As expected, you can get a minimum of 2 Mbit/s if you are stationary or only walking slowly. However, speeds will begin to fall as you gain more movement, such as riding a car running at average city speed.

3G networks in Great Britain will provide you several packages. The package can run up from 1.8 Mbit/s on networks like T-Mobile and increase up to the likes of 7.2 Mbit/s. This is the similar speed as a fixed line given a few hundred meters from the possible exchange in city areas of London that takes the entire concept as quick easy mobile broadband to a new and different level.

Anticipations

The packages offered by service providers may not be the same or sustained 7.2 Mbit/s. Typically, 3GB or 3072 megabytes that is included in a given plan can cost you anywhere between $25 to $50 each month. Three or 3 is offering 15GB at around $50 to $60 each month, or at half the price if you already have an existing plan with the company. Three will not provide headline speeds, however, as fast as the one provided by Vodafone.

3G is still considered as a baby, with high prices being expected due to the high fees for frequency licensing. The basic expenses of getting several teams of engineers to start a nationwide network and maintenance can be quite high. Canada, shows some of the biggest data access fees in the world available to subscribers.

The absence of a data agreement with 1KB of data can be priced at $0.05, converting into $50 for every megabyte used on the GSM providers Rogers and Fido in Canada. The creation of a 4G network is under works, which is capable of providing speeds of up to 100 Mbit/s for mobile users and up to 1 Gbit/s when stationary.

For Security

3G provides you the a bigger degree of security compared to 2G predecessors. It allows the UE to authenticate the network that it is connected to, the consumer can be certain that the network is the right one and not impersonated. 3G networks apply the KASUMI block crypto, aside from the older A5/1 stream cipher.

Several serious weaknesses in the KASUMI cipher have been pointed out, however. End to end security is provided aside from the 3G network infrastructure security, when frameworks of applications like IMS are connected to, although this is not usually a property of 3G.

Some Issues

3G is successfully introduced to consumers all over the globe, with a number of issues being argued by both users and providers. Expensive input fees for the licenses and agreements can be given, as well as several differences in the licensing terms.

There is also the extra expense of acquiring advanced 3G mobile units and the lack of buy-in by 2G mobile consumers in exchange for the new wireless services of 3G.

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Divisions of 3G

Written on November 24th, 2009 by MadChasno shouts

Divisions of 3G

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 3G include UMTS or Universal Mobile Telephone Service and CDMA2000. UMTS is being brought out over several available GSM networks. CDMA2000 takes 3G 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 3G 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 3G phone to determine how fast each high-speed network works. The beginning may be slow, but there are also so many available 3G handsets today from the present carriers. All mobile phones provide support for the recent 3G 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 3G 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 3G 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. 3G generally is pricier than previous models and platforms.

3G Networks

Written on November 23rd, 2009 by MadChasno shouts

3G Networks

There are several networks available when using various types of 3G accessories and gadgets. You have to consider the details and different data speeds, to understand and know if you are getting enough for your money. You can learn more about networks by visiting their respective web sites or companies. You should know which brands are leading and which ones still need some improvement.

Here are some more details.

Turn Key 3G Network

No network vendor can provide all components and equipment to the full 3G network. There are a limited number of individuals considered as a main contractor to create a turn-key 3G network. Normally, network vendors can bring partners like applications providers and service, civil work, handset manufacturers and acquisition industries.

The current short list of major vendors for the UMTS networks considered as turn-key are Alcatel, Lucent, Ericsson, Motorola, Nokia, Nortel and NEC or Siemens. The present short list of main vendors for CDMA2000 networks categorized as turn-key include LG Electronics, Lucent, Ericsson, Motorola, Samsung and Nortel.

Costs of the Network

A 3G network can be built for a certain price. You can get more information by reading annual reports and contract announcements. These will indicate the sum of money that operators will spend on buildings and infrastructure. In each nation, a carrier will need to spend about the same costs to create a 3G network of the same size. All operators generally spend the same amount of money for every subscriber.

Spending details will include services such as integration, logistics, planning, commissioning, testing and many more. Press reports present that operators in Europe spend about 650 euro for every 3G subscriber for site civil works, infrastructure and planning services. The figure are expected to get lower in a few years. There are several other fees to consider also, like licensing.

Ensuring Safety

On electromagnetic radiation safety, you have to go to the latest government EMR or standard or electromagnetic radiation. You may also check and review the government web site. The government pages should contain more data and information.

You can get a booklet that provides guidelines including details like, the safety zone around the transmission and mobile antennas, local guidelines on the location of the antenna, the combined radiation field values computed from various antennas on a single rooftop, how the EMR computations are made and power levels of interior antennas.

More on EMR

The government frequently do not indicate the right values that are safe or unsafe, for legitimate reasons. EU nations usually issue a number of steps or guidelines that are considered quite rough compared to the standards given by the EU. The American FDA has a clear statement too. There are more than 700 studies and tests related to EMR without a real known outcome. You should consider the risks and potential threats associated with the continuous development of the 3G technology, and others more powerful than it.

Base Stations

There are many factors to consider, to check if base stations are required for a network for UMTS. Some inclusions are financial support for the network build, economical factor to create sites, required coverage areas related to a license agreement, design preferences of company experience to implement the provided plan, coverage requirement for clients and amount of frequencies that the available carriers have.

Consequences of 3G

Written on November 16th, 2009 by MadChasno shouts

Consequences of 3G

Since 3G is a very new technology, it is easy to expect that there are some drawbacks as well. More and more developments are being conducted by various manufacturers worldwide, to better cater to the needs of consumers. You can take advantage by getting to know your gadgets and tools from the inside out.

Here are some details on the possible consequences and if you should consider getting your own 3G mobile unit.

Some Backfires

Some devices, particularly the iPhone 3G, has no instant messaging options or MMS. You then take out the advantage of sending and receiving photos via MMS. There is inadequate or missing expandable memory too. A number of devices may appear in a couple of variants, namely the 8 and 16 GB built-in memory.

The non-detachable battery also is a disadvantage, since you have to put two and two together to get the needed energy. There are also limited service provider selections, so you do not get to pick your personal ISP.

Instead it is taken and sold via a certain MSP Mobile Service Provider. The price of some 3G tools also may be very expensive for a number of individuals. You should learn how to compare your options on the internet and through local dealers.

From GPRS to UMTS

Several network elements can be used again, starting from GPRS network. The included ones are HLR or home location register, VLR or visitor location register, EIR or equipment identity register, MSC or mobile switching center which is vendor dependent, AUC or authentication center, GGSN or gateway GPRS support node and SGSN which is vendor dependent or serving GPRS support node.

If you are starting from GSM or global service for mobile communication radio network, you cannot use some elements again, such as BSC or base station controller and BTS or base transceiver station. These can stay inside the network and be used in two network operations wherein 2G and 3G networks exist together. At this occasion the network migration and recent 3G terminals are also present for use within the network.

Some Functionalities

The UMTS network shows and introduces some recent network elements that work as specified by 3GPP, namely MGW or media gateway, base station or node B or RNC or radio network controller. The functions of SGSN and MSC will vary when going toward UMTS.

In a GSM system, the MSG controls all the circuit switched operations such as linking A and B subscriber through the network. In UMTS, the MGW or media gateway is responsible for all types of data transferred in both the pack switched networks and the circuits. MSC and SGSN manage operations of MGW. The nodes will be named again to GSN and MSC servers.

Discussing Security

Compared to its 2G predecessors, 3G networks are a lot more secure. It allows the UE to authenticate the network it is attaching to, allowing the user to be certain that the network is the right one and not just a mere impersonator. 3G networks usually make use of the KASUMI block crypto, compared to the old A5/1 stream cipher. Several major weaknesses in the cipher have been discovered, however.

There is also end to end security provided when application frameworks like IMS are accessed.