Should You Buy Huawei B683 or Huawei B593?

These days, we found some customers are in trouble of how to Choose the wireless router between Huawei B683 and B593?

 

Frankly speaking, it’s a good question for those users who are committed to Huawei brand. Based on reliable quality and performance in network connection, Huawei routers had crashed to CISCO   WLAN routers to some extent.

Then how to determine which router among Huawei routers? Take Huawei B683 and B593 as example, which one is better? For most users who want to buy router, the question should be “which one is appropriate?”

 

To answer “which one is better” is easy; Huawei B593 is 4G LTE CPE which supports maximum download speed up to 100 Mbps and 50Mbps at uplink. With latest new technology, users could surf at revolutionary speed without latency. The two MIMO antennas can help B593 to reach the fastest possible speed.

 

 

However, Huawei B683 3G Wireless Router could only run on 3G UMTS and 2G network, it can’t work with 4G LTE network. And the maximum speed could reach only 28.8Mbps, which is only a quarter of speed from B593. There is only one external antenna connector on Huawei B683. So there is no doubt that Huawei B593 is much better than Huawei B683.

 

But should you buy Huawei B593 rather than Huawei B683？As the professional consult in wireless solution, the writer suggests users should have a second thought and the decision depends.

 

 

If you buy the router for SOHO, home or office, in most of cases, Huawei B683 is enough to support the Internet activities based on the current 3G network. According to the practical test for 4G LTE CPE HUAWEI B593, the peak speed can’t reach 35Mbps with good network environment under LTE network. And to use new 4G service, the service fee is not at the similar price as 3G.

 

There is no doubt that HUAWEI B593 LTE CPE would finally replace HUAWEI B683 Wireless Router. From a long-term point of view, 4G LTE network will become common. Since the LTE is just at the beginning, for the users concerning about the cost, HUAWEI B683 would be appropriate for current usage.

If you need router for the wireless network solution in a project, concerning the future network upgrade and function is more important than cost, HUAWEI B593 LTE CPE should be the first option. This LTE CPE B593 is born to meet the industrial applications after time and time test.

 

Above is my opinion for user’s reference, if you need them, you could check the site www.4gltemall.com for unlocked routers.

 

 

Top 9 Most Popular 42mbps DC-HSPA+ USB Modem & Surfsticks

As the prospective 4G technology features, if a USB modem or Wireless dongle could support HSPA+ 42mbps download speed, some people call them 4G stick or 4G modems. Since their speed is even double from their predecessor, and user may feel better psychologically when they say they use 4G modems, not 3G surf sticks.

 

Actually, the technology of HSPA+ is just prospective 4G technology. According the authority from Telecommunication Association, LTE and WiMAX are commonly acknowledged as the 4G standard. And LTE and WiMAX network are commonly deployed all over the world. In some countries and areas, the 4th generation is already launched to the public for commercial usage.

 

Even though, HSPA technology is worthy talking about. For most wireless users, the maximum speed of 42mbps (in some place, it says 43.2mbps, more accurately), is enough for 99% applications when surfing. And unlike the high cost from LTE and WiMAX, HSPA+ network could provide budget cost service comparing with its successor networks.

 

To enjoy HSPA+ service, it would be necessary to have a HSPA USB stick or mobile WiFi Hotspot. Below are top 9 most popular 42Mbps HSPA+ surf sticks to recommend:


Huawei E372:

HUAWEI E372 USB Stick is one of the star USB modem from HUAWEI to support DC-HSPA+ technology, and the peak speed is 42Mbps. It has great power to gain wireless signal, when users in rural or countryside with low signal, HUAWEI E372 could support smooth surfing without latency. It has the external antenna to give one more hand to get good signal. E372 supports qual UMTS bands which covers all the operators’ network all over the world.




Vodafone K4605:

Vodafone K4605 USB Surfstick comes from the the factory model HUAWEI E372. Following the classic compact USB design, Vodafone ordered K4605 to upgrade the upload speed to 11Mbps while E372 only supports HSUPA to peak speed 5.76Mbps.



HUAWEI E3251:

Vodafone K4605 USB Surfstick comes from the the factory model HUAWEI E372. Following the classic compact USB design, Vodafone ordered K4605 to upgrade the upload speed to 11Mbps while E372 only supports HSUPA to peak speed 5.76Mbps.



Sierra wireless AirCard 312u:

As the top 3G Aircard of Sierra Wireless, Sierra 312u has a definitely new appearance than its predecessor, such as Sierra 308, 306. To meet the high speed data rate transmission, Sierra 312u has two external antenna connectors; it’s based on DC-HSPA+ technology and somewhat like MIMO technology. The 312u is in big size than usual USB stick, this may need Sierra to re-optimize.


Sierra Wireless AirCard 319u:

Sierra Wirless Aircard 319u is the high end 3G USB surfstick from Sierra Wireless. It supports DC-HSPA+ technology and could reach peak download speed to 42Mbps with Qual-band UMTS 850/900/1900/2100Mhz. It’s somewhat like HUAWEI E372 to work freely all over the world.


ZTE MF680:

ZTE MF680 HSPA+ Stick should be the most special one in the group modems. It’s designed in pink color and called Queen Rose, perhaps ZTE want more lady users for this cute modem. This USB design is like HUAWEI E182E, the USB could be hidden in the modem body when it’s not working.



ZTE MF683:

ZTE MF683 DC-HSPA+ USB modem comes for North America operators such as Roger, T-mobile, it has almost the same technical features as ZTE MF680, but the 3G UMTS bans are not the same. ZTE MF680 is more apt for Europe while ZTE MF683 is best for USA, Canada and Japan 3G networks.



Novatel Ovation MC547:

Novatel Ovation MC547 dual-carrier HSPA+ Mobile Broadband USB Modem is the fastest 3G USB Surfstick made by made by Novatel Wireless supporting HSPA+ technology. Canadian operator Bell Mobilty upgraded its network to HSPA+ and introduces Novatel MC547 42Mbps USB modem to market. It’s already launched into market by provider Bell. It’s also for North America Market.





Novatel Ovation MC545:

As the sister model of Novatel Ovation MC547, Ovation MC545 supports different UMTS bands as MC547 and MC545 is more apt for Europe areas. With the same Dual-carrier technology, they both support HDPA+ 42Mbps downlink speed without limit.

 



Based on the functions of the high data rate, their price is no as cheap as common 3G USB dongles, their price range is around 170USD, more or less. So if you are looking for them for personal use or project applications, you can check www.4gltemall.com and try the unlocked DC-HSPA+ USB dongles.

QAM

To increase the data rate, a modulation method is used in LTE, which can transmit a plurality of bits per signal – the so-called Quadrature Amplitude Modulation (QAM).

This is a transmission technology in the long applied modulation method, which guarantees high transmission density. This amplitude modulation and phase modulation are combined. The method has different levels, and it can have multiple bits in groups of 4, 8, 16, 32 or 64 bits are combined – correspondingly increases, the transmitted data rate. The method with 64-bit, 64 short is called QAM, however, it is only possible in the vicinity of the transmission mast, because the higher the modulation, the more susceptible to interference. Thus, in LTE systems it uses in further transmission distance 4 QAM, 16 QAM in a medium distance.

In practice, therefore, the data rate close to the LTE radio mast will be higher than in a clear distance. The announced top speeds with LTE are therefore also dependent on how far away the nearest transmission tower, where the customer is staying.

QAM applications

QAM is in many radio communications and data delivery applications. However, some specific variants of QAM are used in some specific applications and standards.

For domestic broadcast applications for example, 64 QAM and 256 QAM are often used in digital cable television and cable modem applications. In the UK, 16 QAM and 64 QAM are currently used for digital terrestrial television using DVB – Digital Video Broadcasting. In the US, 64 QAM and 256 QAM are the mandated modulation schemes for digital cable as standardized by the SCTE in the standard ANSI/SCTE 07 2000.

In addition to this, variants of QAM are also used for many wireless and cellular technology applications.

 

QAM noise margin

While higher order modulation rates are able to offer much faster data rates and higher levels of spectral efficiency for the radio communications system, this comes at a price. The higher order modulation schemes are considerably less resilient to noise and interference.

As a result of this, many radio communications systems now use dynamic adaptive modulation techniques. They sense the channel conditions and adapt the modulation scheme to obtain the highest data rate for the given conditions. As signal to noise ratios decrease errors will increase along with re-sends of the data, thereby slowing throughput. By reverting to a lower order modulation scheme the link can be made more reliable with fewer data errors and re-sends.

 

Vodafone K4510 and K4511 USB Surf stick General Review

As the top network provider, Vodafone had released a serial of USB surf stick for its customer and to meet various demands from customers located in different areas.

 

Sometimes, one Vodafone USB surf stick may has two or more variants. Today，we will have a simple review of Vodafone K4510 and K4511 Internet stick.

 

 

Following Vodafone K3765 and K3565, K4510 and K4511 has upgraded the speed for high speed demand. That should be the key feature different from their Predecessor model. The appearance design of K4510 and K4511 is still the classic compact USB, slim and easy to take in hand or bag.

 

To help the USB modem gain better signal so that users could surf in high speed of data transmission, the two modems has external antenna connector. So if users are in rural area or some place of low network coverage, add an external antenna, better signal could be gained.

 

The difference of Vodafone K4510 and K4511 is just the 3G UMTS bands. They both support GSM/GPRS 850/900/1800/1900 MHz.

 

 

Vodafone K4510:  3G HSPA+/HSDPA/HSUPA/UMTS 900/2100 MHz (K4510 -also named K4510-Z ZTE)

Vodafone K4511:  3G HSPA+/HSDPA/HSUPA/UMTS 850/900/1900/2100 MHz (K4511 – also named K4511-H)

 

Someone may ask, what the K4510Z and why it’s K4511H, actually, they come from difference producer, Z means ZTE, the Chinese telecom equipments supplier, while the H means HUAWEI, and it’s also the top supplier of telecommunication products. They both supply reliable products, so Vodafone let them produce the two variants.

 

So before you buy this modem, please make sure they are suitable for you 3G network bands. That will determine whether you can enjoy the fastest speed available. 4gltemall.com provide unlocked Vodafone K4510Z and K4511H to help you enjoy surfing freely.

 

 

The MIMO antenna technology in LTE

In LTE wireless networks, MIMO antenna technology is used. MIMO stands for Multiple Input / Multiple Output.

 

Instead of a sending and receiving antenna, in the MIMO technology, up to four transmitter antennas and four receiver antennas to be used. The corresponding codes are 4×4 four transmitting and receiving antennas, or 2×2 for two transmitting and receiving antennas. MIMO enables simultaneous transmitting multiple data streams on the same frequency. Systems with a single antenna are called SISO (Single Input / Single Output).

In principle, the multiple-antenna systems have the following advantages: First, you get a bigger reception power and thus greater range, secondly suppress interference from other radio waves better, make for a better connection quality thirdly and fourthly, for better transfer rates. However, one cannot utilize all four at the same time maximum benefits: You have to decide whether you want to improve the system in a data-transfer speed or the range or quality of the connection.

Key technology for LTE

MIMO is a key technology in LTE wireless networks, since they are the spectral efficiency is improved. However, MIMO is not only used on LTE, but also used in WiMAX and WLAN systems. By using multiple antennas, in LTE, the reception signal improved and interference can be reduced – that is, it results in less interference from other radio frequency used. But the most important: The MIMO technology is at the LTE transmission of the data stream to be distributed to up to four transmit and receive antennas. This increases the amount of data that is transferred per unit time, thus ensures a higher transmission speed – while reducing the error rate.

LTE can use up to four times four antennas, it provides for the 3GPP Release 8, which is defined in the technical specifications for LTE. Also two times two MIMO systems are possible. In a 2×2 MIMO, the data rate in comparison to a system can be doubled with a respective antenna almost.

Devices with MIMO antennas

A technical challenge may be the equipment of devices with multiple antennas – a smartphone offers relatively little room for a higher number of antennas. At low frequencies such as the 800-megahertz band, the problem is compounded by the fact that there are larger antennas needed. Especially in the countryside, however, LTE will use this frequency range. Installation of multiple antennas in laptops is problematic. Since the LTE stations will initially replace the missing country’s DSL, it imposes the use of MIMO technology is quite well possible.

 

Vodafone HSPA+ 3G 4G USB Surf Stick

As the world’s top network provider, Vodafone is always leading the new trend in the telecom industry and Vodafone usually let his customer first to enjoy new experience and new technology from the surfing.

 

Vodafone USB Sticks are well known all over the world and since unlocked sticks are not limited to Vodafone network, we could see Vodafone surf sticks are used worldwide. Today, let us see the HSPA+ USB Sticks from Vodafone.

 

Vodafone K4505 3G HSPA+ 21Mbps USB Stick

 

Vodafone K4505 HSPA+ 21Mbps 3G USB Surfstick is one of the hot unlocked HUAWEI 3G Wireless USB modems, which allows users to download at 21Mbps and upload up to 5.76Mbps. What’s more the modem could be upgraded to support 28.8Mbps download speed.

 

 

It includes the ability to roam globally on HSUPA, HSDPA, UMTS and GSM/EDGE networks. You can stay connected wherever your travel schedule takes you. With External antenna, it could work with better signal even when you are in rural area.

 

 

Vodafone K46053G DC-HSPA+ 42Mbps USB Surf stick

 

Vodafone K4605 is the second HSPA+ mobile broadband after K4505, and it’s come from the factory model HUAWEI E372, but seems better than E372. K4605 supports even more, it is twice speeds as HUAWEI K4505, HSPA+ download speeds up to 42Mbps, also the fastest dongle of Vodafone, additional, unlocked K4605 has another features difference from others that’s the bands support, generally supports 900/1900MHz, but this one support whole band.

 

 

Unlocked Vodafone K4605 modem removes the network lock that prevents the modem from working with other mobile network operators. Once unlocked, the Vodafone K4605 modem will work with mobile broadband operators all over the world, Including Vodafone, Telefonica, Movistar, O2, Orange, T-Mobile, AT&T, TIM, Three, Wind, Claro, Rogers, Telstra, Optus, Virgin, Airtel, 3, Cingular and many more GSM and UMTS mobile networks

 

 

Vodafone K50054G 100Mbps LTE USB Surf stick

 

Vodafone K5005 4G LTE 100Mbps USB modem (the original factory model is Huawei E398), is a newest Triple-Mode LTE Modem from Huawei devices. It’s fully unlocked and ready to use with all global services. Since Vodafone K5005 is for Vodafone 4G LTE network, it supports maximum 100Mbps download speed and 50Mbps upload speed.

 

Telecom also sells the device as well, and it’s called Speed Stick LTE. The difference of them is just the logo. Vodafone K5005 is the upgraded version of Vodafone K4605 and support 4G LTE network, while the latter only works on 3G DC-HSPA+/HSUPA network. And K5005 LTE USB Stick is the first LTE model released by Vodafone to benefit the customer who has higher demand for the speed.

 

 

Vodafone K5006Z 4G LTE 100Mbps USB Surfstick

 

Vodafone LTE USB-Stick K5006z is a new 4G LTE USB modem that produced by ZTE, the top telecom equipments supplier in China. K5006Z is one model upgraded from Vodafone 3G USB Stick, such as K4605, K4505, K3765, K3565, so it has the similar appearance as them. There is twin model Vodafone K5006H which is produced by HUAWEI, also the head wireless terminals supplier in China.

 

 

Vodafone K5006Z and K5006H are only the manufacturer difference. The other features are almost the same. Vodafone K5006Z supports LTE frequency at 800MHz and 2600MHz with up to 100 Mbps download speed, in the UMTS network, thanks to DC-HSPA+ up to 43.2 Mbps in download possible. Unlocked K5006z could work around all over the world with the providers in Asia and Australia.

 

 

Vodafone Connect Pen K5007 4G 150Mbps LTE USB Stick

 

Vodafone Connect Pen K5007 4G LTE USB Surfstick is the latest Vodafone 4G USB Surf stick for LTE network. It’s first released in Portugal and it support 4G LTE download speed at 150Mbps (the fastest and maximum download speed based on current 4G technology).
Vodafone Connect Pen K5007 LTE FDD stick is the world’s first commercially available device for LTE Category 4. It comes from the factory modem HUAWEI E3276 4G LTE Surfstick with Vodafone brand.


Vodafone Connect Pen K5007 4G USB modem supports a total of five frequencies (800/900/1800/2100/2600 MHz) and delivers up to 150 Mbit/s downstream and 50 Mbit/s upstream. K5007 4G Dongle also supports DC-HSPA+ UMTS network with GSM and EDGE backward. The dual-carrier HSPA+ data rates of up to 42 Mbit/s can be achieved.

 

It would be lucky if you are under Vodafone network, but if now, there is still ways to enjoy same network experience. There are unlocked surf sticks available on www.4gltemall.com . With unlocked ones, you don’t need the contract with Vodafone and still enjoy HSPA+ fast speed freely.

 

LTE Versions: TDD and FDD

LTE is available in two technical variants: TDD and FDD. TDD stands for the English expression Time Division Duplex.FDD stands for the English word Frequency Division Duplex. It sounds complicated, but you can explain it simply: When FDD there are two channels, which is broadcast on: on one which you receive messages with their laptop or smartphone and on the other which you send the message. In TDD there is only one channel – it will be used alternately to send and receive. Transmit and receive mode switch it so fast that you do not notice. What are the advantages and disadvantages of both techniques?

The advantages and disadvantages of the techniques

FDD seems better at functions where many data are simultaneously transmitted and received – they both have their own supervised channel. One example would be telephone calls or video calls. Another benefit: When building the base stations need to take any further precautions – as transmit and receive channels are different, disrupt the channels of two base stations are not mutually exclusive. In TDD networks have to ensure that adjacent base stations do not interfere with each other.

Conversely, TDD uses the available space in the radio room much better. Often more data is received than sent, or more sent than received – for example, if I put a video on the Internet or send a friend a photo collection. In these cases – in technical terms, these are asymmetrical applications – TDD divides the space to send or receive on demand. Overall, the introduction of this TDD technology is cheaper, among other reasons, because the mobile operators do not have to hire as much radio room from the state as in FDD. The TDD needs only one channel and not two. For operators who previously used the wireless technology WiMAX, the transition to LTE TDD, with a lower price.

FDD and TDD: Worldwide both lay sometime par

Currently, the FDD technology is well forward, but with increasing global expansion of LTE networks, two techniques are commonly used equally well. The currently existing LTE networks in Germany, Austria, Scandinavia and the Baltic use FDD-LTE. Even Verizon Wireless in the U.S. uses this variant.

However, LTE is in TDD variant currently being tested by E-Plus in Germany. LTE TDD has also been tested in France, Ireland, Poland; the United States has the Wimax operator Clearwire tested. And WiMAX is interested in the technology in Japan, Saudi Arabia, Oman and Taiwan.

In South Korea, the Korean SK Telecom in early July has taken a LTE network on TDD base into operation in Malaysia still 2011; a TDD-LTE network will be built. Russia wants the operator Yota use a nationwide 180 cities comprehensive LTE network TDD. Experts believe that China has in each case; the TDD variant will be used for LTE, as well as in India.

 

Real 4G LTE Advanced Technology and the Future

Since November 2008, under the name IMT-Advanced, LTE and WiMAX are the specifications for the fourth generation of mobile. The International Telecommunication Union (International Telecommunication Union, ITU short) set these requirements.

 

Since October 2009, two technology families apply for the title of 4G wireless data technology of the future, according to the International Telecommunication Union. Firstly, there is the advanced technology LTE Advanced, which evolutes from LTE. Second, the applicant is provided with the bulky abbreviation IEEE 802.16m technology, which has evolved from the WiMAX group.

Colloquially LTE or Mobile WiMAX is already now referred to as 4G technologies. In colloquial usage, technical standards, there are 3G systems.

The ITU standards: A gigabit per second is the goal

Some key requirements on wireless technologies of the fourth generation: Higher transmission rates, greater bandwidth, high spectral efficiency and low latency and better coverage of the peripheral areas in the radio cells are crucial criteria.

As research targets for the transmission rate is at 100 megabits per second per the International Telecommunications Union, and gigabit per second high with low mobility. There are also up to 40 megahertz scalable bandwidth for the transmission channel, but the researchers are encouraged to draw bandwidths up to 100 MHz considered. The spectral efficiency is measured by measuring the transmission rate per bandwidth. The ITU for IMT-Advanced set 15 bits per second per hertz (bits/s/Hz) on the downlink and 6.75 bit / s / Hz in the uplink.

As examples of different high top speeds in different widths, radio channels are given by the ITU on a channel of 40 megahertz (MHz) 600 Mbit/s and on a channel of 100 Megahertz 1500 Mbit/s respectively in the downlink.

The 4G LTE-Advanced candidate

The bandwidth is LTE-Advanced is significantly higher than the 3G. Instead of 20 megahertz, LTE-Advanced can bundle multiple carriers and thus use up to 100 MHz simultaneously. It is also possible that frequency bands in different frequency ranges are combined, since no operator has been on a continuous frequency range of 100 MHz Currently these 100 MHz are only theoretically achievable, in practice more spectra has to be assigned. This can happen only in 2015 at the World Radio Conference (WRC). Until then, the bandwidth will probably be limited to 40MHz.

Another innovation that could keep up with LTE-Advanced collection is called “relay nodes”, i.e. relay stations. This will allow, even outside the range of a base station to receive the signal. In the edge region reinforce the signal relay stations. Connected the relay stations are connected to the base station. Thus, the signal strength inside buildings can be improved.

Increase the spectral efficiency

The concept of multiple antennas (MIMO: Multiple Input / Multiple Output) technology, which is already partially used, will also be expanded. Instead of two antennas at the transmitter and receiver (2×2 single-user MIMO) to be introduced up to eight antennas for the downlink (8×8 single-user MIMO). For upload, still four antennas are used. Simultaneously by using multiple antennas, a plurality of data streams on the same frequency is transmitted. This not only increases the spectral efficiency, but also the transmission quality.

When the spectral efficiency of LTE-Advanced will even peak values of up to 30 bits/s/Hz can be achieved in the download as well as 15 bits / s / Hz in the upload. LTE has the merit to 15 bits / s / Hz when receiving and at 3.75 bits / s / Hz when sending data. This shows that, although LTE in terms of spectral efficiency can already meet the requirements of IMT-Advanced, but only in the download. The upload, and in the range, it is far from being a 4G technology.

4G: colloquial and technical language

Although often LTE or Mobile WiMAX called 4G technologies, they are from the standpoint of technical standards only further developments in the field of 3G and provide an intermediate step represents some criteria for IMT-Advanced are indeed fulfilled to some extent, by no means all.

Nevertheless, the marketing departments of international mobile operators call the new LTE technology, which is increasingly used in the United States, even as 4G, to illustrate the difference in the speed of data transmission in comparison to UMTS networks. It is becoming apparent that this usage was soon penetrated. Then LTE or similar technology, such as Mobile WiMAX are commonly referred to as 4G technology, and only in the jargon of technical standards still out as 3G technologies.

 

LTE Technology

The new mobile technology LTE is superior to the existing mobile technologies GSM and UMTS, the link speed which data is transferred is much far higher the response time of the current system and the connection is faster.

 

This is achieved through a variety of improvements in various areas of technology that each contribute in itself to significantly better overall picture of the data radio technology. Due to the significant improvement in overall performance, LTE mobile technology is increasingly recognized as the 4th Generation (4G) refers. While in technical descriptions of the generation LTE 3.9 is assigned, but the name of LTE as 4G mobile technology is likely to prevail worldwide.

Improvements in wireless technology

A number of technical innovations allow use of the available radio room better. The OFDMA radio technology allows customizing the transmission capacity to meet the needs of each user – who wants to watch TV on the mobile Internet, gets more space than someone who just wants to make calls only. The downlink OFDMA is used for the same transmission speed with a very small range of the radio room – it takes up less space for an equal amount of data transmitted. Also known as High Speed OFDM Packet Access (HSOPA) technology uses the existing radio room two to four times better than the method called Wideband Code Division Muliple Access (WCDMA), which is used in HSDPA.

With the multi-antenna MIMO technology can be transmitted simultaneously with the current standard of four antennas and received simultaneously – what the reception improves performance significantly. Moreover, a possible interference by neighboring radio waves, which prevents so-called interference significantly stronger.

All in all, the radio room with LTE is better used, because the signals from the multiple antenna technology at transmission and reception are separated in space, and because the size of the radio channels can be adjusted according to the user.

Improvement in network construction

There are also improvements in network construction. The networks as a whole should be fit. In the network architecture, the requisite leaner architecture makes first by the absence of an element – namely the mediator between the base station and core network noticeable. The significantly higher amount of data that can be processed thanks to improved techniques the radio part of the network, of course, lead to the fact that mobile operators must also provide the lines between the base station and core network for more capacity.

Overall, the whole network will be improved so that its response times are less than five thousandths of a second (milliseconds). After all, only at a very low response time (latency) of the network can be demanding services such as Mobile TV, video calls and mobile online games provide no problems.

The competition techniques: Ultra Mobile Broadband and Mobile Wimax

LTE is the view of IT expects to be the first mobile technology, which works worldwide as a general standard. Nevertheless, there were – from a technical viewpoint – two other data transmission technologies that were considered LTE competitors: Mobile WiMAX and Ultra Mobile Broadband are techniques that offer similar data transfer speeds as the mobile technology LTE.

Ultra Mobile Broadband was a technology that is used in the USA the third mobile communications standard Should develop a rapid generation CDMA2000 mobile fourth generation. Above all, the U.S. chip maker Qualcomm invested diligently in the development based on CDMA 2000, while the Swedish Ericsson continued to LTE as a new cell phone technology. Both technologies used very similar approaches. In November 2008, Qualcomm ended its funding of research and waved a UMB to LTE.

Mobile WiMAX can achieve with the use of LTE and multi-antenna MIMO method on a 10-megahertz radio channel transmission speeds of a total of 90 megabits per second. These are divided in 63 megabits per second for downloading data (downlink) and 28 Mbit/s for transmission (uplink). However, radio cells are in Mobile Wimax achieved with a diameter of one to four kilometers far smaller than the LTE radio cell in the 800 megahertz range – where the diameter is 20 kilometers.

For network design brings dramatic benefits for this difference. LTE takes much less Send master and base stations to build a nationwide network.