Tag: LTE

Cell (short for cellular) phones, also known as mobile phones or wireless phones, are small hand-held phones with built-in antennas. Unlike home phones, cell phones can be carried from place to place with ease. This makes them a good choice for people who want to be in touch with other people even when they are away from the house.

Notable among these phones are the ones known as smart phones. Though earlier varieties of cell phones were developed without a microprocessor, most recent mobiles have been based on a microprocessor and a dedicated Operating System such as Android. These are also known as smart phones because they accommodate complex functionalities such as writing office documents, VOIP phone calls, etc.

A cell phone operates in conjunction with a cell tower that receives signals from a cell phone and forwards the same towards destination. Three widely used technologies in cellular phones are

a. GSM (Global System For Mobile Communication)
b. CDMA (Code Division Multiple Access)
c. iDEN (Integrated Digital Enhanced Network)

The protocols followed include 2G, 3g, 3.5G, and 4G (Developmental). Progressively, these technologies offer value added services like VOIP, broadband Internet, and video calls.

Some of the important features of cellular phones include
Camera in mobile phones
Accessing internet from mobile phones
VoIP
Applications like Office Document Support
Interfaces support like USB, HDMI, Wi-Fi, Bluetooth, and Infrared
Audio/Video formats in mobile phones
Single SIM v/s Dual SIM mobile phones, and others.

Further, with the advent of high speed low power processors, and free mobile Operating Systems such as Android, the smart phone have become more affordable and feature rich. A comprehensive comparison of all the features of cell phones is provided in the article on Cell Phone Selection Guide http://www.tutorialsweb.com/Cellular/index.htm
Few of the recently added articles available include the following:
WiMAX, LTE and 3G/3.5G The article provides a comprehensive review of these technologies, and compare the same. Advantages and disadvantages have also been discussed.
Satellite Phones The article discusses various satellite phone manufacturers, and the advantages of using the same over others. Important features of have also been discussed.
A Tutorial on IPv6 Traditional IP address space has been depleting very fast. As a result, IPv6 is becoming order of the day to provide much needed IP addressability to various resources on the Internet. The tutorial discusses IPv6 addressing scheme.
Surface Mount Assembly and Rework With the advent of miniaturization in electronics, component sizes are shrinking from time to time. The article discusses various techniques used for surface mount component assembly and testing.
Computer Printers and Scanners A comprehensive review of computer printers starting from character printers has been provided.
Co-axial Cable Insertion and Return Loss Measurement For rf equipment, the measurement of insertion and reflection losses is very important. The article provides step by step procedure for measurement of the same.
Microsoft VB.NET Drag-n-Drop Programming, and others
Please visit TutorialsWeb.com http://www.tutorialsweb.com/ for reading these articles.

Research in Motion produsen BlackBery yang berbasis di Kanada, belakangan ini dilaporkan akan meluncurkan smartphone BlackBerry Storm baru yang akan berjalan pada jaringan LTE. Perangkat dengan jaringan LTE itu akan menjadi unggulan di antara smartphone lainnya, karena didukung dengan banyak fasilitas seperti prosesor 1 GHz, memori internal 8GB dan flash memory 1GB. Peluncuran perangkat ini Research In Motion akan bekerja sama dengan Verizon, yang merupakan operator yang akan menawarkan smartphone layar sentuh BlackBerry Storm baru itu.

Jaringan LTE atau Long Term Evolution ini merupakan teknologi baru yang merupakan pengembangan dari teknologi 3G. LTE didukung dengan performa teknologi radio akses yang sangat tinggi dan dapat di gunakan bersamaan dengan HSPA dan jaringan terdahulu lainnya. Selain itu, dengan scalable bandwidth operator kapan saja dapat dengan mudah memindahkan jaringan-jaringan dan pengguna dari HSPA ke LTE.

CEO Verizon Wireless, Lowell McAdam mengatakan operator itu akan meluncurkan 5 perangkat baru dengan jaringan LTE hingga Mei 2011. Lowell McAdam juga menyebutkan bahwa telah ada beberapa produsen ponsel yang mengembangkan handset LTE. Verizon Wireless telah memasuki masa uji coba di 5 pasar. Tes teknologi ini telah dilakukan di Boston dan Seattle sejak 2009 dengan harapan dapat memenuhi kebutuhan 100 juta pengguna hingga akhir 2010. Penggunaan jaringan LTE ini bisa jadi perkembangan yang cukup besar karena RIM memiliki porsi paling besar saat ini dalam pangsa pasar smartphone. Saat ini BlackBerry Bold sebagai handset terdepan RIM, di masa mendatang diharapkan juga dapat mengadopsi jaringan LTE mengingat jumlah peminatnya yang cukup banyak.

Rencana peluncuran handphone terbaru BlackBerry Storm LTE adalah untuk bersaing dengan iPhone 4G dan HTC EVO 4G yang dirilis dengan jaringan WiMAX dari Sprint. HTC EVO 4G tidak benar-benar membuat sensasi namun merupakan ponsel paling sukses dari Sprint. BlackBerry dan Verizon memiliki sejarah yang panjang dalam memproduksi perangkat yang bagus dan versi LTE Storm ini diharapkan dapat membantu meningkatkan penggunaan teknologi 4G.

Dengan demikian dapat diprediksikan bahwa kira-kira 1 tahun mendatang era 3G phone akan segera berakhir dan dunia akan menyambut datangnya teknologi 4G.