CEBIT - Alcatel adds satellite to mobile TV picture

With satellites, Alcatel aims to overcome a key hurdle in rolling out broadcast television services over mobile phones: the lack of available spectrum.

With the help of satellites, Alcatel aims to overcome a key hurdle in rolling out broadcast television services over mobile phones: the lack of available spectrum.

The French telecommunications-equipment manufacturer proposes using the widely available S-Band frequency reserved for satellites to transmit broadcast signals both terrestrially and via satellite to mobile phones based on the DVB-H (Digital Video Broadcasting - Handheld) standard, instead of the UHF band. The UHF band is typically used for TV transmissions in Europe but has little or no capacity to spare, said Herbert Mittermayr, vice president of marketing for mobile TV systems at Alcatel, in an interview last week at the Cebit trade show in Hanover, Germany.

Broadcast mobile TV phones receive regular TV broadcasts using special antennas. An alternative service, which is already available, streams video data to phones over mobile networks. The big difference is broadcast's one-to-many relationship versus a streamed transmission's one-to-one.

The Alcatel proposal calls for equipping base stations with S-Band repeaters and, in addition, using satellites capable of transmitting in the S-Band to deliver content to 3G (third-generation) phones enabled with DVB-H technology in three different ways: base-station streaming, base-station broadcasting and satellite broadcasting.

Each delivery service has its own advantages and disadvantages.

While the streamed service via the base station offers nearly unlimited channels and deep indoor coverage, it can support only a limited number of subscribers in a given area of the cellular network.

By comparison, the base-station broadcast service can support an unlimited audience with good indoor coverage but offers only 27 channels.

While the satellite-based broadcast service also can support an unlimited audience, especially in rural areas, it offers poor indoor coverage and only nine channels.

"Users don't have to worry about which service to select," said Mittermayr. "An intelligent content management system decides which of the three delivery channels is the most appropriate."

In addition to its availability, another key advantage of the S-Band is required antenna length. The frequency requires an antenna length of 6.5 centimeters, compared to UHF's 60 centimeters, according to Mittermayr.

The S-Band is a satellite allocation operating in the 2,170MHz - 2,220MHz frequency range, which is immediately adjacent to the 3G band.

Several companies are currently developing chipsets and handsets compliant with the S-Band, as well as designing antennas and other components, according to Alcatel.

Chip maker DiBcom is designing a new chipset that will be compatible with the DVB-H standard working in the S-Band, Alcatel said.

Sagem Communication is developing DVB-H phones that support both UHF and S-Band, according to Alcatel.

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

John Blau

IDG News Service
Show Comments

Essentials

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

HD Pan/Tilt Wi-Fi Camera with Night Vision NC450

Learn more >

Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards 

Learn more >

Lexar® JumpDrive® C20c USB Type-C flash drive 

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

GGG Evaluation Team

Michael Hargreaves

Windows 10 for Business / Dell XPS

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?