Feeds

Bristol TV trial proves 3G won't interfere with 3G

Unused frequencies mean even more to ignore

The essential guide to IT transformation

3GSM IP Wireless has announced the successful end of its Bristol-based broadcast TV trial, which has been running for the last few months in conjunction with Vodafone, Telefonica, Orange, and 3.

The trial demonstrated that 3G broadcasting won't interfere with existing 3G services, and that operators already own enough capacity for 14 TV channels each - capacity which is currently lying unused.

During the insanity of the 3G auctions, most operators bought Time Division Duplex (TDD) frequency blocks, but few have since found any use for them. As a result, the frequencies lie unused and empty.

Multimedia Broadcast & Multicast Services (MBMS) is part of the 3G standard and allows the same data to be sent to all subscribers within a cell, or within an entire network.

Using MBMS, within the unused TDD frequency blocks, network operators can send out 14 channels of video (at 300Kb/sec each) without needing additional licenses or building new cell sites. Additional hardware is needed at about a third of current sites to provide universal coverage, costing about £10,000 per site, but that is minor compared to the expense of licensing and building a new network infrastructure.

The trial confirmed that overlapping cells enhanced rather than interfered with signal quality and there was no conflict with existing services. Tests on a motorway showed that even at high-speed the service worked seamlessly, though one hopes the driver wasn't watching.

What it didn't attempt to establish was if any customers wanted mobile TV on the motorway or anywhere else, though IP Wireless was quick to point out that the data streams could be used for anything if the mobile TV market turns out to be less profitable than hoped. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
6 Obvious Reasons Why Facebook Will Ban This Article (Thank God)
Clampdown on clickbait ... and El Reg is OK with this
So, Apple won't sell cheap kit? Prepare the iOS garden wall WRECKING BALL
It can throw the low cost race if it looks to the cloud
EE fails to apologise for HUGE T-Mobile outage that hit Brits on Friday
Customer: 'Please change your name to occasionally somewhere'
Time Warner Cable customers SQUEAL as US network goes offline
A rude awakening: North Americans greeted with outage drama
We need less U.S. in our WWW – Euro digital chief Steelie Neelie
EC moves to shift status quo at Internet Governance Forum
BT customers face broadband and landline price hikes
Poor punters won't be affected, telecoms giant claims
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.