Feeds

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

Unused frequencies mean even more to ignore

Website security in corporate America

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. ®

Internet Security Threat Report 2014

More from The Register

next story
Brit telcos warn Scots that voting Yes could lead to HEFTY bills
BT and Co: Independence vote likely to mean 'increased costs'
Phones 4u slips into administration after EE cuts ties with Brit mobe retailer
More than 5,500 jobs could be axed if rescue mission fails
ISPs' post-net-neutrality world is built on 'bribes' says Tim Berners-Lee
Father of the worldwide web is extremely peeved over pay-per-packet-type plans
New 'Cosmos' browser surfs the net by TXT alone
No data plan? No WiFi? No worries ... except sluggish download speed
Radio hams can encrypt, in emergencies, says Ofcom
Consultation promises new spectrum and hints at relaxed licence conditions
Google+ GOING, GOING ... ? Newbie Gmailers no longer forced into mandatory ID slurp
Mountain View distances itself from lame 'network thingy'
Blockbuster book lays out the first 20 years of the Smartphone Wars
Symbian's David Wood bares all. Not for the faint hearted
Bonking with Apple has POUNDED mobe operators' wallets
... into submission. Weve squeals, ditches payment plans
Vodafone to buy 140 Phones 4u stores from stricken retailer
887 jobs 'preserved' in the process, says administrator PwC
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.