Feeds

Tokyo 250Mbps mobile supernetwork speeds into life

Did you see it? There it goes again....

Build a business case: developing custom apps

Japan's largest operator has built a mobile network offering massive download speeds of 250Mbps.

NTTDoCoMo's network near Tokyo is only a test, but the operator expects to complete development of the technology next year. Commercial networks could follow soon after. It's pushing technical standards to the limit in magicking out the 250Mbps speed, although it claims speeds could in theory reach 300Mbps. Upstream data can be transmitted on the network at up to 75Mbps.

The network is based on long-term evolution (LTE), an enhancement of 3G and HSDPA which is using four multiple-input multiple-output (MIMO) antennae. It's a lot faster than current networks - HSDPA offers just 14Mbps downstream while 3G provides a mere 384Kbps. Both those figures are theoretical speeds - actual experiences have been far slower.

3G is available across the majority of the UK, but HSDPA is still much more limited.

As well as providing extra bandwidth, LTE has other benefits. It should provide less delay than 3G and it's more spectrally efficient, meaning it'll save operators like NTT a yen or two. It also works over both 2G and 3G frequencies.

Before it's released commercially, a range of issues have to be tested, including the ability of users to roam between base stations without losing the call.

NTT plans to give more details of its network to the Americans at a trade show on 1 April. It has dubbed LTE as both "Super 3G" and 3.9G - which looks set to cause confusion, as HSDPA has also been called Super 3G. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
UK fuzz want PINCODES on ALL mobile phones
Met Police calls for mandatory passwords on all new mobes
Canadian ISP Shaw falls over with 'routing' sickness
How sure are you of cloud computing now?
Don't call it throttling: Ericsson 'priority' tech gives users their own slice of spectrum
Actually it's a nifty trick - at least you'll pay for what you get
Three floats Jolla in Hong Kong: Says Sailfish is '3rd option'
Network throws hat into ring with Linux-powered handsets
Fifteen zero days found in hacker router comp romp
Four routers rooted in SOHOpelessly Broken challenge
New Sprint CEO says he will lower axe on staff – but prices come first
'Very disruptive' new rates to be revealed next week
US TV stations bowl sueball directly at FCC's spectrum mega-sale
Broadcasters upset about coverage and cost as they shift up and down the dials
Trans-Pacific: Google spaffs cash on FAST undersea packet-flinging
One of 6 backers for new 60 Tbps cable to hook US to Japan
Tech city types developing 'Google Glass for the blind' app
An app and service where other people 'see' for you
UK mobile coverage is BETTER than EVER, networks tell Ofcom
Regulator swallows this line and parrots it back out at us. What are they playing at?
prev story

Whitepapers

5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
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.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.