Showing posts with label rapid. Show all posts
Showing posts with label rapid. Show all posts

Monday, 22 July 2013

Newer versions of LTE to make rapid advances, ABI says

Emerging technologies for 4G LTE networks are expected to make rapid advances over the next few years, helping mobile networks keep up with data growth and bringing more users worldwide into the LTE fold.

By 2018, a majority of the world's LTE subscriptions will be on networks that use either TD (time-division) LTE or features from the emerging LTE-Advanced standard, according to an ABI Research forecast released on Monday.

At the same time that mobile operators are still expanding infrastructure based on FD (frequency-division) LTE, the earliest version of the high-speed mobile system, the two more recent technologies are fast making inroads, according to ABI analyst Nick Marshall. They may dominate networks of large, outdoor "macro" cells by 2015, Marshall said.

TD-LTE uses one band of frequencies to send traffic both downstream and upstream, while FD-LTE uses separate, equal-size bands for the two directions. TD-LTE makes LTE possible in countries that license so-called unpaired spectrum. It also lets operators dedicate more capacity to downstream traffic, such as Web and video content, than to upstream traffic such as photo uploads.

LTE-Advanced is another name for Version 10 of the LTE standard. All the major U.S. operators are expected to deploy elements of it over the next few years. LTE-Advanced will include options for bundling spectrum together, reducing interference among cells and helping big cell towers coordinate with smaller cells used in crowded areas. LTE-Advanced is expected to significantly increase network speeds, but it should also lead to fewer dropped calls and better quality of service for video, Marshall said. The upgrade will also help carriers make more efficient use of their spectrum.

By 2018, 34 percent of LTE subscriptions worldwide will be on networks with LTE-Advanced technology and 24 percent will be using TD-LTE, ABI estimated. At that point, 42 percent of LTE subscriptions will still be on FD-LTE networks using the current generation of technology, Release 8/9, Marshall said. At that time, there will be a total of nearly 1.5 billion LTE subscriptions worldwide, ABI estimates.

China Mobile has garnered much of the attention on TD-LTE because of its very large-scale plans for the technology, which have included deploying more than 20,000 base stations just in a trial network. In 2011, China Mobile formed a partnership with U.S. carrier Clearwire, a TD-LTE user now wholly owned by Sprint, to help generate an ecosystem for TD-LTE equipment and devices. But carriers in many other countries, including India, Japan and the U.K., also have unpaired spectrum and are adopting the system, Marshall said.

LTE-Advanced will come to networks in several waves of new technology, starting with so-called carrier aggregation, which allows mobile operators to bundle diverse frequencies into one virtual spectrum band for higher speeds. Carrier aggregation can be a big boon to carriers and is relatively easy to deploy compared with other aspects of LTE-Advanced, Marshall said.

Other elements of LTE-Advanced are likely to follow after carrier aggregation, though it's not clear how soon, Marshall said. Here are a few of the new features:

-- CoMP (coordinated multipoint transmission/reception), a technique for reducing interference between two macro cells in the area where their signals overlap

-- eICIC (enhanced inter-cell interference coordination) for preventing interference between a macro cell and multiple small cells that are deployed in the area it covers

-- higher-order MIMO (multiple in, multiple out) antenna systems, where both cells and mobile devices could have as many as eight antennas for better connections

There are steep technical challenges that come along with some of these features, such as the need to tightly synchronize base stations. Marshall said. That will require the base stations to talk to each other directly, without going through the core of the network, so they will need faster backhaul connections. Those links may take the form of fiber or fast wireless links, he said.

Thursday, 27 June 2013

Build 2013 keynote: Microsoft unveils Windows 8.1, pledges 'rapid release' schedule

Microsoft formally unveiled Windows 8.1 to developers on Wednesday, with executives promising a “rapid release” schedule to keep the pace of new innovations coming.

 

For those who have read PCWorld’s hands-on of the Windows 8.1 preview, Microsoft’s announcements were nothing new. Executives confirmed the reworking of the Start menu, new boot-to-Desktop options, as well as a slew of updated apps that take advantage of Windows 8.1, which can be downloaded in preview form from preview.windows.com.

 

For Microsoft, the Build 2013 developer conference represents a chance to connect or reconnect with developers, luring them back to the Windows platform. Although Microsoft is nearing 100,000 Windows 8 apps, that still falls well short of the millions of apps that have been written for the Apple iOS and Google Android platforms.

 

For Steve Ballmer, the chief executive of Microsoft, the company is undergoing a transformation to a business that develops devices and services, and not just software. “And the only way that can happen is by a company undergoing a rapid-release schedule,” he said.

 

Although Ballmer and other Microsoft executives focused on Windows 8, they took a few moments to make a few announcements regarding Windows Phone, which provides an interface consistent with that of the other Windows platforms. “It’s beautiful, and it looks like the same software that we have on Windows tablets, Windows PCs, and our Xbox systems,” Ballmer said.

 

New Windows Phones will appear on Sprint. The big news for Windows Phone is that Sprint will add the HTC 8XT as well as the Samsung ATIV S Neo, meaning that Windows Phones will appear on all U.S. wireless carriers.

 

But whether it’s a phone or a tablet, smaller screens will become increasingly important, Ballmer said.

 

”The PC of today doesn’t look a lot like the PC of ...five or seven years ago,” Ballmer said, referring to an “explosion of new devices,” including small-form-factor tablets. Acer’s eight-inch ATIV tablet is “flying off the shelves,” Ballmer said, enabling kids to do homework and do a little bit of entertainment, too.

 

”This small form factor is very important,” Ballmer said.  “I wouldn’t call them PCs, but this small form factor is very important.”

 

Ballmer also promised that hardware makers would deliver Windows 8 devices with touchscreens, a capability that was neglected within early Windows 8 offerings. Consumers will see an “outpouring” of new devices that are notebook computers in every respect, and touch-enabled, Ballmer promised, Customers that have touch systems are much happier than non-touch-enabled customers, or Windows 7 customers, he said.

 

lenovo-ideapad-yoga-13 Ballmer showed off the Helix notebook from Lenovo, a Core i7 device with a full day’s worth of battery enabled with a keyboard dock.. “It literally makes it the most powerful PC, and the most powerful lightweight tablet... should we call it a PC? Should we call it a tablet? I’d call it all Windows, all the time,” Ballmer said.

 

Finally, Ballmer moved to the meat of the presentation, the changes that it had made to make Windows 8.1 a bit more consumer friendly—or in Ballmer’s words, to “refine the blend” between the Start page and the Desktop, among other changes.

 

Ballmer said that the way in which the Desktop and the Start page will be integrated will represent a better blend of both, with boot to Desktop, common backgrounds between the Desktop and the Start page, and other features bringing both together.

 

Combining the Desktop and Start pages "refines the blend," according to Steve Ballmer. Julie Larson-Green, who runs the Windows division at Microsoft, said she was proud of how responsive Microsoft’s engineering team had become.  The company had over 800 updates to the products since Microsoft launched Windows 8 last October, and Windows 8.1 is the biggest.

 

In portrait mode, the new Start screen works well on the new small-form-factor devices, Larson-Green said. The Twitter app has been designed for the new, smaller form factor. With Windows 8.1, she said that Microsoft had added gestures to the on-screen keyboard, where users can slide their fingers across, tap, and then the word appears. Users can also press and hold to access.

 

 

Microsoft's message at Build 2013 is that apps rule—both its own, and the ones created by third-party developers.

Larson-Green showed off the new Mail app, due in the fall. Users will be able to banish or Sweep emails from a certain sender, and then segregate automated emails, such as those from Facebook and Twitter, or subscribed newsletters, into their own folder.

 

Free music streaming from from Xbox Music will comes with Windows 8, Larson-Green said, together with the ability to create a playlist from music it finds on the Web, she said.

 

Larson-Green also showed off personalization features, such as the ability to show photos via the lock screen, the ability to take a Skype call from the lock screen, and Windows 8.1’s ability to add personalized backgrounds. She also briefly explained integrated photo editing, plus new apps including Food & Drink, which can be manipulated via hands-free mode. Basically, all the apps “in Windows 8.1 have either been written for Windows 8.1 or updated for it," she said. Those apps can be snapped together,  with four per widescreen monitor.