NICTA demonstrates new interference-cancellation modem for 3G femtocell networks

Nov 10, 2009

(PhysOrg.com) -- NICTA, Australia’s Information and Communications Technology (ICT) Research Centre of Excellence, has successfully demonstrated technology that reduces the amount of radio interference in 3G networks with femtocells.

A femtocell is a small wireless base station that connects to the telephone network via a home or office . Targeted at people using 3G mobile connections indoors, where they may encounter mobile coverage ‘black spots’, a femtocell provides significant improvements in coverage and capacity.

from other 3G connections is recognised as one of the top issues in femtocell networks. NICTA has developed technology to address such interference. A real-time proof-of-concept test in Canberra last week showed the NICTA femtocell connecting to multiple 3G devices. The test verified that NICTA’s uplink interference cancellation (ULIC) technology successfully and substantially reduced radio interference in the uplink.

When integrated into system-on-chip products, the NICTA technology will increase service quality for 3G mobile devices, improve coverage and capacity, and minimise the impact on legacy wireless infrastructure. The ULIC technology, developed by NICTA’s InterfereX project team, is believed to be a world-first. The demonstrator is realised fully in programmable , thereby providing a straightforward path to a low-cost, small footprint silicon chip implementation.

NICTA InterfereX Project Leader Dr Mark Reed said the design was the result of many years of research and development effort. “Our unique design approach was based on discussions with industry on the need for a low-cost design capable of minimising the impact on legacy wireless infrastructure by using advanced interference cancellation techniques. Our innovative architecture and design methodology has allowed us to deliver this.”

The test configuration used a universal tester from electronics company Rohde & Schwarz as one of the 3G devices connected to the NICTA femtocell. The R&S CMU300 universal radio communication tester provided an excellent test platform for validation of the InterfereX design and made development and test easier through the graphical user interface and internal signal setup and generation options.

Rohde & Schwarz test solutions support the latest 3GPP specifications, and are applicable from design and production through conformance testing of components and mobile terminals. With the R&S CMU-K78 WCDMA hardware and R&S CMU-K70/71/75/78 option, the creation of WCDMA uplink and downlink signals of excellent quality is straightforward and convenient.

Provided by NICTA

Explore further: Say it with light: Using LEDs to move data faster

Related Stories

AT&T rolls out 3G MicroCell device in Charlotte

Oct 07, 2009

AT&T's new device is what's known as a femtocell: a machine that plugs into your existing high-speed Internet connection and then broadcasts a cell phone signal throughout your house (or office or mountain lair, etc.). You ...

A cellphone base station in every home

Mar 10, 2008

If you've ever had trouble getting a connection for your cellphone in your home, you could soon take matters into your own hands. Instead of relying on an overworked base station, consumers may be able to ...

NEC Demonstrates 3G (W-CDMA) In-building Solutions

Mar 10, 2005

NEC Corporation demonstrates its latest 3G (W-CDMA) in-building solutions to provide indoor radio network services realizing the most-optimized mobile environment covering in-building and out-door to mobile operators and ...

Intel Demonstrates Its First Mobile Wimax Baseband Chip

Dec 06, 2006

Intel Corporation today announced design completion of its first mobile WiMAX baseband chip. Combined with the company’s previously announced single-chip, multi-band WiMAX/Wi-Fi radio, the pair creates a complete chipset ...

Recommended for you

Timing is everything in Tour de France sprints

1 hour ago

They say there is no such thing as second place in the Tour de France. The competition is hot, and the individual cyclists and their teams need to cover every possible detail in order to get the edge require ...

Cuba's new wifi hotspots attract eager users

Jul 03, 2015

Near the popular Hotel Habana Libre in Cuba's capital, a gaggle of young people on cellphones, tablets and laptops log onto the new wifi hotspot—a small milestone in one of the least connected countries.

EU roaming charges to be abolished in 2017 (Update)

Jun 30, 2015

The European Union said Tuesday it had struck a deal to abolish mobile phone roaming charges in 2017, ending fees loathed by millions of holidaymakers and business travellers across Europe.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.