Self organizing network for heterogeneous LTE networks developed by NEC

Feb 14, 2011

NEC Corporation announced today the development of Self Organizing Network technologies for its heterogeneous LTE network composed of mixed coverage base stations. NEC's latest SON technologies successfully tackle two of the most challenging scenarios in LTE deployment: traffic hotspot and multiple user mobility. This maintains a high quality user experience in various challenging environments while significantly reducing operators' CAPEX and OPEX.

SON solutions reduce the Operation and Maintenance (O&M) cost of mobile networks by using automated and intelligent procedures to replace human intervention without compromising network performance. However, a major challenge to the design and development of SON technologies is how to achieve high quality user experience and optimize the network in a heterogeneous network while taking into account varying regional traffic characteristics and user mobility.

NEC's small cell LTE solution enables mobile operators to install new base stations in any traffic hotspot area without the need to modify their existing networks. By applying NEC's SON technologies, NEC's small cell eNBs can independently recognize the distribution and movement of users automatically and tune dynamically various parameters to optimize its coverage and improve the cell-edge performance. This could help achieve more uniform and stable high quality user experience at densely populated traffic hotspot areas.

NEC has developed handover optimization in its SON technologies to provide high quality transmission for users with various mobility characteristics. In its design, handover settings from macro to small cell coverage are automatically adjusted in response to transmission conditions. For example, macro base stations can dynamically restrain handover to small cell base stations for the fast-moving user. On the other hand, macro base stations favour the handover to small cell base stations for slow moving or static terminals.

The performance of these developed SON technologies are thoroughly evaluated and tested by using NEC's unique 3-dimensional simulator, which is more close to the real world compared its 2-D counterparts. The performance results demonstrate that, by using NEC's SON technologies, the cell edge users' user data rate was increased up to 2 times, especially for terminals previously located near the edge of base station coverage. In addition, the radio link failure rate was significantly reduced.

will exhibit these technologies at Stand 8A125 at "Mobile World Congress 2011" in Barcelona, Spain from February 14 - 17, 2011.

Explore further: Netflix joining line-up of three US cable-TV services

add to favorites email to friend print save as pdf

Related Stories

Siemens debuts the world’s smallest EDGE base station

Nov 15, 2005

With the new nanoEDGE base stations from Siemens Communications, it is now possible for the first time to provide full wireless coverage with EDGE technology even in what used to be shadowed areas inside buildings, for example, ...

Breakthrough for mobile television

Feb 09, 2010

Long Term Evolution, the new mobile telecommunications standard, will revolutionize mobile Internet. High transmission rates will soon be possible on mobile devices. For this purpose Fraunhofer researchers at HHI Berlin, ...

Recommended for you

Internet TV case: US justices skeptical, concerned

Apr 23, 2014

Grappling with fast-changing technology, U.S. Supreme Court justices debated Tuesday whether they can protect the copyrights of TV broadcasters to the shows they send out without strangling innovations in ...

Hundreds in Mexico protest telecommunications law

Apr 23, 2014

Hundreds of students and activists marched in Mexico's capital Tuesday to protest a telecommunications law being debated by the Senate that they say will allow the government to arbitrarily censor Internet content.

User comments : 0

More news stories

Google+ boss leaving the company

The executive credited with bringing the Google+ social network to life is leaving the Internet colossus after playing a key role there for nearly eight years.

Facebook woos journalists with 'FB Newswire'

Facebook launched Thursday FB Newswire, billed as an online trove of real-time information for journalists and newsrooms to mine while reporting on events or crafting stories.

Genetic legacy of rare dwarf trees is widespread

Researchers from Queen Mary University of London have found genetic evidence that one of Britain's native tree species, the dwarf birch found in the Scottish Highlands, was once common in England.