Analysis
Airvana and KDDI R&D Laboratories Achieve Voice Call Routing Optimization and IP Data Local Breakout Milestones Using Femtocells
Airvana, and the Mobile Network Laboratory of KDDI R&D Laboratories, Inc. (hereinafter “KDDI R&D Labs”), the research and development arm of KDDI Group, today announced the achievement of an important milestone in their joint research on CDMA2000 1x voice call routing optimization for sessions between subscribers using femtocells, and on femtocell local breakout for data sessions. Airvana and KDDI R&D Labs have successfully prototyped two capabilities. The first, Voice Call Routing Optimization, separates voice call signaling and media paths and routes the media path, carrying the call’s content directly between two subscribers’ HubBub™ femtocells. The call signaling path, which contains the signaling messages required to establish and maintain a call, remains routed through the operator’s core network. The second, IP Data Local Breakout, enables mobile handsets to connect directly to other devices in the home network and to the Internet, without going through the operator’s core net
ThesIn the case of Voice Call Routing Optimization, the subscribers’ femtocells are used to establish a direct link for the media path between mobile devices attached to different femtocells for a standard CDMA2000 1x mobile voice call.
“The achievement between our two companies illustrates how femtocells, when deployed in large numbers, will have the potential to enhance mobile networks for the benefit of both the operator and the subscriber,” explained. Dr. Akiba, President and CEO at KDDI R&D Labs. “We’ve effectively shown that operators will be able to use femtocells in a variety of ways to deliver new services and optimize performance of their mobile networks.”
“This work highlights the ‘intelligent network edge’ that femtocells will create for mobile networks, not only for optimizing network capacity and performance, but also for delivering innovative applications,” said Vedat Eyuboglu, CTO, Airvana. “Through prototyping of advanced technologies with KDDI R&D Labs we are working to maximize the full potential of femtocells.”