Airvana and KDDI R&D Laboratories Achieve Voice Call Routing Optimization and IP Data Local Breakout Milestones Using Femt

Ability to route media path between femtocells, home network and Internet demonstrates potential to improve network efficiency and enable new applications

CHELMSFORD, Mass. & TOKYO--(BUSINESS WIRE)-- 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 network.

These advances have the potential to benefit operators through reduced traffic burden on the core network and the ability to offer new femtocell applications as well as to benefit subscribers through improved voice call quality, better user experience with reduced latency and direct access to devices and content on the home network.

In the case of Voice Call Routing Optimization (illustrated in Figure 1), 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.

In the case of IP Data Local Breakout (illustrated in Figure 2), the femtocells are used to create a direct connection between the subscriber’s mobile handset and home network devices such as PCs, printers and digital video recorders. IP Data Local Breakout will enable new services by making the mobile device simultaneously part of both home and mobile networks, while also reducing traffic load on the core network.

“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.”

About Airvana

Airvana helps operators transform the mobile experience for users worldwide. The company’s high-performance technology and products, from comprehensive femtocell solutions to core mobile network infrastructure, enable operators to deliver compelling and consistent broadband services to mobile subscribers, wherever they are. Airvana’s products are deployed in 70 commercial networks on all six continents. The company is headquartered in Chelmsford, Mass., USA, with offices worldwide. For more information, please visit www.airvana.com.

About KDDI R&D Laboratories, Inc.

KDDI R&D Labs is helping to usher in the FMBC age, which will bring the convergence of fixed communications, mobile communications and broadcasting. KDDI R&D Labs is developing the entire array of the communications systems and infrastructure needed to support this age. In the meantime, KDDI R&D Labs is also researching and developing world-leading telecommunications technologies while pursuing extensive initiatives, including next-generation networking and super high-speed wireless transmission technology, security technology, the development of revolutionary applications and pioneering technology to support basic technological infrastructure.

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CONTACT:

Davies Murphy Group
Robert Morton, 781-418-2400
airvana@daviesmurphy.com

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