Exhibitions

Fraunhofer Institute for Integrated Circuits

Mobile World Congress 2010

 

LTE-A

World Premiere: High quality communication via LTE-A transmission

ACE-Communication

Travelling is part of today's business life. To make the most out of the time on the road Fraunhofer offers innovative audio and transmission technologies. Have a seat at MWC in our car or in the conference room and enjoy high-quality communication via LTE-A.

With the Audio Communication Engine from Fraunhofer IIS it is possible to have a conversational experience that is as natural as having everyone present in the same room however far away one might be. One component is the MPEG Enhanced Low Delay AAC (AAC-ELD) codec for high quality audio. Already implemented worldwide, AAC-ELD supports mono, stereo and multi-channel transmission. Other key features include an efficient multi-channel echo control that allows for hands-free communication without disturbing echoes, and a robust streaming system that ensures superior audio quality even under adverse network conditions.

3G-LTE (Long Term Evolution) systems allow for efficient and low delay data access over wireless. By providing real-time capabilities and a minimum packet delay between 10 and 20 milliseconds, enhanced video and audio stream transmission is also possible for mobile users. Fraunhofer HHI’s department Broadband Mobile Communication Systems and Networks (BM) offers solutions which combine new multimedia applications over LTE and LTE-Advanced technologies. BM’s cross-layer concepts for radio resource management optimize packet based transmission especially for highly occupied cellular LTE networks.

 

Innovative audio technology for mobile devices

broadcast

Fraunhofer IIS supplies optimized audio encoder and decoder libraries for mobile applications, e.g. for the Apple iPhone and other mobile platforms. This versatile family of technologies enables a faster time to market for all radio stations, service providers and streaming app developers. At the same time, the high audio compression helps to reduce the streaming costs associated with internet-based audio services. Fraunhofer IIS’ technologies facilitate the introduction of exciting new applications and improvements to existing mobile services that are sure to attract the attention and interest of consumers.

 

Surround Sound goes mobile

mp3D

Fraunhofer IIS presents MPEG Surround, the new standard for the delivery of stereo-compatible, high-quality surround sound to mobile devices, digital radio receivers and PCs. MPEG Surround can be distributed via digital broadcast systems or online music stores. If a 5.1 loudspeaker setup is not available, mobile devices are able to reproduce the surround sound image on stereo earphones. Music labels including Eagle Rock Entertainment and Telarc International have already endorsed this enhanced music standard. MPEG Surround has been standardized for DAB, DVB and DMB, and is currently undergoing standardization for ISDB-T in Japan. It has also been proposed for ATSC-S4 and 3GPP.

 

HECA

Condictional Access tailored for TPEG (Transport Protocol Experts Group)

HECA

HECA (High Efficiency Conditional Access) protects premium content for delivery to closed target groups using state-of-the-art encryption methods. It was developed specifically for applications involving TPEG and digital distribution systems with or without a feedback channel, e.g. 3G, DAB, HD Radio. Service providers can achieve new business models with flexible combinations of scrambled and unscrambled parts, and employ subscription modes including time-limited, lifetime and pay-per-use. Premium services for travel and traffic information can be received and processed from either in-car navigation devices or portable ones.

 

Autarkic Wi-Fi Positioning for Mobile Devices

Positionsbestimmung für Mobiltelefone mit WLAN

Since a large part of public life takes place in inner cities and enclosed spaces such as shopping malls, office buildings and railroad or subway stations, those are the very places where location-based services are most important. However, despite recent improvements to its receiver technology, GPS is inherently not suited to indoor environments. To address this need, Fraunhofer IIS has developed a position determination solution that works as well in buildings as urban outdoor environments.







Advantages:

  • autarkic positioning without any data communication
  • seamless in- and outdoor positioning
  • ideal accuracy for LBS
  • robust positioning algorithms
  • open partner consortium
  • city-wide test-beds
This solution makes it possible for mobile devices in indoor and urban outdoor environments to independently determine their positions based on signal strength measurements, irrespective of which type of communication network is currently available, e.g. in the form of WLAN, GSM or UMTS base stations. Positions are determined with an accuracy of a few meters. Since wireless networks based on the IE 802.11 (WLAN) family of standards are particularly widespread, they are preferentially used as a basis for position determination.