Wireless Future - Telenor

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126 6 The ICEBERG project. (2001, March 09) [online] – URL: http://iceberg.cs.berkeley. edu/ 7 3GPP. Virtual Home Environment; Open Service Architecture (Release 1999). Valbonne, 2000. (3G TS 23.127, V3.1.0, 2000- 06.) 8 Parlay Group. (2000, October 24) [online] – URL: http://www.parlay.org 9 IETF. SIP: Session Initiation Protocol, March 1999. New York. (RFC2543) 10 ITU-T. H.323 Recommendation. (2000, October 26) [online] – URL: http://www.itu. int/itudoc/itu-t/rec/h/h323.html#dl 11 OMG. The Common Object Request Broker: Architecture and specification. Revision 2.3, 1999. (2001, March 16) [online] – URL: http://www.omg.org/ 12 Remote Method Invocation Specification. (2001, March 09) [online] – URL: http://java.sun.com/products/jdk/1.1/docs/ guide/rmi/spec/rmiTOC.doc.html 13 Universal Plug and Play Connects Smart Devices. (2000, November 15) [online] – URL: http://www.axis.com/products/documentation/UPnP.doc 14 Salutation Architectures and the newly defined service discovery protocols from Microsoft and Sun. (2000, November 14) [online] – URL: http://www.salutation.org/ whitepaper/JINI-UPnP 15 Discovery and Its Discontents – Discovery Protocols for Ubiquitous Computing. (2000, November 14) [online] – URL: http://www. ncsa.uiuc.edu/People/mcgrath/Discovery/ dp.html 16 Service Location Protocol, Version 2. (2000, November 15) [online] – URL: http://www. rfc-editor.org/rfc/rfc2608.txt 17 An Architecture for a Secure Service Discovery Service. (2000, November 15) [online] – URL: http://ninja.cs.berkeley.edu/dist/ papers/sds-mobicom.pdf Telektronikk 1.2001
Riccardo Pascotto (30) is Project Manager, International Co-operations at T-Nova Deutsche Telekom Innovationsgesellschaft mbH Berkom. He received his diploma in technical computer science from the University of Applied Sciences, Berlin in 1996. He then worked as an engineer for consultation in multimedia communication and software development. Since 1998 he has been Project Manager at T-Nova Berkom working in a number of European research projects contributing to the 4th R&D Framework Programme of the ACTS and TAP. His area of specialisation is mobile multimedia. Currently he is project coordinator of the IST 25034 Youngster project. riccardo.pascotto@telekom.de Georg Neureiter (29) received his B.Engr. in 1991 from the Hoehere Technische Bundeslehranstalt für Nachrichtentechnik in Salzburg and started work at Professional Data Systems AG (Salzburg) where he was responsible for planning, installation and maintenance of structured networks. He resumed his studies in 1995 and graduated from the University of Salzburg with an M.Sc. in telecommunications. He joined T- Nova Deutsche Telekom Innovationsgesellschaft mbH in 1998, and is now involved in international projects as a specialist engineer in the field of GSM network evolution towards next generation networks and location aware services, applications and its associated technologies. georg.neureiter@telekom.de Telektronikk 1.2001 Giving Mobile Users Access to Location-aware Services – Opportunities and Challenges RICCARDO PASCOTTO AND GEORG NEUREITER Location-aware services will play an important role, particularly in providing services for mobile users. Furthermore, market studies have shown that these services have a lot of opportunities and challenges. The IST Youngster project is developing an enhanced active mobile user environment that supports the creation of new and innovative types of services including context-aware solutions based on sensing, collecting, transmitting and processing context information such as terminal characteristics, network status, user location, situation, etc. More details concerning the European research project Youngster are available in the paper “Youngster: Focusing on future users in a mobile world” in this issue of Telektronikk. This paper will give an introduction on location awareness as well as its enabling technologies, discuss key R&D research issues and outline the approaches of the Youngster project. Introduction Imagine you are a youngster aged 16 standing on top of a mountain in the Swiss Alps with some friends. In your backpacks you and your friends have your snowboards along with your outdoorproof handsets of the next generation and would like to share the thrill of surfing down the exciting slopes. The handset itself fulfils two functions: One is that your girlfriend, at home with a broken leg from your latest experience and unable to come along, can watch the live video you provide her through the wireless network. The second function is that there are some hazards in front of you like steep and rocky parts you would prefer to avoid in order not to release an avalanche. All the handsets used are capable of tracking you and your pals, and if something happens your friends will be able to track you and find you in case you get lost or end up under some serious amounts of snow. 1) Key Challenges Current and upcoming technologies will soon allow the establishment of so-called location based services, LBS. Although some of these technologies were developed a long time ago in the military field, it took quite a long time before they found their way to a larger community. Unfortunately, all of these enabling technologies have their advantages and disadvantages, and therefore it seems difficult to rely on only one technology. In addition, they strongly depend on whether the customers are moving around; for example it makes a great deal of difference if the customer is in a dense urban area, in an open landscape, or in a vast unpopulated area like mountains, deserts or the sea. Global mobility also raises another important issue of roaming of location based services. Few network operators have put LBS into operation yet and there might be no way of telling how these few applications will react if the handset is taken abroad. As already mentioned, there is a handful of heterogeneous technologies to determine the location, so if future location based services are to be developed, there is a need for an open interface to “plug-in” the appropriate technology. Thus, a flexible middleware approach seems to be the key issue to future location based services to meet the customer demands in terms of security, rapid and flexible software adaptation towards third parties, and finally support of various positioning technologies. Although the architecture to be developed in the EU-funded Youngster project aims to support context aware services in general, this paper focuses more on location based services, which are on the one hand part of the Youngster project but on the other hand are among the applications to be deployed on such a platform. The various imaginable service scenarios derived from an enabled location based platform are opening a 1) At the moment, there are professional devices available to mountaineers to take along when they go into such an area. Extending the capabilities of a handset in order to find somebody in the snow would add a great deal to saving many lives because despite the danger few take the professional devices with them. 127
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Telektronikk Volume 97 No. 1 - 2001
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Per Hjalmar Lehne (42) obtained his
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Stein Svaet (41) is Senior Research
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distribution layer possible return
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30 A Co-Ordinated Approach to 4G As
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