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Approaches to Home Connectivity T-109.7510 Research Seminar on Telecommunications Business Marko Berg
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Agenda Background for Home Connectivity Exemplary Use Case Scenarios Current Technologies Universal Plug and Play (UPnP) Digital Living Network Alliance (DLNA) UPnP and DLNA in the Market Conclusions Questions
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Need for Home Connectivity Technological advances Picture and voice quality Network bandwidth Connection options Communication mechanisms and mobility Resulting in more devices and new functions
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Need for Home Connectivity (2) New ways of acquiring content Over the Internet From local network Cameras Audio and video recording devices Broadcast systems Resulting in the need to transfer content between several devices
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Need for Home Connectivity (3) Technical solutions exist for most problems Discovery of devices in the network Connecting over different types of networks Transferring images, audio and video Storing and sourcing media in a network The issue is one of interoperability and transparency – standardization needed
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Exemplary Use Cases Case 1: Image Display from Multiple Sources
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Exemplary Use Cases (2) Case 2: Video Service Mobility
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Exemplary Use Cases (3) Case 3: Central Media Source
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Current Technologies Zeroconf Bonjour by Apple Jini Java technology Universal Plug and Play (UPnP) Digital Living Network Alliance (DLNA
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Universal Plug and Play Standards developed by UPnP Forum Est. 1999 More than 800 members Designed as a interoperable M2M, P2P protocol Independent of network, protocol, language Device-agnostic – mobile, fixed, CE, PC,... Platform-independent, for virtually any purpose
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Universal Plug and Play (2) Defines Device Control Protocols (DCP) in six device categories Audio/Video Home Automation Networking Printer Remoting Scanner
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Universal Plug and Play (3) Protocol functionality Addressing Discovery Description Control Eventing Presentation
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Digital Living Network Alliance DLNA is an industry consortium Est. 2003, more than 200 members Develops guidelines for home connectivity Home environment seen as three islands of devices Consumer Electronics Mobile Devices PCs and Peripherals
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DLNA (2) Use cases used as a basis for guidelines Use cases built on technology-independent needs – not likely to change soon Accepted standards and practices used Not necessarily open, but accessible
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DLNA (3) Guidelines define building blocks for implementation Technologies defined for all parts of interconnection Network technology Device discovery Media transport Content formats Communication protocols
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DLNA (4) Three device categories Home Network Devices Mobile Network Devices Home Interoperability Devices Targeted only to home environment Future extensions possible
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UPnP and DLNA in the Market More UPnP devices Longer availability Suitable for more specific purposes Devices available in all DLNA categories More promotion by the consortium DLNA also targets consumers
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Conclusions Establisment of DLNA might indicate deficiencies in UPnP UPnP leaves a lot up to the implementations Interoperability might remain partial and focused DLNA provides a heavier, but also more comprehensive solution Impressive support from the industry Might have better chances in the long run
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Questions? Thank you!
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