Rep. Itu-r bt. 2025 report itu-r b
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3.1.4.2 The system conceptThe basic concept (Fig. 3.1) is to make the “Wired” world accessible to the “Wireless” world through the combined use of DAB and mobile/wireless packet data systems. The connection between the two worlds is made by introducing a Datacasting Server which provides the interface between the information (or content) providers (mostly Internet but also other types of multimedia data services) and the two communication infrastructures, the radio broadcasting system and the telecommunication system. The Multimedia Data Provider gathers data services from the various sources whose content is appealing to users in motion. This data is channelled to the Datacasting Server which prepares this data for transmission either over DAB or via the narrow-band telecom link (telephone switch and then wireless packet data network, here labelled PCS) to the mobile unit. A return link is provided at the mobile unit by the wireless data network service. The mobile terminal is able to integrate DAB data and audio, GPS (Global Positioning System) and two-way PCS services through a rather complex but user-friendly MMI (man-machine interface), common to all services. 
FIGURE 3.1 [2025-031] Directory: dms pub -> itu-r -> opb -> rep rep -> Report itu-r m. 2243 (11/2011) rep -> Report itu-r bt. 2053-2 (11/2009) L rep -> Report itu-r m. 2038 Technology trends rep -> Report itu-r sa. 2312-0 (09/2014) rep -> Report itu-r rep -> Report itu-r sm. 2179 (09/2010) Short-range radiocommunication devices measurements rep -> Report itu-r rep -> Report itu-r rs. 2194 (10/2010) rep -> Report itu-r rs. 2165 (09/2009) Download 2.21 Mb. Share with your friends:
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