Abstract
Coupled with the growing interest in the Universal Mobile Telecommunication System (UMTS) as a standard for future mobile communications, the need for a set of functions to effectively support multimedia teleservices in such an environment is also increasing. Starting from the idea that multimedia means the integrated manipulation of different information and hence the independent handling of separate information is not satisfactory, an enhanced protocol architecture for the support of multimedia teleservices in Wireless Personal Communication Systems based on UMTS is proposed. It involves Physical, MAC, Data Link, and Network layers. A Synchronisation Sub-Layer is introduced on the MAC level with the main aim of assuring a rough multimedia inter-stream synchronisation over the air interface, which is a first step prior to a fine end-to-end synchronisation performed by higher layers. Proposed functions, their basic algorithms, their location in the protocol stack, as well as the signalling exchange among modules implementing them, on network and user sides, are described in detail in the paper. The resulting architecture well fits the demanding nature of multimedia services and can be easily interfaced with the wired backbone of the system.
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Iera, A., Marano, S. & Molinaro, A. A layered protocol architecture for multimedia wireless‐PCS networks. Mobile Networks and Applications 3, 73–87 (1998). https://doi.org/10.1023/A:1019104227387
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DOI: https://doi.org/10.1023/A:1019104227387