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Kommunikatsiooniteenuste arendus IRT0080
Loeng 2/2010 Avo Ots telekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst.
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Mobiilne lairiba
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Kasutajad
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Jaotus
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Standardite valmimine
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Milline algidee
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Majandus
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Mõju
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Bitikiirus lõppkasutaja tarvis
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Sekeldused juhtmtega
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Mobiili eelised ...
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Tulude tagamine
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Teeninduse ulatus
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3G võrguliiklus
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“Mobiilne” taksofon
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Mobiilne lairiba > spektrivajadus
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Spektrikasutus
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FDD <-> TDD
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Digital dividend The switchover from analogue to digital TV broadcasting means that substantially less radio spectrum will be required to maintain the delivery of the previous analogue broadcast services. Some of this spectrum will be used to provide additional TV channels as well as high definition broadcasts but there will still be spectrum that can be released to support other applications such as IMT-2000 or IMT-Advanced. How useful this spectrum might be depends on the extent to which it can be harmonised internationally and two possible options have been considered here, namely Channels 61 – 69 (790 – 862 MHz) and 56 – 69 (750 – 862 MHz), across the European Union based on the GE-06 plan.
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Kõik kulud kokku
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Ajaraam
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Kiirusehinnangud
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WiMAX
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HSPA
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I M S
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...tegevus 2.5 GHz alas...
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Lingid http://en.wikipedia.org/wiki/MMDS
ervices ds
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