By Xiaodong Yang
“European has already built profitable criteria long ago, and i'm very con?dent that at the foundation of DVB-H, cellular television companies can developtheeconomiesofscaletheyneedfortake-upacrossEuropeandaround the world,” With those phrases of EU’s Telecom Commissioner Viviane Reding, DVB-H is destined to be a dominating cellular television expertise in Europe or even on this planet. i used to be ?rst going in contact with the DVB expertise while i used to be doing my PhD study in Brunel college in united kingdom in 2002. at the moment DVB-T used to be already a mature and commonplace electronic broadcast know-how and an individual may possibly simply purchase a DVB-T receiver out there to aim the electronic broadcast indications which have been already broadcasted in united kingdom due to the fact 1998. Then the DVB expertise international replaced dramatically. As a extra ?exible and powerful terr- trial broadcast approach concentrating on handsets, DVB-H was once constructed in response to DVB-T. In 2003 the DVB-H neighborhood have been always operating to ?n- ize the traditional. eventually in November 2004 DVB-H was once followed as an ETSI normal EN 302 304. i used to be fortunate to work out a lot of these alterations whilst i used to be doing my PhD learn in DVB expertise. and that i used to be very proud to be thinking about the di?erent DVB-H study initiatives because the starting of the DVB-H ordinary improvement level. i used to be additionally fortunate sufficient that i'm one of many ?rst individuals who ?nished PhD measure through concentrating on DVB-H learn.
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Extra info for Handover in DVB-H: Investigation and Analysis
1 Motivation 25 Service handover is shown in Fig. 3. In this case when the receiver moves from one cell to another, it begins to receive a transport stream that is diﬀerent from the one it received in the original cell. DVB-H is intended to carry IP data services. In order to provide diverse IP data services it is expected that a DVB-H cell will usually be smaller than a DVB-T cell . There are also other reasons why a DVB-H cell is usually smaller than a DVB-T cell. They are low-gain DVB-H receiver antenna, low height of DVB-H transmitter antenna, building penetration losses for DVB-H indoor reception and fast fading in a mobile environment .
E. recorded) bitstreams. It carries a summary of the SI information required to describe the streams in the partial bitstream. 14. e. recorded) bitstreams. It is inserted where the SI information in the partial bitstream may be discontinuous. Update Notiﬁcation Table (UNT) • The main function of the UNT table is to describe the availability and location of the System Software Update services. UNT makes the IPDC DVB-H Receiver know where, when and how the System Software Update services can be found.
Handover Related Information In NIT According to [72, 74] Descriptor Network name descriptor Purpose/Content Contains network name information Service list descriptor Contains services listings Linkage descriptor Contains information accessing INT Frequency list descriptor Contain a list of frequencies for a transport stream Cell list descriptor Contains a list of cells and subcells including their coverage areas Contains a list of Cell frequency link descriptor cells and frequencies used for the transport streams Contains information about Terrestrial delivery system descriptor the centre frequency, bandwidth, code rate, etc.