Cellular radiotelephone signal which enables synchronisation at an entity of a supplementary channel by means of symbol numbering, and corresponding method, terminal and base station
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United States of America Patent
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Aug 14, 2012
Grant Date -
Jan 21, 2010
app pub date -
Mar 3, 2005
filing date -
Apr 6, 2004
priority date (Note) -
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Abstract
A cellular radiotelephone signal is disclosed of the type that includes a main symmetrical bi-directional channel comprising a main up-link and a main down-link for the low- or medium-speed transmission of signaling and control information and data; and at least one supplementary channel which is assigned solely to the down-link and which is intended for high-speed data transmission using a multi-carrier technique, which ensures that the data are distributed over frequency/time space and which is structured in the form of pre-defined entities. Each entity contains a pre-determined number of symbols. At least one symbol from each entity of the supplementary channel includes a position identifier, which can be used to identify the position of the symbol within the entity, such that a terminal can read the symbol position identifier and deduce therefrom the start of the next entity, thereby obtaining synchronisation at the relevant entity of the supplementary channel.
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