发明名称 |
ORDNUNG EINES OFDM-SIGNALS ZUR VEREINFACHUNG DES EMPFANGS |
摘要 |
The invention relates to a signal intended to be transmitted towards a plurality of receivers, of the type comprising at least two source signals and consisting of a plurality of independently modulated substantially orthogonal carrier frequencies distributed over a predetermined frequency band. According to the invention, said frequency band (12) is divided into at least two frequency sub-bands (131-134) each comprising a set of said substantially orthogonal carrier frequencies (11), and to each of said sub-bands is allocated one of said source signals, so that a receiver may retrieve from the transmitted signal, by filtration, at least one of said sub-bands and perform demodulation processing only on the carrier frequencies contained in the retrieved sub-bands. The invention also relates to a transmission process as well as to a receiver of such signal. |
申请公布号 |
DE69525624(T2) |
申请公布日期 |
2002.10.31 |
申请号 |
DE1995625624T |
申请日期 |
1995.06.13 |
申请人 |
FRANCE TELECOM, PARIS;TELEDIFFUSION DE FRANCE, PARIS |
发明人 |
MICHON, VINCENT;LE FLOCH, BERNARD;SUEUR, BERTRAND;RIVIERE, MARC |
分类号 |
H04J11/00;H04L5/02;H04L27/26;H04N5/00;H04N5/44 |
主分类号 |
H04J11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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