Multiplex communications – Generalized orthogonal or special mathematical techniques
Reexamination Certificate
2007-04-10
2007-04-10
Vu, Huy D. (Department: 2616)
Multiplex communications
Generalized orthogonal or special mathematical techniques
C370S342000
Reexamination Certificate
active
10100145
ABSTRACT:
Exemplary embodiments of the invention provide an equalization method for a downlink channel in a telecommunication system transmitting MC-CDMA symbols on a plurality of carrier frequencies, in which a plurality of links are established between a transmitter and a plurality of receivers in order to transmit a plurality of coded signals, each link using a distinct access code amongst N possible codes, the conjugate product of two possible codes being proportional to a possible code or to its conjugate, the method including, for at least one receiver, a step of calculating a matrix (B, B) characteristic of the plurality of links, the calculation step first of all calculating the elements of a row or a column in the characteristic matrix and deducing the other rows or the other columns by means of a permutation of the elements.
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Mitsubishi Denki & Kabushiki Kaisha
Ryman Daniel
Vu Huy D.
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