H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 11/04 (2006.01) H04B 7/185 (2006.01) H04L 12/56 (2006.01) H04J 13/00 (2006.01)
Patent
CA 2349929
The invention concerns a method for transmitting digital signals in asynchronous mode whereby the terminals (16, 18) transmit to a common station (20). The communications are transmitted by cells (40, 42, 44, 46) and the terminals successively transmitting at separate periods (60, 62, 64, 66; 70, 72, 74), to each cell being assigned at least two orthogonal codes (C1, C2, C3, C4). The invention is characterised in that the duration of the period during which each terminal transmits, and/or the number of codes assigned to each terminal, and/or the number of symbols of one specific code assigned in a terminal can be selected at each transmission, according to the a specific power level (80).
L'invention concerne un procédé de transmission de signaux numériques en mode asynchrone dans lequel des terminaux (16, 18) émettent vers une même station (20). Les communications sont transmises par cellules (40, 42, 44, 46) et les terminaux émettant successivement selon des périodes séparées (60, 62, 64, 66; 70, 72, 74), à chaque cellule étant affectés moins deux codes orthogonaux (C1, C2, C3, C4). Selon l'invention, la durée de la période pendant laquelle chaque terminal émet, et/ou le nombre de codes affectés à chaque terminal, et/ou le nombre de symboles affectés d'un code déterminé dans un terminal sont sélectionnables à chaque émission, en fonction d'un niveau de puissance (80) déterminé.
Alcatel
Robic
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