Cdma receiving apparatus and cdma receiving method

H - Electricity – 04 – B

Patent

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H04B 1/707 (2006.01) H04J 13/04 (2006.01)

Patent

CA 2327101

A switching control unit (204) receives mode information representing whether the present state of the station is in an initial synchronization mode of when the power is turned on or in a standby mode of when a cell is moving, and controls a switch (205) and a switch (211) so that correlation may be done by a matched filter (209) in the initial synchronization mode and by a sliding correlator (210) in the standby mode. In the CDMA radio communication system, therefore, the initial synchronization can be established in a short time while reducing the current consumption.

Dans cette invention, un dispositif (204) de commande de commutation reçoit des informations de mode représentatives de l'état actuel de la station en mode de synchronisation initiale lorsque le courant est établi, ou en mode d'attente lorsqu'une cellule est en déplacement. Ce dispositif de commande de commutation commande un premier commutateur (205) et un second commutateur (211) pour que la corrélation puisse être effectuée par un filtre correspondant (209) dans le mode de synchronisation initiale, et par un corrélateur coulissant (210) dans le mode d'attente. Ainsi, on peut effectuer en peu de temps la synchronisation initiale dans le système de radiocommunication AMCR, tout en réduisant la consommation de courant.

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