Device and method for a mobile station for receiving signals...

H - Electricity – 04 – B

Patent

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H04B 7/02 (2006.01) H04B 1/76 (2006.01) H04B 7/06 (2006.01) H04B 17/00 (2006.01) H04B 1/69 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2294852

A receiving device for a mobile station receives signals transmitted from a base station having a time- switched transmission diversity (TSTD) function. In the receiving device, a despreader despreads channel signals which have been transmitted in a TSTD mode of operation. A pilot separator separates a pilot signal from the despread channel signals. A channel estimator generates a channel estimation signal by selecting pilot signals transmitted from a same antenna of a transmitter according to a TSTD pattern of the transmitter. A compensator compensates the channel signals with the channel estimation signal.

L'invention se rapporte à un dispositif de réception destiné à une station mobile et conçu pour recevoir des signaux émis par une station de base ayant une fonction de transmission en diversité à commutation dans le temps (TSTD time switched transmission diversity). Dans le dispositif récepteur, un désétaleur effectue le désétalement des signaux de voies qui ont été émis en mode de fonctionnement TSTD. Un extracteur de signal pilote extrait un signal pilote des signaux de voies désétalés. Un estimateur de voie génère un signal d'estimation de voie en sélectionnant des signaux pilotes émis à partir d'une même antenne d'un émetteur conformément au modèle TSTD de l'émetteur. Un compensateur compense les signaux de voies avec le signal d'estimation de voie.

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