Radio communication device and radio communication method

H - Electricity – 04 – W

Patent

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Details

H04W 24/00 (2009.01)

Patent

CA 2695342

Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit (201) which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit (202) which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit (208) which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.

L'invention concerne un dispositif de communication radio qui peut empêcher un brouillage entre un signal de référence de sondage (SRS) et un canal PUCCH lorsque la largeur de bande de transmission PUCCH fluctue et supprimer une dégradation de la précision d'estimation d'indicateur de qualité de canal (CQI) par la bande dans laquelle aucun SRS n'est transmis. Le dispositif comprend une unité de génération de code SRS (201) qui génère un SRS (Signal de Référence de Sondage) pour mesurer une qualité de canal de données de liaison montante ; une unité d'arrangement SRS (202) qui multiplexe en fréquence le SRS sur la bande de transmission SR et l'arrange ; et une unité de commande d'arrangement SRS (208) qui commande le multiplexage de fréquence SRS pour qu'il soit uniforme en fréquence sans modifier la largeur de bande d'une unité de multiplexage SRS conformément à la fluctuation de la largeur de bande de transmission de signal de référence selon les informations d'arrangement SRS transmises par la station de base et commande en outre l'intervalle de transmission du SRS multiplexé en fréquence.

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