A method of controlling base station transmitting power...

H - Electricity – 04 – W

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H04W 52/04 (2009.01) H04W 52/40 (2009.01)

Patent

CA 2308651

A mobile station in a CDMA cellular radio system transmits a possibly unique power control command every power control group time when the mobile station is in contact with a single base station. When the mobile station is in soft handoff (in communication with two or more base stations simultaneously), however, the mobile station sends the same power control command for several power control group times, thus reducing the probability of receiving an erroneous power control command at a base station. The base stations synchronize their power levels periodically according to a predetermined number of power control command groups, resulting in more optimum base station power transmission levels, in turn resulting in a reduction in system noise and an increase in system capacity.

Une station mobile d'un système CDMA de radio cellulaire transmet une commande possiblement unique à chaque temps de réglage de puissance lorsqu'elle est en communication avec une station de base. Toutefois, lorsque la station mobile effectue un transfert intercellulaire sans coupure (au cours d'une communication avec deux stations de base ou plus), elle donne la même commande de réglage de puissance pour plusieurs temps de réglage de puissance, réduisant ainsi les probabilités qu'une station de base reçoive une commande de réglage de puissance erronée. Les stations de base synchronisent périodiquement leur niveau de puissance en fonction d'un nombre prédéterminé de groupes de commande de réglage de puissance, ce qui optimise les niveaux de transmission des stations de base et réduit du coup le bruit de système tout en accroissant la capacité dudit système.

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