Pilot signal transmitting method, base station, mobile...

H - Electricity – 04 – W

Patent

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Details

H04W 48/08 (2009.01) H04W 4/06 (2009.01)

Patent

CA 2681590

A pilot signal transmitting method, which achieves an appropriate cell search without increasing in scale or complicating the mobile station structure, is provided along with a base station, a mobile station and a cellular system to which that method is applied. In a cell-specific pilot signal transmitting method for use in a mobile communication system that comprises a base station and a mobile station wireless communicating with the base station in the cell of a wireless communication area formed by the base station and that can mix and then transmit unicast data and broadcast/multicast data as downstream data from the base station to the mobile station, the difference between the start phase of a cell-specific pilot signal transmitted in a subframe in which the base station transmits the unicast data and the start phase of a cell-specific pilot signal transmitted in the next subframe is equal to the difference between the start phase of a cell-specific pilot signal transmitted in a subframe in which the base station transmits the broadcast/multicast data and the start phase of a cell-specific pilot signal transmitted in the next subframe.

L'invention concerne un procédé de transmission de signal pilote, qui effectue une recherche de cellule appropriée sans augmenter la taille, ni compliquer la structure de la station mobile, ainsi qu'une station de base, une station mobile et un système cellulaire auquel ce procédé est appliqué. Dans un procédé de transmission de signal pilote spécifique de cellules utilisé dans un système de communication mobile qui comprend une station de base et une station mobile sans fil communiquant avec la station de base dans la cellule de la zone de communication sans fil formée par la station de base et qui peut mélanger, puis transmettre des données d'unidiffusion et des données de diffusion générale/multiple en tant que données de liaison descendante de la station de base vers la station mobile, la différence entre la phase d'amorce d'un signal pilote spécifique de cellules transmis dans une sous-trame dans laquelle la station de base transmet des données d'unidiffusion et la phase d'amorce d'un signal pilote spécifique de cellules transmis dans une sous-trame suivante est égale à la différence entre la phase d'amorce du signal pilote spécifique de cellules transmis dans une sous-trame dans laquelle la station de base transmet les données de diffusion générale/multiple et la phase d'amorce du signal pilote spécifique de cellules transmis dans la sous-trame suivante.

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