System for switching base stations in mobile communications

Details System for switching base stations in mobile communications System for switching base stations in mobile communications

H - Electricity

04

B

H04B 7/02 (2006.01) H04B 7/216 (2006.01) H04B 7/26 (2006.01) H04B 7/005 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2270523

A CDMA/TDD type radiocommunication system and a method therefor. At the time of switching the base station of a communication partner in accordance with movement, a moving station monitors the received electric power of data, as received from a peripheral base station, by a received power detector ( l2). When the received power from a base station other than the main one in communication exceeds a preset value, the base station is employed as a follower one to transmit the same data as those of the main base station so that the data from the main and the follower base stations are simultaneously received by a correlator (5) and a correlator (6). When the received power of the follower base station then exceeds that of the main one, the moving station switches the main base station to the follower base station and transmits the data to a new base station.

L'invention concerne un système de radiocommunication du type AMCR/DRT, ainsi qu'un procédé permettant la mise en oeuvre de ce système. Lors de la commutation de la station de base d'un partenaire de communication en fonction d'un déplacement, une station en déplacement surveille la puissance électrique de données reçue en provenance d'une station de base périphérique, au moyen d'un détecteur de puissance reçue (12). Lorsque la puissance reçue à partir d'une station de base autre que la station principale en communication dépasse une valeur préréglée, la station de base est utilisée comme station suiveuse pour émettre les même données que celles de la station de base principale, de sorte que les données émises par la station de base principale et par la station de base suiveuse soient simultanément reçues par un corrélateur (5) et un autre corrélateur (6). Lorsque la puissance reçue en provenance de la station de base suiveuse excède alors celle provenant de la station de base principale, la station en déplacement commute la station de base principale sur la station de base suiveuse et transmet les données à une nouvelle station de base.

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