Method and arrangement for antenna selection control in a radio receiver

DETAILED DESCRIPTION Starting from this prior art, it is the object of the invention to specify a method and an arrangement of the type mentioned at the beginning which method and which arrangement, respectively, on the basis of tailored driving of the antenna provides the best possible quality of reception for different receiving conditions and different faulty received signals of the relevant radio receiver, in particular the base station of a cordless telephone.
The object of the invention is achieved with the following method and apparatus.
The method is for controlling antenna selection in a radio receiver, having a plurality of antennas having a device for measuring field strengths of received signals, and having a central processor, which forms at least one threshold value from the measured field strengths.
Via the central processor realizing different selection procedures are realized as a function of measured field strength values of received signals and as a function of their overshooting or undershooting a first threshold value.
Within each selection procedure a decision is made to activate one of the plurality of antennas of the radio receiver independently of the first threshold value.
The arrangement for controlling antenna selection has: means assigned to the central processor for realizing different selection procedures as a function of measured field strength values of received signals and as a function of their overshooting or undershooting of a first threshold value; and means for making, during each selection procedure a decision to activate one of the plurality of antennas of the radio receiver independently of the first threshold value.
The arrangement according to the invention analyses the receiving conditions and, as a function of specific criteria (measured field strength overshoots or undershoots a threshold value), realizes different selection procedures, the decision to activate one of a plurality of receiving antennas being performed within each procedure irrespective of the respective criterion