Patent ID: 6778815
Filing Date: 2004-08-17
Classification: H04B

Abstract:
A mobile radio terminal apparatus capable of making a radio connection in CDMA (Code Division Multiple Access) scheme to one of a plurality of radio base stations connectable to a communication network to conduct communication with a communication station in said communication network, said apparatus comprising:two antennas; antenna selection means for selecting one or the other of said two antennas as an antenna which is to be used, in accordance with a control signal; frame error estimating means for demodulating a signal received via the antenna selected by said antenna selection means and estimating whether or not a predetermined number of frame errors are successively generated in a result of the demodulation; and antenna change control means, in a case where it is estimated by said frame error estimating means that a predetermined number of frame errors are successively generated, for supplying said control signal to said antenna selection means and changing the antenna in use from the antenna selected by said antenna selection means to the other antenna.