Mobile Device, Mobile Communication System and Antenna Verification Method

An antenna verification method for a mobile device in a mobile communication system applied with a transmit diversity scheme, comprising:

• calculating correlation values between a received signal from a first antenna of a base station and respective signals in which a received signal from a second antenna of said base station has been phase-rotated by two predetermined candidate phase differences respectively, selecting one of said two candidate phase differences based on these correlation values, and determining a phase difference between said first and second antennas from this selection result and a previous selection result, a weighting processing step of performing a weighting process with respect to said correlation values based on information on the phase difference between said first and second antennas notified from said base station, so that one of said two candidate phase differences is selected based on said correlation values having been subjected to said weighting process.

A mobile communication system applied with a transmit diversity scheme, comprising a mobile device which calculates correlation values between a received signal from a first antenna of a base station and respective signals in which a received signal from a second antenna of said base station has been phase-rotated by two predetermined candidate phase differences respectively, selects one of said two candidate phase differences based on these correlation values, and determines a phase difference between said first and second antennas from this selection result and a previous selection result, wherein

• said mobile device has a weighting processing unit which performs a weighting process with respect to said correlation values based on information on the phase difference between said first and second antennas notified from said base station, so that one of said two candidate phase differences is selected based on said correlation values having been subjected to said weighting process.

An antenna verification method for a mobile communication system applied with a transmit diversity scheme, said mobile communication system comprising a mobile device which calculates correlation values between a received signal from a first antenna of a base station and respective signals in which a received signal from a second antenna of said base station has been phase-rotated by two predetermined candidate phase differences respectively, selects one of said two candidate phase differences based on these correlation values, and determines a phase difference between said first and second antennas from this selection result and a previous selection result,

• in said mobile device, said antenna verification method comprising a weighting processing step of performing a weighting process with respect to said correlation values based on information on the phase difference between said first and second antennas notified from said base station, so that one of said two candidate phase differences is selected based on said correlation values having been subjected to said weighting process.