BASE STATION HAVING DIVERSITY ANTENNA FOR UNIDIRECTIONAL CHANNEL TRANSMISSION AND TRANSMISSION METHOD FOR UNIDIRECTIONAL CHANNEL BY BASE STATION

摘要

PROBLEM TO BE SOLVED: To receive a signal sent from a diversity antenna of a base station at a mobile station with best quality. ;SOLUTION: A base station has at least two antennas A, B and a means 2 selecting either of the antennas. The selection means 2 has a means 3 that decides whether or not a channel to be sent to at least one of mobile stations 5₁-5₃ is unidirectional, and a means 4 that selects one antenna into other antenna according to a prescribed rule at random or at pseudo random when the unidirectionality of the channel to be sent is reported to a changeover means by the decision means 3.;COPYRIGHT: (C)1999,JPO