MOBILE COMMUNICATION METHOD AND ITS EQUIPMENT

摘要

PURPOSE:To increase number of channels secured in a definite range of frequency band by dividing the frequency band into different carrier intervals and using each carrier interval for different channels. CONSTITUTION:A carrier selector 21 selects carriers with a wide carrier interval when a distance between a base station and a mobile station is remote and selects carriers with a narrow carrier interval when the distance is small based on the measured distance. That is, the carrier selector 21 makes the carrier interval not constant and selects the carrier interval in use depending on the distance between the base station and the mobile station. When the mobile station is resident around the center of the cell, the carriers with a narrow carrier interval are selected and when the mobile station is resident around the edge of the cell, the carriers with a wide carrier interval are selected thereby increasing number of available carriers while keeping desired quality in all the carriers.