Radio channel assignment control method in mobile communication

Abstract

Abstract PURPOSE:To improve the utilization factor of a frequency by providing 1st and 2nd antennas and selecting an antenna used for the communication with a mobile set in response to the quantity of a reception of a radio wave from the mobile set by both the antennas. CONSTITUTION:The system is provided with the 1st antenna 19 to be the 1st radio zone 23 of each base station as an object and with a 2nd antenna 28 to be the 2nd radio zone 24 as an object having a vertical planer directivity more downward than that of the 1st antenna 19, and an antenna used for the communication with a mobile set is selected depending on the quantity of a reception level of a radio wave from the mobile set by both antennas. That is, the beam tilt antenna 18 is used in common for the system and the reception level by this antenna is used for deciding the position of the mobile set. Thus, the position of the mobile set is accurately decided and when the distance between the base station and the mobile set is a prescribed distance or below, since a channel used repetitively at a zone closer than the usual state is assigned, the effect of reuse partition is enhanced.

Inventors

• 👤 Masayuki Sakamoto
• 👤 坂本　正行

Bibliographic Details