| 摘要 |
PROBLEM TO BE SOLVED: To disclose information for adjusting a direction of a directional antenna of a radio base station device so as to grant communication capacities requested by a plurality of radio terminal station devices, respectively.SOLUTION: Communication capacities requested by a plurality of radio terminal station devices are registered, to the direction of a directional antenna, a correspondent modulation system is calculated by detecting communication qualities of received signals at the plurality of radio terminal station devices and for each radio terminal station device, the number of slots required for granting the communication capacity is calculated on the basis of a transmission rate by slot corresponding to the modulation system. A total slot number that is obtained by summing up the numbers of slots for the plurality of radio terminal station devices is compared with the number of slots for a TDMA transmission frame. If the total slot number is equal to or less than the number of slots for the TDMA transmission frame, it is displayed that the direction of the directional antenna is good (OK) but if the total slot number exceeds the number of slots for the TDMA transmission frame, it is displayed that the direction of the directional antenna is bad (NG). |
