Radio communication system, radio base station, and communication control method

摘要

A radio communication system includes a first radio base station that forms a first cell; a plurality of second radio base stations each of which forms a second cell; and a mobile station provided with a radio communication unit that connects, by radio, to each radio base station. The first radio base station specifies a correction value according to the number of the second cells formed in the first cell of the first radio base station and signals the correction value to the mobile station. The mobile station corrects a characteristic value indicating the reception characteristic of radio waves from the second radio base station by using the correction value. Either the first radio base station or the mobile station selects the destination of the mobile station according to the characteristic value of the first radio base station and the corrected characteristic value of the second radio base station.

主权项

1. A radio communication system comprising:
a first radio base station that forms a first cell; a plurality of second radio base stations each of which forms, in the first cell, a second cell having a smaller area than the first cell; and a mobile station comprising:
a radio communication unit that connects, by radio, to each of the first radio base station and the second radio base station that correspond to cells among the first cell and the second cells in which the mobile station is located; anda characteristic-value measuring section that measures a first characteristic value indicating a reception characteristic of radio waves received from the first radio base station and a second characteristic value indicating a reception characteristic of radio waves received from the second radio base station; the first radio base station comprising:
a correction-value specifying section that specifies, according to a number of the second cells formed in the first cell of the first radio base station, a correction value used to correct the second characteristic value; anda correction-value signaling section that signals the correction value specified by the correction-value specifying section to the mobile station; the mobile station comprising a characteristic-value correcting section that corrects the second characteristic value measured by the characteristic-value measuring section, by using the correction value signaled from the correction-value signaling section of the first radio base station, wherein either the first radio base station or the mobile station selects either the first radio base station or the second radio base station corresponding to a characteristic value indicating the best reception characteristic between the first characteristic value and the corrected second characteristic value, as a radio destination of the mobile station.