Patent ID: 9026109
Filing Date: 2015-05-05
Classification: H04J,H04W

Abstract:
1. A radio base station comprising: a channel allocation unit configured to allocate one of a first communication channel and a second communication channel to a radio terminal, the first communication channel affected by interference from an interference source, the second communication channel less affected by the interference from the interference source than the first communication channel; a radio communication unit configured to execute radio communication with the radio terminal via a communication channel allocated by the channel allocation unit; and a performance determination unit configured to determine interference cancellation performance, wherein interference cancellation performance is a measure of an ability of one or more controls to cancel the influence of interference in at least one of the radio terminal and the radio base station, wherein the channel allocation unit allocates one of the first communication channel and the second communication channel to the radio terminal based on the interference cancellation performance determined by the performance determination unit; and a quality acquisition unit configured to acquire reception quality of a radio signal received by the radio terminal from the radio base station, wherein the channel allocation unit allocates one of the first communication channel and the second communication channel to the radio terminal based on the interference cancellation performance determined by the performance determination unit and the reception quality acquired by the quality acquisition unit and wherein the channel allocation unit includes: a comparison unit configured to compare the reception quality with a threshold value, a threshold value control unit configured to control the threshold value in accordance with the interference cancellation performance, wherein the threshold value control unit decreases the threshold value as the interference cancellation performance is higher, and increases the threshold value as the interference cancellation performance is lower, and an allocation execution unit configured to allocate the first communication channel to the radio terminal when the reception quality exceeds the threshold value, and allocate the second communication channel to the radio terminal when the reception quality falls below the threshold value.