Patent ID: 8655366
Filing Date: 2014-02-18
Classification: H04W

Abstract:
1. A radio base station comprising: a measurement unit that measures uplink interference and a usage rate of resource blocks; a request processing unit that issues a change request of a handover threshold; and a change processing unit that changes the handover threshold in response to the change request, wherein the request processing unit issues the change request of the handover threshold when a first sector is assigned to uplink interference equal to or above a first threshold and a usage rate of resource blocks equal to or below a second threshold, wherein, when a second sector, adjacent to the first sector, is assigned to uplink interference equal to or below a third threshold and a usage rate of resource blocks equal to or above a fourth threshold, the change processing unit changes the handover threshold to accelerate a handover from the second sector to the first sector, thus equalizing uplink interference between the first sector and the second sector, and wherein after changing the handover threshold in response to the change request, the change processing unit resets the change request and restores an original value of the handover threshold when the uplink interference below the first threshold is sustained for more than a redetermined time or when the usage rate of resource blocks becomes higher than the second threshold.