Patent ID: 8918106
Filing Date: 2014-12-23
Classification: H04B,H04W

Abstract:
1. A relay station comprising: a reception section that receives a first radio frame sent from a base station; a transmission section that sends a second radio frame that includes a downstream data signal included in the received first radio frame, to a mobile station located in a cell of the relay station; a detecting section that detects a first identifier included in a first radio frame sent from a base station corresponding to a handover-destination cell and the transmission timing of the first identifier, in a handover process of the relay station from a handover-source cell to the handover-destination cell or after the handover process is completed; a first determination section that determines whether the first identifier matches a second identifier serving as an identifier of the cell of the relay station, the second identifier being included in the second radio frame to be sent to the mobile station; a second determination section that determines whether the transmission timing of the first identifier matches the transmission timing of the second identifier sent from the transmission section; and a time shift section that shifts the transmission timing of the second radio frame sent from the transmission section so as to make the transmission timing of the first identifier different from the transmission timing of the second identifier, when it is determined that the first identifier matches the second identifier and that the transmission timing of the first identifier matches the transmission timing of the second identifier.