Radio relay station, radio relay method, radio communication system, location management device, radio terminal, and radio communication method

A radio relay station configured to relay data between a first radio communication device and a second radio communication device, wherein the data is communicated using communication time frames segmented on a time axis, wherein each communication time frame comprises a first period and a second period, and wherein the radio relay station comprises:

• a first transceiver configured to receive data from the first radio communication device in a first period of a first communication time frame and to transmit data to the first radio communication device in a second period of the first communication time frame, wherein a time length of the first period is longer than a time length of the second period;
• a second transceiver configured to transmit data to the second radio communication device and to receive data from the second radio communication device;
• and
• a controller configured to control the second transceiver,
• wherein the controller sets a transmission period that comprises the second period of the first communication time frame and a first portion of a first period of a second communication time frame that is subsequent to the first communication time frame,
• wherein, during the transmission period, the second transceiver transmits data to the second radio communication device in the second period of the first communication time frame, and
• wherein the controller prevents transmission of data from the second transceiver to the second radio communication device during the first portion of the first period of the second communication time frame.