Transmission station, receiving station, wireless communication system, and wireless communication method

A receiving station comprising:

• communication circuitry configured to transmit, to a transmission station, a reception quality of each of a plurality of wireless carriers whose frequency bands differ from one another, the transmission station performing transmission and reception of data with the receiving station by using the plurality of wireless carriers;
• and
• a processor coupled to the communication circuit and configured to set a gap to each of the wireless carriers, the gap being a period during which transmission of the data is stopped and measurement of the reception quality is performed at a given time interval,
• the gap being assigned to the each of the wireless carriers by the transmission station by sorting the wireless carriers in an order of the e reception quality of the each of the wireless carriers, calculating a cyclic period for each of the wireless carriers in accordance with the order of the reception quality of the each of the wireless carriers, retrieving and assigning the gap having the calculated cyclic period for the each of the wireless carriers,
• the gap being arranged by the transmission station in a cyclic period that is shorter for a wireless carrier having a lower reception quality and longer for a wireless carrier having a higher reception quality, and
• wherein the gap is assigned for the each of the wireless carriers within a certain time period.

A wireless communication system comprising:

• a transmission station configured to:
• perform transmission and reception of data with a receiving station by using a plurality of wireless carriers whose frequency bands differ from one another,
• obtain a reception quality of each of the wireless carriers,
• sort the wireless carriers in an order of the obtained reception quality of the each of the wireless carriers,
• calcilate a cyclic period for each of the wireless carriers in accordance with the order of the obtained reception quality of the each of the wireless carriers, and
• retrieve and assign a gap having the calculated cyclic period for the each of the wireless carriers, the gap being a period during which transmission of data is stopped and measurement of the reception quality is performed at a given time interval, and the gap being arranged in a cyclic period that is shorter for a wireless carrier having a lower reception quality and longer for a wireless carrier having a higher reception quality;
• and
• the receiving station configured to:
• transmit, to the transmission station, the reception quality of the each of the wireless carriers, and
• set the gap to the each of the wireless carriers, the gap being assigned to the each of the wireless carriers by the transmission station,
• wherein the gap is assigned to the each of the wireless carriers within a certain time period.

A wireless communication method comprising:

• performing transmission and reception of data between a transmission station and a receiving station by using a plurality of wireless carriers whose frequency bands differ from one another;
• obtaining, in the transmission station, a reception quality of each of the wireless carriers, the reception quality being reported from the receiving station;
• sorting the wireless carriers in an order of the obtained reception quality of he each of the wireless carriers;
• calculating a cyclic period for each of the wireless in accordance with the order of the Obtained reception quality of the each of the wireless carriers;
• and
• retrieving and assigning a gap having the calculated cyclic period the each of the wireless carriers,
• the gap being a period during which transmission of the data is stopped and measurement of the reception quality is performed at a given time interval, and the gap being arranged in a cyclic period that is shorter for a wireless carrier having a lower reception quality and longer for a wireless carrier having a higher reception quality;
• and
• wherein the gap is assigned for the each of the wireless carriers within a certain time period.