Radio base station and radio communication method

A radio communication method performed by a radio base station that performs radio communications with a radio terminal in a radio communication system allowing different radio base stations to serve as an uplink radio communication partner which is a radio communication partner of the radio terminal in an uplink, and a downlink radio communication partner which is a radio communication partner of the radio terminal in a downlink, the radio communication method comprising the steps of:

• transmitting to the radio terminal a handover instruction to handover any one of the uplink radio communication partner and the downlink radio communication partner to another radio base station if the radio base station functions as the uplink radio communication partner and the downlink radio communication partner, and also if a running application which is run at the radio terminal and involves radio communications with the radio base station is not a specific application;
• and
• omitting transmission of the handover instruction if the radio base station functions as the uplink radio communication partner and the downlink radio communication partner, and also if the running application is the specific application.

A radio base station that performs radio communications with a radio terminal in a radio communication system allowing different radio base stations to serve as an uplink radio communication partner which is a radio communication partner of the radio terminal in an uplink, and a downlink radio communication partner which is a radio communication partner of the radio terminal in a downlink, the radio base station comprising:

• an instruction transmitter configured to transmit to the radio terminal an uplink handover instruction to handover the uplink radio communication partner to another radio base station, if an uplink traffic value indicating an amount of traffic being transmitted and received through the radio base station in the uplink exceeds a predetermined value for congestion in the uplink, and also if the radio base station functions as the uplink radio communication partner and the downlink radio communication partner.

A radio base station that performs radio communications with a radio terminal in a radio communication system allowing different radio base stations to serve as an uplink radio communication partner which is a radio communication partner of the radio terminal in an uplink, and a downlink radio communication partner which is a radio communication partner of the radio terminal in a downlink, the radio base station comprising:

• an instruction transmitter configured to transmit to the radio terminal a downlink handover instruction to handover the downlink radio communication partner to another radio base station, if a downlink traffic value indicating an amount of traffic being transmitted from the radio base station in the downlink exceeds a predetermined value for congestion in the downlink, and also if the radio base station functions as the uplink radio communication partner and the downlink radio communication partner.

A radio communication method performed by a radio base station that performs radio communications with a radio terminal in a radio communication system allowing different radio base stations to serve as an uplink radio communication partner which is a radio communication partner of the radio terminal in an uplink, and a downlink radio communication partner which is a radio communication partner of the radio terminal in a downlink, the radio communication method comprising the steps of:

• transmitting to the radio terminal an uplink handover instruction to handover the uplink radio communication partner to another radio base station, if an uplink traffic value indicating an amount of traffic being transmitted and received through the radio base station in the uplink exceeds a predetermined value for congestion in the uplink, and also if the radio base station functions as the uplink radio communication partner and the downlink radio communication partner.

A radio communication method performed by a radio base station that performs radio communications with a radio terminal in a radio communication system allowing different radio base stations to serve as an uplink radio communication partner which is a radio communication partner of the radio terminal in an uplink, and a downlink radio communication partner which is a radio communication partner of the radio terminal in a downlink, the radio communication method comprising the steps of:

• transmitting to the radio terminal a downlink handover instruction to handover the downlink radio communication partner to another radio base station, if a downlink traffic value indicating an amount of traffic being transmitted from the radio base station in the downlink exceeds a predetermined value for congestion in the downlink, and also if the radio base station functions as the uplink radio communication partner and the downlink radio communication partner.