Mobile terminal, control station, communication method, communication program, and control program

A portable terminal comprising:

• receiving means for receiving information about the number of relays of a signal to another portable terminal;
• and
• transmitting means for determining whether the signal to the other portable terminal is to be transmitted, based on the information about the number of relays of the signal to the other portable terminal, and controlling transmission of the signal, based on a result of the determination.

A control station used in a system having at least one service area and configured to provide a radio communication service to a portable terminal, the control station comprising:

• receiving means for receiving a transmission request to a portable terminal;
• and
• determining means for determining at least one service area for transmission of a relayable signal that can be transmitted to a portable terminal as a target for said transmission request via a portable terminal other than said target portable terminal.

A control station used in a system having at least one service area and configured to provide a radio communication service to a portable terminal, the control station comprising:

• receiving means for receiving a transmission request to a portable terminal;
• and
• determining means for determining at least one service area for transmission of a relayable signal that can be transmitted to a portable terminal as a target for said transmission request via a portable terminal other than said portable terminal, based on information about the portable terminal as a target for the transmission request.

A communication method in a portable terminal, comprising:

• a receiving step of receiving a signal to another portable terminal;
• and
• a transmitting step of transmitting the signal to the other portable terminal.

A control method used in a system having at least one service area and configured to provide a radio communication service to a portable terminal, the control method comprising:

• a receiving step of receiving a transmission request to a portable terminal;
• and
• a determining step of determining at least one service area for transmission of a relayable signal that can be transmitted to a portable terminal as a target for the transmission request via a portable terminal other than said target portable terminal.

A control method used in a system having at least one service area and configured to provide a radio communication service to a portable terminal, the control method comprising:

• a receiving step of receiving a transmission request to a portable terminal;
• and
• a determining step of determining at least one service area for transmission of a relayable signal that can be transmitted to a portable terminal as a target for the transmission request via a portable terminal other than said portable terminal, based on information about the portable terminal as a target for the transmission request.

A control program for letting a computer, which is mounted on a control station used in a system having at least one service area and configured to provide a radio communication service to a portable terminal, execute the following steps:

• a receiving step of receiving a transmission request to a portable terminal;
• and
• a determining step of determining at least one service area for transmission of a relayable signal that can be transmitted to a portable terminal as a target for the transmission request via a portable terminal other than said target portable terminal, based on information about the portable terminal as a target for the transmission request.