Radio communication terminal device and radio communication method for forming radio communication terminal network

A radio communication terminal device for use as a receiving side terminal device in a radio communication terminal network with a tree structure in which a plurality of receiving side terminal devices on a downstream side of a source terminal device are connected to the source terminal device, and other receiving side terminal devices on a further downstream side are connected to at least one of the plurality of the receiving side terminal devices, the radio communication terminal device comprising:

• an upstream side control unit configured to search one upstream side device that provides contents data containing speech information among a plurality of upstream side devices or respond to a search from the one upstream side device, and make a connection for communication with the one upstream side device;
• a downstream side control unit configured to respond to a search from one downstream side device that requrests the contents data among a plurality of downstream side devices or search the one downstream side devices, and make a connection for communication with the one downstream side device;
• a radio inpout/output control unit configured to receive the contents data from the one upstream side device and transmit the contents data to the one downstream side device;
• a speech decoding unit configured to decode the speech information contained in the contents data;
• and
• a speech output unit configured to present the speech information decoded by the speech decoding unit in an acoustically audible form.

A radio communication method in a radio communication terminal network with a tree structure in which a plurality of receiving side terminal devices on a downstream side of a source terminal device are connected to the source terminal device, and other receiving side terminal devices on a further downstream side are connected to at least one of the plurality of the receiving side terminal devices, the radio communication method comprising:

• transmitting contents data from the source terminal device to the plurality of the receiving side terminal devices on the downstream side, the contents data containing speeches inputted at the source terminal device;
• relaying and transmitting the contents data at one receving side terminal device among the plurality of the receiving side terminal devices, to one other receiving side terminal devices among the other receiving side terminal devices on the further downstream side;
• extracting the speeches contained in the contents data and outputting the speeches in an audible form at the one receiving side terminal device;
• and
• extracting the speeches contained in the contents data and outputting the speeches in an audible form at the one other receiving side terminal device.