Radio transmitting apparatus, radio receiving apparatus, radio communication system, and integrated circuit

A radio transmitting apparatus that includes a plurality of transmit antennas, selects one of a plurality of multiplexing methods, and multiplexes and simultaneously transmits transmit data that are addressed to a plurality of radio receiving apparatuses, the radio transmitting apparatus comprising:

• a scheduling section that selects any one group from a plurality of groups that represent combinations of a plurality of radio receiving apparatuses;
• and
• a transmit symbol generating section that generates a transmit signal by multiplexing data to be transmitted to the plurality of radio receiving apparatuses that belong to the selected group by the multiplexing method that is in advance determined corresponding to an identification number that is added to the selected group.

An integrated circuit, which is implemented in a radio transmitting apparatus that includes a plurality of transmit antennas to allow the radio transmitting apparatus to execute a plurality of functions, wherein

• the plurality of functions includes
• a function of selecting any one group from a plurality of groups that represent combinations of a plurality of radio receiving apparatuses, and
• a function of generating a transmit signal by multiplexing data to be transmitted to the plurality of radio receiving apparatuses that belong to the selected group by the multiplexing method that is in advance determined corresponding to an identification number that is added to the selected group.

A transmitting method of a radio transmitting apparatus that includes a plurality of transmit antennas, selects one of a plurality of multiplexing methods, and multiplexes and simultaneously transmits transmit data that are addressed to a plurality of radio receiving apparatuses, the method comprising:

• a step of selecting any one group from a plurality of groups that represent combinations of a plurality of radio receiving apparatuses;
• and
• a step of generating a transmit signal by multiplexing data to be transmitted to the plurality of radio receiving apparatuses that belong to the selected group by the multiplexing method that is in advance determined corresponding to an identification number that is added to the selected group.