Wireless transmitting apparatus, wireless receiving apparatus, wireless communication system, wireless transmitting method and wireless receiving method

Abstract

To enable shared control information to be demodulated without requiring advance information on a MIMO block or non-MIMO block prior to demodulation of the shared control information of the block, and further enable the shared control information to be demodulated early. A wireless transmitting apparatus which performs wireless transmission in MIMO or non-MIMO for each radio frame comprised of a block or a plurality of blocks, and has mapping sections ( 110 - 1 to 110 - n ) that perform mapping of pilot signals to perform propagation path estimation, specific data, and user data, where the mapping sections perform mapping so that the specific data is transmitted in non-MIMO in the block or the radio frame transmitted in MIMO, and that an antenna that transmits the specific data is beforehand associated with an antenna that transmits a pilot signal to perform propagation path estimation.

1 . A wireless transmitting apparatus in a wireless communication system, which is comprised of the wireless transmitting apparatus that has a plurality of transmission antennas and a wireless receiving apparatus that has a plurality of reception antennas, the wireless transmitting apparatus comprising:
 a plurality of transmission antennas, wherein at least one transmission antenna of the plurality of transmission antennas is configured to transmit, to the wireless receiving apparatus, MIMO data or non-MIMO data for each block comprised of a plurality of sub-blocks; and   a circuit configured to perform:
 control to generate the non-MIMO data to transmit the non-MIMO data to the wireless receiving apparatus using only one transmission antenna of the plurality of transmission antennas, and 
 control to generate the non-MIMO data to transmit the non-MIMO data to the wireless receiving apparatus using all transmission antennas of the plurality of transmission antennas. 
   
     
     
         2 . The wireless transmitting apparatus according to  claim 1 , wherein the circuit is further configured to perform control to generate the MIMO data to transmit the MIMO data to the wireless receiving apparatus using said all transmission antennas of the plurality of transmission antennas. 
     
     
         3 . The wireless transmitting apparatus according to  claim 1 , wherein said control is performed in a certain slot. 
     
     
         4 . The wireless transmitting apparatus according to  claim 3 , wherein the circuit is further configured to perform, in a certain slot, control to generate the MIMO data to transmit the MIMO data to the wireless receiving apparatus using said all transmission antennas of the plurality of transmission antennas. 
     
     
         5 . A transmitting method of a wireless transmitting apparatus in a wireless communication system, which is comprised of the wireless transmitting apparatus that has a plurality of transmission antennas and a wireless receiving apparatus that has a plurality of reception antennas, the transmitting method comprising:
 transmitting, MIMO data or non-MIMO data, to the wireless receiving apparatus, for each block comprised of a plurality of sub-blocks by using at least one transmission antenna of the plurality of transmission antennas;   controlling generation of the non-MIMO data to transmit the non-MIMO data to the wireless receiving apparatus using only one transmission antenna of the plurality of transmission antennas; and   controlling generation of the non-MIMO data to transmit the non-MIMO data to the wireless receiving apparatus using all transmission antennas of the plurality of transmission antennas.   
     
     
         6 . The transmitting method according to  claim 5 , further comprising:
 controlling generation of the MIMO data to transmit the MIMO data to the wireless receiving apparatus using said all transmission antennas of the plurality of transmission antennas.   
     
     
         7 . The transmitting method according to  claim 5 , wherein said control is performed in a certain slot. 
     
     
         8 . The transmitting method according to  claim 7 , further comprising:
 controlling, in a certain slot, generation of the MIMO data to transmit the MIMO data to the wireless receiving apparatus using said all transmission antennas of the plurality of transmission antennas.   
     
     
         9 . A circuit causing a wireless transmitting apparatus to exhibit a function by being mounted in the wireless transmitting apparatus in a wireless communication system, which is comprised of the wireless transmitting apparatus that has a plurality of transmission antennas and a wireless receiving apparatus that has a plurality of reception antennas, the circuit causing the wireless transmitting apparatus to exhibit the function of performing:
 transmitting, MIMO data or non-MIMO data, to the wireless receiving apparatus, for each block comprised of a plurality of sub-blocks by using at least one transmission antenna of the plurality of transmission antennas;   controlling generation of the non-MIMO data to transmit the non-MIMO data to the wireless receiving apparatus using only one transmission antenna of the plurality of transmission antennas; and   controlling generation of the non-MIMO data to transmit the non-MIMO data to the wireless receiving apparatus using all transmission antennas of the plurality of transmission antennas.   
     
     
         10 . The circuit according to  claim 9 , further causing the wireless transmitting apparatus to exhibit a function of performing:
 controlling generation of the MIMO data to transmit the MIMO data to the wireless receiving apparatus using said all transmission antennas of the plurality of transmission antennas.   
     
     
         11 . The circuit according to  claim 9 , wherein said control is performed in a certain slot. 
     
     
         12 . The circuit according to  claim 11 , further causing the wireless transmitting apparatus to exhibit a function of performing:
 controlling, in a certain slot, generation of the MIMO data to transmit the MIMO data to the wireless receiving apparatus using said all transmission antennas of the plurality of transmission antennas.   
     
     
         13 . A non-transitory computer-readable medium having instructions stored thereon, such that when the instructions are read and executed by a processor, the processor is configured to perform said transmitting method according to  claim 5 . 
     
     
         14 . A wireless transmitting apparatus comprising:
 a non-transitory computer-readable medium having instructions stored thereon, such that when the instructions are read and executed by a processor, the processor is configured to perform said transmitting method according to  claim 5 .   
     
     
         15 . The wireless transmitting apparatus according to  claim 1 , further comprising:
 a non-transitory computer-readable medium having instructions stored thereon, such that when the instructions are read and executed by a processor, the processor is configured to function as the means of the wireless transmitting apparatus according to  claim 1 .