A communication control apparatus (10#0) comprising: a control unit configured to decide transmission power for uplink multiplex communication from a plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4) in a wireless local area network on the basis of information obtained through reception from the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4), wherein a multiplex scheme of the uplink multiplex communication includes a space division multiplex scheme or a frequency division multiplex scheme for the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4); a processing unit configured to generate a trigger frame including transmission power information indicating the transmission power for the uplink multiplex communication decided by the control unit ; and a communication unit configured to transmit the trigger frame generated by the processing unit to the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4), and receive, from one of the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4), a frame including transmission power range information indicating a range of transmission power settable in said communication apparatus, wherein the control unit is configured to decide transmission power which falls within the range indicated by said transmission power range information as the transmission power for the uplink multiplex communication, and wherein the communication unit is configured to transmit the trigger frame using multicasting, the trigger frame including information regarding the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4) and multiplex communication target information indicating one of the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4) which is an uplink multiplex communication target. a control unit configured to decide transmission power for uplink multiplex communication from a plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4) in a wireless local area network on the basis of information obtained through reception from the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4), wherein a multiplex scheme of the uplink multiplex communication includes a space division multiplex scheme or a frequency division multiplex scheme for the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4); a processing unit configured to generate a trigger frame including transmission power information indicating the transmission power for the uplink multiplex communication decided by the control unit ; and a communication unit configured to transmit the trigger frame generated by the processing unit to the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4), and receive, from one of the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4), a frame including transmission power range information indicating a range of transmission power settable in said communication apparatus, wherein the control unit is configured to decide transmission power which falls within the range indicated by said transmission power range information as the transmission power for the uplink multiplex communication, and wherein the communication unit is configured to transmit the trigger frame using multicasting, the trigger frame including information regarding the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4) and multiplex communication target information indicating one of the plurality of communication apparatuses (10#1, 10#2, 10#3, 10#4) which is an uplink multiplex communication target. <EOS>