A method performed by a first wireless communication device, comprising: receiving a signal from a base station via a control channel including an instruction instructing the first wireless communications device to simultaneously i) transmit uplink data to said base station and ii) transmit device to device data which is different from said uplink data to a second wireless communications device, wherein said signal further includes: information indicating a maximum power that can be used for transmitting said uplink data to said base station, and information indicating a maximum power that can be used for transmitting said device to device data; transmitting, in accordance with said instruction, said uplink data on the uplink spectrum in a first multi-antenna stream corresponding to a first multi-antenna configuration, wherein a transmission power level of the uplink data is controlled in accordance with the maximum power that can be used for transmitting said uplink data to said base station which was recovered from the signal received; transmitting, simultaneously with said uplink data, in accordance with said instruction, said device to device data on the uplink spectrum in a second multi-antenna stream corresponding to a second multi-antenna configuration, said uplink data being different from said device to device data, wherein a transmission power level of the device to device data is controlled in accordance with the maximum power that can be used for transmitting device to device data which was recovered from the signal received; receiving a first acknowledgement from said base station, said first acknowledgement acknowledging receipt of said uplink data; and receiving a second acknowledgement from said base station, said second acknowledgement acknowledging receipt of said device to device data by said second wireless communications device to which said device to device data was transmitted. receiving a signal from a base station via a control channel including an instruction instructing the first wireless communications device to simultaneously i) transmit uplink data to said base station and ii) transmit device to device data which is different from said uplink data to a second wireless communications device, wherein said signal further includes: information indicating a maximum power that can be used for transmitting said uplink data to said base station, and information indicating a maximum power that can be used for transmitting said device to device data; information indicating a maximum power that can be used for transmitting said uplink data to said base station, and information indicating a maximum power that can be used for transmitting said device to device data; transmitting, in accordance with said instruction, said uplink data on the uplink spectrum in a first multi-antenna stream corresponding to a first multi-antenna configuration, wherein a transmission power level of the uplink data is controlled in accordance with the maximum power that can be used for transmitting said uplink data to said base station which was recovered from the signal received; transmitting, simultaneously with said uplink data, in accordance with said instruction, said device to device data on the uplink spectrum in a second multi-antenna stream corresponding to a second multi-antenna configuration, said uplink data being different from said device to device data, wherein a transmission power level of the device to device data is controlled in accordance with the maximum power that can be used for transmitting device to device data which was recovered from the signal received; receiving a first acknowledgement from said base station, said first acknowledgement acknowledging receipt of said uplink data; and receiving a second acknowledgement from said base station, said second acknowledgement acknowledging receipt of said device to device data by said second wireless communications device to which said device to device data was transmitted.