[Object] To provide a transmission apparatus, reception apparatus, and information processing method which enable a wireless device to carry out wireless transmission with less power consumption. [Solution] A transmission apparatus includes: a communication unit configured to transmit a transmission signal from the transmission apparatus to a reception apparatus via wireless communication; and a signal processing unit configured to generate the transmission signal in which transmission information is spread by using a spreading code selected according to identification information of the transmission apparatus, in order to enable the reception apparatus to acquire the identification information on the basis of an estimation result of the spreading code used for the transmission signal.