This application provides a communication method and apparatus, and relates to the field of communication technologies. In the method, a terminal may send, to a network device, a quantity of radio frequency channels supported on each of a plurality of carriers when the terminal performs uplink transmission on the plurality of carriers in TDM mode. In this method, the terminal may report, to the network device, a quantity of radio frequency channels used on each carrier when the terminal performs uplink transmission in TDM mode, so that the network device can configure, for the terminal based on an actual capability of the terminal, the quantity of radio frequency channels used on each carrier in TDM mode. This improves an uplink transmission capability of the terminal.