| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient frame structure for wireless communication.SOLUTION: A wireless communication system comprises first and second air interfaces based, e.g., on macrocells and femtocells, and is configured to: frequency division multiplex (FDM) the first and second air interfaces in a downlink subframe of a frame; and time division multiplex (TDM) the first and second air interfaces in an uplink subframe of the frame. |
