Radio receiving method and apparatus for frame

The present invention discloses a method and device for receiving radio frames species. Wherein, the method comprising: channel signal strength of the functional entities of these sites is detected reaches a predetermined threshold, the first functional entity starts to receive the radio frame, and the second functional entity transmits the channel detection result of the site is busy indication; first functional entity determines the site target reception station is not a radio frame, the radio frame transmitted and received to indicate the end of the second functional entity; at the end of the radio frame transmission, the first functional entity transmits the channel detection result to the second functional entity to indicate busy. By the present invention, there is provided a receiving operation processing flow of a radio frame without having to abandon the function of the updated NAV sites.