Patent ID: 7580449

Claim:
A DSSS and OFDM two-way waiting reception method in a wireless LAN apparatus supporting DSSS and OFDM, the DSSS and OFDM two-way waiting reception method comprising the steps of: (a) maintaining in the wireless LAN apparatus a two-way waiting state if none of an RSSI trigger, an OFDM search trigger, and a DSSS search trigger is generated; (b) making a transition to an RSSI-activated OFDM reception state in the wireless LAN apparatus if the RSSI trigger is generated in the two-way waiting state; (c) making a transition to a DSSS reception state in the wireless LAN apparatus if an OFDM synchronization loss trigger is generated in the RSSI-activated OFDM reception state; (d) making a transition to an OFDM search-activated OFDM reception state in the wireless LAN apparatus if the OFDM search trigger is generated in the two-way waiting state; (e) making a transition to the DSSS reception state in the wireless LAN apparatus if the DSSS search trigger is generated and the OFDM synchronization loss trigger is generated in the OFDM search-activated OFDM reception state; and (f) making a transition to the DSSS reception state in the wireless LAN apparatus if the DSSS search trigger is generated in the two-way waiting state.