Patent ID: 7865150

Claim:
A method of performing wireless LAN (WLAN) communications with a dual band WLAN device, the method comprising: listening for primary communication signals in a primary frequency band; initiating WLAN operations in the primary frequency band when the primary communication signals are detected; listening for secondary communication signals in a secondary frequency band when the primary communication signals are not detected, each frequency band being defined by a standard; and initiating WLAN operations in the secondary frequency band when the secondary communication signals are detected, wherein initiating WLAN operations in the secondary frequency band includes: in a first operation, converting a first signal generated by a primary transceiver in the primary frequency band to the secondary frequency band in a secondary transceiver, the secondary transceiver using features of the primary transceiver to perform as a radio frequency device; and transmitting the first signal in the secondary frequency band; in a second operation, receiving a second signal in the secondary frequency band in the secondary transceiver; converting the second signal to the primary frequency band in the secondary transceiver; and processing the second signal in the primary frequency band in the primary transceiver, wherein the primary transceiver performs all fine gain and frequency adjustments for the primary and secondary transceivers.