Patent ID: 7466962

Claim:
A method of providing a radio frequency local oscillator signal for a full-duplex transceiver having a time-offset between transmit and receive operation, the method comprising the steps of: determining whether a selected timeslot is available; selecting the selected timeslot when the selected timeslot is available; assessing a radio frequency local oscillator frequency at multiple timeslots including the selected timeslot to provide a radio frequency local oscillator signal at the multiple timeslots; assessing a duplex local oscillator frequency at multiple timeslots including the selected timeslot to provide a duplex local oscillator signal at the selected timeslot; assessing an offset timeslot of the multiple timeslots that is offset by a predefined transmitter-to-receiver timeslot offset value from the selected timeslot; mixing the duplex local oscillator signal and the radio frequency local oscillator signal to provide a converted radio frequency local oscillator signal at the multiple timeslots based at least in part on a predetermined condition, for either a transmit or receive function, exclusively, wherein the predetermined condition is f Dm =f RFLO — N+m −f RFLO — m +D where f Dm is the duplex local oscillator frequency, f RFLO — N+m is the radio frequency local oscillator frequency at timeslot N+m, f RFLO — m is the radio frequency local oscillator frequency at timeslot m, and D is the duplex spacing value such that N+m=mod(N+m)k, where N is the transmitter-to-receiver timeslot offset value, m is the selected timeslot, and k+1 is the number of timeslots per frame; and providing the converted radio frequency local oscillator signal at multiple timeslots.