Patent ID: 7904034

Claim:
A method for transmitting data, comprising the steps of: determining two sets of phase shifts indicative of a selected percentage of interference attenuation between signals transmitted by at least one pair of a plurality of transmitters; transmitting, via the plurality of transmitters, a plurality of signals using a first set of the phase shifts in a first time-frequency slot, with each transmitter transmitting a corresponding signal using a corresponding phase shift from among the first set of the phase shifts; and providing said selected percentage of interference attenuation between at least one pair of transmitters by re-transmitting, via the plurality of transmitters, the plurality of signals using a second set of the phase shifts in a second time-frequency slot, with each transmitter transmitting a corresponding signal using a corresponding phase shift from among the second set of the phase shifts, with: all of the phase shifts in one of the first set of the phase shifts and the second set of the phase shifts being equal, and in the remaining set of the phase shifts, at least one pair of the phase shifts used by said at least one pair of transmitters providing said attenuation differing by a selected number of radians.