Patent ID: 7953446

Claim:
A system for a transmitter comprising: a plurality of antennas to define a respective plurality of fixed beams which together cover a coverage area; for each antenna, a respective signal generator to generate a respective signal comprising a common overhead component common to all the signals, using a spreading code common to all the signal generators; transceiver circuitry coupling the signal generators to the antennas such that a respective one of the signals is transmitted by each corresponding antenna, the signals to be transmitted substantially simultaneously; for each pair of said antennas having overlapping beams within said coverage area, the respective pair of signal generators to use the spreading code with a mutual micro-timing offset that is large enough that destructive cancellation substantially does not occur between the common overhead components transmitted on the overlapping beams, wherein a first spreading code used to generate a signal by a first of the pair of signal generators is offset by the mutual micro-timing from a second spreading code used to generate a signal by a second of the pair of signal generators.