Preamble design for multicarrier transmission over channels with multiple inputs and outputs

摘要

The present invention provides an apparatus for configuring a preamble portion of a data signal for transmission over a plurality of sub-carriers by at least two transmitter devices each having at least two antennas. The apparatus includes a preamble insertion circuit configured to assign a respective pseudo-noise (PN) code to each of said at least two antennas, assign each of said plurality of sub-carriers to a respective one of said at least two transmitter devices and modulate each of said plurality of sub-carriers as a function of said respective pseudo-noise (PN) code that is assigned to a same one of said at least two transmitter devices to which said each of said plurality of sub-criers is assigned such that a plurality of modulated sub-carriers are obtained tat are each assigned to a respective one of said at least two transmitter devices. The at least two antennas of said at least two transmitter devices are configured to transmit, at substantially a same time, each of said plurality of modulated sub-carriers using each of said at least two antennas of its assigned transmitter device.