Patent ID: 11870532
Assignee: CELLIUM TECHNOLOGIES, LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method for replicating an exact frequency match among a plurality of output signals associated with spatial multiplexing, comprising:
receiving, in a converter, a plurality of input signals occupying respectively a plurality of different frequency ranges, in which each of the plurality of input signals is an orthogonal frequency division multiplexing (OFDM) signal comprising a plurality of sub-carriers, and in which the plurality of input signals are associated respectively with a plurality of streams all occupying a single frequency range and generated in conjunction with spatial multiplexing;
obtaining, in the converter, a reference signal associated with a plurality of original conversion signals, in which the plurality of original conversion signals were used originally outside the converter to establish respectively said plurality of different frequency ranges;
utilizing the reference signal, in the converter, to reproduce the plurality of original conversion signals in a form of a respective plurality of replica conversion signals; and
using, in the converter, the plurality of replica conversion signals to respectively convert the plurality of input signals into the plurality of output signals, the plurality of output signals all occupying the single frequency range thereby causing the plurality of sub-carriers of any of the plurality of output signals to now exactly match in frequency a respective plurality of sub-carriers of any of the other output signals, thereby now enabling wireless transmission and successful decoding of the plurality of output signals, or a derivative thereof, in conjunction with the spatial multiplexing.