Full duplex using OAM

A method for providing full-duplex communications from a transceiver, comprising:

• transmitting first signals having a first orthogonal function applied thereto on a first channel on a frequency band from a first patch antenna array in a first layer of a multilevel patch antenna array using transmitter circuitry;
• receiving, from a second patch antenna array in a second layer of the multilevel patch antenna array, second signals having a second orthogonal function applied thereto on a second channel on the frequency band from a remote location and the first signals having the first orthogonal function applied thereto on the first channel on the frequency band from the first patch antenna array using receiver circuitry;
• processing only received signals including the second orthogonal function at the receiver;
• and
• wherein the first signals having the first orthogonal function applied thereto and the second signals having the second orthogonal function applied thereto that are simultaneously transmitted and received on a same frequency band from the multilevel patch antenna array do not interfere with one another within the frequency band.

A transceiver for providing full-duplex communications, comprising:

• a multilevel patch antenna array, comprising:
• a first patch antenna array on a first level of the multilevel patch antenna array for transmitting a first carrier signal on a first channel including a first plurality of patch antennas thereon;
• a second patch antenna array on a second level of the multilevel patch antenna array for receiving a second carrier signal on a second channel including a second plurality of patch antennas thereon;
• transmitter circuitry associated with the first patch antenna array for transmitting first signals having a first function applied thereto on a first channel on a first frequency band;
• receiver circuitry associated with the second patch antenna array for receiving remotely transmitted second signals on a second channel on the first frequency band having a second function applied thereto and the first signals transmitted from the first patch antenna array having the first function applied thereto on the first channel on the first frequency band at a same time on the first frequency band, wherein the receiver circuitry only processes received signals including the second function;
• and
• wherein the first function applied to the first signals transmitted from the first patch antenna array and the second function applied to the second signals prevents interference between the first signals and the second signals that are being simultaneously transmitted and received on the first frequency band at the multilevel patch antenna array.