Full duplex using OAM

A transceiver for transmitting and receiving full duplex communications, comprising:

• transmitter circuitry for transmitting from a first location first signals having a first orthogonal function applied thereto on a first channel on a first frequency band to a second location;
• receiver circuitry for receiving at the first location second signals on a second channel on the first frequency band from the second location having a second orthogonal function applied thereto and receiving the first signals having the first orthogonal function applied thereto on the first channel on the first frequency band from the transmitter circuitry at a same time on the first frequency band, wherein the receiver circuitry only processes received signals including the second orthogonal function;
• wherein the first signals on the first channel are transmitted on the first frequency band at a same time the second signals on the second channel are received on the first frequency band;
• and
• wherein application of the first orthogonal function to the first signals and application of the second orthogonal function to the second signals prevents interference between the first signals and the second signals that are being simultaneously received at the first receiver circuitry and the second receiver circuitry on the first frequency band.

A transceiver for transmitting and receiving full duplex communications, comprising:

• transmitter circuitry for transmitting from a first location first signals having a first orthogonal f unction applied thereto on a first channel on a first frequency band to a second location, wherein the first orthogonal function +ln comprises a first orbital angular momentum function +ln;
• receiver circuitry for receiving at the first location second signals on a second channel on the first frequency band from the second location having a second orthogonal function applied thereto and receiving the first signals having the first orthogonal function applied thereto on the first channel on the first frequency band from the transmitter circuitry at a same time on the first frequency band, wherein the receiver circuitry only processes received signals including the second orthogonal function, wherein the second orthogonal function −ln comprise a second orbital angular momentum function −ln;
• wherein the first signals on the first channel are transmitted on the first frequency band at a same time the second signals on the second channel are received on the first frequency band;
• and
• wherein application of the first orthogonal function to the first signals and application of the second orthogonal function to the second signals prevents interference between the first signals and the second signals that are being simultaneously received at the first receiver circuitry and the second receiver circuitry on the first frequency band.

A method for providing full-duplex communications between a first transceiver and a second transceiver, comprising:

• simultaneously transmitting first signals having a first orthogonal function +ln applied thereto on a first channel on a frequency band from a first location to a second location using a first transmitter of a first transceiver, wherein the first orthogonal function +ln comprises a first orbital angular momentum function +ln;
• simultaneously receiving second signals having a second orthogonal function −ln applied thereto on a second channel on the frequency band from the second location aid receiving the first signals having the first orthogonal function +ln applied thereto on the first channel on the frequency band from the first transmitter using a first receiver of the first transceiver, wherein the second orthogonal function −ln comprise a second orbital angular momentum function −ln;
• processing only received signals including the second orthogonal function −ln at the first receiver;
• and
• wherein the first signals having the first orthogonal function +ln applied thereto aid the second signals having the second orthogonal function −ln applied thereto that are simultaneously received at the first receiver circuitry and the second receiver circuitry on a same frequency band between the first location and the second location do not interfere with one another within the frequency band.