US 2018/0006376 A1 · MASSIVELY MULTI-USER MIMO USING SPACE TIME HOLOGRAPHY

Abstract

Disclosed are antenna systems, wireless antenna controllers, and related methods. An antenna system includes a configured to receive an electromagnetic (EM) signal and propagate the EM signal as an EM reference wave. The antenna system also includes a tunable EM scattering elements, and a wireless controller. A wireless antenna controller includes an EM emitter configured to emit EM radiation to EM filters. The EM filters are configured to pass different sub-ranges of a frequency range of the EM radiation to the tunable EM scattering elements. A method includes wirelessly controlling the tunable EM scattering elements to deliver a different information streams to different far-end locations. A method includes controlling the EM emitter to modulate frequency content of the EM radiation to cause the tunable EM scattering elements to operate collectively according to different modulation patterns.

Claims45

Dependent claims

An antenna system, comprising:

one or more feeds configured to receive an electromagnetic (EM) signal and propagate the EM signal as an EM reference wave;
a plurality of tunable EM scattering elements spaced at sub-wavelength distances, the plurality of tunable EM scattering elements configured to operate in at least two different operational states to selectively scatter the EM reference wave as a radiated wave;
and
a wireless controller configured to wirelessly control the plurality of tunable EM scattering elements and modulate the radiated wave over time to deliver a plurality of different information streams to a plurality of different far-end locations by modulating the plurality of tunable EM scattering elements between the plurality of different operational states over time.

1 more element

A wireless antenna controller, comprising:

an electromagnetic (EM) emitter configured to controllably emit EM radiation of a frequency range to a plurality of tunable EM scattering elements through a plurality of EM filters configured to pass different sub-ranges of the frequency range to different ones of the plurality of tunable EM scattering elements, the plurality of tunable EM scattering elements configured to operate in a plurality of different scattering states responsive to the sub-ranges of the frequency range;
and
control circuitry operably coupled to the EM emitter, the control circuitry comprising at least one data storage device including computer-readable instructions stored thereon and at least one processor operably coupled to the at least one data storage device and configured to execute the computer-readable instructions, wherein the computer-readable instructions are configured to instruct the at least one processor to control the EM emitter to modulate frequency content of the EM radiation to cause the plurality of tunable EM scattering elements to operate collectively according to a plurality of different modulation patterns.

A method of operating an antenna system, the method comprising:

applying an electromagnetic (EM) signal to one or more feeds configured to receive and propagate the EM signal as an EM reference wave;
scattering the EM reference wave as a radiated wave with a plurality of tunable EM scattering elements spaced at sub-wavelength distances, the plurality of tunable EM scattering elements configured to operate in at least two different operational states;
and
wirelessly controlling the plurality of tunable EM scattering elements with a wireless controller to modulate the radiated wave over time to deliver a plurality of different information streams to a plurality of different far-end locations by modulating the plurality of tunable EM scattering elements between the plurality of different operational states over time.

1 more element

Dependencies are inferred from the claim text.

Massively multi-user mimo using space time holography

Life of this patent

Massively multi-user mimo using space time holography

Life of this patent

Abstract

Claims45