US 12,658,983 B2 · Aperture magnification using reflective components for spatially multiplexed line of sight communications

Abstract

Methods, systems, and devices for wireless communications are described. The described techniques may enable transmitting and receiving devices to increase an effective aperture size of transmitting and receiving antenna arrays, which may increase an achievable rank of spatially multiplexed communications. For example, one or both of the transmitting device and the receiving device may use a reflective component to reflect signals transmitted between the devices, which may allow for larger effective aperture sizes without increasing a physical distance between antenna elements. In some examples, the reflective component may be a static concave mirror associated with a predetermined weight vector and focal point. In some examples, the concave mirror may be a reflective intelligent surface (RIS) of reflective elements with reflective properties which may be dynamically adjusted to various weight vectors. An orientation of the RIS may be adjusted to steer a beam in various directions in space.

Claims30

Dependent claims

A first wireless device, comprising:

one or more memories storing processor-executable code;
and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the first wireless device to:
perform an adjustment procedure associated with a reflective component of the first wireless device based at least in part on a target rank for spatially multiplexed communications between the first wireless device and a second wireless device, wherein the adjustment procedure adjusts an effective aperture size of a first set of antenna elements of the first wireless device;
and
perform the spatially multiplexed communications with the second wireless device using the reflective component based at least in part on the adjustment procedure and in accordance with the target rank, wherein the target rank of the spatially multiplexed communications is greater than a rank of spatially multiplexed communications that is achievable without reflection via the reflective component.

3 more elements

A reflective intelligent surface (RIS), comprising:

one or more memories storing processor-executable code;
and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the RIS to:
perform an adjustment procedure of the RIS based at least in part on a target rank for spatially multiplexed communications between a first wireless device and a second wireless device, wherein the adjustment procedure adjusts an effective aperture size of a first set of antenna elements of the RIS;
and
reflect at least one signal between the first set of antenna elements of the first wireless device and a second set of antenna elements of the second wireless device, wherein spatially multiplexed communications associated with reflection of the at least one signal are in accordance with the target rank, and wherein the target rank of the spatially multiplexed communications is greater than a rank of spatially multiplexed communications that is achievable without reflection via the RIS.

3 more elements

A method for wireless communications by a first wireless device, comprising:

performing an adjustment procedure associated with a reflective component of the first wireless device based at least in part on a target rank for spatially multiplexed communications between the first wireless device and a second wireless device, wherein the adjustment procedure adjusts an effective aperture size of a first set of antenna elements of the first wireless device;
and
performing the spatially multiplexed communications with the second wireless device using the reflective component based at least in part on the adjustment procedure and in accordance with the target rank, wherein the target rank of the spatially multiplexed communications is greater than a rank of spatially multiplexed communications that is achievable without reflection via the reflective component.

Dependencies are inferred from the claim text.

Aperture magnification using reflective components for spatially multiplexed line of sight communications

Life of this patent

Aperture magnification using reflective components for spatially multiplexed line of sight communications

Life of this patent

Abstract

Claims30