Invention Grant
- Patent Title: Orbital angular momentum transmission and reception using intelligent reflecting surfaces
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Application No.: US17685264Application Date: 2022-03-02
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Publication No.: US11984953B2Publication Date: 2024-05-14
- Inventor: Mehmet Izzet Gurelli , Qiang Wu , Junyi Li , Tao Luo , Ozge Koymen , Navid Abedini , Mohammad Ali Tassoudji
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP/Qualcomm Incorporated
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04B7/0456

Abstract:
Aspects of the present disclosure relate to utilizing an intelligent reflecting surface (IRS), a tracking algorithm, or both, to receive, calibrate, and maintain orbital angular momentum (OAM) signaling between wireless devices. The present disclosure describes a first wireless device transmitting spatial-multiple input-multiple output (MIMO) beams to the IRS such that reflected waves from the IRS form a spatial mixture of OAM modes. The IRS may reflect such OAM modes to a second wireless device for subsequent reflection (e.g., a second IRS), reception, calibration, and optimization. For example, the second wireless device may perform pattern recognition of the concentric OAM modes (e.g., by estimating ellipse geometry) to determine the modes of the OAM signaling. The second wireless device may also perform decorrelation, where small perturbations to the elliptical OAM geometry allow the second wireless device to perform one or more optimization techniques related to the OAM signaling.
Public/Granted literature
- US20230283336A1 ORBITAL ANGULAR MOMENTUM TRANSMISSION AND RECEPTION USING INTELLIGENT REFLECTING SURFACES Public/Granted day:2023-09-07
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