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    Orthogonality and encapsulation for positioning and navigation signals
    2.
    发明授权
    Orthogonality and encapsulation for positioning and navigation signals 有权

    公开(公告)号：US10757713B2

    公开(公告)日：2020-08-25

    申请号：US16046253

    申请日：2018-07-26

    Applicant: QUALCOMM Incorporated

    Inventor： Guttorm Ringstad Opshaug ,  Rayman Wai Pon ,  Jie Wu ,  Naga Bhushan ,  Sven Fischer ,  Stephen William Edge

    IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04 ,  H04W4/02 ,  H04W88/08

    Abstract: Mobile devices often use orthogonal frequency division multiplexing (OFDM) to calculate position information of mobile devices within the network. However, physical distance between the mobile device and a signal source for positioning and other environmental factors can influence the signal strength of received signals. Received signals at the mobile device that are stronger may drown out the weaker signals, particularly when two signal sources occupy the same symbol. In traditional OFDM, a signal source transmits the same symbol for each positioning occasion, so a weaker signal may never be detected over a stronger signal, reducing the accuracy of the positioning calculations. Described herein are systems and methods for using a pattern to vary the designated symbol for each signal source in a wireless network so that a weaker signal from a signal source may be detected on at least some of the positioning occasions.

    Determining multipath in a positioning system
    4.
    发明授权
    Determining multipath in a positioning system 有权

    公开(公告)号：US12019167B2

    公开(公告)日：2024-06-25

    申请号：US17486366

    申请日：2021-09-27

    Applicant: QUALCOMM Incorporated

    Inventor： Rayman Wai Pon ,  Pranav Iyengar

    IPC: G01S19/22 ,  G01S19/42 ,  G01S19/47

    CPC classification number: G01S19/22 ,  G01S19/428 ,  G01S19/47

    Abstract: Methods, systems, computer-readable media, and apparatuses for determination of multipath for determining a location of user equipment (UE) are presented. In some embodiments, the UE may, based on a first indication of signal strength associated with a first polarization type, and a second indication of signal strength associated with a second polarization type, determine an indication of multipath reflection along a path of signal propagation between a space vehicle (e.g., GNSS satellite) and the UE. Circularly polarized positioning signals may be received by the UE via natively present linearly polarized antennas and converted into circularly polarized signals. Converted circularly polarized signals may include right-handed and left-handed components, and signal strengths for each component may be compared to determine the presence of multipath. Positioning signals may be given a weight or disregarded based on the multipath determination when determining the position of the UE.

    Determining a user equipment position within a coverage sub-area of a cell based on cell identity data
    5.
    发明授权
    Determining a user equipment position within a coverage sub-area of a cell based on cell identity data 有权

    公开(公告)号：US11765683B2

    公开(公告)日：2023-09-19

    申请号：US17233387

    申请日：2021-04-16

    Applicant: QUALCOMM Incorporated

    Inventor： Guttorm Ringstad Opshaug ,  Grant Marshall ,  Rayman Wai Pon

    IPC: H04W4/00 ,  H04W64/00 ,  H04W76/11

    CPC classification number: H04W64/006 ,  H04W76/11

    Abstract: Methods, systems, computer-readable media, and apparatuses for determining a UE position within a coverage sub-area of a cell based on cell identity data are presented. In some embodiments, the UE detects one more cell identities, including a cell identity of a serving cell and possibly a cell identity of a neighbor cell of the serving cell. The one or more cell identities are included in cell identity data. The cell identity data is used in a look up of a data structure that associates coverage sub-areas of a coverage area of the serving cell with most likely positions within the coverage sub-areas and with cell identities. The result of the look up indicates that the UE is positioned at a most likely position within a coverage sub-area of the serving cell.

    Determining multipath in a positioning system
    10.
    发明授权
    Determining multipath in a positioning system 有权

    公开(公告)号：US12298411B2

    公开(公告)日：2025-05-13

    申请号：US18627246

    申请日：2024-04-04

    Applicant: QUALCOMM Incorporated

    Inventor： Rayman Wai Pon ,  Pranav Iyengar

    IPC: G01S19/22 ,  G01S19/42 ,  G01S19/47

    Abstract: Methods, systems, computer-readable media, and apparatuses for determination of multipath for determining a location of user equipment (UE) are presented. In some embodiments, the UE may, based on a first indication of signal strength associated with a first polarization type, and a second indication of signal strength associated with a second polarization type, determine an indication of multipath reflection along a path of signal propagation between a space vehicle (e.g., GNSS satellite) and the UE. Circularly polarized positioning signals may be received by the UE via natively present linearly polarized antennas and converted into circularly polarized signals. Converted circularly polarized signals may include right-handed and left-handed components, and signal strengths for each component may be compared to determine the presence of multipath. Positioning signals may be given a weight or disregarded based on the multipath determination when determining the position of the UE.

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