公开(公告)号：US20240272305A1

公开(公告)日：2024-08-15

申请号：US18627246

申请日：2024-04-04

Applicant: QUALCOMM Incorporated

Inventor： Rayman 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.

公开(公告)号：US20230096975A1

公开(公告)日：2023-03-30

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

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.

公开(公告)号：US20230067256A1

公开(公告)日：2023-03-02

申请号：US17411864

申请日：2021-08-25

Applicant: QUALCOMM Incorporated

Inventor： Rayman PON ,  Pranav IYENGAR ,  Liang ZHAO

IPC: H04K3/00 ,  H04W64/00 ,  H04W76/25 ,  H04B7/22 ,  H04W88/02

Abstract: A satellite signal processing method includes: receiving, at a user equipment, a first satellite signal of a first frequency band from at least one satellite of a constellation of satellites; receiving, at the user equipment, a second satellite signal of a second frequency band and from the at least one satellite of the constellation of satellites; and controlling an activation status of at least one of: a first satellite signal receive chain, of the user equipment, configured to measure the first satellite signal; or a second satellite signal receive chain, of the user equipment, configured to measure the second satellite signal.

公开(公告)号：US20230179245A1

公开(公告)日：2023-06-08

申请号：US17541621

申请日：2021-12-03

Applicant: QUALCOMM Incorporated

Inventor： Rayman Wai PON ,  Liang ZHAO ,  Pranav IYENGAR ,  Arnold Jason GUM

IPC: H04B1/18 ,  H04B7/0426 ,  H01Q1/22 ,  H01Q1/32 ,  H04B1/04

CPC classification number: H04B1/18 ,  H01Q1/2291 ,  H01Q1/3275 ,  H04B1/04 ,  H04B7/0426 ,  H04B2001/0408

Abstract: Techniques for controlling remote antenna systems. An example method of receiving radio frequency signals with a remote antenna module includes providing a first signal to a remote receiver on a conductor, receiving a control signal from the remote receiver on the conductor, wherein the control signal is a bias voltage on the conductor, and providing a second signal on the conductor in response to receiving the control signal.

公开(公告)号：US20230091514A1

公开(公告)日：2023-03-23

申请号：US17479962

申请日：2021-09-20

Applicant: QUALCOMM Incorporated

Inventor： Pranav IYENGAR ,  Liang ZHAO ,  Daniel CAROLIN ,  Rayman Wai PON ,  Angelica WONG

IPC: H04B1/04 ,  H04B1/00

Abstract: A radio-frequency signal preconditioning method includes: receiving, at a radio-frequency signal preconditioning apparatus from an antenna, a radio-frequency signal; selectively providing, at the radio-frequency signal preconditioning apparatus, any of a plurality of gains to the radio-frequency signal to produce an output signal, the plurality of gains spanning a first range; and providing, from the radio-frequency signal preconditioning apparatus, the output signal to a conversion circuit configured to convert the output signal from an analog signal at a radio frequency to a digital signal at a baseband frequency, the conversion circuit having a dynamic range spanning a second range that is smaller than the first range.

公开(公告)号：US20220291395A1

公开(公告)日：2022-09-15

申请号：US17198151

申请日：2021-03-10

Applicant: QUALCOMM Incorporated

Inventor： Pranav IYENGAR ,  Rayman Wai PON

IPC: G01S19/36 ,  G01S19/32 ,  H01Q9/42 ,  G01S19/37

Abstract: A Global Navigation Satellite System (GNSS) receiver for a portable device includes a first linear polarization antenna configured to receive a first linear polarization component of a GNSS signal; a second linear polarization antenna configurable to receive a second linear polarization component of the GNSS signal, a radio frequency signal conforming to a second wireless communication technology, or both; and a hybrid coupler that combines the first linear polarization component of the GNSS signal and the second linear polarization component of the GNSS signal to generate a circularly polarized GNSS signal. In some embodiments, the GNSS receiver includes a tuner to tune the resonant frequency of the second linear polarization antenna. In some embodiments, the GNSS receiver includes a switch or a filter to connect or disconnect the second linear polarization antenna from the hybrid coupler to implement a circular polarization antenna or a linear polarization ante.

公开(公告)号：US20220085839A1

公开(公告)日：2022-03-17

申请号：US17473334

申请日：2021-09-13

Applicant: QUALCOMM Incorporated

Inventor： Pranav IYENGAR ,  Rayman Wai PON

IPC: H04B1/10

Abstract: A mobile device may be configured to perform concurrent Satellite Positioning System and communication system operation, e.g. enabling an SPS receiver to continue to receive SPS signals in frequency bands that are interfered with due to aggressor transmission signals. A controllable filter, such as a selectable and/or tunable notch or lowpass filter is used to reject the aggressor transmission signals. The controllable filter may also attenuate some, but not all, frequencies in the SPS L1 band. To avoid losing complete access to these filtered SPS signal frequencies, the controllable filter is controlled, e.g., selected or tuned to these frequencies only when the aggressor transmission signal is active, and is otherwise turned off or tuned away from the SPS signal frequencies.