公开(公告)号：US20230176229A1

公开(公告)日：2023-06-08

申请号：US18161663

申请日：2023-01-30

Applicant: QUALCOMM Incorporated

Inventor： Jie WU ,  Robert Dale THRASHER ,  Jeffrey WONG ,  Krishnaranjan RAO

IPC: G01S19/19 ,  G01S19/34 ,  G01S19/42 ,  G01S19/46 ,  G01S19/47

CPC classification number: G01S19/19 ,  G01S19/34 ,  G01S19/42 ,  G01S19/46 ,  G01S19/47 ,  A63B2244/20

Abstract: A method of triggering an action includes: determining that a mobile device is under water by: determining that an amplitude of a satellite positioning system (SPS) signal, or a wireless communication signal, or a combination thereof, received by the mobile device is below a threshold amplitude; or comparing data from a motion sensor of the mobile device with motion sensor data characteristic of entering water; or a combination thereof; determining that the mobile device has an action-inducing relationship to water; and taking the action in response to determining that the mobile device has the action-inducing relationship to water.

公开(公告)号：US20220272014A1

公开(公告)日：2022-08-25

申请号：US17741247

申请日：2022-05-10

Applicant: QUALCOMM Incorporated

Inventor： Naga BHUSHAN ,  Rayman Wai PON ,  Stephen William EDGE ,  Sven FISCHER ,  Guttorm Ringstad OPSHAUG ,  Jie WU

IPC: H04L43/0864 ,  H04W24/10 ,  H04W72/04 ,  H04W16/14 ,  H04B17/364 ,  H04W64/00 ,  H04W56/00 ,  H04L1/16

Abstract: Disclosed are techniques for determining round-trip times (RTTs) between a user equipment (UE) and multiple base stations. In an aspect, the UE transmits an RTT measurement signal whose arrival time is measured by each of the base stations, and each of the base stations returns an RTT response signal whose arrival times are measured by the UE. In another aspect, the base stations each transmit an RTT measurement signal and the UE returns an RTT response signal. The receiver of the RTT measurement signal may include the measured arrival time in a payload of the RTT Response signal. Alternatively, the measured arrival time(s) of the RTT Measurement signal(s) and the transmission time(s) of the RTT Response signal(s) are sent in a separate message. The RTT signals can be wideband signals using low reuse resources.

公开(公告)号：US20210022155A1

公开(公告)日：2021-01-21

申请号：US17030971

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Jie WU ,  Chun-Hao HSU ,  Liang ZHAO ,  Parvathanathan SUBRAHMANYA ,  Amit MAHAJAN ,  Nitin PANT ,  Vieri VANGHI

IPC: H04W72/12 ,  H04W52/02 ,  H04W72/02 ,  H04W72/10 ,  H04W52/24 ,  G01S19/21 ,  H04B1/3805 ,  G01S19/14 ,  H04W64/00 ,  H04W72/14

Abstract: Methods, systems, computer-readable media, and apparatuses for to managing use of a satellite positions system (SPS) receiver in conjunction with one or more radio access technology (RAT) transmitters. In certain embodiments, a controller can be used to prioritize reception by the SPS receiver over transmission by the one or more RAT transmitters.

公开(公告)号：US20190312689A1

公开(公告)日：2019-10-10

申请号：US16053112

申请日：2018-08-02

Applicant: QUALCOMM Incorporated

Inventor： Guttorm Ringstad OPSHAUG ,  Stephen William EDGE ,  Sven FISCHER ,  Naga BHUSHAN ,  Rayman Wai PON ,  Jie WU

IPC: H04L5/00 ,  H04W72/04

Abstract: Many mobile devices and mobile networks utilize orthogonal frequency division multiplexing (OFDM) to calculate position information of mobile devices within the network. However, the Doppler Effect and other noise or obstructions can cause OFDM signals to become entangled, particularly when the mobile device is moving, making the calculated position information inaccurate. Described herein are systems and methods for disentangling the OFDM signals by calculating a symbol length for the signals that is longer than the minimum symbol length, which is used in traditional OFDM. Selecting a longer symbol length reduces the Doppler Effect and other noise on the signals, making positioning calculations more accurate.

公开(公告)号：US20190261368A1

公开(公告)日：2019-08-22

申请号：US16011767

申请日：2018-06-19

Applicant: QUALCOMM Incorporated

Inventor： Guttorm Ringstad OPSHAUG ,  Stephen William EDGE ,  Jie WU ,  Rayman Wai PON ,  Naga BHUSHAN ,  Sven FISCHER

IPC: H04W72/04 ,  H04W64/00

Abstract: A reference signal may provide for enhanced bandwidth utilization to enable highly accurate position determination with relatively low bandwidth. For a given allocated bandwidth, a reference signal may use of only a portion of the allocated bandwidth by using plurality of sub-bands. In some cases, the sub-bands may be near the edges of the allocated band to maximize Gabor bandwidth.

公开(公告)号：US20180160381A1

公开(公告)日：2018-06-07

申请号：US15881685

申请日：2018-01-26

Applicant: QUALCOMM Incorporated

Inventor： Jie WU ,  Daniel Fred FILIPOVIC ,  Emilija Milorad SIMIC ,  Vishal AGARWAL

IPC: H04W56/00 ,  G01S19/23 ,  H03L1/02

CPC classification number: H04W56/00 ,  G01S19/235 ,  H03L1/022

Abstract: System and method for temperature-calibration of a crystal oscillator (XO) in a mobile device. A temperature-calibration status of the XO is determined and a trigger condition related to temperature-calibration of the XO is detected. If the temperature-calibration status of the XO is not fully temperature-calibrated or if the XO has not been previously temperature-calibrated, a temperature-calibration session is initiated by an XO manager based on the condition, wherein a receiver is configured to receive signals and temperature-calibration of the XO is performed in a background mode based on the received signals. The condition based triggering ensures that the XO is temperature-calibrated prior to launch of any position based or global navigation satellite systems (GNSS) based applications on the mobile device. The trigger condition can include first use or power-on, charging, presence in an outdoor environment, variation in operating temperature, pre-specified time, and/or user input pertaining to the mobile device.

公开(公告)号：US20220201508A1

公开(公告)日：2022-06-23

申请号：US17689639

申请日：2022-03-08

Applicant: QUALCOMM Incorporated

Inventor： Jordan COOKMAN ,  Jie WU ,  David Loweth WINSLOW ,  Daniel FILIPOVIC ,  Liang ZHAO

IPC: H04W24/02 ,  H04W4/029

Abstract: A wireless communication system includes: a first sub-system including a first radio and a second radio, each including a transceiver or a receiver; and a second sub-system coupled to the first sub-system and including: a first antenna configured to convey signals; a first tuner coupled to the first antenna; and a controller coupled to the first tuner, the controller being configured to cause the first tuner to adjust a characteristic of the first tuner; where the controller and/or the first tuner is configured to provide, to the first sub-system, an indication of an effect on operational performance of a portion of the second sub-system coupled to the second radio based on operation of the first tuner or the first antenna, or a combination thereof; where the first sub-system is configured to modify operation of the second radio based on the indication of the effect on operational performance.

公开(公告)号：US20220099844A1

公开(公告)日：2022-03-31

申请号：US17643733

申请日：2021-12-10

Applicant: QUALCOMM Incorporated

Inventor： Marc Anthony ISCHE ,  Ahmad HATAMI ,  Ardalan HESHMATI ,  Zoltan BIACS ,  Douglas ROWITCH ,  Dominic Gerard FARMER ,  Srigouri KAMARSU ,  Jie WU

IPC: G01S19/46 ,  G01S19/48 ,  G01S19/07

Abstract: The subject matter disclosed herein relates to determining a background location of a mobile device using one or more signal metrics.

公开(公告)号：US20210014802A1

公开(公告)日：2021-01-14

申请号：US16938750

申请日：2020-07-24

Applicant: QUALCOMM Incorporated

Inventor： Jie WU ,  Daniel Fred FILIPOVIC ,  Emilija Milorad SIMIC ,  Vishal AGARWAL

IPC: H04W56/00 ,  G01S19/23 ,  H03L1/02

Abstract: System and method for temperature-calibration of a crystal oscillator (XO) in a mobile device. A temperature-calibration status of the XO is determined and a trigger condition related to temperature-calibration of the XO is detected. If the temperature-calibration status of the XO is not fully temperature-calibrated or if the XO has not been previously temperature-calibrated, a temperature-calibration session is initiated by an XO manager based on the condition, wherein a receiver is configured to receive signals and temperature-calibration of the XO is performed in a background mode based on the received signals. The condition based triggering ensures that the XO is temperature-calibrated prior to launch of any position based or global navigation satellite systems (GNSS) based applications on the mobile device. The trigger condition can include first use or power-on, charging, presence in an outdoor environment, variation in operating temperature, pre-specified time, and/or user input pertaining to the mobile device.

公开(公告)号：US20200100121A1

公开(公告)日：2020-03-26

申请号：US16139128

申请日：2018-09-24

Applicant: QUALCOMM Incorporated

Inventor： Jordan COOKMAN ,  Jie WU ,  David Loweth WINSLOW ,  Daniel FILIPOVIC ,  Liang ZHAO

IPC: H04W24/02 ,  H04W4/029

Abstract: A wireless communication system includes: a first sub-system including a first radio and a second radio, each including a transceiver or a receiver; and a second sub-system coupled to the first sub-system and including: a first antenna configured to convey signals; a first tuner coupled to the first antenna; and a controller coupled to the first tuner, the controller being configured to cause the first tuner to adjust a characteristic of the first tuner; where the controller and/or the first tuner is configured to provide, to the first sub-system, an indication of an effect on operational performance of a portion of the second sub-system coupled to the second radio based on operation of the first tuner or the first antenna, or a combination thereof; where the first sub-system is configured to modify operation of the second radio based on the indication of the effect on operational performance.