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公开(公告)号：US20210352440A1
公开(公告)日：2021-11-11
申请号：US17236896
申请日：2021-04-21
Applicant: QUALCOMM Incorporated
Inventor： Jordan COOKMAN , Liang ZHAO , Angelica WONG , Krishnaranjan RAO , Chang ROW
Abstract: A mobile device may be configured to perform concurrent Satellite Positioning System (SPS) operation and wireless communications when uplink signals transmitted by the mobile device interferes with the reception of SPS signals in one or more frequency bands. The mobile device may determine if the SPS receiver has already acquired SPS signals and is in a tracking state. If the SPS receiver is not in a tracking state, an SPS acquisition procedure is initiated before the wireless communication session is initiated. The SPS acquisition procedure is performed until the SPS receiver reaches a tracking state, or until a timeout is reached. Once the SPS receiver is in a tracking state, the wireless communication session may be initiated, during which the SPS receiver is controlled, e.g., to perform signal blanking, measurement exclusion, or disable SPS reception, to mitigate interference with SPS signals.
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公开(公告)号：US20210132236A1
公开(公告)日：2021-05-06
申请号：US17081973
申请日：2020-10-27
Applicant: QUALCOMM Incorporated
Inventor： Jordan COOKMAN , Krishnaranjan RAO , Sandeep PADMANABHAN
Abstract: Described herein are systems and techniques for mitigating the impact of attenuated satellite signals received at mobile devices. A mobile device receives multiple signals from a single satellite on different carrier frequencies. The mobile device calculates two pseudorange measurements, each pseudorange measurement from a different signal of the multiple signals. The mobile device calculates the difference between the two pseudorange measurements, and if the difference exceeds a first threshold and the first pseudorange measurement is larger than the second pseudorange measurement, the mobile device marks the first pseudorange measurement as impaired. If the difference exceeds a second threshold and the second pseudorange measurement is larger than the first pseudorange measurement, the second pseudorange measurement is marked as impaired. The impaired measurements may be weighted or excluded from use in calculating a position of the mobile device or in another pseudorange measurement based calculation.
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公开(公告)号：US20200096647A1
公开(公告)日：2020-03-26
申请号：US16142094
申请日：2018-09-26
Applicant: QUALCOMM Incorporated
Inventor： Jordan COOKMAN , Jie WU , Rayman PON , Guttorm Ringstad OPSHAUG , Gengsheng ZHANG
IPC: G01S19/25 , H04W4/024 , H04B1/7087 , G01S19/30 , G01S19/24
Abstract: A method of processing a satellite signal includes: receiving a satellite positioning system (SPS) signal, including an SPS data signal of unknown data content, from a satellite at a wireless communication device; receiving symbol indications, of determined symbol values, from a terrestrial wireless communication system at the wireless communication device; correlating the SPS data signal with a pseudo-random noise code to obtain first correlation results; and using the symbol indications and the first correlation results to determine a measurement of the SPS signal.
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公开(公告)号：US20250116783A1
公开(公告)日：2025-04-10
申请号：US18989253
申请日：2024-12-20
Applicant: QUALCOMM Incorporated
Inventor： Jordan COOKMAN , Krishnaranjan RAO , Jeffrey WONG , Shikha JAIN
Abstract: A jamming signal detection control method includes: receiving, at a satellite positioning signal receiver, one or more satellite positioning signals; determining, at the satellite positioning signal receiver, one or more quality metric values based on the one or more satellite positioning signals; determining, at the satellite positioning signal receiver, whether the one or more quality metric values are indicative of jamming; and activating, at the satellite positioning signal receiver and in response to the one or more quality metric values being indicative of jamming, a jammer detection technique to determine whether a jamming signal is received by the satellite positioning signal receiver.
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公开(公告)号：US20240061128A1
公开(公告)日：2024-02-22
申请号：US17821084
申请日：2022-08-19
Applicant: QUALCOMM Incorporated
Inventor： Pulkit RAJGADIYA , Fnu SIDDHANT , Jordan COOKMAN , Mukesh KUMAR
CPC classification number: G01S19/07 , G01S19/243 , G01S19/254 , G01S19/256
Abstract: Systems and techniques are provided for performing Quasi-Zenith Satellite System (QZSS) signal acquisition. For example, an example of a method for performing QZSS signal acquisition includes obtaining a modulated message signal using a frequency band and generating, based on an estimated set of signal acquisition parameters associated with an acquired signal, an energy grid of correlation codes. A series of extracted data bytes can be generated for each respective hypothesis of a plurality of hypotheses, based on a location of a peak energy within the energy grid of correlation codes. A correct hypothesis out of the plurality of hypotheses can be determined, wherein the correct hypothesis is associated with a generated series of extracted data bytes that includes a pre-determined header preamble pattern. The modulated message signal can be decoded using an initial code phase associated with the correct hypothesis.
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Patent Agency Ranking
公开(公告)号：US20230022979A1
公开(公告)日：2023-01-26
申请号：US17937407
申请日：2022-09-30
Applicant: QUALCOMM Incorporated
Inventor： Jordan COOKMAN , Liang ZHAO , Angelica WONG , Krishnaranjan RAO , Chang ROW
Abstract: A mobile device may be configured to perform concurrent Satellite Positioning System (SPS) operation and wireless communications when uplink signals transmitted by the mobile device interferes with the reception of SPS signals in one or more frequency bands. The mobile device may determine if the SPS receiver has already acquired SPS signals and is in a tracking state. If the SPS receiver is not in a tracking state, an SPS acquisition procedure is initiated before the wireless communication session is initiated. The SPS acquisition procedure is performed until the SPS receiver reaches a tracking state, or until a timeout is reached. Once the SPS receiver is in a tracking state, the wireless communication session may be initiated, during which the SPS receiver is controlled, e.g., to perform signal blanking, measurement exclusion, or disable SPS reception, to mitigate interference with SPS signals.
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17.发明申请公开(公告)号：US20220244402A1
公开(公告)日：2022-08-04
申请号：US17167952
申请日：2021-02-04
Applicant: QUALCOMM Incorporated
Inventor： Rayman Wai PON , Jordan COOKMAN , Gengsheng ZHANG
IPC: G01S19/25 , H04B1/3827
Abstract: A mobile device may be configured to improve measurement of carrier phase (CP) in received satellite signals for satellite positioning system (SPS) operations. For example, this may enable an SPS receiver to measure CP of at least a first positioning signal and a second positioning signal each received from the same satellite vehicle. A corrected CP of the first positioning signal may be estimated based on the measured CP of the first positioning signal and on the measured CP of the second positioning signal.
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公开(公告)号：US20210240217A1
公开(公告)日：2021-08-05
申请号：US16781976
申请日：2020-02-04
Applicant: QUALCOMM Incorporated
Inventor： Robert Dale THRASHER , Jordan COOKMAN , Duong HOANG
Abstract: Techniques described herein address these and other issues by utilizing two or more sensors to take temperature measurements from which a temperature-differential or instantaneous temperature rate-of-change, can be determined. In turn, this can be used to make a highly accurate model of the relationship between the temperature, temperature-differential, and clock circuitry frequency, to accurately estimate the frequency rate-of-change for frequency correction/compensation.
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公开(公告)号：US20210157014A1
公开(公告)日：2021-05-27
申请号：US17102905
申请日：2020-11-24
Applicant: QUALCOMM Incorporated
Inventor： Jordan COOKMAN , Krishnaranjan RAO
Abstract: Disclosed herein are techniques for managing concurrent reception of satellite position signals and transmission of wireless network signals. In some embodiments, a measurement engine is configured to generate measurements based on Global Navigation Satellite System (GNSS) signals received by a GNSS wireless receiver, including a first measurement based on a first GNSS signal. A determination is made as to whether a wireless transmitter is active in a first frequency band when the GNSS wireless receiver receives the first GNSS signal, where the first frequency band is a frequency band of the first GNSS signal. In response to a determination that the wireless transmitter is active in the first frequency band when the GNSS wireless receiver receives the first GNSS signal, a position calculation operation and/or a clock bias calculation operation can be performed using measurements other than the first measurement.
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公开(公告)号：US20240313818A1
公开(公告)日：2024-09-19
申请号：US18185078
申请日：2023-03-16
Applicant: QUALCOMM Incorporated
Inventor： Liang ZHAO , Hong Sun KIM , Angelica WONG , Jordan COOKMAN , Jean-Pierre RAFFEGEAU
CPC classification number: H04B1/40 , H03M1/0836 , H04W64/003
Abstract: A positioning signal processing method includes: receiving, wirelessly at an apparatus, a first positioning signal in a first frequency range; receiving, wirelessly at the apparatus, a second positioning signal in a second frequency range; converting the first positioning signal by a first analog-to-digital converter (ADC) of the apparatus to produce a first digital signal at a first sampling rate that is based on a clock signal; and converting the second positioning signal by a second ADC of the apparatus to produce a second digital signal at a second sampling rate that is based on the clock signal and that is different from, and related to, the first sampling rate.
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