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公开(公告)号：US20190313416A1
公开(公告)日：2019-10-10
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
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.
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公开(公告)号：US20190305901A1
公开(公告)日：2019-10-03
申请号：US16107713
申请日：2018-08-21
Applicant: QUALCOMM Incorporated
Inventor： Guttorm Ringstad OPSHAUG , Sven FISCHER , Naga BHUSHAN , Stephen William EDGE , Jie WU , Rayman Wai PON
Abstract: Methods, apparatuses, and computer-readable media are described. In one example, a method, on a base station, for providing position measurements signals in a wireless communication network, comprises: determining a plurality of subcarriers for downlink transmission, wherein the plurality of subcarriers for downlink transmission comprise all subcarriers indicated in a resource block of a scheduled time of transmission within a scheduled transmission occasion, wherein the resource block comprises a plurality of symbol periods, wherein each symbol period of the plurality of symbol periods is for transmission of a symbol using one or more subcarriers of the plurality of subcarriers; and transmitting at the scheduled time of transmission, and using each subcarrier of the plurality of subcarriers, a wireless position measurement signal at the scheduled transmission occasion, the wireless position measurement signal being part of a sequence of wireless signals representing a position measurement signal bitstream.
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公开(公告)号：US20230300568A1
公开(公告)日：2023-09-21
申请号：US17698754
申请日：2022-03-18
Applicant: QUALCOMM Incorporated
Inventor： Liang ZHAO , Le Nguyen LUONG , Rayman Wai PON , Cheng-Han WANG , Bala RAMASAMY , Santosh Kumar GUPTA , Michael KOHLMANN
Abstract: Disclosed are systems and techniques for wireless communications. For example, a first user equipment (UE) can receive positioning data corresponding to a second UE. In some cases, the first UE can determine a relative position between the first UE and the second UE. In some aspects, the first UE can determine a first location estimate of the first UE based on the positioning data corresponding to the second UE and the relative position between the first UE and the second UE.
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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
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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公开(公告)号：US20210329586A1
公开(公告)日：2021-10-21
申请号：US17233387
申请日：2021-04-16
Applicant: QUALCOMM Incorporated
Inventor： Guttorm Ringstad OPSHAUG , Grant MARSHALL , Rayman Wai PON
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.
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Patent Agency Ranking
公开(公告)号：US20220417890A1
公开(公告)日：2022-12-29
申请号：US17823762
申请日：2022-08-31
Applicant: QUALCOMM Incorporated
Inventor： Guttorm Ringstad OPSHAUG , Naga BHUSHAN , Jie WU , Sven FISCHER , Stephen William EDGE , Rayman Wai PON
Abstract: Methods and systems for wireless communication are provided. In one example, a method comprises: receiving, by a mobile device, a radio beam, the radio beam being a directional beam that propagates along an angle of departure with respect to an antenna that transmits the radio beam; identifying, by the mobile device, at least one of: the radio beam or a base station that operates the antenna; determining, by the mobile device, a position of the mobile device based on identifying at least one of the radio beam or the antenna of the base station; and outputting, by the mobile device, the position of the mobile device.
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公开(公告)号：US20220381921A1
公开(公告)日：2022-12-01
申请号：US17330785
申请日：2021-05-26
Applicant: QUALCOMM Incorporated
Inventor： Rayman Wai PON , Jordan COOKMAN
Abstract: A method of measuring a satellite signal includes: receiving, at an apparatus, the satellite signal; determining, at the apparatus, a first code phase of the satellite signal, corresponding to a first time period, based on a first portion of the satellite signal that has a first bandwidth; determining, at the apparatus, a second code phase of the satellite signal, corresponding to a second time period, based on a second portion of the satellite signal that has a second bandwidth, where the second bandwidth is larger than the first bandwidth, and where the second time period is separate from the first time period; and determining, at the apparatus, a carrier phase of the satellite signal based on the first portion of the satellite signal and a third portion of the satellite signal that has the first bandwidth and spans the second time period.
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公开(公告)号：US20190319827A1
公开(公告)日：2019-10-17
申请号：US16011770
申请日：2018-06-19
Applicant: QUALCOMM Incorporated
Inventor： Guttorm Ringstad OPSHAUG , Rayman Wai PON , Jie WU , Sven FISCHER , Stephen William EDGE , Naga BHUSHAN
Abstract: A periodically-transmitted reference signal can have certain proprietary properties to help to help prevent unauthorized detection and utilization of the signal. More specifically, a base station can adjust times at which a reference signal is transmitted and/or a code with which the signal is encoded. These adjustments may be based on an equation or algorithm, which can be shared with particular mobile devices as needed.
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公开(公告)号：US20170223659A1
公开(公告)日：2017-08-03
申请号：US15488008
申请日：2017-04-14
Applicant: QUALCOMM Incorporated
Inventor： Gengsheng ZHANG , Rayman Wai PON , Ju-Yong DO
CPC classification number: H04W64/006 , G01S5/0018 , G01S5/021 , G01S5/0221 , G01S5/0236 , G01S5/10 , G01S19/46 , G06F17/509 , H04B17/318 , H04W4/023 , H04W24/08
Abstract: Techniques for determining a relative Time Calibration (dTcal) value for a mobile device model are disclosed. An example of an apparatus according to the disclosure includes a memory, a receiver configured to receive measurements and a mobile device model information from mobile devices disposed in geographic areas, a processor configured to determine a baseline mobile device model and other mobile devices models based on the measurements, calculate a baseline measurement value based on the measurement values that correspond to the baseline mobile device model, determine difference values based on the baseline measurement value and the other mobile device model measurement values, determine a model specific dTcal value based on the difference values for at least one of the other mobile device models, and store the model specific dTcal value in the memory.
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公开(公告)号：US20170195836A1
公开(公告)日：2017-07-06
申请号：US14986893
申请日：2016-01-04
Applicant: QUALCOMM Incorporated
Inventor： Gengsheng ZHANG , Rayman Wai PON , Ju-Yong DO
CPC classification number: H04W64/006 , G01S5/0018 , G01S5/021 , G01S5/0221 , G01S5/0236 , G01S5/10 , G01S19/46 , G06F17/509 , H04B17/318 , H04W4/023 , H04W24/08
Abstract: Techniques for determining a relative Time Calibration (dTcal) value for a mobile device model are disclosed. An example of an apparatus according to the disclosure includes a memory, a receiver configured to receive measurements and a mobile device model information from mobile devices disposed in geographic areas, a processor configured to determine a baseline mobile device model and other mobile devices models based on the measurements, calculate a baseline measurement value based on the measurement values that correspond to the baseline mobile device model, determine difference values based on the baseline measurement value and the other mobile device model measurement values, determine a model specific dTcal value based on the difference values for at least one of the other mobile device models, and store the model specific dTcal value in the memory.
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