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公开(公告)号：US20240337759A1
公开(公告)日：2024-10-10
申请号：US18682083
申请日：2022-09-02
Applicant: QUALCOMM Incorporated
CPC classification number: G01S19/41 , G01S19/071
Abstract: A terminal position is determined with differential Global Navigation Satellite System (DGNSS) using GNSS signals from a plurality of satellite vehicles and differential corrections generated by a reference station for the GNSS signals and broadcast via a DGNSS server. The use of the differential corrections for positioning is interrupted when the determined terminal position does not improve with use of the differential corrections. The differential corrections may be interrupted for a period of time so that the terminal no longer receives the broadcast of the differential corrections or so that the differential corrections are not used for position estimation in order to reduce power consumption and reduce processing operations. The DGNSS capabilities of the terminal, such as the supported GNSS constellations and/or frequency bands, may be used by the DGNSS server to select differential corrections to broadcast to the terminal.
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公开(公告)号：US20240393470A1
公开(公告)日：2024-11-28
申请号：US18322435
申请日：2023-05-23
Applicant: QUALCOMM Incorporated
Inventor： Chandrasekhar JAYARAM , Bo ZHENG , Simran Deepak MAKARIYE
IPC: G01S19/08 , G01S19/07 , H04W64/00 , H04W72/0453
Abstract: Techniques and apparatus for satellite-based determination of a position of a mobile device are disclosed. In some embodiments, such techniques include: obtaining a plurality of first satellite measurements in a first frequency, and a plurality of second satellite measurements in a second frequency; using at least qualified or consistent satellite measurements to determine the position of the mobile device, sending at least the qualified or consistent satellite measurements to a network device, or disabling usage of first satellite measurements in the first frequency or second satellite measurements in the second frequency.
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公开(公告)号：US20240345264A1
公开(公告)日：2024-10-17
申请号：US18300568
申请日：2023-04-14
Applicant: QUALCOMM Incorporated
Inventor： Chandrasekhar JAYARAM , Santoshkumar ZALAKE , Mukesh KUMAR , Srinivas GANGJI
Abstract: A position information provision method includes: determining, at a UE, first estimated locations of a first plurality of satellite vehicles based on first satellite vehicle position information that has exceeded a first expiration time of the first satellite vehicle position information; determining, at the UE, a first position estimate based on the first estimated locations of the first plurality of satellite vehicles, and first measurements of first satellite vehicle signals received by the UE; and transmitting, from the UE to a network entity, the first position estimate, a first indication of the first plurality of satellite vehicles from which signals were used to determine the first position estimate, a second indication of the first satellite vehicle position information used to determine the first position estimate, and a third indication of a first time corresponding to the first position estimate.
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公开(公告)号：US20230035711A1
公开(公告)日：2023-02-02
申请号：US17390923
申请日：2021-07-31
Applicant: QUALCOMM Incorporated
Inventor： Bo ZHENG , Chandrasekhar JAYARAM , Gengsheng ZHANG , Yinghua YANG , Subrahmanyam Anand MANTRAVADI VENKATA
IPC: H04W4/029
Abstract: A method includes: receiving one or more positioning signals; determining that a UE is line-of-sight to fewer than a threshold number of positioning signal sources; determining a first position estimate hypothesis for the UE using a first position estimating process and one or more first measurements of the positioning signal(s); determining a second position estimate hypothesis for the UE using a second position estimating process and one or more second measurements of the positioning signal(s), wherein the second position estimating process uses a second parameter value of a parameter and the parameter is absent from the first position estimating process or has a first parameter value that is different from the second parameter value; and reporting a reported position estimate based on the first position estimate hypothesis or the second position estimate hypothesis in response to the UE being line-of-sight to fewer than the threshold number of positioning signal sources.
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Patent Agency Ranking
公开(公告)号：US20250106877A1
公开(公告)日：2025-03-27
申请号：US18476100
申请日：2023-09-27
Applicant: QUALCOMM Incorporated
Inventor： Mukesh KUMAR , Chandrasekhar JAYARAM , Srinivas GANGJI , Santoshkumar ZALAKE
IPC: H04W72/40
Abstract: Apparatus, methods, and computer program products for determining a time are provided. An example method may include receiving, in a global navigation satellite system (GNSS) denied environment, a plurality of sidelink messages from a plurality of sources. The example method may further include selecting a time source from the plurality of sources based on the plurality of sidelink messages and based on at least one of: a respective distance traveled within the GNSS denied environment associated with each source of the plurality of sources or a respective time inside the GNSS denied environment of the plurality of sources. The example method may further include performing, based on a time provided by the time source, at least one of a positioning activity, a timing maintenance activity, or a communication activity.
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公开(公告)号：US20240094414A1
公开(公告)日：2024-03-21
申请号：US17947099
申请日：2022-09-17
Applicant: QUALCOMM Incorporated
Inventor： Min WANG , Chandrasekhar JAYARAM , Satya Swaroop YADATI
IPC: G01S19/44
CPC classification number: G01S19/44
Abstract: An integer ambiguity resolution method includes: receiving SPS signals; determining, for the SPS signals, candidate float ambiguity values indicative of float numbers of carrier signal wavelengths of the SPS signals between respective satellite sources, of the SPS signals, and the mobile device; and performing, in response to failure of an integer ambiguity resolution validation check based on at least a first subset of the candidate float ambiguity values, an integer ambiguity search using at least a second subset of the candidate float ambiguity values; wherein each candidate float ambiguity value of the at least second subset of the candidate float ambiguity values corresponds to a second indication of candidate float ambiguity accuracy that is higher than a first indication of candidate float ambiguity accuracy, if any, corresponding to the at least first subset of the candidate float ambiguity values.
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公开(公告)号：US20240248216A1
公开(公告)日：2024-07-25
申请号：US18157760
申请日：2023-01-20
Applicant: QUALCOMM Incorporated
Inventor： Mukesh KUMAR , Chandrasekhar JAYARAM , Srinivas GANGJI , Santoshkumar ZALAKE
Abstract: A first user equipment (UE) may receive a first set of beacon signals from a set of global navigation satellite system (GNSS) devices. The first UE may restrict growth of a position uncertainty (PUNC) value associated with the first UE based on a maximum vehicle speed and based on a lack of a reception of a beacon signal from the set of GNSS devices within a threshold period of time. The first UE may restrict growth of the PUNC value further based on a relative velocity profile associated with the first UE. The first UE may receive a message including a second relative velocity profile from a second UE. The first UE may calculate the relative velocity profile based on the second relative velocity profile.
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8.发明公开公开(公告)号：US20240183992A1
公开(公告)日：2024-06-06
申请号：US18061790
申请日：2022-12-05
Applicant: QUALCOMM Incorporated
Inventor： Chandrasekhar JAYARAM , Santoshkumar ZALAKE , Mukesh KUMAR , Srinivas GANGJI
Abstract: Aspects presented herein may enable a network entity to determine whether there are any errors in the broadcast data from one or more space vehicles (SVs) based on crowd-sourcing information from a set of road side units (RSUs). In one aspect, a network entity obtains at least one measurement for a satellite associated with a set of RSUs. The network entity estimates a position of the satellite based on the at least one measurement and locations of the set of RSUs. The network entity identifies whether the estimated position of the satellite is associated with an error based on a comparison of the estimated position of the satellite with ephemeris data or almanac data of the satellite.
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公开(公告)号：US20230085174A1
公开(公告)日：2023-03-16
申请号：US17801341
申请日：2021-02-26
Applicant: QUALCOMM Incorporated
Inventor： Chandrasekhar JAYARAM , Devyesh TANDON , Santoshkumar ZALAKE , Srinivas GANGJI
Abstract: A UE includes: a memory; a receiver configured to receive wireless signals; and a processor communicatively coupled to the memory and the receiver and configured to: receive, via the receiver, one or more indications corresponding to one or more failures of a first positioning signal source; disable a first positioning-signal-processing function of the UE for the first positioning signal source based on the one or more indications; and perform a second positioning-signal-processing function of the UE using a positioning signal from the first positioning signal source while the first positioning-signal-processing function of the UE is disabled.
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