-
公开(公告)号：US12207161B2
公开(公告)日：2025-01-21
申请号：US18316729
申请日：2023-05-12
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Sudhir Kumar Baghel
Abstract: Certain aspects of the present disclosure provide techniques for improving sidelink positioning via messaging between wireless nodes, e.g., roadside service units (RSUs). A method that may be performed by a user equipment (UE) includes receiving a first positioning reference signal (PRS) from a first wireless node, receiving a second PRS from a second wireless node, receiving, from the first wireless node, an estimate of a first clock error component between the first wireless node and the second wireless node, and estimating a position of the UE, based on the first PRS, the second PRS, and the estimate of the first clock error component.
-
公开(公告)号：US12133192B2
公开(公告)日：2024-10-29
申请号：US17205907
申请日：2021-03-18
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Sudhir Kumar Baghel
CPC classification number: H04W64/006 , H04L5/0051 , H04W56/009 , H04W80/02 , H04W92/18
Abstract: Systems, methods, and devices for sidelink positioning determination and communication can employ techniques including obtaining, at a first sidelink-enabled device, data from one or more data sources indicative of one or more criteria for using either round-trip time (RTT)-based positioning of a target node or single-sided (SS)-based positioning of the target node. The techniques also include selecting, with the first sidelink-enabled device, a positioning type from the group may comprise of RTT-based positioning and SS-based positioning, based on the data. The techniques also include sending a message from the first sidelink-enabled device to a second sidelink-enabled device, where the message includes information indicative of the selected positioning type.
-
公开(公告)号：US11805552B2
公开(公告)日：2023-10-31
申请号：US17670159
申请日：2022-02-11
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Junyi Li
CPC classification number: H04W74/0816 , H04L5/0051 , H04W74/0866
Abstract: The bandwidth of ranging signals used in ranging session in a distributed system are dynamically adjusted based on the accuracy of the ranging over multiple ranging sessions and optionally based on the probability of successful Listen Before Transmit (LBT) procedure over the multiple ranging sessions. The accuracy of the ranging may be determined, e.g., based on the variance of determined ranges over a number of ranging sessions, which may be compared to a threshold to indicate low accuracy ranging. The bandwidth of the ranging signals may be increased based on an indication of low accuracy ranging. If the ranging signals are broadcast on unlicensed spectrum using LBT procedures, the probability of successful LBT procedures by the initiator UE, the responder UEs, or all participating UEs may be used to determine whether bandwidth of the ranging signals should be decreased.
-
公开(公告)号：US11758357B2
公开(公告)日：2023-09-12
申请号：US17878666
申请日：2022-08-01
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Sudhir Kumar Baghel , Junyi Li
Abstract: A target user equipment (UE), which may be a vehicle or UE carried by a pedestrian, may receive sequentially broadcast ranging signals from a set of ranging source entities (SEs), which may be road side units or other vehicles. The target UE further receives location information separately broadcast by each SEs. The location information, for example, may include the position for the SE, the time of transmission of the ranging signals transmitted by the SE and/or a sequence identifier for the SE. The target UE may determine ranges to the SEs using time of arrival measurements for the ranging signals and the time of transmissions of the ranging signals or the sequence identifier received in the location information. The position of the target UE may be determined using the determined ranges to the SEs and the positions of the SEs received in the location information.
-
公开(公告)号：US11689892B2
公开(公告)日：2023-06-27
申请号：US17446802
申请日：2021-09-02
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Junyi Li , Piyush Gupta
CPC classification number: H04W4/029 , G01S5/12 , H04L5/0048 , H04W4/44
Abstract: A method that may be performed by a UE includes obtaining map information regarding, at least, one or more reflectors in an environment including at least the UE and another node, detecting at least one positioning reference signal (PRS) transmission that travels one or more non line-of-sight (NLOS) transmission paths in the environment, and participating in a positioning procedure that estimates a position of the UE based, at least in part, on the at least one PRS transmission that travels the one or more NLOS transmission paths and the map information.
-
Patent Agency Ranking
公开(公告)号：US11689890B2
公开(公告)日：2023-06-27
申请号：US17336274
申请日：2021-06-01
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Sudhir Kumar Baghel
CPC classification number: H04W4/029 , G01S5/02216 , H04L5/0048 , H04W4/40 , H04W56/001
Abstract: Certain aspects of the present disclosure provide techniques for improving sidelink positioning via messaging between wireless nodes, e.g., roadside service units (RSUs). A method that may be performed by a user equipment (UE) includes receiving a first positioning reference signal (PRS) from a first wireless node, receiving a second PRS from a second wireless node, receiving, from the first wireless node, an estimate of a first clock error component between the first wireless node and the second wireless node, and estimating a position of the UE, based on the first PRS, the second PRS, and the estimate of the first clock error component.
-
公开(公告)号：US11653225B2
公开(公告)日：2023-05-16
申请号：US17345183
申请日：2021-06-11
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Shuanshuan Wu , Kapil Gulati
CPC classification number: H04W16/28 , H04L5/0051 , H04L27/2607 , H04W4/40 , H04W24/10 , H04W74/0816
Abstract: In some implementations, a method of wireless communication includes transmitting, from an initiator of a positioning reference signal (PRS) group to other members of the PRS group, an indication of access to a wireless channel for the PRS group. The method further includes broadcasting a first PRS via each antenna beam of a plurality of antenna beams. An antenna array of the initiator is configured to communicate via the plurality of antenna beams. Other aspects and features are also claimed and described.
-
公开(公告)号：US11617160B2
公开(公告)日：2023-03-28
申请号：US17090449
申请日：2020-11-05
Applicant: QUALCOMM Incorporated
Inventor： Sudhir Kumar Baghel , Tien Viet Nguyen , Kapil Gulati , Gabi Sarkis , Shuanshuan Wu , Chang-Sik Choi , Anantharaman Balasubramanian
Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to the categorization of resources in a system to enable a user equipment (UE) to determine whether resources may be reclaimed. At least two categories may be defined for the resources, and the UE may use various criteria for categorizing the resources in a system. For example, the UE may include a first set of resources in an “available” category and a second set of resources in an “occupied” category. Resources in the “occupied” category may be indicated as occupied by another UE's sidelink channel information. In cases where resources are indicated as reserved for retransmission by another UE, but no feedback is detected, then the UE may use additional parameters to determine whether those resources may be reclaimed for its own transmission and may categorize the resources accordingly.
-
公开(公告)号：US11432109B2
公开(公告)日：2022-08-30
申请号：US16698295
申请日：2019-11-27
Applicant: QUALCOMM Incorporated
Inventor： Chang-Sik Choi , Kapil Gulati , Sudhir Kumar Baghel , Junyi Li
Abstract: A target user equipment (UE), which may be a vehicle or UE carried by a pedestrian, may receive sequentially broadcast ranging signals from a set of ranging source entities (SEs), which may be road side units or other vehicles. The target UE further receives location information separately broadcast by each SEs. The location information, for example, may include the position for the SE, the time of transmission of the ranging signals transmitted by the SE and/or a sequence identifier for the SE. The target UE may determine ranges to the SEs using time of arrival measurements for the ranging signals and the time of transmissions of the ranging signals or the sequence identifier received in the location information. The position of the target UE may be determined using the determined ranges to the SEs and the positions of the SEs received in the location information.
-
公开(公告)号：US20220070883A1
公开(公告)日：2022-03-03
申请号：US17446126
申请日：2021-08-26
Applicant: QUALCOMM INCORPORATED
Inventor： Chang-Sik Choi , Shuanshuan Wu , Kapil Gulati
Abstract: Methods, systems, and devices for wireless communications are described. A device may receive a directional positioning reference signal over one or more beams from another device. The device may transmit a broadcast positioning reference signal in response to receipt of the directional positioning reference signal. The device may receive, from the other device, a report including timing and directionality associated with transmission of the directional positioning reference signal. The report may also include timing and directionality associated with receipt of the broadcast positioning reference signal at the other device. Responsive to receipt of the report, the device may transmit beam specific measurement information associated with the one or more beams to the other device. The device may communicate with the other device using a beam of the one or more beams based at least on the report and the beam specific measurement information.
-
-
-
-
-
-
-
-
-
Search Results
70
records
(took 0.022 seconds)
