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公开(公告)号：US12133261B2
公开(公告)日：2024-10-29
申请号：US17211598
申请日：2021-03-24
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Junyi Li
IPC: H04W24/10 , H04W74/00 , H04W74/0808
CPC classification number: H04W74/0825 , H04W24/10 , H04W74/008
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may implement one or more listen before talk (LBT) techniques. The wireless device may identify a set of transmission parameters of a signal for transmission from the wireless device. The wireless device may generate a first transmission waveform of the signal on a set of radio resources based on the set of transmission parameters. The wireless device may perform a LBT based at least in part on the generation of the first transmission waveform. In some cases, performing the LBT includes adjusting a detected signal associated with the set of radio resources based at least in part on the first transmission waveform. The wireless device may transmit the signal based on a result of the LBT.
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公开(公告)号：US12117537B2
公开(公告)日：2024-10-15
申请号：US17793524
申请日：2020-02-07
Applicant: QUALCOMM Incorporated
Inventor： Jun Ma , Xiao Feng Wang , Qiang Wu , Huilin Xu , Dan Zhang , Iyab Issam Sakhnini , Yiqing Cao
CPC classification number: G01S19/256 , G01S5/10 , H04W64/00 , H04W84/06
Abstract: Satellites in a non-terrestrial network may provide positioning reference signals (PRS) to user equipment (UE), with which the UE may determine its position using propagation delay difference measurements, such as Time Difference of Arrival (TDOA) measurement. Due to the large distances between satellites and the UE, the propagation delay differences in the PRS received from satellites may exceed half a radio frame, resulting in a frame level timing ambiguity in the differential measurements. The satellites transmit secondary PRS, along with primary PRS, that include timing information to resolve frame level timing ambiguity of the primary PRS. The positioning occasions in the secondary PRS, for example, may be aligned with corresponding positioning occasions primary PRS within each radio frame, and are transmitted with a periodicity that is an integer multiple (greater than 1) of that of the primary PRS to resolve the frame level timing ambiguity of the primary PRS.
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公开(公告)号：US11828863B2
公开(公告)日：2023-11-28
申请号：US17198035
申请日：2021-03-10
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Junyi Li , Preeti Kumari
CPC classification number: G01S5/02216 , G01S13/08 , G01S13/58 , G01S19/10 , G01S13/72
Abstract: A configuration to determine a timing offset between a first wireless device and a second wireless device in order to synchronize timing between the first wireless device and the second wireless device. The apparatus determines a timing offset between a first wireless device and a second wireless device based on at least one transmission received from the second wireless device. The apparatus determines a location of a target device based at least on the at least one transmission from the second wireless device and the timing offset between the first wireless device and the second wireless device.
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公开(公告)号：US11822003B2
公开(公告)日：2023-11-21
申请号：US17189066
申请日：2021-03-01
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Ahmed Bedewy , Kapil Gulati , Junyi Li
IPC: G01S7/02 , G01S7/00 , G01S13/931
CPC classification number: G01S7/023 , G01S7/003 , G01S7/021 , G01S13/931 , G01S2013/9316
Abstract: Systems and methods for adjusting radar transmission parameters based on congestion level measurements are disclosed. In some aspects, a congestion level of radar signals at a location in a vicinity of a radar source may be measured or otherwise determined. In some aspects, a transmission parameter of radar signals configured for transmission to the location by the radar source may be adjusted based on the congestion levels.
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公开(公告)号：US11815615B2
公开(公告)日：2023-11-14
申请号：US17202177
申请日：2021-03-15
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Junyi Li
CPC classification number: G01S5/02529 , G01S5/0284 , G01S7/42 , H04W24/10 , H04W76/14 , H04W76/15
Abstract: Methods, systems, and devices for cooperative radar sensing in wireless communications are described. A user equipment (UE) may measure one or more radar measurement parameters associated with a radar target, the radar measurement parameters including a set of values and a first time stamp corresponding to the measurement. The UE may receive a report, from a second UE, including a second set of values for the one or more radar measurement parameters associated with the radar target, an identifier associated with the second UE, and a second time stamp corresponding to the second set of values. The UE may generate a combined set of values based on the measured set of values, the second set of values, and the first and second time stamps. The UE may transmit a report to one or more other UEs including the combined set of values.
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Patent Agency Ranking
公开(公告)号：US11696189B2
公开(公告)日：2023-07-04
申请号：US17134884
申请日：2020-12-28
Applicant: QUALCOMM Incorporated
Inventor： Huilin Xu , Qiang Wu , Jun Ma , Xiao Feng Wang , Iyab Issam Sakhnini , Dan Zhang , Liangping Ma
CPC classification number: H04W36/0016 , H04B7/18508 , H04B7/18541 , H04W36/0058 , H04W36/0072 , H04W60/04
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communication via a non-terrestrial network (NTN). In one aspect, a method for wireless communication includes initiating, by a user equipment (UE), a registration process with a network entity of an NTN to access the NTN. The method further includes transmitting, by the UE to the network entity, UE capability information of the UE. Other aspects and features are also claimed and described.
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公开(公告)号：US11630196B2
公开(公告)日：2023-04-18
申请号：US17216191
申请日：2021-03-29
Applicant: QUALCOMM Incorporated
Inventor： Junyi Li , Dan Zhang , Kapil Gulati
Abstract: False alarms in RADAR processing are reduced. One or more transforms may be performed to generate an array of spectrum values for a first domain spanning at least one of a range axis, a direction of arrival (DoA) axis, or a velocity axis. One or more spectrum values may be obtained from the array of spectrum values, wherein for each of the one or more spectrum values, (1) the spectrum value is associated with a range estimate, and (2) the spectrum value exceeds a range-dependent maximum threshold established based on a quartic function of the range estimate. The one or more spectrum values identified as exceeding the range-dependent maximum threshold may be excluded, or one or more reduced-magnitude values obtained, to generate an array of modified spectrum values for the first domain, used to generate a range estimate, a DoA estimate, or a velocity estimate, or any combination thereof.
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公开(公告)号：US20220308159A1
公开(公告)日：2022-09-29
申请号：US17210161
申请日：2021-03-23
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Gene Wesley Marsh , Preeti Kumari , Junyi Li
IPC: G01S7/02 , G01S7/00 , G01S13/931
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE), such as a vehicle UE may determine, based on one or more communication parameters of the UE, a radar field of view (FOV) for radar communications at the UE relative to a fixed frame of reference for the wireless communications system. The UE may determine a set of radar transmission parameters based on the radar FOV, where each radar transmission parameter of the set of radar transmission parameters is a function of the radar FOV. The UE may transmit a radar message using the set of radar transmission parameters according to the radar FOV relative to the fixed frame of reference.
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公开(公告)号：US20210337598A1
公开(公告)日：2021-10-28
申请号：US17240708
申请日：2021-04-26
Applicant: QUALCOMM Incorporated
Inventor： Jun Ma , Qiang Wu , Dan Zhang , Alberto Rico Alvarino , Xiao Feng Wang , Liangping Ma , Peter Gaal , Iyab Issam Sakhnini
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may account for propagation delay when initiating a random access (RACH) procedure. For example, the UE may determine transmission timing for a RACH preamble based on an estimated propagation delay, such that the RACH preamble is received at a base station approximately at the beginning of a slot. To support reliable communication of the RACH preamble, the UE may implement a timing offset. In some examples, the base station may configure the UE with the timing offset using system information. Alternatively, the UE may be pre-configured with the timing offset. By determining the transmission timing for the RACH preamble further based on the timing offset, the UE may ensure that the RACH preamble is received at the base station after a slot boundary (e.g., avoiding causing interference to communications in a previous slot).
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公开(公告)号：US20210315014A1
公开(公告)日：2021-10-07
申请号：US17211598
申请日：2021-03-24
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may implement one or more listen before talk (LBT) techniques. The wireless device may identify a set of transmission parameters of a signal for transmission from the wireless device. The wireless device may generate a first transmission waveform of the signal on a set of radio resources based on the set of transmission parameters. The wireless device may perform a LBT based at least in part on the generation of the first transmission waveform. In some cases, performing the LBT includes adjusting a detected signal associated with the set of radio resources based at least in part on the first transmission waveform. The wireless device may transmit the signal based on a result of the LBT.
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