公开(公告)号：US11451327B2

公开(公告)日：2022-09-20

申请号：US16949462

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Dan Zhang ,  Junyi Li

IPC: H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a radar enabled device may perform a plurality of listen before talk (LBT) procedures corresponding to a plurality of chirp lengths. The radar enabled device may transmit a particular signal (e.g., a radar signal) based at least in part on a successful result of an LBT procedure of the plurality of LBT procedures. Numerous other aspects are provided.

公开(公告)号：US20220291327A1

公开(公告)日：2022-09-15

申请号：US17202177

申请日：2021-03-15

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Dan Zhang ,  Junyi Li

IPC: G01S5/02 ,  G01S7/42 ,  H04W76/14 ,  H04W24/10 ,  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.

公开(公告)号：US20220272626A1

公开(公告)日：2022-08-25

申请号：US17180677

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Junyi Li ,  Kapil Gulati ,  Dan Zhang ,  Chang-Sik Choi

IPC: H04W52/02 ,  H04W24/10 ,  H04W4/38

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may select, based at least in part on a sensor selection criteria, a first subset of sensors from a set of available sensors of the UE, each sensor in the set of available sensors associated with a sensor type. The UE may perform, using the first subset of sensors, sensing operations to obtain a first sensing data, the first sensing data comprising sensing data measured by the UE during the sensing operations. The UE may transmit a first sensing report indicating the first sensing data. The UE may receive, based at least in part on the first sensing report, a second sensing report indicating a second sensing data, the second sensing data comprising a unified sensing report based on the first sensing report from the UE and one or more additional sensing reports from other UE.

公开(公告)号：US20220221553A1

公开(公告)日：2022-07-14

申请号：US17149594

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Dan Zhang ,  Junyi Li

IPC: G01S7/02 ,  G01S7/35 ,  H04W74/08

Abstract: Methods, apparatuses, and computer program products for radar devices are provided. A radar device may detect an interfering radar signal from a second radar device that interferes with measurement of a return of a radar signal from the first radar device. The radar device may perform a timing adjustment action in response to detecting the interfering radar signal from the second radar device.

公开(公告)号：US20210051730A1

公开(公告)日：2021-02-18

申请号：US16992678

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Dan Zhang ,  Xiao Feng Wang ,  Peter Gaal ,  Jun Ma ,  Qiang Wu ,  Iyab Issam Sakhnini ,  Huilin Xu

IPC: H04W74/08 ,  H04L5/00 ,  H04L27/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station by initiating a random access procedure with a two-root preamble. The UE may receive, from the base station, control signaling that indicates a set of root preamble sequences. The UE may transmit, to the base station, a preamble signal that is generated based on a first root preamble sequence and a second root preamble sequence of the set of root preamble sequences. The UE may then monitor for a preamble response based on the preamble signal. In some cases, the base station may be a base station in a terrestrial network. In other cases, the base station may be a satellite in a non-terrestrial network (NTN).

公开(公告)号：US20200313754A1

公开(公告)日：2020-10-01

申请号：US16831699

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Jun Ma ,  Iyab Issam Sakhnini ,  Dan Zhang

IPC: H04B7/185 ,  H04L27/26 ,  H04W74/08 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently determining appropriate uplink frequencies for uplink transmissions to a satellite. As described herein, a wireless communications system may support a closed loop frequency correction scheme where a satellite may provide an uplink frequency correction to a user equipment (UE) such that the UE may be able to identify an appropriate uplink frequency for an uplink transmission. In some implementations, the UE may first transmit an uplink signal to the satellite on an initial uplink frequency, and the satellite may determine a corrected uplink frequency for the UE based on the initial uplink frequency. The satellite may then transmit an indication of the corrected uplink frequency to the UE, and the UE may transmit a second uplink signal based on the corrected uplink frequency.

公开(公告)号：US12298434B2

公开(公告)日：2025-05-13

申请号：US17244274

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Dan Zhang ,  Kapil Gulati ,  Junyi Li

IPC: G01S7/41 ,  G01S13/34 ,  G01S13/42 ,  G01S13/87 ,  G01S13/931

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE), such as a vehicle that is enabled with radar detection and ranging, may include multiple radars or radar components and may receive, at a first radar, a first radar waveform in a field of view (FOV) associated with the first radar. The UE may determine a trajectory of the target object which may indicate the target object entering a FOV of a second radar. The UE may receive, at the second radar, a second radar waveform in the FOV of the second radar and may associate the second radar waveform with the target object based on the trajectory of the target object and the second radar waveform being in the FOV of the second radar.

公开(公告)号：US12216212B2

公开(公告)日：2025-02-04

申请号：US17757931

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Qiang Wu ,  Huilin Xu ,  Xiao Feng Wang ,  Iyab Issam Sakhnini ,  Dan Zhang ,  Yiqing Cao

IPC: G01S19/11 ,  H04L5/00 ,  H04W64/00 ,  H04W84/06

Abstract: Disclosed are techniques for positioning. A receiver measures a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter, measures a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter, and determines an observed time difference of arrival (OTDOA) as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence, wherein the OTDOA is less than half a maximum differential delay expected between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

公开(公告)号：US12204018B2

公开(公告)日：2025-01-21

申请号：US17446247

申请日：2021-08-27

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Junyi Li ,  Dan Zhang

IPC: G01S13/87 ,  G01S13/76 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive a reflection of a first radar waveform transmitted by the first UE. The UE may receive a second radar waveform from a second UE, wherein the second radar waveform is a direct transmission from the second UE or a reflection of the direct transmission. The UE may perform target detection based at least in part on the reflection of the first radar waveform and on the second radar waveform. Numerous other aspects are described.

公开(公告)号：US12156149B2

公开(公告)日：2024-11-26

申请号：US17171731

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Huilin Xu ,  Jun Ma ,  Dan Zhang ,  Iyab Issam Sakhnini

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/044 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A satellite may determine one or more sets set of resources for conveying reference signals to a user terminal. In one example, the satellite may determine a set of resources that includes multiple resource groups each associated with a respective frequency range. In another example, the satellite may determine multiples sets of resources and each set of resources may include resources within respective frequency range. Upon determining the set(s) of resources, the satellite may transmit an indication of the set(s) of resources to a user terminal.