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公开(公告)号：US20250024406A1
公开(公告)日：2025-01-16
申请号：US18350562
申请日：2023-07-11
Applicant: QUALCOMM Incorporated
Inventor： Patrick Poon-Cheuk CHAN , Xiaoxin ZHANG , Alireza RAISSINIA
Abstract: This disclosure provides methods, components, devices, and systems for sounding for trigger-based ranging. Some aspects more specifically relate to a first wireless device dividing a frequency bandwidth available for ranging procedures into a plurality of subbands in accordance with orthogonal frequency-division multiple access (OFDMA) techniques. In some implementations, the first wireless device may transmit a trigger frame that assigns a subband to a respective neighbor wireless device. Each respective neighbor wireless device may transmit, during a same time occasion, a respective sounding signal via each respective subband allocated to the respective neighbor wireless device. In some implementations, the first wireless device may perform sounding procedures using combined multiple input multiple output (MIMO) and OFDMA techniques, where each neighbor wireless device may be assigned a respective spatial stream. Accordingly, the first wireless device may support sounding procedures for larger quantities of neighbor wireless devices.
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公开(公告)号：US20240411009A1
公开(公告)日：2024-12-12
申请号：US18701551
申请日：2022-10-11
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin ZHANG , Mukul SHARMA , Bala RAMASAMY
Abstract: Disclosed are techniques for positioning. In an aspect, a positioning entity obtains a plurality of pairs of timing measurements based on a plurality of pairs of ranging messages exchanged on a plurality of bandwidths, determines a plurality of range measurements based on the plurality of pairs of timing measurements, each range measurement of the plurality of range measurements based on one pair of the plurality of pairs of timing measurements, determines a weight for each range measurement of the plurality of range measurements based at least on a bandwidth of the plurality of bandwidths of a pair of timing measurements of the plurality of pairs of timing measurements used to determine the range measurement, and determines a weighted mean of the plurality of range measurements based at least on the plurality of range measurements and weights of the plurality of range measurements.
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公开(公告)号：US20240155303A1
公开(公告)日：2024-05-09
申请号：US18549508
申请日：2022-05-02
Applicant: QUALCOMM Incorporated
Inventor： Erik VISSER , Lae-Hoon KIM , Jason FILOS , Xiaoxin ZHANG
CPC classification number: H04S7/303 , G01S7/006 , G01S7/411 , G01S13/726 , H04R3/005 , H04R5/027 , H04S2400/11 , H04S2400/15
Abstract: Disclosed are systems and techniques for detecting audio sources and configuring acoustic device settings. For instance, a wireless device can obtain a first set of radio frequency (RF) sensing data associated with a first plurality of received waveforms corresponding to a first transmitted waveform reflected off of a plurality of reflectors. Based on the first set of RF sensing data, the wireless device can determine a classification of a first reflector from the plurality of reflectors. The wireless device can determine at least one acoustic setting based on the classification of the at least one reflector.
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公开(公告)号：US20230309077A1
公开(公告)日：2023-09-28
申请号：US17654208
申请日：2022-03-09
Applicant: QUALCOMM Incorporated
Inventor： Hussein METWALY SAAD , Xiaoxin ZHANG , Peerapol TINNAKORNSRISUPHAP , Simone MERLIN , Prashanth Haridas HANDE
IPC: H04W72/04
CPC classification number: H04W72/046
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain radio frequency (RF) sensing information indicating at least one of movement information associated with the UE or environment information associated with the UE. The UE may communicate, with a network entity, using a communication parameter that is based at least in part on the RF sensing information. Numerous other aspects are described.
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5.发明公开公开(公告)号：US20230239707A1
公开(公告)日：2023-07-27
申请号：US17648789
申请日：2022-01-24
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Brian MOMEYER , Brian Clarke BANISTER , Udara FERNANDO , Eyosias Yoseph IMANA , Raghu Narayan CHALLA , Jiaying PAN , Xiaoxin ZHANG , Bala RAMASAMY
CPC classification number: H04W16/28 , H04W52/367
Abstract: A method for wireless communication performed by a head-mounted user equipment (UE), the method includes determining a first spatial relationship between an eye of a human user of the head-mounted UE and physical transmission and reception ports of the head-mounted UE; based on the first spatial relationship, determining a second spatial relationship between a plurality of radio frequency (RF) beam directions of the head-mounted UE and the eye of the human user; selecting a first RF beam direction from among the plurality of RF beam directions based at least in part on the second spatial relationship with respect to the first RF beam direction; and transmitting or receiving RF radiation using a first RF beam conforming to the first RF beam direction.
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Patent Agency Ranking
公开(公告)号：US20230071554A1
公开(公告)日：2023-03-09
申请号：US17470061
申请日：2021-09-09
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin ZHANG , Le Nguyen LUONG , Liang ZHAO , Rishabh RAJ , Ravindra CHAUHAN
Abstract: Techniques are provided for improving ranging accuracy of ultrawideband (UWB) devices. An example method for obtaining a distance measurement with a wireless node includes obtaining a first distance measurement using a first radio link, determining a status of a second radio link in response to the first distance measurement being less than a threshold distance, configuring one or more transceiver parameters associated with the second radio link in response to determining the second radio link is utilizing a non-line of sight path, and obtaining a second distance measurement using the second radio link and the one or more transceiver parameters.
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公开(公告)号：US20190089472A1
公开(公告)日：2019-03-21
申请号：US16133632
申请日：2018-09-17
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin ZHANG , James Simon CHO
Abstract: Devices and methods for wireless communication are disclosed. A method includes a wireless station receiving a first packet that includes a first media payload and a first media timestamp from a second device. The method includes the station capturing a time of arrival (TOA) timestamp in response to receiving the first packet from the second device. The TOA timestamp is sampled using a device clock of the station. The method includes the station receiving a second packet that includes a second media payload and a second media timestamp from the second device. A time of departure (TOD) timestamp associated with a transmission time of the first packet is embedded in the second packet. The TOD timestamp is sampled using a system clock of the second device. The method includes the station synchronizing its device clock to the system clock of the second device based on the TOA and TOD timestamps.
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公开(公告)号：US20180359165A1
公开(公告)日：2018-12-13
申请号：US15619243
申请日：2017-06-09
Applicant: QUALCOMM Incorporated
Inventor： Javier FRYDMAN , Bernal ARROYO , Xiaoxin ZHANG
Abstract: In a particular aspect, an apparatus includes first communication circuitry configured to perform first fine timing measurement (FTM) operations with respect to a device to generate first measurement data. The first FTM operation correspond to a first frequency band. The apparatus includes second communication circuitry configured to perform second FTM operations with respect to the device to generate second measurement data. The second FTM operations correspond to a second frequency band that is different than the first frequency band. The apparatus also includes a processor configured to compare the first measurement data and the second measurement data.
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公开(公告)号：US20240259060A1
公开(公告)日：2024-08-01
申请号：US18160534
申请日：2023-01-27
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Osama SHAHID , Peyman SIYARI , Xiaoxin ZHANG
IPC: H04B7/06
CPC classification number: H04B7/0626
Abstract: In some implementations, a device may obtain channel state information (CSI) corresponding to each subcarrier of a plurality of subcarriers in a set of RF transmissions comprising at least the plurality of subcarriers. The device may extract phase information of the CSI corresponding to each subcarrier and determine, for each subcarrier, a frequency spectrum from the phase information of the CSI, where the frequency spectrum comprises phase change values of the CSI corresponding to the respective subcarrier for a plurality of frequencies. The device may determine a breathing rate from the frequency spectrum of the CSI corresponding to a subcarrier set comprising one or more of the subcarriers, the breathing rate corresponding to a phase change value in the frequency spectrum within a predetermined range of frequencies for breathing rates. The device may output an indication of the determined breathing rate.
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公开(公告)号：US20240224198A1
公开(公告)日：2024-07-04
申请号：US18546383
申请日：2022-01-27
Applicant: QUALCOMM Incorporated
Inventor： Alexandros MANOLAKOS , Weimin DUAN , Xiaoxin ZHANG
IPC: H04W52/36 , H04W52/24 , H04W72/232 , H04W72/25
CPC classification number: H04W52/365 , H04W52/243 , H04W52/367 , H04W72/232 , H04W72/25
Abstract: Implementations of a sensing headroom report (HR), generating the sensing HR, and adjusting transmit powers and other parameters are described. A device transmits a radar wireless signal at a first transmit power from one or more transmit chains. The device also senses the radar wireless signal. The device generates a sensing HR based on sensing the radar wireless signal. The sensing HR may include one or more indications of metrics associated with a received power, such as a transmit power headroom, a sensing headroom, or a combination of a self-interference power, noise, and received power. The device provides the sensing HR to another device in the wireless network (such as via a base station and/or core network to a radar server), and another device may determine a transmit power or other device parameters to be used for sensing.
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