公开(公告)号：US12057036B2

公开(公告)日：2024-08-06

申请号：US17931818

申请日：2022-09-13

Applicant: QUALCOMM Incorporated

Inventor： Parthiban Ellappan ,  Danlu Zhang ,  Peerapol Tinnakornsrisuphap ,  Jiaying Pan ,  Xiaoxin Zhang ,  Brian Momeyer

IPC: G09G3/00 ,  G06F1/16 ,  G06F1/20 ,  H04L67/125

CPC classification number: G09G3/001 ,  G06F1/163 ,  G06F1/206 ,  H04L67/125 ,  G09G2320/041 ,  G09G2320/06 ,  G09G2330/045 ,  G09G2350/00 ,  G09G2370/02 ,  G09G2370/10 ,  G09G2370/16

Abstract: Embodiments include methods for managing component temperatures in wearable devices by a remote computing device, such as an edge server, instructing changes in wearable device component processing loads, operations or operating modes. Methods performed in a wearable device receiving data from an edge server may include obtaining a plurality of temperature measurements from a plurality of hardware components, transmitting the temperature measurements to the edge server, receiving an instruction related to operations of an application executing on the processor of the wearable device, and adjusting an operating parameter based on the received instruction. Methods performed in the edge server include receiving the temperature measurements from the wearable device, identify one or more adjustments to operations of the plurality of hardware components based on the plurality of temperature measurements, and sending the wearable device an instruction to adjust operations of at least one of the plurality of hardware components.

公开(公告)号：US11909835B2

公开(公告)日：2024-02-20

申请号：US17478482

申请日：2021-09-17

Applicant: QUALCOMM Incorporated

Inventor： Bala Ramasamy ,  Xiaoxin Zhang ,  Edwin Chongwoo Park ,  Danlu Zhang

IPC: H04L67/50 ,  H04L67/52

CPC classification number: H04L67/535 ,  H04L67/52

Abstract: Disclosed are systems and techniques for transferring device content using radio frequency (RF) sensing. For instance, a first wireless device can identify a first user of the first wireless device based on a first radio frequency (RF) signature associated with the first user. The first wireless media device can determine a disengagement of the first user from the first wireless media device. In response to the disengagement, content information associated with usage of the first wireless device by the first user can be captured.

公开(公告)号：US11877352B2

公开(公告)日：2024-01-16

申请号：US17237908

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Stephen Jay Shellhammer ,  Kapil Rai ,  Jayanand Asok Kumar ,  Vikram Kandukuri ,  Sarin Mathen

IPC: H04W80/02 ,  H04B17/336 ,  H04B17/354 ,  H04B7/0413 ,  H04W84/12

CPC classification number: H04W80/02 ,  H04B17/336 ,  H04B17/354 ,  H04B7/0413 ,  H04W84/12

Abstract: In an aspect, a wireless device is configured to transmit a physical layer protocol data unit on one or more channels, wherein the physical layer protocol data unit includes a first portion and a second portion. The first portion includes a signal length field indicating a duration of a transmission of the physical layer protocol data unit. The second portion includes a plurality of Wi-Fi sensing fields. The wireless device is configured to receive a reflected signal and a leakage signal associated with the physical layer protocol data unit. The reflected signal includes the physical layer protocol data unit reflected off of a target object. The leakage signal is associated with the physical layer protocol data unit.

公开(公告)号：US20230319882A1

公开(公告)日：2023-10-05

申请号：US17707772

申请日：2022-03-29

Applicant: QUALCOMM Incorporated

Inventor： Alireza Raissinia ,  Xiaoxin Zhang ,  Stephen Jay Shellhammer

IPC: H04W74/08 ,  H04W72/12 ,  H04W74/06 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W72/121 ,  H04W74/06 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communication are described. A first wireless communications device may transmit, to one or more second wireless communications devices, a first message that triggers transmission of a second message by each of the one or more second wireless communications devices, the first message allocating to each of the one or more second wireless communications devices a respective frequency-based resource unit for transmission of the second message, each of the respective frequency-based resource units spanning a portion of a channel bandwidth of a channel. The first wireless communications device may perform channel sensing measurements on the second message received from each of the one or more second wireless communications devices. The first wireless communications device may estimate the channel based on the channel sensing measurements performed on the respective second messages received on the respective frequency-based resource units.

公开(公告)号：US11743682B2

公开(公告)日：2023-08-29

申请号：US17229794

申请日：2021-04-13

Applicant: QUALCOMM Incorporated

Inventor： Rishabh Raj ,  Xiaoxin Zhang ,  Parthiban Ellappan ,  Shree Raman Srinivasan ,  Ravindra Chauhan

IPC: H04W4/02 ,  H04W4/80 ,  H04W80/06 ,  H04W72/54 ,  H04W84/18

CPC classification number: H04W4/023 ,  H04W4/025 ,  H04W4/80 ,  H04W72/54 ,  H04W80/06 ,  H04W84/18

Abstract: Disclosed are systems and techniques for performing mapping using radio frequency (RF) sensing. For instance, a server can obtain a first set of RF sensing data and orientation data corresponding to a first wireless device from a plurality of wireless devices. The first set of RF sensing data can be associated with at least one received waveform that is a reflection of a transmitted waveform from a first reflector. Based on the first set of RF sensing data, orientation data, and location data corresponding to the first wireless device, an indoor map can be generated that includes a reference to the reflector.

公开(公告)号：US20230123087A1

公开(公告)日：2023-04-20

申请号：US17451565

申请日：2021-10-20

Applicant: QUALCOMM Incorporated

Inventor： Govind SINGH ,  Sudhanshu SINGH ,  Xiaoxin Zhang

IPC: G01S5/02 ,  G01C21/20

Abstract: Disclosed are techniques for wireless communication. In an aspect, a first station (STA) may receive a first packet from a second STA at a first time-of-arrival of the first packet. The first STA may activate a strobe signal to store first sensor data at the first time-of-arrival, wherein the first sensor data corresponds to a sensor output of one or more sensors of the first STA at the first time-of-arrival, wherein the one or more sensors include an accelerometer, a gyroscope, a magnetometer, or any combination thereof.

公开(公告)号：US20220345187A1

公开(公告)日：2022-10-27

申请号：US17238190

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Simone MERLIN ,  Alireza RAISSINIA ,  Bin TIAN ,  Xiaoxin Zhang ,  Solomon TRAININ ,  Assaf KASHER ,  Manish MADAN ,  John GRESZCZUK

IPC: H04B7/06 ,  H04L25/02 ,  H04W74/08 ,  H04W80/02 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for radio frequency (RF) sensing in wireless communication systems. In some implementations, a transmitter device transmits sounding sequences configured for channel estimation over a wireless channel to a receiver device. The transmitter device also transmits or receives non-sounding frames associated with a channel report of the receiver device. The transmitter device transmits a frame soliciting the channel report from the receiver device. The transmitter device receives the channel report, which may include channel state information (CSI) of the wireless channel responsive to at least the sounding sequences. Some types of channel reports may take longer to generate than other types of channel reports. Transmitting or receiving the non-sounding frames during the time period may prevent other devices from accessing the wireless channel when the receiver device needs additional time to generate a certain type of channel report.

公开(公告)号：US11131743B2

公开(公告)日：2021-09-28

申请号：US15191493

申请日：2016-06-23

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Jeff Smith ,  Xiaoxin Zhang ,  Chia-Hui Lin ,  Yen-Feng Lee ,  Ravi Gidvani ,  Alecsander Eitan ,  Rahul Malik

IPC: G01S5/00 ,  H04W4/029 ,  G01S5/02 ,  H04W4/02 ,  H04W24/10 ,  H04W84/12 ,  H04W88/02

Abstract: Disclosed embodiments facilitate wireless channel calibration, including ranging and direction finding, between wirelessly networked devices. In some embodiments. a method on a first station (STA) may comprise: transmitting a first NDPA frame to one or more second stations (STAs), the first NDPA frame comprising a first bit indicating that one or more subsequent frames comprise ranging or angular information; and transmitting, after a Short Interval Frame Space (SIFS) time interval, a second frame. The second frame may be one of: a Null Data Packet az (NDP_az) frame with information about a time of transmission of the NDP_az frame, or a Null Data Packet (NDP) frame, or a Beam Refinement Protocol (BRP) frame. The first NDPA frame may be unicast, multicast, or broadcast.

公开(公告)号：US20200068520A1

公开(公告)日：2020-02-27

申请号：US16107043

申请日：2018-08-21

Applicant: QUALCOMM Incorporated

Inventor： Subash Marri Sridhar ,  Sai Pradeep Venkatraman ,  Xiaoxin Zhang

IPC: H04W64/00 ,  H04W8/00 ,  H04L5/00 ,  H04W24/10 ,  H04B17/309 ,  H04W56/00

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for a ranging protocol between two wireless local area network (WLAN) devices. In one aspect, the ranging protocol may be adjusted based on channel quality of a wireless medium between the WLAN devices. For example, a quantity of ranging frames and bandwidth for the ranging frames may be adjusted based on the channel quality. In some implementations, the channel quality may be determined using setup messages for the ranging protocol without a wireless association between the WLAN devices. The ranging protocol may be useful for range determination in an indoor environment where a WLAN is deployed. In some implementations, the ranging protocol may be used to determine a location of a WLAN device.

公开(公告)号：US20190305813A1

公开(公告)日：2019-10-03

申请号：US16297425

申请日：2019-03-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Erik David Lindskog ,  Sunil Ravi ,  Kurt Erwin Landenberger ,  Mukul Sharma ,  Arjun Bhatia

IPC: H04B1/44 ,  H04B7/04 ,  H04W24/10 ,  G01S13/76

Abstract: This disclosure provides systems, methods and apparatuses, including computer programs encoded on computer storage media, for ranging procedures performed using antenna switching. In one aspect, a device initiating a ranging procedure may transmit a ranging request, which may include antenna switching capabilities of the initiating device, a request for antenna switching by a responding device during the ranging procedure, or both. Ranging signaling may be communicated between the initiating device and the responding device using different transmit antennas, receive antennas, or both. In some implementations, ranging messages transmitted by the responding device may include transmit antenna indices used for transmission of different ranging messages, and receive antenna indices used for reception of different ranging response messages. The initiating device may estimate a range relative to the responding device based on round trip times (RTTs) associated with different antenna pairs used during the ranging procedure.