公开(公告)号：US20240085552A1

公开(公告)日：2024-03-14

申请号：US17931470

申请日：2022-09-12

Applicant: QUALCOMM Incorporated

Inventor： Dongsik KIM ,  Koorosh AKHAVAN ,  Anand Srinivas GURUSWAMY ,  Damith Nivantha SENARATNE ,  Le Nguyen LUONG

IPC: G01S13/76 ,  G01S13/87

CPC classification number: G01S13/765 ,  G01S13/878

Abstract: An example method of ultra-wideband (UWB) sensing performed by a wireless communication device, the method comprising determining a first channel impulse response (CIR) estimation of a first frequency channel based on a radio access technology (RAT) session, wherein the RAT is different from UWB. The method also comprises determining a second CIR estimation of a second frequency channel based on a UWB session and determining a third CIR estimation of the first frequency channel based on determining a phase difference between the third CIR estimation and the first CIR estimation. The method further comprises determining a total CIR estimation for a combined frequency channel comprising the first frequency channel and the second frequency channel based on stitching the first CIR estimation, the second CIR estimation, and the third CIR estimation.

公开(公告)号：US20230361809A1

公开(公告)日：2023-11-09

申请号：US17960056

申请日：2022-10-04

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Le Nguyen LUONG ,  Koorosh AKHAVAN

IPC: H04B1/7183

CPC classification number: H04B1/7183

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may transmit, to a second wireless communication device, a time and/or frequency synchronization message using a first radio frequency (RF) technology, wherein the time and/or frequency synchronization message is used to obtain synchronization information for a second RF technology. The first wireless communication device may transmit, to the second wireless communication device, a first set of ranging measurement signals associated with the second RF technology. The first wireless communication device may receive, from the second wireless communication device, a second set of ranging measurement signals associated with the second RF technology. Numerous other aspects are described.

公开(公告)号：US20240106496A1

公开(公告)日：2024-03-28

申请号：US17934513

申请日：2022-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yi ZENG ,  Cheng-Han WANG ,  Emanuele LOPELLI ,  Chan Hong PARK ,  Liang ZHAO ,  Le Nguyen LUONG ,  Koorosh AKHAVAN

IPC: H04B1/717 ,  H03F3/24

CPC classification number: H04B1/7174 ,  H03F3/245 ,  H03F2200/09 ,  H03F2200/451

Abstract: Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.

公开(公告)号：US20230291610A1

公开(公告)日：2023-09-14

申请号：US17804243

申请日：2022-05-26

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Koorosh AKHAVAN ,  Le Nguyen LUONG ,  Ishaque Ashar KADAMPOT

IPC: H04L25/02 ,  H04W52/52

CPC classification number: H04L25/0212 ,  H04W52/52

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a responding device may receive a signal from an initiating device. The responding device may estimate, from the signal, a channel impulse response (CIR) that represents signal reflections from one or more objects as multiple taps. The responding device may select one or more taps, from the multiple taps, that are within a first time window that starts at a first offset from a reference point and that has a first specified time duration. The responding device may transmit, to the initiating device, a CIR report that indicates the one or more taps. Numerous other aspects are described.

公开(公告)号：US20190090081A1

公开(公告)日：2019-03-21

申请号：US15709246

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Robin HEYDON ,  Joel LINSKY ,  Le LUONG ,  Koorosh AKHAVAN ,  Brian REDDING

IPC: H04W4/00 ,  H04L27/20 ,  H04L29/06

Abstract: Using the modulation scheme and/or coding techniques of traditional BLE may limit not only the data rate, but also limit the amount that the transmit power of a BLE air interface packet can be reduced due to receiver sensitivity. Namely, the lowest signal power level from which a receiving device may obtain information without meeting a BER threshold may limit the amount that the transmit power at the transmitter side can be reduced. There exists a need to transmit a BLE air interface packet using a modulation rate that is greater than 1 Mbps or 2 Mbps, enables a further reduction in transmit power, and/or enables an increase in receiver sensitivity. The present disclosure provides a solution by applying a coding technique and a PSK modulation scheme to a BLE air interface packet that increases data rate and reduces the sensitivity of the receiving device as compared to traditional BLE.

公开(公告)号：US20250105928A1

公开(公告)日：2025-03-27

申请号：US18471345

申请日：2023-09-21

Applicant: QUALCOMM INCORPORATED

Inventor： Cheng-Han WANG ,  Varun Amar REDDY ,  Qi ZHOU ,  Hsin-Hsu CHEN ,  Liang ZHAO ,  Koorosh AKHAVAN ,  Yi ZENG ,  Chan Hong PARK ,  Le Nguyen LUONG

IPC: H04B17/21 ,  H04B17/00

Abstract: A system for radio frequency (RF) residual sideband (RSB) calibration includes a complex (in phase/quadrature (I/Q)) signal receiver, a signal generator configured to generate a transmit (Tx) signal, a first phase shifter operably coupled to the real signal transmitter, a first signal combiner configured to combine a receive (Rx) signal with the transmit (Tx) signal to generate a first combined signal, a second phase shifter configured to provide a selected phase shift to the first combined signal, and a complex downconverter configured to generate an in phase Rx signal and a quadrature Rx signal alternatively using an in phase LO signal and a quadrature LO signal to generate one or more signals indicative of relative Tx-Rx LO phase (θ), amplitude (A), Tx LO I/Q phase mismatch (ε), Rx I/Q amplitude mismatch (α), and Rx I/Q phase mismatch (φ) at the output of the complex receiver.

公开(公告)号：US20240430727A1

公开(公告)日：2024-12-26

申请号：US18706175

申请日：2022-04-06

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Stephen Jay SHELLHAMMER ,  Bin TIAN ,  Ishaque Ashar KADAMPOT ,  Koorosh AKHAVAN ,  Le Nguyen LUONG ,  Alexandros MANOLAKOS ,  Varun Amar REDDY

IPC: H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an initiating device may transmit a signal that includes multiple packets. The initiating device may receive, from a responding device, a channel impulse response (CIR) report for each packet of the multiple packets. The initiating device may align, using one or more taps in the CIR report for each packet, the CIR reports across the multiple packets to identify a target object, a location of the target object, or a movement of the target object. The initiating device may perform an action based at least in part on the target object, the location of the target object, or the movement of the target object. Numerous other aspects are described.

公开(公告)号：US20240380641A1

公开(公告)日：2024-11-14

申请号：US18499972

申请日：2023-11-01

Applicant: QUALCOMM Incorporated

Inventor： Pooria PAKROOH ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Le Nguyen LUONG ,  Koorosh AKHAVAN

IPC: H04L25/02 ,  H04W24/10 ,  H04W76/10

Abstract: This disclosure provides methods, components, devices and systems for radio frequency sensing control for an ultra-wideband system. Some aspects more specifically relate to setting up one or more sensing instances (sensing rounds) for one or more respective sensing operations. In some implementations, a first wireless device (for example a controller, an initiator) may transmit a sensing session setup request frame that indicates a set of parameters for the one or more sensing instances. For each of the sensing instances, the first wireless device may transmit a sensing control information element that includes at least a common sensing control configuration and a channel impulse response report configuration. The first wireless device may participate in the sensing operations with at least a second wireless device (for example one or more responders or controlees) during the respective sensing instances.

公开(公告)号：US20250113381A1

公开(公告)日：2025-04-03

申请号：US18977124

申请日：2024-12-11

Applicant: QUALCOMM Incorporated

Inventor： Bin TIAN ,  Pooria PAKROOH ,  Le Nguyen LUONG ,  Koorosh AKHAVAN ,  Youhan KIM ,  Maarten Menzo WENTINK ,  Tevfik YUCEK ,  Olaf Josef HIRSCH ,  Didier Johannes Richard VAN NEE ,  Vincent Knowles JONES

IPC: H04W74/0816 ,  H04W4/80 ,  H04W56/00 ,  H04W72/1263 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may perform a listen-before-talk (LBT) procedure for a narrowband communication that provides time and frequency synchronization and/or scheduling information for an ultra-wideband (UWB) communication. The wireless device may transmit the narrowband communication in response to the LBT procedure being successful. The wireless device may transmit the UWB communication based at least in part on the time and frequency synchronization and/or scheduling information. Numerous other aspects are described.

公开(公告)号：US20240413916A1

公开(公告)日：2024-12-12

申请号：US18332623

申请日：2023-06-09

Applicant: QUALCOMM Incorporated

Inventor： Ehsan HOSSEINI ,  Dongsik KIM ,  Koorosh AKHAVAN ,  Le Nguyen LUONG

IPC: H04B17/336 ,  H04L25/02

Abstract: This disclosure provides methods, components, devices and systems for adjacent channel interference (ACI) mitigation techniques for ultra-wideband (UWB) systems. Some aspects more specifically relate to ACI mitigation for UWB systems. In some implementations, a wireless communication device may receive control information that identifies a preamble for communications to the wireless communication device in a UWB system. The wireless communication device may receive, via a signal in the UWB system, a data packet that includes the preamble. The wireless communication device may estimate a channel impulse response (CIR) of the signal and determine an interference metric that is based on the estimated CIR. The wireless communication device may process the data packet based on the interference metric.