公开(公告)号：WO2021262570A1

公开(公告)日：2021-12-30

申请号：PCT/US2021/038185

申请日：2021-06-21

Applicant: QUALCOMM INCORPORATED

Inventor： HUANG, Yi ,  HUANG, Fei ,  ZHANG, Duo ,  GULATI, Kapil ,  JI, Tingfang ,  MANOLAKOS, Alexandros ,  ZHU, Xipeng ,  COOPER, Rotem ,  SHAH, Jigneshkumar ,  BERGAN, Charles Alfred

IPC: H04W64/00 ,  G01S5/0027 ,  G01S5/0054 ,  G01S5/0215 ,  G01S5/0226 ,  H04W4/023 ,  H04W76/14 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described in which UEs in sidelink communications may perform UE-to-UE positioning and ranging estimations through exchange of one or more predefined waveforms. A first UE may transmit a first predefined waveform, which may be received at a second UE. The second UE may, responsive to detection of the first predefined waveform, transmit a second predefined waveform, which may be received at the first UE. The first UE may use a closed-loop machine-learning algorithm to estimate a position of the first UE, ranging information between the first UE and the second UE, or combinations thereof. The position/ranging information may be provided to a base station, which may fuse multiple estimates and transmit updated positioning/ranging information to the first UE, the second UE, or both.

公开(公告)号：WO2022016335A1

公开(公告)日：2022-01-27

申请号：PCT/CN2020/103094

申请日：2020-07-20

Applicant: QUALCOMM INCORPORATED

Inventor： ZHU, Xipeng ,  HUANG, Fei ,  ZHANG, Duo ,  CHENG, Hong ,  MANOLAKOS, Alexandros ,  GULATI, Kapil ,  JI, Tingfang ,  HUANG, Yi ,  COOPER, Rotem ,  BERGAN, Charles ,  SHAH, Jigneshkumar

IPC: G01S5/02

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a first user equipment (UE) transmits a request to perform a UE-UE positioning procedure with a second UE, receives a radio resource configuration for the UE-UE positioning procedure, the radio resource configuration indicating first radio resources for transmitting positioning signals to the second UE and second radio resources for receiving positioning signals from the second UE, transmits one or more first positioning signals to the second UE on the first radio resources, receives one or more second positioning signals from the second UE on the second radio resources, and enables a distance between the first UE and the second UE to be estimated based on at least transmission times of the one or more first positioning signals and times of arrival (ToAs) of the one or more second positioning signals.

公开(公告)号：WO2009111206A1

公开(公告)日：2009-09-11

申请号：PCT/US2009/034925

申请日：2009-02-23

Applicant: QUALCOMM INCORPORATED ,  TSAI, Ming-Chang ,  SHAH, Jigneshkumar ,  CHADHA, Kanu

Inventor： TSAI, Ming-Chang ,  SHAH, Jigneshkumar ,  CHADHA, Kanu

IPC: H04W56/00

CPC classification number: H04B7/2675 ,  H04W56/0035 ,  H04W56/0045

Abstract: A method is provided for compensating for clock drift error and movement error of an access terminal. A forward link error is obtained that is attributable to at least a first error (e.g., clock drift error) component and a second error (e.g., movement error) component. The first error component and the second error component are estimated based on the obtained forward link error. A receive clock of the access terminal is compensated based on a combination of the first error component and the second error component. A transmit clock of the access terminal is compensated based on a difference between the first error component and the second error component. The forward link error may include a timing synchronization error between the access terminal and an access point as well as a frequency synchronization error between a forward link frequency and a baseband reference frequency.

Abstract translation: 提供了一种用于补偿接入终端的时钟漂移误差和移动误差的方法。 获得可归因于至少第一误差（例如，时钟漂移误差）分量和第二误差（例如，运动误差）分量的前向链路误差。 基于获得的前向链路误差来估计第一误差分量和第二误差分量。 基于第一误差分量和第二误差分量的组合来补偿接入终端的接收时钟。 基于第一误差分量和第二误差分量之间的差异来补偿接入终端的传输时钟。 前向链路错误可以包括接入终端和接入点之间的定时同步误差以及正向链路频率和基带参考频率之间的频率同步误差。

公开(公告)号：EP4182716A1

公开(公告)日：2023-05-24

申请号：EP20945844.7

申请日：2020-07-20

Applicant: QUALCOMM Incorporated

Inventor： ZHU, Xipeng ,  HUANG, Fei ,  ZHANG, Duo ,  CHENG, Hong ,  MANOLAKOS, Alexandros ,  GULATI, Kapil ,  JI, Tingfang ,  HUANG, Yi ,  COOPER, Rotem ,  BERGAN, Charles ,  SHAH, Jigneshkumar

IPC: G01S5/02

公开(公告)号：EP4544692A1

公开(公告)日：2025-04-30

申请号：EP23735481.6

申请日：2023-05-31

Applicant: QUALCOMM INCORPORATED

Inventor： SHAH, Jigneshkumar ,  SACHIDANAND SINHA, Abhishek Saurabh ,  GARYANTES, Michael Francis ,  AGARWAL, Deepak ,  VAGNER, Shmuel

IPC: H04B7/024 ,  H04B7/06

公开(公告)号：EP4487535A1

公开(公告)日：2025-01-08

申请号：EP23705174.3

申请日：2023-01-12

Applicant: QUALCOMM INCORPORATED

Inventor： SAYED HASSAN, Mohamad ,  RADULESCU, Andrei Dragos ,  JAYARAMAN, Srikant ,  WALLACE, Mark ,  GARYANTES, Michael Francis ,  BLESSENT, Luca ,  PRAKASH, Rajat ,  SACHIDANAND SINHA, Abhishek Saurabh ,  SHAH, Jigneshkumar

IPC: H04L25/02 ,  H04B7/0452

公开(公告)号：EP2269413A1

公开(公告)日：2011-01-05

申请号：EP09717185.4

申请日：2009-02-23

Applicant: QUALCOMM Incorporated

Inventor： TSAI, Ming-Chang ,  SHAH, Jigneshkumar ,  CHADHA, Kanu

IPC: H04W56/00

CPC classification number: H04B7/2675 ,  H04W56/0035 ,  H04W56/0045

Abstract: A method is provided for compensating for clock drift error and movement error of an access terminal. A forward link error is obtained that is attributable to at least a first error (e.g., clock drift error) component and a second error (e.g., movement error) component. The first error component and the second error component are estimated based on the obtained forward link error. A receive clock of the access terminal is compensated based on a combination of the first error component and the second error component. A transmit clock of the access terminal is compensated based on a difference between the first error component and the second error component. The forward link error may include a timing synchronization error between the access terminal and an access point as well as a frequency synchronization error between a forward link frequency and a baseband reference frequency.

Abstract translation: 提供了一种用于补偿接入终端的时钟漂移误差和移动误差的方法。 获得可归因于至少第一误差（例如，时钟漂移误差）分量和第二误差（例如，运动误差）分量的前向链路误差。 基于获得的前向链路误差来估计第一误差分量和第二误差分量。 基于第一误差分量和第二误差分量的组合来补偿接入终端的接收时钟。 基于第一误差分量和第二误差分量之间的差异来补偿接入终端的传输时钟。 前向链路错误可能包括接入终端与接入点之间的定时同步误差以及正向链路频率与基带参考频率之间的频率同步误差。