公开(公告)号：US20210111847A1

公开(公告)日：2021-04-15

申请号：US17069850

申请日：2020-10-13

Applicant: QUALCOMM Incorporated

Inventor： Wei YANG ,  Weimin DUAN ,  Alexandros MANOLAKOS ,  Yi HUANG

IPC: H04L5/00 ,  H04W72/12

Abstract: A user equipment (UE) sends an indication supported combinations of sounding reference signal (SRS) resources, unsupported combinations of SRS resources, or compatible SRS resources to a base station. The base station selects one or more SRS resources for the UE from the SRS resources that are supported by the UE or are compatible for the UE. In some examples, the UE receives a configuration from the base station for multiple SRS resource sets. After configuring the UE with multiple SRS resource sets, the base station selects one of the SRS resources sets, and may indicate the selected SRS resource set to the UE. The UE transmits a physical uplink shared channel (PUSCH) to the base station using SRS resources from the selected SRS resource set.

公开(公告)号：US20210092558A1

公开(公告)日：2021-03-25

申请号：US16814829

申请日：2020-03-10

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Joseph Binamira SORIAGA ,  Jay Kumar SUNDARARAJAN ,  Gokul SRIDHARAN

IPC: H04W4/029 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: In an aspect, a UE estimates channel state(s) of channels(s) between the UE and network node(s) based on DL RS(s) for positioning that are scheduled and transmitted on DL resources from network node(s). The UE may apply TR filter(s) derived based on the estimated channel state(s) to a UL-RS for positioning. The UE may transmit the TR filtered UL-RS on UL resources which are associated with the DL resources of the DL-RS(s) and which are scheduled by the network node(s). The association between the UL resources and the DL resources may be indicated to the UE by the network node(s).

公开(公告)号：US20250119862A1

公开(公告)日：2025-04-10

申请号：US18480754

申请日：2023-10-04

Applicant: QUALCOMM Incorporated

Inventor： Marwen ZORGUI ,  Weimin DUAN ,  Preeti KUMARI ,  Srinivas YERRAMALLI

IPC: H04W64/00 ,  H04L5/00 ,  H04W8/22

Abstract: Disclosed are techniques for wireless signaling. In an aspect, a user equipment (UE) transmits, to a network component, an indication of a capability to estimate a carrier frequency offset (CFO) of the UE associated with radio frequency for sensing (RF-S) operations. In another aspect, the network component estimates the CFO of the UE (e.g., based on measurement information from the UE and/or wireless node(s)). In some designs, the network component further transmits, to the UE, the CFO of the UE (e.g., for CFO compensation associated with RF-S sensing operation(s)).

公开(公告)号：US20250105966A1

公开(公告)日：2025-03-27

申请号：US18970677

申请日：2024-12-05

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN

IPC: H04L5/00 ,  H04W72/21

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives, from one or more transmission-reception points (TRPs), one or more on-demand downlink positioning reference signals (DL-PRS), the one or more on-demand DL-PRS having one or more downlink transmission parameters, and transmits, to the one or more TRPs, one or more uplink positioning reference signals (UL-PRS), the one or more UL-PRS having one or more uplink transmission parameters, wherein values of the one or more uplink transmission parameters are the same as or within a threshold of values of the one or more downlink transmission parameters.

公开(公告)号：US20250080381A1

公开(公告)日：2025-03-06

申请号：US18241269

申请日：2023-09-01

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Hyojin LEE ,  Bala RAMASAMY

IPC: H04L25/02 ,  H04L25/03

Abstract: Techniques are provided for implementing time reversed reference signals for radio frequency (RF) sensing operations in a communication system. An example method for generating channel reciprocity information for radio frequency sensing operations includes receiving radio frequency sensing information from a sensing node, generating a channel reciprocity prediction based at least in part on the radio frequency sensing information and a channel reciprocity prediction model, and providing an indication for time reversal precoding to the sensing node based on the channel reciprocity prediction.

公开(公告)号：US20250080252A1

公开(公告)日：2025-03-06

申请号：US18459374

申请日：2023-08-31

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Kangqi LIU ,  Jing LEI ,  Tingfang JI

IPC: H04B17/318 ,  H04B17/336 ,  H04B17/345

Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives, from a network entity, a downlink wideband (DL WB) reference signal (RS) based on a frequency-modulated continuous wave (FMCW) signal; and report, based on the DL WB RS, a radio resource management (RRM) measurement. The RRM measurement may cover one or more sub-bands within one or more widebands of the FMCW signal.

公开(公告)号：US20250063552A1

公开(公告)日：2025-02-20

申请号：US18450349

申请日：2023-08-15

Applicant: QUALCOMM Incorporated

Inventor： Kangqi LIU ,  Weimin DUAN ,  Jing JIANG

IPC: H04W72/0453 ,  H04B17/309

Abstract: A method for wireless communication at a first wireless device and related apparatus are provided. In the method, the first wireless device communicates a first reference signal with a second wireless device based on a first frequency-modulated continuous wave (FMCW). The first wireless device further communicates a second reference signal with the second wireless device. The second reference signal is based on a second FMCW and has a second frequency bandwidth. The second frequency bandwidth is smaller than the first frequency bandwidth of the first reference signal, and the second reference signal has a frequency location based on the first reference signal. The first wireless device further communicates data with the second wireless device based on a channel estimation for a channel between the first wireless device and the second wireless device based on the second reference signal.

公开(公告)号：US20250056601A1

公开(公告)日：2025-02-13

申请号：US18717608

申请日：2022-12-20

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI

IPC: H04W74/0808 ,  H04B7/06 ,  H04W8/22 ,  H04W64/00

Abstract: A mobile device is disclosed. The mobile device may receive, from a network node, information indicative of a predetermined time delay to be utilized in connection with an RF sensing procedure utilizing uplink (UL) and downlink (DL) signals. The mobile device may receive an RF sensing reference signal (RS) transmitted by a base station. Responsive to the predetermined time delay elapsing, the mobile device may transmit a corresponding RF sensing RS at a time corresponding to the predetermined time delay after a time at which the RF sensing RS was received, wherein a time at which the corresponding RF sensing RS is received and the predetermined time delay are usable to determine positioning information of the mobile device.

公开(公告)号：US20250024437A1

公开(公告)日：2025-01-16

申请号：US18715984

申请日：2022-09-29

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Hung Dinh LY ,  Alexandros MANOLAKOS

IPC: H04W72/0446 ,  G01S7/00 ,  G01S13/86 ,  H04L5/00 ,  H04W52/02

Abstract: Disclosed are techniques for wireless communication and positioning. In an aspect, a base station (BS) may determine a slot configuration that defines at least a portion of one or more slots configured for RF sensing. The BS may send the slot configuration to at least one other telecommunications device, e.g., to another BS if the RF sensing is bistatic radar. The BS may then perform RF sensing according to the slot configuration. In another aspect, a user equipment (UE) may receive a slot configuration that defines at least a portion of one or more slots configured for RF sensing. The UE may operate according to the slot configuration, e.g., the UE may go to low power or sleep mode while the base station is performing RF sensing, and may optionally wake up to receive downlink signals or to transmit uplink signals.

公开(公告)号：US20250016722A1

公开(公告)日：2025-01-09

申请号：US18712218

申请日：2022-10-28

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Danlu ZHANG

IPC: H04W64/00 ,  H04L5/00 ,  H04W24/10

Abstract: Different antenna components of a device cause different biases in calculating a location of a user equipment (UE) based on reference signals from another device (which may be sounding reference signals from the UE or positioning reference signals from a base station). A device is configured to use different subsets of antenna components to calculate a positioning measurement. With each of the antenna components associated with a bias in calculating the positioning measurement, each subset of antenna components is associated with a bias in calculating the positioning measurement. The device is configured to generate and report an angle error group (AEG) report that is associated with the positioning measurements calculated (such as an AEG report including positioning measurements and identifiers indicating the antenna components used). The AEG report is used by a location server to identify the antenna components to be used for UE positioning operations.