公开(公告)号：US11716231B1

公开(公告)日：2023-08-01

申请号：US17822057

申请日：2022-08-24

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Jun Ma ,  Huilin Xu ,  Qiang Wu ,  Lianghai Ji ,  Mehmet Izzet Gurelli ,  Karthik Anantha Swamy ,  Hyojin Lee

IPC: H04L27/26 ,  H04L5/00 ,  H04W8/22 ,  H04B7/185

CPC classification number: H04L27/26025 ,  H04L5/005 ,  H04L5/0007 ,  H04W8/22 ,  H04B7/18523

Abstract: In some implementations, a non-terrestrial network (NTN) platform may transmit radio frequency (RF) signals toward earth, the RF signals comprising an orthogonal frequency-division multiplexing (OFDM) waveform with a plurality of symbols including a JCS symbol and one or more non-JCS symbols, wherein: the RF signals are incident on an area of the earth defining a footprint, and a duration of a cyclic prefix (CP) of the JCS symbol is a function of a width of the footprint. The NTN platform may receive, at the NTN platform, one or more reflections of the JCS symbol.

公开(公告)号：US11539415B2

公开(公告)日：2022-12-27

申请号：US17064997

申请日：2020-10-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Alexandros Manolakos ,  Weimin Duan ,  Peter Pui Lok Ang

IPC: H04B7/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as a user equipment (UE), may determine a capability relating to an antenna configuration associated with channel state information reporting. The UE may transmit a message including an indication of the capability, and receive a channel state information reference signal using the antenna configuration. The UE may transmit, based on the channel state information reference signal, a channel state information report in accordance with the antenna configuration associated with the channel state information reporting.

公开(公告)号：US11533700B2

公开(公告)日：2022-12-20

申请号：US17218418

申请日：2021-03-31

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Hung Dinh Ly

IPC: H04W24/00 ,  H04W64/00 ,  H04B17/336 ,  H04B17/318 ,  H04B17/27

Abstract: Wireless positioning accuracy of a user equipment (UE) is impacted by locations of the transmit/receive points (TRPs) and UE for wireless positioning. To improve the accuracy of estimated locations, a geometric dilution of precision (GDOP) may be determined for different groups of candidate TRPs, with the GDOP indicating a potential positioning error associated with the group of candidate TRPs. A UE may determine GDOPs for different combinations of candidate TRPs. One or more devices of a wireless network (e.g., a location server and/or a UE for positioning) may select or exclude one or more candidate TRPs from being used for wireless positioning of a UE based on the determined GDOPs. Exclusion or selection of candidate TRPs for wireless positioning may also be based on quality measurements of PRSs (such as an RSRP or SNR) or a time duration associated with measuring the PRSs from the candidate TRPs to be selected.

公开(公告)号：US11438862B2

公开(公告)日：2022-09-06

申请号：US17307796

申请日：2021-05-04

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Gokul Sridharan ,  Jay Kumar Sundararajan ,  Hwan Joon Kwon ,  Wanshi Chen ,  Krishna Kiran Mukkavilli

IPC: H04W64/00 ,  H04L5/00 ,  H04W72/04 ,  H04W28/16

Abstract: In a positioning session for a user equipment (UE), one or more base stations may receive and derive positioning measurements from uplink (UL) transmission from the UE that include a physical resource block (PRB) interlaced waveform based on at least one of interlaced physical uplink control channel (PUCCH) resource blocks, interlaced physical uplink shared channel (PUSCH) RBs resource blocks, interlaced sounding reference signal (SRS), interlaced uplink (UL) positioning reference signal (PRS), or a combination thereof. The interlaced waveforms span a greater wavelength than if interlacing were not used, and an enhanced accuracy requirement for the positioning measurements based on the span may be used for the positioning measurements. The UL interlaced PRBs may be used for UL positioning measurements for combined downlink (DL) and UL positioning measurements. The base station may report the positioning measurements along with the channel used and enhanced accuracy requirements to a location server for positioning.

公开(公告)号：US20220187411A1

公开(公告)日：2022-06-16

申请号：US17688732

申请日：2022-03-07

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin Duan ,  Gokul Sridharan ,  Wanshi Chen

IPC: G01S5/00 ,  H04L5/00 ,  H04W72/04

Abstract: During positioning of a user equipment (UE), (DL) positioning reference signals (PRS) transmitted by one or more transmission reception point (TRP) in a wireless communication system may be preempted or punctured by higher priority transmissions, such as ultra-reliable low-latency traffic (URLLC). A PRS preemption indication (PI) may be provided to a UE identifying one or more TRPs affected by preemption. The PRS PI may further identify the time domain and frequency domain of the preempted DL PRS transmissions. The PRS PI may identify the time domain, e.g., based on a number of PRS symbols between two monitoring occasions, wherein only PRS symbols that contain positioning reference signals associated with the group of TRPs are counted. The PRS PI may identify the frequency domain by identifying at least one of four or more frequency sub-bands of the preempted DL PRS transmissions.

公开(公告)号：US20200374096A1

公开(公告)日：2020-11-26

申请号：US16874642

申请日：2020-05-14

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Muhammad Sayed Khairy Abdelghaffar ,  Joseph Binamira Soriaga

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04B7/01

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to estimate a signal-to-noise ratio for each antenna port associated with a reception of one or more tracking reference signals. The UE may receive one or more of multiple single-port tracking reference signals, a single multi-port tracking reference signal, or a tracking reference signal associated with multiple power ratios. The UE may be able to estimate a channel upon receiving a demodulation reference signal. The channel estimation may be based on the reception of one or more of multiple single-port tracking reference signals, the single multi-port tracking reference signal, or the tracking reference signal associated with multiple power ratios. The UE may communicate with the base station based on estimating the channel.

公开(公告)号：US12235378B2

公开(公告)日：2025-02-25

申请号：US17836777

申请日：2022-06-09

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Hyojin Lee ,  Seyong Park

IPC: G01S7/00 ,  G01S13/00 ,  G01S13/56

Abstract: Radio frequency (RF) sensing of a target object by a wireless network is supported by a sensing node and a network node using sensing assistance data. The sensing assistance data may include information for Doppler estimation from received RF signals. The information for Doppler estimation, for example, may include an indication of phase coherency of RF signals, such as phase coherence found in positioning reference signal (PRS) resources, resource sets, transmission reception points (TRPs), frequency layer or any combination thereof. The sensing assistance data may include an association of PRS resources and reference point objects (RPOs) so RF signals reflected from the RPOs may be excluded from the sensing measurements. The sensing assistance data may include beam pattern information for PRS resources for beam coordination for RF sensing.

公开(公告)号：US12235373B2

公开(公告)日：2025-02-25

申请号：US17758929

申请日：2020-12-21

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Krishna Kiran Mukkavilli

IPC: G01S5/02 ,  H04W24/10 ,  H04W64/00

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, over a wireless communication network operating in accordance with a first radio access technology (RAT), a configuration to provide at least one positioning state information (PSI) report, the first RAT associated with at least one first positioning technology, the configuration associated with at least one second RAT, at least one second positioning technology, or both to be used to estimate a location of the UE, obtains at least a first set of positioning measurements using the at least one second RAT, the at least one second positioning technology, or both, and transmits the at least one PSI report on physical resources allocated for a physical uplink or sidelink channel of the first RAT, the at least one PSI report including at least the first set of positioning measurements.

公开(公告)号：US12207273B2

公开(公告)日：2025-01-21

申请号：US17668933

申请日：2022-02-10

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Huilin Xu ,  Mohamad Sayed Hassan ,  Liangping Ma ,  Jun Ma ,  Qiang Wu ,  Mehmet Izzet Gurelli ,  Weimin Duan ,  Karthik Anantha Swamy

IPC: H04W72/23 ,  H04L1/08 ,  H04W72/0446

Abstract: Aspects described herein relate to receiving, from a network node, a first transmission for configuring a configured grant, wherein the configured grant allocates one or more resources associated with an uplink transmission process having a transmission process identifier, obtaining a first indication that the network node uses a fallback downlink control information (DCI) format, and modifying, based at least in part on obtaining the first indication and the transmission process identifier, the uplink transmission process. Other aspects relate to configuring a device for modifying the uplink transmission process, receiving uplink communications based on the modified uplink transmission process, and/or the like.

公开(公告)号：US12177145B2

公开(公告)日：2024-12-24

申请号：US17463859

申请日：2021-09-01

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.