公开(公告)号：US12207236B2

公开(公告)日：2025-01-21

申请号：US18181435

申请日：2023-03-09

Applicant: QUALCOMM Incorporated

Inventor： Marwen Zorgui ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Piyush Gupta ,  Rajat Prakash ,  Junyi Li ,  Xiaojie Wang ,  Mohammad Tarek Fahim

IPC: H04W72/02 ,  H04L5/00 ,  H04W24/10 ,  H04W72/51 ,  H04W92/18

Abstract: In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.

公开(公告)号：US12206465B2

公开(公告)日：2025-01-21

申请号：US17657920

申请日：2022-04-04

Applicant: QUALCOMM Incorporated

Inventor： Roohollah Amiri ,  Srinivas Yerramalli ,  Taesang Yoo ,  Mohammed Ali Mohammed Hirzallah ,  Marwen Zorgui ,  Mohammad Tarek Fahim ,  Rajat Prakash ,  Xiaoxia Zhang

IPC: H04B17/391 ,  H04B17/309 ,  H04W4/02 ,  H04W24/02 ,  H04W24/10 ,  H04W64/00

Abstract: Methods and apparatus for predicting wireless measurements based on virtual access points is described. In some embodiments, a location of a user equipment (UE) may be obtained, and given the location of the UE, an output may be generated using a machine learning model, the output including one or more predicted wireless measurements. The output may be indicative of a wireless channel in a multipath environment. In some variants, the machine learning model may have been trained by obtaining a training dataset including multipath components data and ground truth locations of a wireless device, and performing an optimization with respect to the multipath components data and the ground truth locations. In some implementations, a training output including a predicted multipath component may be produced during the training, and the optimization may include an iterative minimization of an error between at least the predicted multipath component and a labeled multipath component.

公开(公告)号：US12200683B2

公开(公告)日：2025-01-14

申请号：US18194962

申请日：2023-04-03

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Ahmed Kamel Sadek ,  Tamer Kadous

IPC: H04W72/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1822 ,  H04L5/00 ,  H04L27/26 ,  H04W72/12 ,  H04W72/1268 ,  H04W72/21 ,  H04W74/00 ,  H04W28/06 ,  H04W72/23 ,  H04W74/0808

Abstract: Techniques for autonomous uplink (AUL) transmissions are provided that allow for efficient use of shared radio frequency spectrum band resources. A user equipment (UE) may determine a duration of an AUL transmission and modify an uplink waveform or provide an indication to a base station of one or more channel resources that may be available for base station transmissions, in order to more fully utilize shared radio frequency spectrum band resources within a maximum channel occupancy time (MCOT). A base station may activate or deactivate AUL transmissions through downlink control information (DCI) transmitted to the UE. A UE and base station may exchange various other control information to provide relatively efficient autonomous uplink transmissions and use of the shared radio frequency spectrum band resources.

公开(公告)号：US12199897B2

公开(公告)日：2025-01-14

申请号：US16948155

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Zhifei Fan ,  Srinivas Yerramalli ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Wooseok Nam ,  Juan Montojo ,  Tao Luo

IPC: H04L5/00 ,  H04W48/16 ,  H04W56/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating a timing configuration for candidate positions of a discovery reference signal (DRS) window, wherein the DRS window is within an unlicensed millimeter wave (mmW) band, and wherein the timing configuration provides for repetition of a synchronization signal block (SSB) within the DRS window based at least in part on a wraparound scheme; and scan for the SSB in accordance with the timing configuration. Numerous other aspects are provided.

公开(公告)号：US12166706B2

公开(公告)日：2024-12-10

申请号：US17394242

申请日：2021-08-04

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tamer Kadous ,  Srinivas Yerramalli ,  Tao Luo

IPC: H04L5/00 ,  H04W72/23 ,  H04B7/06 ,  H04L25/02 ,  H04W72/566

Abstract: Methods, systems, and devices for wireless communications are described. In a wireless communications system, multiple transmission/reception points (TRPs) may perform a joint transmission to a user equipment (UE) such that the UE may rely on demodulation reference signals (DMRSs) from the TRPs for channel estimation and data demodulation to receive the joint transmission. When TRP transmissions are punctured, which may introduce reception errors at a receiving UE, one or more TRPs may transmit unique DMRSs such that each TRP transmits a DMRS that is unique to the transmitting TRP, transmit DMRSs that are unique to punctured resource elements (REs), or determine to refrain from transmitting on punctured REs. In some cases, TRPs may transmit preemption indications (PIs) to a UE, where the PIs may indicate punctured (e.g., or not utilized) REs to allow the UE to utilize a unique DMRS for channel estimation or to ignore the punctured REs.

公开(公告)号：US20240396681A1

公开(公告)日：2024-11-28

申请号：US18322739

申请日：2023-05-24

Applicant: QUALCOMM Incorporated

Inventor： Marwen Zorgui ,  Srinivas Yerramalli ,  Balwinderpal Sachdev

IPC: H04L5/00 ,  G01S5/00 ,  G01S5/02 ,  H04B7/06 ,  H04W64/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support reference signal resource reporting. In a first aspect, a method includes receiving a first reference signal and a second reference signal of a reference signal session. The first aspect also includes transmitting, based on the first and second reference signals, information that indicates a measurement value or a location associated with an antenna array. In a second aspect, a method includes transmitting, using a first antenna element of an antenna array, a first sensing reference signal, and transmitting, using a second antenna element of the antenna array, a second sensing reference signal of the reference signal session. The second aspect also includes transmitting information that indicates a first location of the first antenna element, a second location of the second antenna element, or an equivalent location. Other aspects and features are also claimed and described.

公开(公告)号：US12150131B2

公开(公告)日：2024-11-19

申请号：US17669942

申请日：2022-02-11

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo

IPC: H04W72/21 ,  H04L1/1829 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/542 ,  H04W16/14 ,  H04W24/10

Abstract: Uplink control channel transmission in a shared radio frequency spectrum band may be transmitted using different uplink resources UCI based on a format of uplink control information (UCI) to be transmitted in the uplink control channel transmission. Different time resources, frequency resources, or combinations thereof, for the transmission of UCI by a UE may be provided by a base station and selected by the UE based on a UCI format. The resources to be used for UCI transmission may semi-statically configured, or dynamically indicated to a UE. Uplink transmissions may be configured in interlaces of frequency resources, with each interlace having one or more segments, and a base station may configure different segments for transmission of different format UCI. In some cases, different subframes, or different component carriers, may be configured for different formats of UCI.

公开(公告)号：US20240314724A1

公开(公告)日：2024-09-19

申请号：US18555676

申请日：2022-04-28

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Mukesh Kumar ,  Srinivas Yerramalli ,  Weimin Duan ,  Kianoush Hosseini

IPC: H04W64/00 ,  H04L5/00 ,  H04W56/00 ,  H04W92/18

CPC classification number: H04W64/00 ,  H04L5/0051 ,  H04W56/0045 ,  H04W92/18

Abstract: This disclosure provides systems, methods, and devices for wireless communication that provide managing transmissions of sidelink positioning reference signals (PRS) with a timing advance offset (TA) from a sidelink node. In aspects, a sidelink node (e.g., a target user equipment (UE) or an assisting UE) may receive transmissions from a plurality of nodes (e.g., target UEs or assisting UEs). The sidelink node obtains at least one TA to be used by a transmitting node of the plurality of nodes for transmitting a sidelink PRS to the sidelink node (e.g., to advance the sidelink PRS transmission to the sidelink node with respect to the timing of the first transmission). The TA is an offset obtained by the sidelink node based on the receiving times of the transmissions from the plurality of nodes. The sidelink node may receive PRS transmissions from the plurality of nodes in a same symbol aligned within the same CP.

公开(公告)号：US12052632B2

公开(公告)日：2024-07-30

申请号：US17374694

申请日：2021-07-13

Applicant: QUALCOMM Incorporated

Inventor： Roohollah Amiri ,  Srinivas Yerramalli ,  Rajat Prakash ,  Taesang Yoo

IPC: H04W24/10 ,  G01S5/02 ,  G01S5/10 ,  H04W4/02

CPC classification number: H04W4/023 ,  G01S5/0218 ,  G01S5/0269 ,  G01S5/0284 ,  G01S5/10 ,  H04W4/025 ,  H04W24/10

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) determines a positioning measurement of a first multipath component of a radio frequency (RF) signal transmitted by a transmission-reception point (TRP), determines a first additional positioning measurement of a second multipath component of the RF signal, determines a second additional positioning measurement of a third multipath component of the RF signal, and transmits a measurement report to a location server, the measurement report including at least the positioning measurement, the first additional positioning measurement, the second additional positioning measurement, and one or more parameters associated with the first additional positioning measurement and the second additional positioning measurement.

公开(公告)号：US12004115B2

公开(公告)日：2024-06-04

申请号：US17648239

申请日：2022-01-18

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed Hirzallah ,  Srinivas Yerramalli ,  Rajat Prakash ,  Taesang Yoo ,  Xiaoxia Zhang ,  Roohollah Amiri ,  Marwen Zorgui

IPC: H04W64/00 ,  H04W72/20 ,  H04W72/51

CPC classification number: H04W64/00 ,  H04W72/20 ,  H04W72/51

Abstract: In an aspect, a first user equipment (UE) obtains one or more first radio frequency fingerprint (RFFP) measurements of one or more first downlink channels received at the first UE, one or more first sidelink channels received at the first UE, or both, and determines one or more locations of a target UE based on the one or more first RFFP measurements and a machine learning module, wherein the machine learning module is trained based on previously collected RFFP measurements of one or more downlink channels, RFFP measurements of one or more uplink channels, RFFP measurements of one or more sidelink channels, locations of one or more sidelink anchor UEs, locations of one or more base stations, or any combination thereof.