公开(公告)号：US20250088232A1

公开(公告)日：2025-03-13

申请号：US18728394

申请日：2022-04-02

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Rui HU ,  Wei XI ,  Taesang YOO ,  Hao XU

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for channel estimation based on transmission spatial information. An example method of wireless communication by a user equipment includes receiving an indication of transmission spatial information associated with a network entity; receiving a reference signal from the network entity based on the transmission spatial information; and transmitting, to the network entity, channel state information (CSI) based on the received reference signal and the transmission spatial information.

公开(公告)号：US20240380465A1

公开(公告)日：2024-11-14

申请号：US18692763

申请日：2021-11-04

Applicant: QUALCOMM Incorporated

Inventor： Hyojin LEE ,  Chenxi HAO ,  June NAMGOONG ,  Taesang YOO ,  Wei XI ,  Pavan Kumar VITTHALADEVUNI ,  Yu ZHANG ,  Hwan Joon KWON

IPC: H04B7/06 ,  H04B7/0456 ,  H04B17/309

Abstract: A method of wireless communication by a user equipment (UE), includes estimating a downlink channel to generate a channel estimate. The method also includes obtaining multiple precoding matrices, by a channel state information (CSI) module including a neural network encoder decoder pair, based on the channel estimate and multiple different multiple input multiple output (MIMO) ranks. The method further includes determining a best rank indicator based on the precoding matrices and spectral efficiency estimates for the different MIMO ranks. The method still further includes reporting, to a base station, the best rank indicator, a channel quality index (CQI), and CSI encoder output.

公开(公告)号：US20240348479A1

公开(公告)日：2024-10-17

申请号：US18683465

申请日：2021-10-29

Applicant: QUALCOMM Incorporated

Inventor： Rui HU ,  Chenxi HAO ,  Wei XI ,  Yu ZHANG ,  Taesang YOO ,  Yuwei REN ,  Hao XU

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L25/0254 ,  H04B7/0626 ,  H04L5/0053 ,  H04L25/0224 ,  H04L27/2613

Abstract: A method for wireless communication by a user equipment (UE), includes receiving, from a base station, a reference signal (RS) on a set of resource elements (REs), the RS having been multiplexed onto the set of REs based on a non-orthogonal cover code, and a number of REs in the set of REs being less than a number of ports associated with the RS. The method further includes estimating, at the UE via a channel estimation neural network, a channel based on receiving the RS. The method still further includes transmitting, to the base station, a feedback report associated with the estimated channel based on receiving the RS.

公开(公告)号：US20240230828A9

公开(公告)日：2024-07-11

申请号：US18047946

申请日：2022-10-19

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Srinivas YERRAMALLI ,  Yun CHEN ,  Rajat PRAKASH ,  Taesang YOO

IPC: G01S5/02

CPC classification number: G01S5/02525 ,  G01S5/0264

Abstract: In an aspect, a method performed by a network node includes obtaining a first plurality of radio frequency fingerprint positioning (RFFP) measurements corresponding to a plurality of known displacements between positions of a user equipment (UE); and training a positioning model to provide a position estimate of the UE, wherein the training of the positioning model is at least based on the first plurality of RFFP measurements and the known displacements between the positions of the UE corresponding to the first plurality of RFFP measurements.

公开(公告)号：US20240107356A1

公开(公告)日：2024-03-28

申请号：US18450292

申请日：2023-08-15

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Taesang YOO ,  Mohammed Ali Mohammed HIRZALLAH ,  Xiaoxia ZHANG

IPC: H04W24/10 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L5/0048

Abstract: Disclosed are techniques for communication. In an aspect, a wireless node receives a configuration associated with one or more reference signal for positioning (RS-P) resources from a position estimation entity. The wireless node performs measurement(s) of a set of RS-P resources, and derives measurement information associated with a first virtual instance of the one or more RS-P resources based on the measurement(s). The wireless node transmits a measurement report comprising the measurement information to the position estimation entity.

公开(公告)号：US20240049015A1

公开(公告)日：2024-02-08

申请号：US18257009

申请日：2021-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Liangming WU ,  Hao XU ,  Rui HU ,  Chenxi HAO ,  Taesang YOO

IPC: H04W24/08 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04W24/10 ,  H04L5/0057

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first indication of a first number of antenna ports for which the UE is to report channel state information (CSI), and a second indication of a second number of antenna ports on which the UE is to measure CSI reference signals (CSI-RSs). The second number may be less than the first number. The UE may receive an indication of one or more antenna port parameters, where each may be associated with one of the first number of antenna ports or the second number of antenna ports. The UE may determine the CSI for the first number of antenna ports using the one or more antenna port parameters and measurements made by the UE on the second number of ports, and may transmit a report including the CSI for the first number of ports.

公开(公告)号：US20240048945A1

公开(公告)日：2024-02-08

申请号：US18489617

申请日：2023-10-18

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI ,  Taesang YOO ,  Naga BHUSHAN ,  June NAMGOONG ,  Pavan Kumar VITTHALADEVUNI ,  Tingfang JI

IPC: H04W4/029 ,  H04W4/02 ,  H04W64/00 ,  H04W36/00 ,  G06N3/02 ,  H04W24/10

CPC classification number: H04W4/029 ,  H04W4/023 ,  H04W64/003 ,  H04W36/0085 ,  G06N3/02 ,  H04W24/10

Abstract: In an aspect, a UE obtains information (e.g., UE-specific information) associated with a set of triggering criteria (e.g., from a server, a serving network, e.g., in conjunction with or separate from a set of neural network functions) for a set of neural network functions, the set of neural network functions configured to facilitate positioning measurement feature processing at the UE, the set of neural network functions being generated dynamically based on machine-learning associated with one or more historical measurement procedures. The UE obtains positioning measurement data associated with a location of the UE, and processes the positioning measurement data into a respective set of positioning measurement features based at least in part upon the positioning measurement data and at least one neural network function from the set of neural network functions that is triggered by at least one triggering criterion from the set of triggering criteria.

公开(公告)号：US20230362038A1

公开(公告)日：2023-11-09

申请号：US18158885

申请日：2023-01-24

Applicant: QUALCOMM Incorporated

Inventor： Fabio Valerio MASSOLI ,  Arash BEHBOODI ,  Hamed PEZESHKI ,  Joseph Binamira SORIAGA ,  Taesang YOO ,  Tao LUO

IPC: H04L25/02 ,  G06N20/00

CPC classification number: H04L25/024 ,  G06N20/00

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for wireless channel estimation using machine learning. A sensing matrix is processed using a set of one or more layers of a machine learning model, based on a learned sparsifying dictionary, to generate a set of associated sparse vector representations. A channel estimation is determined based on output of a final layer of the set of one or more layers of the machine learning model.

公开(公告)号：US20230354248A1

公开(公告)日：2023-11-02

申请号：US18192937

申请日：2023-03-30

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Srinivas YERRAMALLI ,  Taesang YOO ,  Rajat PRAKASH

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

CPC classification number: H04W64/00 ,  H04L5/0051 ,  G01S5/02525

Abstract: In an aspect, a user equipment (UE) transmits an uplink reference signal for positioning (RS-P) to one or more transmission reception points (TRPs). The TRP(s) or an location management function (LMF) extracts features from one or more uplink radio frequency fingerprint (RFFPs) of the uplink RS-P by one or more network components via one or more network-based machine learning (ML) feature extraction models, and sends the extracted features to the UE for position estimation. Other aspects are directed to UE-based round-trip RFFP position estimation session of a UE. Other aspects are directed to network-based round-trip RFFP position estimation of a UE. The UE-based round-trip RFFP position estimation and the network-based round-trip RFFP position estimation may be based on an uplink RFFP (e.g., SRS) of an uplink reference signal for positioning (RS-P) and a downlink RFFP of a downlink RS-P (e.g., DL PRS)

公开(公告)号：US20230351157A1

公开(公告)日：2023-11-02

申请号：US18004867

申请日：2021-07-30

Applicant: QUALCOMM Incorporated

Inventor： June NAMGOONG ,  Taesang YOO ,  Naga BHUSHAN ,  Pavan Kumar VITTHALADEVUNI ,  Jay Kumar SUNDARARAJAN ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  Tingfang JI ,  Wanshi CHEN

IPC: G06N3/098 ,  G06N3/0455

CPC classification number: G06N3/0455 ,  G06N3/098

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a client may determine, using a first client autoencoder, a feature vector associated with one or more features associated with an environment of the client. The client may determine a latent vector using a second client autoencoder and based at least in part on the feature vector. The client may transmit the feature vector and the latent vector. Numerous other aspects are provided.