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：US20240313838A1

公开(公告)日：2024-09-19

申请号：US18546926

申请日：2021-04-30

Applicant: QUALCOMM INCORPORATED

Inventor： Liangming WU ,  Hao XU ,  Chenxi HAO ,  Qiaoyu LI ,  Rui HU ,  Kangqi LIU ,  Wei XI ,  Yu ZHANG

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0658

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support compression of channel information (e.g., channel feedback) in accordance with multiple compression schemes, from which a transmitting device may select for a channel reporting transmission. For example, a user equipment (UE) may be configured with multiple channel state information compression schemes, corresponding to different encoders or decoders, which may involve various machine learning or neural network techniques. The UE may select or otherwise determine which compression scheme to use for channel reporting in various scenarios, including a selection based on whether a compression scheme maintains relatively accurate reporting, or whether a more power-intensive or processor-intensive compression scheme is supported by an operating mode of the UE, among other selection criteria. The UE may indicate which compression scheme was selected by a transmitted indication included with or otherwise accompanying a channel reporting transmission.

公开(公告)号：US20230379915A1

公开(公告)日：2023-11-23

申请号：US17924615

申请日：2020-07-03

Applicant: QUALCOMM Incorporated

Inventor： Jing DAI ,  Chao WEI ,  Chenxi HAO ,  Qiaoyu LI ,  Min HUANG ,  Wei XI ,  Hao XU ,  Gokul SRIDHARAN ,  Hung Dinh LY ,  Enoch Shiao-Kuang LU

IPC: H04W72/21 ,  H04L1/00 ,  H04L1/1607 ,  H04W72/0446 ,  H04L1/1812

CPC classification number: H04W72/21 ,  H04L1/0073 ,  H04L1/1664 ,  H04W72/0446 ,  H04L1/1812

Abstract: The present disclosure relates to uplink control information (UCI) multiplexing for multi-slot physical uplink shared channel (PUSCH) with transport block size (TBS) scaling. Specifically, a user equipment (UE) may determine to transmit UCI on a multi-slot PUSCH transmission. The UE may further identify a number of UCI resource elements (REs) in at least one slot of the PUSCH transmission based at least on a scaling rate. The UE may further perform the PUSCH transmission including the UCI REs.

公开(公告)号：US20230318759A1

公开(公告)日：2023-10-05

申请号：US18014587

申请日：2020-08-14

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Chao WEI ,  Yi HUANG ,  Hao XU ,  Min HUANG ,  Qiaoyu LI ,  Jing DAI ,  Wei XI

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04L5/0012 ,  H04W72/0453

Abstract: Aspects of the present disclosure provide techniques for determining frequency hopping for physical uplink shared channel (PUSCH) repetitions sent using multiple frequency domain resource allocations (FDRAs). According to certain aspects, a user equipment (UE) determines at least first and second part frequency domain resource allocations (FDRAs) for a first physical uplink shared channel (PUSCH) transmission occasion, transmits a transport block (TB) via at least first and second parts of a physical uplink shared channel (PUSCH) on the first and second part FDRAs with first and second precoders during the first PUSCH transmission occasion, determines at least first and second part FDRAs for a second PUSCH transmission occasion based on a frequency hopping scheme, and transmits the same TB via first and second parts of the PUSCH on the determined first and second part FDRAs with first and second precoders during the second PUSCH transmission occasion.

公开(公告)号：US20250008513A1

公开(公告)日：2025-01-02

申请号：US18693029

申请日：2021-12-02

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/1273 ,  H04L25/02 ,  H04W72/542

Abstract: Aspects described herein relate to encoding, based on an estimated channel matrix of a reference signal received from a base station, channel state information (CSI) using a machine learning (ML)-based CSI encoder, transmitting, to the base station, an output of the ML-based CSI encoder and assistance information related to the estimated channel matrix, and receiving, from the base station, a scheduling grant for a downlink channel having at least one parameter that is based on the output of the ML-based CSI encoder and the assistance information. Other aspects relate to receiving the CSI encoder output and assistance information, and transmitting the scheduling grant.

公开(公告)号：US20240348293A1

公开(公告)日：2024-10-17

申请号：US18291709

申请日：2021-09-29

Applicant: QUALCOMM Incorporated

Inventor： Danlu ZHANG ,  Yu ZHANG ,  Peter GAAL ,  Min HUANG ,  Wei XI ,  Chao WEI ,  Hao XU ,  Vasanthan RAGHAVAN ,  Junyi LI

IPC: H04B7/0413 ,  H04B7/06

CPC classification number: H04B7/0413 ,  H04B7/0695

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver of a holographic multiple input multiple output (MIMO) communication may receive, using at least one receive antenna element, a plurality of reference signals associated with at least one transmit antenna element of a transmitter of the holographic MIMO communication. The receiver may communicate using two-dimensional beams or three-dimensional beams based at least in part on a determination of a beam format associated with the plurality of reference signals. Numerous other aspects are described.

公开(公告)号：US20240048325A1

公开(公告)日：2024-02-08

申请号：US18245853

申请日：2020-11-06

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Wei XI ,  Hao XU

IPC: H04L5/00 ,  H04W24/08

CPC classification number: H04L5/0051 ,  H04W24/08

Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for channel state information (CSI) reference signal (RS) resource aggregation.

公开(公告)号：US20230361821A1

公开(公告)日：2023-11-09

申请号：US18246025

申请日：2020-11-25

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG ,  Chenxi HAO ,  Kangqi LIU ,  Min HUANG ,  Rui HU ,  Hao XU ,  Wei XI

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0486 ,  H04B7/0645

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a channel state information (CSI) configuration indicating a first feedback reporting periodicity for a dominant, or strong, spatial layer and a second feedback reporting periodicity for a non-dominant, or weak, spatial layer. The UE may transmit a first CSI report for at least the dominant spatial layer according to the first feedback reporting periodicity. The UE may transmit a second CSI report for the non-dominant spatial layer according to the second feedback reporting periodicity. In some cases, for aperiodic reporting, the UE may be triggered by downlink control information to report CSI for the dominant spatial layer. In some cases, the CSI configuration may indicate different codebooks for the dominant and non-dominant spatial layers.