公开(公告)号：US20200212972A1

公开(公告)日：2020-07-02

申请号：US16645894

申请日：2018-09-11

Applicant: Yu ZHANG ,  Chenxi HAO ,  Wanshi CHEN ,  Peter GAAL ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Chenxi HAO ,  Wanshi CHEN ,  Peter GAAL ,  Hao XU

IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/06

Abstract: Aspects of the present disclosure relate to techniques for non-codebook based UL transmission. In some cases, a UE may signal, to a network entity, capability information of the UE for non-codebook uplink transmissions. The UE may then receive, signaling, from the network entity, indicating a plurality of sounding reference signal (SRS) configurations based at least on the signaled capability information, wherein at least one configuration indicates at least one SRS resource and determine a plurality of precoding candidates, wherein each precoding candidate is associated with a configured SRS resource. The UE may then transmit the SRSs using the associated precoding candidates.

公开(公告)号：US20200052866A1

公开(公告)日：2020-02-13

申请号：US16343538

申请日：2017-11-03

Applicant: Alexandros Manokakos ,  Chao Wei ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Hao Xu ,  Wanshi Chen ,  QUALCOMM INCORPORATED

Inventor： Alexandros MANOLAKOS ,  Chao WEI ,  Pavan Kumar VITTHALADEVUNI ,  Yu ZHANG ,  Hao XU ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/06 ,  H04L25/02 ,  H04W72/12

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for a UE to flexibly indicate a preferred precoding resource block group (PRG) size to a base station (e.g., an eNB).

公开(公告)号：US20200052759A1

公开(公告)日：2020-02-13

申请号：US16336986

申请日：2016-09-30

Applicant: Yu ZHANG ,  Wanshi CHEN ,  Chao WEI ,  Hao XU ,  QUALCOMM INCORPORATED

Inventor： Yu ZHANG ,  Wanshi CHEN ,  Wei CHAO ,  Hao XU

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W80/08 ,  H04W76/30

Abstract: Certain aspects of the present disclosure provide techniques for dynamic switching of reference transmission schemes used by a UE for CSI measurement and reporting.

公开(公告)号：US20180278365A1

公开(公告)日：2018-09-27

申请号：US15781671

申请日：2015-12-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaohui LIU ,  Neng WANG ,  Yu ZHANG ,  Jilei HOU

IPC: H04L1/00 ,  H04L27/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/18 ,  H04L1/1841 ,  H04L1/1893 ,  H04L27/0012

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for flexible resource mapping and modulation and coding scheme (MCS) determination in wireless communication systems. According to certain aspects, a method for wireless communications that may be performed by a transmitter is provided. The method generally includes determining MCSs to use for each of multiple portions of a transport block and transmitting the portions of the transport block according to the determined MCSs to a wireless node. Flexible MCS and resource mapping determination may improve demodulation performance for code blocks that are far from pilots.

公开(公告)号：US20170310441A1

公开(公告)日：2017-10-26

申请号：US15513713

申请日：2015-09-30

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Yu ZHANG

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/04 ,  H04W72/04 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/1812 ,  H04W72/0413 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/444

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives RSs from a base station. The UE determines, based on the RSs, a second CSI indicator indicating a first precoding configuration of the base station optimized to at least one of improve signal power or reduce interference in an elevation dimension. The UE determines, based on the RSs, a second CSI indicator indicating a second precoding configuration of the base station optimized to at least one of improve the signal power or reduce interference in an azimuth dimension. The UE transmits, to the base station, a first CSI report including at least the first CSI indicator.

公开(公告)号：US20170164226A1

公开(公告)日：2017-06-08

申请号：US15313003

申请日：2014-05-22

Applicant: Chao WEI ,  Yu ZHANG ,  QUALCOMM INCORPORATED

Inventor： Chao WEI ,  Yu ZHANG

IPC: H04W24/10 ,  H04W72/08 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for performing periodic and aperiodic CSI reporting for MIMO operations. According to certain aspects, operations for performing periodic and aperiodic CSI reporting for MIMO generally includes configuring a user equipment (UE) that is capable of MIMO with different parameters for periodic and aperiodic channel state information (CSI) reporting, wherein the different parameters indicate at least one of what resources to measure or what in formation to report, and receiving periodic and aperiodic CSI reporting from the UE according to the configuration.

公开(公告)号：US20250167866A1

公开(公告)日：2025-05-22

申请号：US18834849

申请日：2022-04-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed ELSHAFIE ,  Hung Dinh LY ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG

IPC: H04B7/06 ,  H04B7/04

Abstract: Methods, systems, and devices for wireless communications are described that support multiple stages of beamforming for a reconfigurable intelligent surface (RIS). A network entity may configure a RIS controller and a user equipment (UE) with a multi-stage beamforming configuration for a RIS. The configuration may be associated with multiple stages of beamforming that include a first stage and one or more second stages that refine one or more characteristics of the first stage. The network entity may also transmit a message indicating a beam training procedure for one or more of the multiple stages, where the beam training procedure may include communicating reference signals between the network entity and the UE, via the RIS. The network entity and the UE may perform the beam training procedure, and based on a result of the beam training procedure the RIS controller may configure one or more beamforming matrices for the RIS.

公开(公告)号：US20250150134A1

公开(公告)日：2025-05-08

申请号：US18837806

申请日：2022-04-30

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yuwei REN ,  Taesang YOO ,  Hao XU ,  Yu ZHANG ,  Rui HU ,  Wei XI ,  Ruiming ZHENG ,  Eren BALEVI ,  June NAMGOONG ,  Pavan Kumar VITTHALADEVUNI

IPC: H04B7/06 ,  H04L25/02 ,  H04L41/14 ,  H04W24/10

Abstract: Aspects described herein relate to using machine learning (ML) models for performing channel state information (CSI) encoding or decoding, CSI-reference signal (RS) optimization, channel estimation, etc. The ML models can be trained by a user equipment (UE), separately by the UE and a network node (e.g., base station), or jointly by the UE and network node.

公开(公告)号：US20250142357A1

公开(公告)日：2025-05-01

申请号：US18837831

申请日：2022-05-03

Applicant: QUALCOMM Incorporated

Inventor： Danlu ZHANG ,  Min HUANG ,  Yu ZHANG ,  Wei XI ,  Hao XU

IPC: H04W16/28 ,  H04B7/06 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine a reference location associated with an image corresponding to a target area, wherein the target area is offset from the reference location. The network node may transmit a radio frequency signal, wherein the radio frequency signal is beamformed based at least in part on the reference location to provide the radio frequency signal to the target area. Numerous other aspects are described.

公开(公告)号：US20250125841A1

公开(公告)日：2025-04-17

申请号：US18688344

申请日：2021-11-01

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Yu ZHANG ,  Peter GAAL ,  Hyojin LEE

IPC: H04B7/0456 ,  H04W72/1268

Abstract: A UE receives DCI scheduling a PUSCH spanning multiple sub-bands, the DCI indicating a first precoder for a first resource grid of the PUSCH and a second precoder for a second resource grid of the PUSCH. The UE transmits the PUSCH with the first precoder at the first resource grid and with a third precoder at the second resource grid, the third precoder being based on a phase rotation of the second precoder. A base station transmits DCI scheduling a PUSCH spanning multiple sub-bands, the DCI indicating a first precoder for a first resource grid of the PUSCH and a second precoder for a second resource grid of the PUSCH. The base station receives the PUSCH with the first precoder at the first resource grid and with a third precoder at the second resource grid, the third precoder being based on a phase rotation of the second precoder.