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：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.

公开(公告)号：US20250080249A1

公开(公告)日：2025-03-06

申请号：US18293983

申请日：2021-10-07

Applicant: QUALCOMM Incorporated

Inventor： Saeid SAHRAEI ,  Yu ZHANG ,  Hung Dinh LY ,  Krishna Kiran MUKKAVILLI

IPC: H04B17/309 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiving user equipment (UE) may transmit a first measurement that is based at least in part on a first reference signal, from a base station, that is to be reflected via a passive device. The receiving UE may transmit a second measurement that is based at least in part on a second reference signal, from a transmitting UE, that is to be reflected via the passive device and a third reference signal from the transmitting UE. Numerous other aspects are described.

公开(公告)号：US20250080177A1

公开(公告)日：2025-03-06

申请号：US18949792

申请日：2024-11-15

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Yuwei REN ,  Liangming WU ,  Chenxi HAO ,  Wanshi CHEN ,  Hao XU

IPC: H04B7/0456 ,  H04L5/00 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described for enabling a network equipment to reduce interference for downlink (DL) transmissions to a first device by determining a transmit precoding matrix indicator (TPMI) for uplink (UL) transmissions transmitted by a second device based on feedback from the first device. The first device may determine a subset of possible TPMIs that the second device may use for UL transmissions for full-duplex communications. The first device may indicate the subset to the network equipment. Based on the subset indicated by the first device, the network equipment may determine a pairing of the first device and the second device for full-duplex communications. Additionally, the network equipment may determine a TPMI for the second device to use in UL transmissions and indicate the TPMI to the second device.

公开(公告)号：US20250070830A1

公开(公告)日：2025-02-27

申请号：US18454058

申请日：2023-08-22

Applicant: QUALCOMM Incorporated

Inventor： Tzu-Hsuan CHOU ,  Jing JIANG ,  Jing SUN ,  Yu ZHANG

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

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) transmits a signal in accordance with a shortened time domain precoding filter for multi-antenna precoding. In some examples, a UE may precode the signal in accordance with a subset of time domain precoding taps. The UE may select the subset of time domain precoding taps from a set of time domain precoding taps in accordance with an absolute value of each of the set of time domain precoding taps. The UE may transmit the signal in accordance with the precoding. In other examples, the UE may select a transmit channel shortener to apply to a channel. The UE may select the transmit channel shortener based on a channel energy of a shortened channel that is associated with the transmit channel shortener. The UE may transmit the signal via the shortened channel.

公开(公告)号：US20250047432A1

公开(公告)日：2025-02-06

申请号：US18363643

申请日：2023-08-01

Applicant: QUALCOMM Incorporated

Inventor： Hyojin LEE ,  Weimin DUAN ,  Yu ZHANG

IPC: H04L5/00 ,  H04W72/0446

Abstract: Aspects of the disclosure involve a technique for receiving signals for communication and sensing. The technique comprises receiving, at a communication device, one or more sensing signals within an air interface frame structure comprising a plurality of slots, each slot comprising a plurality of symbols. The one or more sensing signals occupy a first subset symbols in the plurality of symbols. The technique further comprises receiving, at the communication device, one or more communication signals occupying a second subset of symbols in the plurality of symbols. The one or more sensing signals comprise one or more sensing waveforms, each being associated with a duration aligned with one or more symbol boundaries. The one or more communication signals comprise one or more communication symbols, each being associated with a duration aligned with one or more symbol boundaries.

公开(公告)号：US20250030462A1

公开(公告)日：2025-01-23

申请号：US18714427

申请日：2022-03-01

Applicant: QUALCOMM Incorporated

Inventor： Danlu ZHANG ,  Juergen CEZANNE ,  Bilal SADIQ ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Meilong JIANG ,  Renqiu WANG ,  Tingfang JI ,  Yu ZHANG ,  Ashwin SAMPATH ,  Junyi LI

IPC: H04B7/0452 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may communicate with a second network node using a line-of-sight (LOS) multiple input multiple output (MIMO) configuration at a frequency. The first network node may communicate, based at least in part on a multi-user MIMO (MU MIMO) mode, with a third network node using the LOS MIMO configuration and at the frequency, wherein the MU MIMO mode corresponds to an antenna system configuration of the rectangular antenna array, wherein the antenna system configuration includes at least one of an antenna assignment scheme, an antenna amplitude configuration, or an antenna phase configuration. Numerous other aspects are described.

公开(公告)号：US20250024487A1

公开(公告)日：2025-01-16

申请号：US18779987

申请日：2024-07-22

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Lianming WU

IPC: H04W72/563 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/542

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. A method that can be performed by a user equipment (UE) includes determining the size of the intermediate set based on one or more parameters included in the CSI report configuration, determining one or more FD bases for each layer based on the intermediate set, wherein the one or more FD bases are characterized by an M value indicative of a number of the one or more FD bases and based on the CSI report configuration, and reporting the one or more FD bases for each layer based on the size of the intermediate set.

公开(公告)号：US20250023683A1

公开(公告)日：2025-01-16

申请号：US18780148

申请日：2024-07-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Wooseok NAM ,  Peter Pui Lok ANG ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may inform a base station of multiple transmission-antenna switching capabilities supported by the UE. The supported transmission-antenna switching capabilities may include a first transmission-antenna switching capability and a second transmission-antenna switching capability. The UE may receive a message that triggers the UE to switch from using a first configuration associated with the first transmission-antenna switching capability to using a second configuration associated with the second transmission-antenna switching capability. The UE may perform a sounding procedure using the second configuration associated with the second transmission-antenna switching capability based on receiving the message.

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.