公开(公告)号：US20250132879A1

公开(公告)日：2025-04-24

申请号：US18694352

申请日：2021-12-01

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG

IPC: H04L5/00 ,  H04W72/044 ,  H04W72/232

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating a plurality of port arrangements for transmitting one or more sounding reference signals to the base station. The UE may select a port arrangement of the plurality of port arrangements based on a first quantity of ports available to the UE for transmitting the one or more sounding reference signals. The UE may transmit a first sounding reference signal using a second quantity of ports of the first quantity of ports based on the selected port arrangement. Further, the UE may transmit a second sounding reference signal using a third quantity of ports of the first quantity of ports based on the selected port arrangement.

公开(公告)号：US20250125928A1

公开(公告)日：2025-04-17

申请号：US18685474

申请日：2021-10-13

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Naga BHUSHAN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Renqiu WANG ,  Pinar SEN ,  Seyong PARK ,  Krishna Kiran MUKKAVILLI ,  Yu ZHANG ,  Tingfang JI

IPC: H04L5/00 ,  H04W24/10 ,  H04W72/0453 ,  H04W72/231

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sounding reference signal (SRS) management for a line-of-sight multiple-input multiple-output (LSM) mode. A receiving device may receive a configuration of a persistent or semi-persistent SRS resource set that configures a first number of SRS ports for a full spatial sounding mode. The receiving device may transmit a SRS on a partial sounding resource subset of the SRS resource set, the partial sounding resource subset corresponding to a partial sounding LSM mode. A transmitting device such as a base station may performing phase ramp interpolation for the partial sounding LSM mode to estimate a LSM channel between the base station and the first receiving device.

公开(公告)号：US20250119181A1

公开(公告)日：2025-04-10

申请号：US18293471

申请日：2021-10-01

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/04 ,  H04B7/06 ,  H04W72/1263

Abstract: An apparatus for wireless communication is provided. The apparatus may be a user equipment (UE). The apparatus receives a first number of repetitions of a signal transmission from a base station and receives a second number of repetitions of the signal transmission transmitted from a reconfigurable intelligent surface device. The apparatus decodes the signal transmission based at least in part on the first number of repetitions of the signal transmission from the base station and the second number of repetitions of the signal transmission transmitted from the reconfigurable intelligent surface device.

公开(公告)号：US20250080187A1

公开(公告)日：2025-03-06

申请号：US18580466

申请日：2021-09-09

Applicant: QUALCOMM Incorporated

Inventor： Hyojin LEE ,  Yu ZHANG ,  Hung Dinh LY ,  Hwan Joon KWON

IPC: H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a channel state information (CSI) reference signal (CSI-RS) to a user equipment (UE) using heterogenous antenna panels, where a first antenna panel used to transmit the CSI-RS may have a different number of antenna ports than a second antenna panel used to transmit the CSI-RS. The UE may generate a codebook to report CSI based on the heterogenous antenna panels. In some cases, the UE may report compressed CSI if the antenna panels are in close proximity together.

公开(公告)号：US20250055513A1

公开(公告)日：2025-02-13

申请号：US18721161

申请日：2022-02-25

Applicant: QUALCOMM Incorporated

Inventor： Danlu ZHANG ,  Meilong JIANG ,  Juergen CEZANNE ,  Yu ZHANG ,  Junyi LI ,  Ashwin SAMPATH

IPC: H04B7/0456 ,  H01Q21/20

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a first device may include a first circular antenna array including a first quantity of antenna subarrays. A second device may include a second circular antenna array including a second quantity of antenna arrays. Each antenna subarray may include one or more antenna elements. The first device may transmit one or more reference signals to the second device. The second device may transmit a feedback message to the first device based on the reference signals. The feedback message may include an indication of sets of beamforming weights or information for determining the sets of beamforming weights based on the second quantity of antenna subarrays being different than the first quantity of antenna subarrays. The first device may transmit one or more signals concurrently to the second device based on the sets of beamforming weights.

公开(公告)号：US20250055502A1

公开(公告)日：2025-02-13

申请号：US18719666

申请日：2022-02-21

Applicant: QUALCOMM Incorporated

Inventor： Saeid SAHRAEI ,  Krishna Kiran MUKKAVILLI ,  Yu ZHANG ,  Peter GAAL ,  Wanshi CHEN ,  Hung Dinh LY

IPC: H04B7/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, from a network entity at a control unit associated with a reconfigurable intelligent surface, a set of multiple reference signals via a set of multiple receive beams, acquiring, via a first antenna panel associated with the control unit, a first beam of the set of multiple receive beams, acquiring, via a second antenna panel associated with the control unit, a second beam of the set of multiple receive beams, determining reflection coefficients of the reconfigurable intelligent surface for communication with the network entity based on the acquiring of the first beam and the acquiring of the second beam, and communicating via the reconfigurable intelligent surface based on the reflection coefficients of the reconfigurable intelligent surface.

公开(公告)号：US20250030529A1

公开(公告)日：2025-01-23

申请号：US18356540

申请日：2023-07-21

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Hyojin LEE ,  Yu ZHANG ,  Yi HUANG

IPC: H04L5/22 ,  H04L5/14 ,  H04W72/1263 ,  H04W74/08

Abstract: Disclosed are techniques for sensing. In an aspect, a wireless node receives or determines a time-division duplex (TDD) configuration that configures a set of contiguous downlink symbols, a set of contiguous uplink symbols and a set of contiguous cell-specific flexible symbols that follows the set of contiguous downlink symbols and precedes the set of contiguous uplink symbols. The wireless node further performs a radio frequency for sensing (RF-S) operation during one or more flexible symbols of the set of contiguous cell-specific flexible symbols.

公开(公告)号：US20250015858A1

公开(公告)日：2025-01-09

申请号：US18707805

申请日：2022-01-21

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Arumugam CHENDAMARAI KANNAN ,  Yan ZHOU ,  Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Tianyang BAI ,  Yu ZHANG

IPC: H04B7/06 ,  H04W72/21

Abstract: Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE determines whether to deactivate a semi-persistent (SP) channel state information (CSI) report associated with a first CSI report setting that is linked with a CSI report associated with a second CSI report setting. The second CSI report setting has a longer reporting periodicity than the first CSI report setting. The UE deactivates the SP CSI report, when at least the CSI report associated with the second CSI report setting is active.

公开(公告)号：US20240430838A1

公开(公告)日：2024-12-26

申请号：US18338655

申请日：2023-06-21

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Hyojin LEE ,  Yu ZHANG ,  Naga BHUSHAN

IPC: H04W56/00 ,  H04W24/10

Abstract: A technique is performed at a user equipment (UE) for supporting one or more radio frequency (RF) sensing measurements. A reflected downlink signal is received, wherein the reflected downlink signal is transmitted as a downlink signal from a base station and reflected off of a target. An uplink signal is transmitted to be reflected off of the target and received by the base station as a reflected uplink signal. A UE receive-transmit (RX-TX) time difference is determined, representing a difference between a time at which the reflected downlink signal is received by the UE and a time at which the uplink signal is transmitted by the UE. A UE measured frequency offset is determined based on reception of the reflected downlink signal, the UE measured frequency offset comprising a Doppler shift component corresponding to a velocity of the target.

公开(公告)号：US20240413867A1

公开(公告)日：2024-12-12

申请号：US18695678

申请日：2021-11-18

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for reporting channel state information (CSI). According to certain aspects, a method for wireless communications by a user equipment (UE) generally includes generating channel state information (CSI) comprising a (at least one) fractional rank indication (RI) value for a set of candidate ranks, a first indication of a first layer or first singular vector, and a second indication of a second layer or second singular vector and transmitting the CSI to a network entity.