公开(公告)号：US20230156724A1

公开(公告)日：2023-05-18

申请号：US17916953

申请日：2020-05-08

Applicant: QUALCOMM INCORPORATED

Inventor： Kangqi LIU ,  Liangming WU ,  Chenxi HAO ,  Yu ZHANG ,  Min HUANG ,  Hao XU

IPC: H04W72/23 ,  H04B7/0456

CPC classification number: H04W72/23 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, from a base station, downlink control information indicating at least a portion of a frequency domain basis vector being applied by the base station for frequency domain precoding of a reference signal scheduled for transmission via a set of antenna ports, receiving, from the base station, the reference signal that is frequency domain precoded in accordance with the at least portion of the frequency domain basis vector via the set of antenna ports, and transmitting, to the base station, a report indicating an antenna port subset of the set of antenna ports and a precoding coefficient for each antenna port of the antenna port subset.

公开(公告)号：US20230155763A1

公开(公告)日：2023-05-18

申请号：US17767378

申请日：2019-11-01

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Qiaoyu LI ,  Chao WEI ,  Hao XU ,  Peter GAAL ,  Wanshi CHEN

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0053

Abstract: Certain aspects of the present disclosure provide techniques for using subband precoding for uplink transmissions. In some cases, a UE may transmit sounding reference signals (SRS) to a network entity, receive information indicating at least one of a set of one or more frequency domain (FD) bases and linear combination coefficients, determined based on the SRS transmission, determine subband precoding based at least in part on linear combinations of the FD bases based on the linear combination coefficients, and transmit a physical uplink shared channel (PUSCH) with the subband precoding.

公开(公告)号：US20230155653A1

公开(公告)日：2023-05-18

申请号：US17916781

申请日：2020-05-11

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Hao XU ,  Liangming WU ,  Kangqi LIU

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

CPC classification number: H04B7/0626 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration message from a base station, and the configuration message may include an indication of one or more partial bands for channel state information reporting. Each partial band of the one or more partial bands may be less than a system bandwidth and include a plurality of frequency domain units associated with a precoder. The UE may select one or more antenna ports for each partial band of the one or more partial bands based on the configuration message and calculate channel state information including a linear combination of the selected one or more antenna ports for each partial band. The UE may transmit the channel state information including an indication of the selected antenna ports and linear combination coefficients for each partial band of the one or more partial bands

公开(公告)号：US20230143457A1

公开(公告)日：2023-05-11

申请号：US17907654

申请日：2020-06-05

Applicant: QUALCOMM Incorporated

Inventor： Michael LEVITSKY ,  Alexandros MANOLAKOS ,  Peter GAAL ,  Chenxi HAO ,  Jacob PICK ,  Assaf TOUBOUL

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/0051 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may select, from a set of demodulation reference signal (DMRS) configurations, a recommended DMRS configuration for a downlink communication, the recommended DMRS configuration associated with a set of DMRS parameters; and transmit an indication of the recommended DMRS configuration. Numerous other aspects are provided.

公开(公告)号：US20230066978A1

公开(公告)日：2023-03-02

申请号：US17788996

申请日：2019-12-27

Applicant: Qiaoyu LI ,  Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Chao WEI ,  Hao XU ,  Wanshi CHEN ,  QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/06 ,  H04L25/03

Abstract: Certain aspects of the present disclosure provide techniques for using subband precoding for uplink transmissions. In some cases, a UE may transmit sounding reference signals (SRS) to a network entity, receive information indicating at least one of a set of one or more frequency domain (FD) bases and linear combination coefficients, determined based on the SRS transmission, determine subband precoding based at least in part on linear combinations of the FD bases based on the linear combination coefficients, and transmit a physical uplink shared channel (PUSCH) with the subband precoding.

公开(公告)号：US20230030275A1

公开(公告)日：2023-02-02

申请号：US17758295

申请日：2021-01-07

Applicant: QUALCOMM INCORPORATED

Inventor： Min HUANG ,  Chao WEI ,  Liangming WU ,  Chenxi HAO ,  Qiaoyu LI

IPC: H04L5/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. The methods, systems, and devices may enable a user equipment (UE) to receive a sounding reference signal (SRS) configuration message that indicates one or more first reference signals from a first node or one or more SRS transmission beams associated with the first node and one or more second reference signals from a second node. The UE may determine an SRS transmission beam for transmitting an SRS signal based on a procedure for determining SRS transmission beams and the one or more reference signals from the first and second nodes. The UE may transmit the SRS signal using the SRS transmission beam.

公开(公告)号：US20230009220A1

公开(公告)日：2023-01-12

申请号：US17780175

申请日：2019-11-29

Applicant: Qualcomm Incorporated

Inventor： Yiqing CAO ,  Peter GAAL ,  Chenxi HAO ,  Bo CHEN

IPC: H04W24/08 ,  H04W72/12 ,  H04W74/08 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, an indication of a monitoring window used by the base station to monitor for uplink transmissions from the UE. The UE may receive a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band. The UE may reconfigure, in response to the received control signal, a first transmit chain of the UE from a second component carrier in a second radio frequency spectrum band to the first component carrier in the first radio frequency spectrum band for the uplink transmission. The UE may transmit, based at least in part on the indicated monitoring window and using at least the reconfigured first transmit chain, the uplink transmission on the first component carrier using the scheduled uplink resources.

公开(公告)号：US20220386335A1

公开(公告)日：2022-12-01

申请号：US17755575

申请日：2020-02-11

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Yiqing CAO ,  Chenxi HAO ,  Yi HUANG ,  Bo CHEN

IPC: H04W72/12 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may group, into a common slot, a first plurality of consecutive uplink slots included in a first component carrier and a second plurality of consecutive uplink slots included in a second component carrier. The UE may determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink slots or the second plurality of consecutive uplink slots. The UE may transmit on the first component carrier or on the second component carrier in the common slot or determine whether to switch a transmit chain based at least in part on whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink slots or the second plurality of consecutive uplink slots. Numerous other aspects are provided.

公开(公告)号：US20220312471A1

公开(公告)日：2022-09-29

申请号：US17635324

申请日：2019-08-26

Applicant: Qualcomm Incorporated

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

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described in which a base station operating in full-duplex mode may provide for reception of one or more higher priority transmissions using at least partially overlapping time-frequency resources as used for transmission of lower priority communications. In order to mitigate self-interference at the base station, a transmission power used for the overlapping time-frequency resources may be reduced. The base station may provide an indication of a subset of resources that have a reduced transmission power, an amount of the power reduction for the subset of resources, or both.

公开(公告)号：US20220311492A1

公开(公告)日：2022-09-29

申请号：US17594856

申请日：2019-05-31

Applicant: QUALCOMM Incorporated

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

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a sounding reference signal (SRS) that indicates that the UE is configured with a quantity of receive elements that is greater relative to a quantity of transmit elements with which the UE is configured. The UE may receive, based at least in part on transmitting the SRS, a first channel state information (CSI) reference signal (CSI-RS) set and a second CSI-RS set. The UE may transmit a CSI report that is based at least in part on the first CSI-RS set and the second CSI-RS set. Numerous other aspects are provided.