公开(公告)号：US20230247631A1

公开(公告)日：2023-08-03

申请号：US18003674

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/1273 ,  H04L5/00 ,  H04W24/08 ,  H04L1/1812

CPC classification number: H04W72/1273 ,  H04L5/0051 ,  H04L5/0057 ,  H04W24/08 ,  H04L1/1812

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for transmitting a channel state information (CSI) report from a user equipment (UE). The CSI report may be a UE initiated CSI report or may be based on a downlink grant. The UE may receive a downlink grant scheduling a physical downlink shared channel (PDSCH) and a demodulation reference signal (DMRS). The UE may determine to report a CSI in response to a measurement of a downlink measurement resource or in response to the downlink grant requesting the CSI. The UE may determine a reserved uplink resource on which to report the CSI. The UE may transmit a CSI report on the reserved uplink resource.

公开(公告)号：US20230224930A1

公开(公告)日：2023-07-13

申请号：US18000899

申请日：2020-07-29

Applicant: QUALCOMM INCORPORATED

Inventor： Min HUANG ,  Chao WEI ,  Chenxi HAO

IPC: H04W72/30 ,  H04W72/232

CPC classification number: H04W72/30 ,  H04W72/232

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a single downlink control information (DCI) to indicate two multicast physical downlink shared channels (PDSCHs) for UEs of different capabilities. With the single DCI, different UEs with different capabilities may each receive separate PDSCHs, but the base station may transmit a single downlink control channel to signal the single DCI. The DCI may contain information for each of the multicast PDSCHs, such as a modulation and coding scheme, a time-domain resource assignment, a frequency-domain resource assignment, an antenna ports configuration, etc. for each multicast PDSCH. Subsequently, each UE may receive corresponding multicast PDSCHs parameters from this DCI based on the UE type or capability and may monitor for and receive a corresponding PDSCH from the base station. Additionally, the base station may transmit an activation message for the UEs to receive the single DCI.

公开(公告)号：US20230209485A1

公开(公告)日：2023-06-29

申请号：US17997076

申请日：2020-06-30

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W56/00 ,  H04W72/23 ,  H04W72/1263

CPC classification number: H04W56/0015 ,  H04W72/23 ,  H04W72/1263

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit one or more synchronization signal blocks (SSBs), each SSB including a system information block (SIB), to one or more user equipments (UEs). A UE of the one or more UEs may select an SSB with a corresponding SSB index for receiving a SIB and subsequently a multicast transmission from the base station. The multicast transmission may include transmitting a multicast control channel, a multicast traffic channel, or both. The SIB may include one or more parameters for receiving the multicast transmission. The UE may identify one or more monitoring occasions for monitoring a physical downlink control channel for scheduling the multicast transmission based on the SSB index. The UE may receive the multicast transmission in accordance with the one or more parameters from the physical downlink control channel during the one or more monitoring occasions.

公开(公告)号：US20230208588A1

公开(公告)日：2023-06-29

申请号：US17769109

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 ,  H04W72/231 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/044

CPC classification number: H04L5/0051 ,  H04W72/02 ,  H04W72/046 ,  H04W72/231 ,  H04W72/0453

Abstract: Certain aspects of the present disclosure provide techniques for using subband precoding for uplink transmissions. In some cases, a UE may receive, from a network entity, information indicating one or more of sounding reference signal (SRS) ports selected by the network entity and associated linear combination coefficients, determine subband precoding based at least in part on the selected SRS ports and linear combination coefficient, and transmit a physical uplink shared channel (PUSCH) with the subband precoding.

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.