公开(公告)号：US20220014249A1

公开(公告)日：2022-01-13

申请号：US17424819

申请日：2020-01-23

Applicant: Chenxi HAO ,  Yu ZHANG ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG

IPC: H04B7/06 ,  H04B7/0417

Abstract: Certain aspects of the present disclosure provide techniques for channel quality indictor (CQI) reporting with precoding matrix indicator (PMI) frequency domain (FD) units. A user equipment (UE) may configured with a CSI reporting configuration. CQI and PMI may be configured with different FD unit sizes. The UE may determine which PMI FD units to use for calculating corresponding CQI FD units. PMI and CQI FD units may not be aligned. The UE may determine which PMI FD units to use for calculating CQI based on the alignment. PMI and CQI FD units may be configured using a separate bitmaps, a bitmap and ratio of the FD unit sizes, or a single bitmap. PMI and/or CQI FD units may start from a lowest FD unit index in the system bandwidth, or the lowest FD unit index within a configured bandwidth part (BWP).

公开(公告)号：US20210391910A1

公开(公告)日：2021-12-16

申请号：US17288496

申请日：2019-10-30

Applicant: Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Joseph Binamira SORIAGA ,  Yu ZHANG ,  QUALCOMM Incorporated

Inventor： Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Joseph Binamira SORIAGA ,  Yu ZHANG

IPC: H04B7/06 ,  H04B7/0408

Abstract: Certain aspects of the present disclosure provide techniques for reporting channel state information (CSI) with spatial and time domain compression.

公开(公告)号：US20210328644A1

公开(公告)日：2021-10-21

申请号：US17274412

申请日：2018-09-21

Applicant: Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Qiaoyu LI ,  Wanshi CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Qiaoyu LI ,  Wanshi CHEN ,  Peter GAAL

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

Abstract: Certain aspects of the present disclosure provide techniques for a channel state information (CSI) report configuration for a multiple transmission reception point (TRP) transmission, such as a non-coherent joint transmission (NCJT). A method by a base station (BS) includes providing a user equipment (UE) with a CSI report configuration. The CSI report configuration is associated with one or more CSI reference signal (RS) resources. Each CSI-RS resource comprising a set of ports or port groups. The BS signals the UE to enable the UE to send a CSI report including CSI for more than one CSI-RS resource or for a CSI-RS resource comprising more than one port group and receives a CSI report from the UE.

公开(公告)号：US20210320704A1

公开(公告)日：2021-10-14

申请号：US17268379

申请日：2018-09-14

Applicant: Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Qiaoyu LI ,  Wanshi CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Qiaoyu LI ,  Wanshi CHEN ,  Peter GAAL

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

Abstract: Certain aspects of the present disclosure provide techniques for a channel state information (CSI) report configuration with a codebook list, for example, for non-coherent joint transmission (NCJT). A method for wireless communication that can be performed by a user equipment (UE) includes receiving a CSI report configuration. The CSI report configuration is associated with one or more CSI reference signal (RS) resources. Each CSI-RS resource includes a set of ports or port groups. The UE receives a list of codebooks associated with the configuration. The UE determines at least one codebook, from the list of codebooks, to apply for one or more triggered CSI-RS resources.

公开(公告)号：US20210159953A1

公开(公告)日：2021-05-27

申请号：US16640150

申请日：2018-09-11

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/0456 ,  H04B7/06

Abstract: Aspects of the present disclosure relate to techniques for codebook subset restriction (CSR). In some cases, a user equipment (UE) receives, from a network entity, codebook subset restriction (CSR) information. The UE determines, based on the CSR information, a restricted beam set for a plurality of antenna panels, determines precoding matrix indicator (PMI) feedback for the antenna panels subject to restricted beam set, and provides the PMI feedback to the network entity.

公开(公告)号：US20210036756A1

公开(公告)日：2021-02-04

申请号：US16982983

申请日：2019-04-03

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

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

IPC: H04B7/06 ,  H04W28/06 ,  H04B7/0456

Abstract: Certain aspects of the present disclosure provide techniques for reducing overhead for channel state information (CSI). Certain aspects provide a method for wireless communication. The method generally includes receiving a channel state information reference signal (CSI-RS), determining one or more feedback components associated with a CSI feedback type based on the CSI-RS, identifying that a payload of the one or more feedback components is to be compressed, compressing the payload, and reporting the compressed payload.

公开(公告)号：US20200244425A1

公开(公告)日：2020-07-30

申请号：US16652614

申请日：2018-09-29

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Chao WEI ,  Yu ZHANG ,  Chenxi HAO

IPC: H04L5/00 ,  H04B7/0456 ,  H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for generating and encoding bits of CSI report. In some cases, a UE may determine a payload size for channel state information (CSI) reporting based, at least in part, on a supported rank, calculate a packet length for the CSI reporting based on the determined payload size, and encode the CSI for a selected CSI resource index (CRI), based on the payload size and the calculated packet length, to generate a coded packet.

公开(公告)号：US20200084787A1

公开(公告)日：2020-03-12

申请号：US16610989

申请日：2018-08-11

Applicant: Qualcomm Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG

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

Abstract: Methods, systems, and devices for wireless communication are described that provide for the utilization of multiple partial bands used in the transmission of one or more channel state information (CSI) reference signals (CSI-RSs). The partial bands may be non-consecutive in the frequency domain, time domain, or a combination thereof and each of which may be precoder using a different precoder configuration. The time intervals, cycling granularity, and number of ports may vary between partial bands. Using RSs transmitted via the multiple partial bands, a user equipment (UE) may determine a channel state parameter for each partial band, which may be used for channel feedback.

公开(公告)号：US20200059346A1

公开(公告)日：2020-02-20

申请号：US16478822

申请日：2017-02-16

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Weiliang ZENG ,  June NAMGOONG ,  Xiaoxia ZHANG ,  Alexandros MANOLAKOS ,  Yu ZHANG ,  Siddhartha MALLIK ,  Joseph Binamira SORIAGA

IPC: H04L5/10 ,  H04L5/00 ,  H04W76/27 ,  H04L1/00 ,  H04B7/0456

Abstract: A method for wireless communications, comprising: signaling, to a user equipment (UE), an indication of one of at least two rules regarding how quasi co-location (QCL) configured for the UE should be applied for one or more DMRS ports; and sending downlink transmission to the UE with the one or more DMRS ports; receiving signaling from a base station and processing signals received on one or more DMRS ports based on the indicated rule. Said method improves communications between access points and stations in a wireless network.

公开(公告)号：US20200045596A1

公开(公告)日：2020-02-06

申请号：US16469451

申请日：2018-01-26

Applicant: QUALCOMM Incorporated

Inventor： Huichun LIU ,  Xipeng ZHU ,  Gavin Bernard HORN ,  Ruiming ZHENG ,  Yu ZHANG ,  Chao WEI ,  Ozcan OZTURK ,  Jae Ho RYU ,  Jiming GUO ,  Peng CHENG

IPC: H04W36/00 ,  H04W36/08 ,  H04W72/04 ,  H04W76/27

Abstract: An apparatus for wireless communication, including a memory and at least one processor coupled to the memory. The at least one processor is configured to receive a pre-allocation resource for a target cell via a handover command and transmit a physical layer acknowledgment based on a target cell downlink packet. The at least one processor is also configured to receive an indication for a communication with the target cell in response to the physical layer acknowledgement and access the target cell using the pre-allocated resource based on the indication for the communication with the target cell.