公开(公告)号：US20230131045A1

公开(公告)日：2023-04-27

申请号：US17759868

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chenxi HAO ,  Liangming WU

IPC: H04B7/06 ,  H04B7/0456

Abstract: Wireless communications systems and methods related to CSI feedback are provided. A user equipment (UE) receives an indication of a restricted set of frequency domain (FD) beamforming components and one or more channel state information reference signals (CSI-RSs). The UE may transmit channel state information (CSI) report indicating a plurality of precoding coefficients based on the received one or more CSI-RSs and the restricted set of FD beamforming components.

公开(公告)号：US20220263552A1

公开(公告)日：2022-08-18

申请号：US17596541

申请日：2020-06-19

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. More particularly, aspects of the present disclosure provide for codebook subset restriction (CBSR) on per spatial domain (SD) basis amplitude.

公开(公告)号：US20220247467A1

公开(公告)日：2022-08-04

申请号：US17595106

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chao WEI ,  Yu ZHANG ,  Qiaoyu LI ,  Liangming WU

IPC: H04B7/06 ,  H04W24/02 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for a user equipment (UE) to determine channel state information (CSI) to feedback to a base station (BS) in a full-duplex wireless communications system while considering UE-to-UE interference and for the BS to configure the UE to provide the CSI to the BS. In an exemplary method, a UE receives, from a base station (BS) in a full-duplex communications system, a channel state information (CSI) report configuration including at least a first indicator of a first associated set of sounding reference signal (SRS) resources; and transmits to the BS a CSI report including CSI and zero or more second indicators of sets of measured SRS resources.

公开(公告)号：US20220140946A1

公开(公告)日：2022-05-05

申请号：US17310189

申请日：2019-01-23

Applicant: Kai CHEN ,  Changlong XU ,  Liangming WU ,  Jian LI ,  Jing JIANG ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Kai CHEN ,  Changlong XU ,  Liangming WU ,  Jian LI ,  Jing JIANG ,  Hao XU

IPC: H04L1/08

Abstract: Wireless communications systems and methods related to hybrid repeat request (HARQ) with rate splitting are provided. A first wireless communication device communicates, with a second wireless communication device, a first communication signal including a plurality of information bits. The first wireless communication device determines a number of bits in the plurality of information bits to be repeated in a second communication signal based on channel capacity information. The first wireless communication device communicates, with the second wireless communication device, the second communication signal including the plurality of information bits and a repetition of a subset of the plurality of information bits, where the subset of the plurality of information bits includes the determined number of bits.

公开(公告)号：US20220109481A1

公开(公告)日：2022-04-07

申请号：US17429488

申请日：2020-02-15

Applicant: Qualcomm Incorporated

Inventor： Bo CHEN ,  Yuwei REN ,  Liangming WU ,  Yu ZHANG ,  Ruifeng MA ,  Chenxi HAO ,  Renqiu WANG ,  Hao XU

IPC: H04B7/06 ,  H04B7/0456 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform channel state information (CSI) measurements on one or more reference signal transmissions received from a base station. Based on the CSI measurements, the UE may generate a CSI report, and the UE may transmit the CSI report to the base station. In some cases, the generated CSI report may include a first portion and a second portion. The first portion may indicate whether the second portion of the CSI report includes full-band CSI feedback or partial-band CSI feedback. The second portion may provide the CSI feedback for one or more identified sub-bands. In some cases, the second portion may include a sub-band index indicating the identified sub-bands. Additionally or alternatively, the second portion may include a bitmap indicating a correspondence between multiple CSI feedback values and multiple corresponding sub-band indexes.

公开(公告)号：US20220039107A1

公开(公告)日：2022-02-03

申请号：US17309580

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04B7/0417 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may perform channel state information (CSI) measurements on one or more reference signal transmissions from a base station; determine, based at least in part on the CSI measurements, a set of non-zero linear combination complex coefficients for weighting and co-phasing for a linear combination of a plurality of frequency domain basis vectors and a plurality of spatial domain basis vectors; and transmit a CSI feedback, wherein a first part of the CSI feedback includes at least an indication of a number of the set of non-zero linear combination complex coefficients with regard to all layers of a communication link between the UE and the base station. Numerous other aspects are provided.

公开(公告)号：US20220029685A1

公开(公告)日：2022-01-27

申请号：US17311773

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Liangming WU ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Hao XU

IPC: H04B7/06

Abstract: Configurations and feedback schemes for compressed channel state information (CSI) feedback are provided. A User Equipment (UE) determines a constraint on a total number of transfer domain coefficients to be reported for compressed Channel State Information (CSI) feedback by the UE for a plurality of beams identified for the feedback, wherein each transfer domain coefficient is associated with amplitude information and phase information. The UE selects from a transfer domain coefficient compression matrix, based on the constraint, a set of one or more transfer domain coefficients to report for each of the beams. The UE reports information indicating a number of selected transfer domain coefficients in the set of transfer domain coefficients for each beam and a location of each transfer domain coefficient within the transfer domain coefficient compression matrix and reports at least the amplitude and phase information for the selected coefficients.

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.