公开(公告)号：US20220131589A1

公开(公告)日：2022-04-28

申请号：US17310444

申请日：2020-02-04

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, in a first part of two-part channel state information (CSI), a rank indication (RI) and an indication of one or more numbers of first transfer domain coefficients to be used to characterize compressed CSI for one or more layers; and transmit, in a second part of the two-part CSI, an indication of one or more numbers of second transfer domain coefficients to be used to characterize compressed CSI for one or more beams for the one or more layers. Numerous other aspects are provided.

公开(公告)号：US20220110147A1

公开(公告)日：2022-04-07

申请号：US17426556

申请日：2020-01-23

Applicant: QUALCOMM Incorporated

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

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), a first signaling communication that configures a plurality of transmit precoder matrix indicator (TPMI) and sounding reference signal (SRS) resource indicator (SRI) pairs. The plurality of TPMI and SRI pairs may be for transmitting respective physical uplink shared channel (PUSCH) communications to the BS. The UE may receive, from the BS, a second signaling communication that indicates an update to a TPMI and SRI pair of the plurality of TPMI and SRI pairs. The UE may transmit, to the BS, a PUSCH communication, of the respective PUSCH communications, based at least in part on the update to the TPMI and SRI pair. Numerous other aspects are provided.

公开(公告)号：US20220094400A1

公开(公告)日：2022-03-24

申请号：US17424097

申请日：2020-01-20

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Parisa CHERAGHI ,  Yu ZHANG ,  Lei XIAO ,  Peter GAAL ,  Wanshi CHEN ,  Alexei Yurievitch GOROKHOV

IPC: H04B7/0417 ,  H04B7/0456

Abstract: A user equipment (UE) may utilize frequency domain (FD) compression for reporting channel state information (CSI) including a precoding matrix indicator (PMI). The UE may receive a CSI configuration specifying a first set of configured FD units to be reported. The UE may determine a first number of FD units based on the first set of configured FD units. The UE may select a second number of FD units that is greater than or equal to the first number of FD units. The UE may calculate, for one or more layers, a PMI for a second set of FD units including a number of FD units equal to the second number of FD units. The UE may allocate, according to a mapping rule, a number of PMIs for the first set of FD units to a subset of the PMIs for the second set of FD units.

公开(公告)号：US20210384945A1

公开(公告)日：2021-12-09

申请号：US17309469

申请日：2019-12-12

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chenxi HAO ,  Liangming WU ,  Joseph Binamira SORIAGA ,  Wanshi CHEN ,  Peter GAAL

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, based at least in part on a codebook, a set of beams to feedback in a channel state information (CSI) feedback communication, and may identify one or more beam groups associated with the set of beams. The UE may select respective one or more transfer domain bases, from a plurality of transfer domain bases, for each beam group of the one or more beam groups, and may determine a plurality of values, for a plurality of bits, that represent beam group identification information associated with the one or more beam groups and transfer domain basis selection information associated with the respective one or more transfer domain bases. The may transmit, to a base station (BS), the plurality of bits in the CSI feedback communication. Numerous other aspects are provided.

公开(公告)号：US20210314043A1

公开(公告)日：2021-10-07

申请号：US17263864

申请日：2018-08-10

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Alexandros MANOLAKOS ,  Chao WEI ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL

IPC: H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04B17/336

Abstract: A method generally includes determining channel state information reference signal (CSI-RS) port groups associated with one or more non-zero power (NZP) CSI-RS resources for channel measurement (CM) or interference measurement (IM)(902); transmitting an indication of the CSI-RS port groups to at least one UE(904); generating quasi-colocation (QCL) information indicating QCL assumptions for the CSI-RS port groups(906); and transmitting the QCL information to the at least one UE(908).

公开(公告)号：US20210298109A1

公开(公告)日：2021-09-23

申请号：US17266902

申请日：2019-08-07

Applicant: Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Chenxi HAO ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Chenxi HAO ,  Hao XU

IPC: H04W76/19 ,  H04B7/06 ,  H04L1/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a beam failure recovery request (BFRQ) is to be transmitted, wherein the BFRQ is associated with a plurality of repetitions of a communication; and transmit the BFRQ using a particular configuration based at least in part on whether the UE has successfully decoded one or more of the plurality of repetitions of the communication. Numerous other aspects are provided.

公开(公告)号：US20210160104A1

公开(公告)日：2021-05-27

申请号：US16636531

申请日：2018-08-10

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

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

IPC: H04L25/02 ,  H04L5/00 ,  H04B7/0456 ,  H04W72/04

Abstract: Techniques and apparatus for configuring transmission rank and/or precoder(s) to support uplink non-codebook based transmission are provided. One technique includes receiving sounding reference signal (SRS) resource(s) from a user equipment (UE), where each SRS resource is associated with one or more precoded ports. At least one of a transmission rank or a set of precoders is determined based on the SRS resource(s). An indication of at least one of the SRS resource(s) is signaled to the UE. The UE uses the indication of the at least one of the SRS resource(s) to send an uplink transmission.

公开(公告)号：US20210036745A1

公开(公告)日：2021-02-04

申请号：US16964519

申请日：2019-01-25

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

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

IPC: H04B7/0456 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, configuration information indicating that the UE is to compress a precoding matrix indicator in connection with channel state information reporting, wherein the precoding matrix indicator is to be compressed based at least in part on a quantization dependency between transmission layers or an orthogonality relationship between the transmission layers, and wherein the configuration information is associated with a type II, higher rank codebook for multiple input multiple output configuration. The UE may transmit, to a base station (BS), the compressed precoding matrix indicator to the base station based at least in part on receiving the configuration information. The UE and BS may use a communication configuration based at least in part on a precoding matrix indicator recovered from the compressed precoding matrix indicator. Numerous other aspects are provided.

公开(公告)号：US20200295895A1

公开(公告)日：2020-09-17

申请号：US16650056

申请日：2018-09-28

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to rate matching for new radio (NR) physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH). In certain aspects, a method includes receiving a rate matching resource (RMR) configuration from a serving cell. The method also includes identifying one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in the serving cell or a neighboring cell. The method further includes mapping a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.

公开(公告)号：US20200235796A1

公开(公告)日：2020-07-23

申请号：US16650171

申请日：2018-09-29

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/0417

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for generating and reporting CSI.