公开(公告)号：US12170634B2

公开(公告)日：2024-12-17

申请号：US17435635

申请日：2019-03-11

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Yu Zhang ,  Liangming Wu ,  Hao Xu ,  Min Huang ,  Chenxi Hao ,  Chao Wei ,  Wanshi Chen

IPC: H04L5/00

Abstract: In conventional wireless communication systems, only a single transmit precoding matrix indicator (TPMI) with a single associated sounding reference signal (SRS) resource indicator (SRI) is configured/activated in downlink control signal (DCI) for retransmission of data. To enable better performance in retransmission, the UE may dynamically turn on/off/switch panels for retransmissions.

公开(公告)号：US12155437B2

公开(公告)日：2024-11-26

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: H04W24/10 ,  H04B7/06 ,  H04L5/00 ,  H04W24/02 ,  H04W72/23 ,  H04B7/0452

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：US12132549B2

公开(公告)日：2024-10-29

申请号：US17298913

申请日：2019-12-11

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Liangming Wu ,  Qiaoyu Li ,  Min Huang ,  Joseph Binamira Soriaga ,  Wanshi Chen

IPC: H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04W28/06

CPC classification number: H04B7/0658 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/066 ,  H04B7/0695 ,  H04L5/0037 ,  H04L5/0041 ,  H04W28/06

Abstract: Certain aspects of the present disclosure provide techniques for a basis report for compressed channel state information (CSI) feedback with a non-contiguous subband configuration. A method for wireless communication by a user equipment (UE) includes receiving a CSI report configuration configuring the UE for reporting precoding matrix information including, a plurality of selected beams, a frequency domain compression matrix for each of the beams at each of a plurality of taps in the time domain, and a subset of a plurality of linear combination coefficients associated with the frequency domain compression matrices and beams. The UE receives a configuration of non-contiguous frequency resources for CSI reporting. The UE may perform frequency domain compression of the precoding matrix information using a truncated frequency domain compression matrix or performing separate frequency domain compression of the precoding matrix information for each set of contiguous frequency resources.

公开(公告)号：US12126405B2

公开(公告)日：2024-10-22

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 ,  H04B7/0408 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0417 ,  H04B7/0408 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0695 ,  H04L1/0026

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：US12069643B2

公开(公告)日：2024-08-20

申请号：US17596065

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Chenxi Hao ,  Liangming Wu ,  Yu Zhang ,  Yuwei Ren ,  Changlong Xu ,  Min Huang ,  Hao Xu ,  Wanshi Chen

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/23

CPC classification number: H04W72/1263 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Aspects are provided which allow a user equipment (UE) to identify a low-bandwidth (low-BW) CORESET-0 and associated CSS based on reception bandwidth of the UE. The base station may configure different frequency and time-domain resources of the low-BW CORESET in order to optimize resource utilization of the low-BW CORESET-0, and the low-tier UE may identify these resources of CORESET-0 and CSS from the system configuration information received in a master information block (MIB). As a result, low tier UEs may operate in a same cell as legacy UEs without the need for the base station to transmit additional signaling to either legacy UEs or lower tier UEs for the UEs to receive their respective CORESET-0's and identify a physical downlink channel (PDCCH).

公开(公告)号：US12047995B2

公开(公告)日：2024-07-23

申请号：US17593823

申请日：2020-04-21

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Chao Wei ,  Qiaoyu Li ,  Liangming Wu

IPC: H04W72/04 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/542 ,  H04W72/563

CPC classification number: H04W72/563 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/542

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. A method that can be performed by a user equipment (UE) includes determining the size of the intermediate set based on one or more parameters included in the CSI report configuration, determining one or more FD bases for each layer based on the intermediate set, wherein the one or more FD bases are characterized by an M value indicative of a number of the one or more FD bases and based on the CSI report configuration, and reporting the one or more FD bases for each layer based on the size of the intermediate set.

公开(公告)号：US12047989B2

公开(公告)日：2024-07-23

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: H04W72/542 ,  H04B7/0417 ,  H04B7/0456 ,  H04W72/21

CPC classification number: H04W72/542 ,  H04B7/0417 ,  H04B7/0486 ,  H04W72/21

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：US12015467B2

公开(公告)日：2024-06-18

申请号：US17299250

申请日：2019-12-12

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Liangming Wu ,  Qiaoyu Li ,  Joseph Binamira Soriaga ,  Peter Gaal ,  Wanshi Chen

IPC: H04B7/06

CPC classification number: H04B7/0663 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639

Abstract: Certain aspects of the present disclosure provide techniques for a coefficients report for compressed channel state information (CSI) feedback. A method for wireless communication by a user equipment (UE) includes receiving a CSI report configuration configuring the UE for reporting precoding matrix information including, a plurality of selected beams L, a frequency domain compression matrix F for each of the L beams at each of a plurality of taps M in the time domain, and a subset of a plurality of linear combination coefficients associated with the frequency domain compression matrices and beams. The UE determines the coefficients based on a first evaluation that is, for each beam, an evaluation of the amplitude of the coefficients across the taps, and a second evaluation and a evaluation that is, for each tap, an evaluation of the amplitude of the linear combination coefficients across the beams. The UE reports the first and second evaluations.

公开(公告)号：US12009899B2

公开(公告)日：2024-06-11

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: H04B7/0417 ,  H04B7/06

CPC classification number: H04B7/0658 ,  H04B7/0626 ,  H04B7/063

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：US12009898B2

公开(公告)日：2024-06-11

申请号：US17288496

申请日：2019-10-30

Applicant: QUALCOMM Incorporated

Inventor： Liangming Wu ,  Chenxi Hao ,  Qiaoyu Li ,  Chao Wei ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Yu Zhang

IPC: H04B7/06 ,  H04B7/0408

CPC classification number: H04B7/0658 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0639

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