公开(公告)号：US20240340049A1

公开(公告)日：2024-10-10

申请号：US18264870

申请日：2021-04-09

Applicant: QUALCOMM Incorporated

Inventor： Rui Hu ,  Liangming Wu ,  Yu Zhang ,  Chenxi Hao ,  Min Huang ,  Qiaoyu Li ,  Wei Xi ,  Kangqi Liu ,  Chao Wei ,  Hao Xu

IPC: H04B7/06

CPC classification number: H04B7/061

Abstract: Aspects of the disclosure relate to the generation of channel state reports and precoding a wireless transmission based on frequency division duplex (FDD) reciprocity. A base station (B S) uses at least two precoders to transmit signals to A user equipment (UE). The UE generates a set of channel state reports, in which the UE transmits a first set of channel coefficients using a first timing, a set of port attributes using a second timing, and a second set of channel coefficients using a third timing. The first set of channel coefficients correspond to a first precoded portion of the wireless transmission, and the set of port attributes and the second set of channel coefficients correspond to a second portion of the wireless transmission. The BS modifies at least one of the precoders based on the channel state reports. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US12101151B2

公开(公告)日：2024-09-24

申请号：US17310748

申请日：2020-02-22

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0417

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/0695

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency compression. A method that can be performed by a user equipment (UE) includes receiving a CSI report configuration. The CSI report configuration configures the UE for reporting precoding matrix information including, for each layer, a plurality of selected beams L, a plurality of frequency domain compression bases F for the L beams, and a subset of linear combination coefficients associated with the frequency domain compression bases and beams. The UE can determine a number of coefficients to report for a higher rank based on a configured maximum number of coefficients to report for a lower rank.

公开(公告)号：US12088383B2

公开(公告)日：2024-09-10

申请号：US17276765

申请日：2018-10-16

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Bo Chen ,  Ruifeng Ma ,  Pavan Kumar Vitthaladevuni ,  Wanshi Chen ,  Qiaoyu Li ,  Liangming Wu

IPC: H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0639 ,  H04B7/0456 ,  H04L5/0051 ,  H04L25/0226

Abstract: Certain aspects of the present disclosure provide techniques for uplink sounding reference signal (SRS) transmission with precoding. A method for wireless communication by a user equipment (UE) includes receiving a SRS configuration that configures one or more SRS resource sets, each resource set including one or more SRS resources, each SRS resource comprising one or more SRS ports. The UE receives a set of precoders via an indicator, the set of precoders including a precoder associated with each SRS resource and determines one or more precoders to apply for one or more SRS transmissions via one or more of the SRS resources.

公开(公告)号：US12069699B2

公开(公告)日：2024-08-20

申请号：US18067500

申请日：2022-12-16

Applicant: QUALCOMM Incorporated

Inventor： Liangming Wu ,  Kangqi Liu ,  Changlong Xu ,  Jian Li ,  Hao Xu

IPC: H04L1/02 ,  H04B7/0413 ,  H04L1/16 ,  H04W72/23 ,  H04W72/30

CPC classification number: H04W72/30 ,  H04B7/0413 ,  H04L1/16 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an encoded transmission via a broadcast to multiple user equipment (UE). Subsequently, the multiple UEs may transmit assistance information to the base station based on attempting to decode the broadcasted encoded transmission. If the decoding is unsuccessful for at least one UE, the base station may then transmit an additional encoded transmission via a unicast or multicast message to the UEs that were unsuccessful. Additionally, the base station may transmit configuration information for the multiple UEs to receive the encoded transmissions and to transmit the assistance information. For example, the configuration information may include portion information for how long the encoded transmission is transmitted via the broadcast, via the unicast, when to transmit the assistance information, etc. In some cases, the configuration information may be based on UE metrics of the multiple UEs.

公开(公告)号：US12063653B2

公开(公告)日：2024-08-13

申请号：US17596360

申请日：2019-07-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/21 ,  H04L5/14 ,  H04W72/23

CPC classification number: H04W72/21 ,  H04L5/14 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for an uplink control channel, wherein the configuration information includes at least one of: a first resource identifier associated with a non-full-duplex (non-FD) zone, or a second resource identifier associated with a full-duplex (FD) zone. The UE may transmit uplink control information (UCI) on the uplink control channel in at least one of the non-FD zone or the FD zone in accordance with the configuration information. Numerous other aspects are provided.

公开(公告)号：US12047142B2

公开(公告)日：2024-07-23

申请号：US17425018

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0417

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/0658

Abstract: Certain aspects provide techniques for precoder matrix quantization for compressed channel state information (CSI) feedback. A method for wireless communications by a user equipment (UE) includes receiving a CSI report configuration for frequency domain compressed precoder matrix feedback. The CSI report configuration configures the UE to report, for a plurality of selected beams at a plurality of time domain taps, a frequency domain compression basis vector and a plurality of linear combination coefficients associated with the frequency domain compression. For each of the beams, the UE groups the time domain taps into at least first and second groups. The groups each can have zero, one, or more than one time domain taps. The UE quantizes the corresponding linear combination coefficients and/or frequency domain compression basis vectors based on the grouping.

公开(公告)号：US12041474B2

公开(公告)日：2024-07-16

申请号：US17309757

申请日：2020-01-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L5/0057

Abstract: Aspects of the present disclosure relate to wireless communication. In some aspects, a user equipment may determine at least one of: a first number of coefficients to be included in a first set of coefficients in a transfer domain that characterize compressed channel state information (CSI) for a first layer, or a first quantization scheme to be used to interpret the first set of coefficients. The UE may determine at least one of: a second number of coefficients to be included in a second set of coefficients in the transfer domain that characterize the compressed CSI for a second layer, or a second quantization scheme to be used to interpret the second set of coefficients. The UE may transmit a report that identifies the first set of coefficients and the second set of coefficients based at least in part on the determination(s). Other aspects are provided.

公开(公告)号：US12021585B2

公开(公告)日：2024-06-25

申请号：US18057617

申请日：2022-11-21

Applicant: QUALCOMM Incorporated

Inventor： Min Huang ,  Chao Wei ,  Chenxi Hao ,  Liangming Wu ,  Qiaoyu Li

IPC: H04L23/02 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/061 ,  H04B7/0623 ,  H04B7/0695

Abstract: Methods, systems, and devices for wireless communications are described that provide for channel state information (CSI) feedback for multiple discrete Fourier transform (DFT) beams on multiple transmission layers. A user equipment (UE) may report a total number of non-zero power DFT beams across all of the transmission layers. The UE may be configured with a total number of leading beams (Ktotal) across all of the transmission layers for which to provide high quantization feedback. When the total number of non-zero DFT beams across all the transmission layers exceeds the configured total number of leading beams across all the transmission layers, the UE may report high-resolution quantization feedback for Ktotal non-zero power precoding coefficients having the highest amplitude coefficients, and may report low-resolution quantization feedback for the remaining non-zero power precoding coefficients. A base station may receive the CSI feedback to determine a precoding matrix.

公开(公告)号：US12004180B2

公开(公告)日：2024-06-04

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: H04W72/23 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04B7/0639 ,  H04L5/0048 ,  H04L5/0091 ,  H04L5/0023

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：US11863479B2

公开(公告)日：2024-01-02

申请号：US17260183

申请日：2019-08-02

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Chao Wei ,  Yu Zhang ,  Liangming Wu ,  Qiaoyu Li ,  Peter Gaal ,  Wanshi Chen

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0053

Abstract: Certain aspects of the present disclosure provide techniques for signaling quasi-coloration (QCL) information for demodulation reference signals (DM-RS) associated with multiple transmission-reception points (multi-TRP). An example method generally includes generating quasi-colocation (QCL) information indicating a first QCL assumption for a first group of demodulation reference signal (DM-RS) ports and a second QCL assumption for a second group of DM-RS ports; and transmitting the QCL information to at least one user equipment (UE) for use in processing one or more transmission associated with at least one of the first group of DM-RS ports and the second group of DM-RS ports.