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.

公开(公告)号：US11849448B2

公开(公告)日：2023-12-19

申请号：US17272024

申请日：2019-09-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/1273 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04W72/23

Abstract: Certain aspects of the present disclosure provide techniques for indicating a preemption of resources impacting a joint transmission from multiple transmitting entities to a user equipment. The transmitting entities may be associated with a virtual cell ID or a demodulation reference signal (DMRS) port group ID.

公开(公告)号：US11804883B2

公开(公告)日：2023-10-31

申请号：US17429657

申请日：2020-02-06

Applicant: Qualcomm Incorporated

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

IPC: H04B7/0456 ,  H04B7/0404 ,  H04B7/0408 ,  H04L5/00 ,  H04W72/20

CPC classification number: H04B7/0456 ,  H04B7/0404 ,  H04B7/0408 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0091 ,  H04W72/20

Abstract: Methods, systems, devices, and apparatuses for wireless communications that support transmission diversity enhancement for uplink control channel are described. Generally, the described techniques provide for enhanced performance of an uplink control channel such as a physical uplink control channel (PUCCH) through the use of transmission diversity. In some cases, multiple input multiple output (MIMO) techniques may be supported for transmission of an uplink control channel for a given format suitable for transmission diversity enhancement. A resource block (RB) used in an uplink control channel transmission may contain a number of resource elements (REs) across one or more resource blocks. According to some aspects, a transmit diversity scheme may be employed at the RE level through application of different spatial precoders for different groups of REs of a given RB.

公开(公告)号：US20230328568A1

公开(公告)日：2023-10-12

申请号：US18043345

申请日：2020-09-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04W24/08

CPC classification number: H04W24/10 ,  H04W24/08

Abstract: Aspects of the disclosure relate to the generation of channel state reports. A base station transmits a reference signal over a plurality of ports. A user equipment (UE) receives the reference signal and measure amplitudes of the reference signal over a plurality of ports. A first subgroup of the plurality of ports and a second subgroup of the plurality of ports are determined. In embodiments, the port groupings may be determined by the base station, which transmits an identification of the groupings to the user equipment. Alternatively, the UE may determine the port groupings. After determining the port groupings, the UE separately quantizes and normalizes the measured amplitude values in each port grouping. The UE may also separately quantize and normalize the phase measurements in each port groups. The UE generates a channel state report based on the normalized and quantized amplitude and phase values.

公开(公告)号：US20230261729A1

公开(公告)日：2023-08-17

申请号：US18003576

申请日：2020-08-21

Applicant: QUALCOMM Incorporated

Inventor： Min Huang ,  Chao Wei ,  Qiaoyu Li ,  Jing Dai ,  Wei Xi ,  Chenxi Hao ,  Kangqi Liu ,  Hao Xu ,  Changlong Xu ,  Wanshi Chen

IPC: H04B7/08 ,  H04B7/06

CPC classification number: H04B7/0888 ,  H04B7/0626 ,  H04B7/0857

Abstract: Aspects of the disclosure relate to transmitting, from a user equipment (UE) to a base station, information indicative of a multicast session that the UE is interested in accessing; transmitting information indicating that a first beam of a plurality of beams is a preferred beam for receiving multicast data associated with the multicast session; receiving, from the base station, a list of at least one beam of the plurality of beams associated with the multicast session; and receiving, from the base station using a beam from the list, multicast data associated with the multicast session. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11690124B2

公开(公告)日：2023-06-27

申请号：US17266902

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Yu Zhang ,  Chenxi Hao ,  Hao Xu

IPC: H04W76/19 ,  H04B7/06 ,  H04L1/16 ,  H04L1/1607

CPC classification number: H04W76/19 ,  H04B7/0626 ,  H04L1/1607

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：US20230093589A1

公开(公告)日：2023-03-23

申请号：US17759605

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0456

Abstract: A method includes receiving, by a user equipment (UE) device, a joint transmission of channel state information (CSI) reference signals (CSI-RS) from a first transmission and reception point (TRP) associated with a wireless network and at least a second TRP associated with the wireless network. The method further includes determining a joint rank parameter associated with the joint transmission and accessing, based on the joint rank parameter, a rank-to-port mapping codebook to determine a port index parameter. The method further includes, after determining the port index parameter, communicating, by the UE device, with one or more of the first TRP or the second TRP. Other aspects and features are also claimed and described.