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：US12034534B2

公开(公告)日：2024-07-09

申请号：US18187255

申请日：2023-03-21

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Jian Li ,  Chao Wei ,  Jing Jiang ,  Jilei Hou

IPC: H04L1/00 ,  G06F9/30 ,  H03M13/09 ,  H03M13/13 ,  H04B7/26 ,  H04W40/02

CPC classification number: H04L1/0058 ,  G06F9/30029 ,  H03M13/098 ,  H03M13/13 ,  H04B7/2668 ,  H04L1/0046 ,  H04L1/0052 ,  H04L1/0061 ,  H04L1/0063 ,  H04W40/02

Abstract: Methods, systems, and devices for wireless communication are described for dynamic frozen bits of polar codes for early termination and performance improvement. A wireless device may receive a signal comprising a codeword encoded using a polar code. The wireless device may perform decoding of the codeword including at least: parity check of a first subset of decoding paths for making a decision on early termination of decoding of the codeword based on dynamic frozen bits, and generating path metrics for a second subset of the decoding paths that each pass the parity check based on the dynamic frozen bits, and performing error detection on a bit sequence corresponding to one of the second subset of the decoding paths based at part on error detection bits and the generated path metrics. The wireless device may process the information bits based on a result of the decoding.

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：US11973702B2

公开(公告)日：2024-04-30

申请号：US17256878

申请日：2019-06-26

Applicant: Qualcomm Incorporated

Inventor： Chao Wei ,  Le Liu ,  Alberto Rico Alvarino ,  Wanshi Chen

IPC: H04W4/00 ,  H04L1/1607 ,  H04L5/00 ,  H04W4/70 ,  H04W4/80 ,  H04W68/00 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04L5/0012 ,  H04L1/1614 ,  H04W4/70 ,  H04W4/80 ,  H04W68/005 ,  H04W72/0453 ,  H04W72/23

Abstract: A user equipment (UE) (e.g., an enhanced machine type communication (EMTC) UE) may identify several narrowbands associated with eMTC protocol based on a system bandwidth of a New Radio (NR) carrier. A base station may transmit an indication of a set of valid narrowbands for eMTC (e.g., based on coexistence considerations between eMTC and NR) to the UE. The base station may further transmit a frequency hopping pattern to the UE (e.g., associated with narrowbands within the set of valid narrowbands), and transmit one or more downlink transmissions according to the frequency hopping pattern. Additionally or alternatively, a base station may identify a subcarrier offset and/or resource block offset between resources (e.g., a resource grid) used for eMTC protocol and resources used for NR. The base station may transmit a frequency alignment parameter to the UE, and the UE may align narrowbands for eMTC accordingly.

公开(公告)号：US11929958B2

公开(公告)日：2024-03-12

申请号：US17284315

申请日：2018-10-12

Applicant: QUALCOMM Incorporated

Inventor： Yuwei Ren ,  Chao Wei ,  Yiqing Cao ,  Huilin Xu ,  Yu Zhang ,  Hao Xu ,  Tingfang Ji

IPC: H04L5/00 ,  H04B17/345 ,  H04B17/382

CPC classification number: H04L5/0073 ,  H04B17/345 ,  H04B17/382 ,  H04L5/0048 ,  H04L5/0062 ,  H04L5/0091

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may detect interference, in a remote interference management (RIM) scenario, in a set of sub-bands of a plurality of sub-bands of a bandwidth portion. The base station may transmit, to identify the set of sub-bands in which interference is detected, a set of reference signals configured to indicate the set of sub-bands in which the interference is detected. Numerous other aspects are provided.

公开(公告)号：US20240031100A1

公开(公告)日：2024-01-25

申请号：US18256267

申请日：2021-02-19

Applicant: QUALCOMM INCORPORATED

Inventor： Chenxi Hao ,  Chao Wei ,  Hui Guo ,  Hao Xu ,  Yu Zhang ,  Min Huang

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0057

Abstract: Methods, systems, and devices for wireless communications are described. Techniques are described for a user equipment (UE) to trigger a sidelink channel state information (CSI) procedure without an associated data grant. In some cases, a CSI procedure may be triggered by sending a sequence on a specific resource. In some cases, a CSI procedure may be triggered by a sidelink control information (SCI) message which does not include a sidelink data grant. Techniques are described which avoid CSI reference signal (CSI-RS) resource collision. For example, CSI-RS resources may be selected based on channel sensing, UE identifiers, or a combination thereof. In some cases, UEs may be configured subsets of a CSI-RS resource pool for sending CSI-RS.

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：US11863268B2

公开(公告)日：2024-01-02

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 ,  H04B17/336 ,  H04L5/00 ,  H04B7/024

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B17/336 ,  H04L5/0051

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 om 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：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.