公开(公告)号：US20230345281A1

公开(公告)日：2023-10-26

申请号：US18042538

申请日：2020-09-07

Applicant: QUALCOMM INCORPORATED

Inventor： Huilin Xu ,  Peng Cheng ,  Yu Zhang ,  Changhwan Park ,  Chenxi Hao

IPC: H04W24/10 ,  H04L5/00 ,  H04W36/00

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W36/0088 ,  H04B7/0626

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a cell measurement supported by the UE, the cell measurement associated with the UE supporting channel state information measurements of a dormant secondary cell in a cell group. The UE may receive a downlink control information triggering channel state information reference signal measurements for a set of cells in the cell group, the set of cells comprising the dormant secondary cell. The UE may perform, based at least in part on the downlink control information, the channel state information reference signal measurements on one or more cells in the set of cells according to the cell measurement supported by the UE to identify channel state information for each of the one or more cells.

公开(公告)号：US20230328569A1

公开(公告)日：2023-10-12

申请号：US18044425

申请日：2020-10-06

Applicant: QUALCOMM INCORPORATED

Inventor： Mostafa Khoshnevisan ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Chenxi Hao ,  Wooseok Nam

IPC: H04W24/10 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L5/0035

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may receive a transmission from multiple transmission and reception points (TRPs) according to a communication scheme, such as a multi-TRP or single frequency network (SFN) communication scheme, in which the multiple TRPs may transmit associated reference signals based on applying different transmission configuration indicator (TCI) states. The UE may receive a control message indicating the communication scheme and, in some examples, one or more parameters that the UE is to include in a corresponding channel state information (CSI) reference signal (CSI-RS) report. The UE, based on receiving the control message, may monitor for the reference signals from the multiple TRPs and generate the CSI-RS report based on receiving the reference signals and based on the indicated communication scheme. Accordingly, the UE may transmit the generated CSI-RS report.

公开(公告)号：US20230275703A1

公开(公告)日：2023-08-31

申请号：US18003381

申请日：2021-08-26

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L1/1822 ,  H04L1/00 ,  H04W72/232 ,  H04W72/11

CPC classification number: H04L1/1822 ,  H04L1/0075 ,  H04W72/232 ,  H04W72/11

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink control information (DCI) comprising a grant scheduling a data transmission for the UE, the data transmission associated with a rateless coding scheme. The UE may determine to disable feedback information for the data transmission based at least in part on the rateless coding scheme and one or more of: the DCI, a resource associated with the DCI, or a semi-persistent scheduling configuration associated with the data transmission. The UE may perform or monitor for the data transmission according to the DCI and the rateless coding scheme. The UE may perform or monitor for the feedback information for the data transmission according to the determining.

公开(公告)号：US20230254086A1

公开(公告)日：2023-08-10

申请号：US18004540

申请日：2020-08-14

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Chao Wei ,  Fang Yuan ,  Liangming Wu ,  Wanshi Chen ,  Hao Xu

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0064 ,  H04L5/0057

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for transmitting a channel state information (CSI) report from a user equipment (UE). The CSI report may be a UE initiated CSI report or may be based on a downlink grant. The UE may determine to transmit the CSI report based on measurement using a physical downlink control channel (PDSCH) and/or a demodulation reference signal (DMRS). The UE may determine a reference resource for CSI feedback. The UE may calculate a channel quality indicator (CQI) based on the reference resource. The UE may transmit the CQI in the CSI report on an uplink resource.

公开(公告)号：US20230254029A1

公开(公告)日：2023-08-10

申请号：US17999673

申请日：2021-06-02

Applicant: QUALCOMM Incorporated

Inventor： Min Huang ,  Yu Zhang ,  Chao Wei

IPC: H04B7/06

CPC classification number: H04B7/0695 ,  H04B7/0626

Abstract: Aspects of the disclosure relate to user equipment (UE) -assisted beam broadening in a wireless communication system configured to employ beamforming. A UE may determine downlink channel characteristics by monitoring for, receiving, and measuring a suitable downlink reference signal. Based on the channel characteristics the UE may select a wide beam corresponding to a set of narrow beams. The UE may then transmit a report identifying the selected wide beam by indicating a direction of the selected wide beam and an angular width of the selected wide beam. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11716750B2

公开(公告)日：2023-08-01

申请号：US17263109

申请日：2019-08-08

Applicant: Qualcomm Incorporated

Inventor： Seyedkianoush Hosseini ,  Yi Huang ,  Yu Zhang ,  Wanshi Chen

IPC: H04W72/54 ,  H04W76/11 ,  H04W8/24 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/566

CPC classification number: H04W72/54 ,  H04W8/24 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/569 ,  H04W76/11

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of channel state processes scheduled to be performed. The UE may receive a channel state feedback request corresponding to another set of channel state processes. The combination of the set of channel state processes and the other set of channel state processes may be greater than an amount that the UE may process at a given time. The UE may determine a priority for the channel state processes either on an individual or group basis. The UE may determine channel state process (es) to drop based on the determined priorities, and may perform the remaining channel state processes. The UE may generate and transmit a channel state feedback report message based on the performed channel state processes.

公开(公告)号：US11689319B2

公开(公告)日：2023-06-27

申请号：US16614592

申请日：2018-04-20

Applicant: Qualcomm Incorporated

Inventor： Yu Zhang ,  Wanshi Chen

IPC: H04L1/06 ,  H04L5/00 ,  H04W72/23 ,  H04W72/53 ,  H04W80/02 ,  H04B7/06 ,  H04W76/27

CPC classification number: H04L1/0693 ,  H04L5/0051 ,  H04L5/0092 ,  H04L5/0094 ,  H04W72/23 ,  H04W72/53 ,  H04B7/06 ,  H04W76/27 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message indicating, for each or multiple partial bands, a set of possible channel state information reference signal (CSI-RS) configurations. The UE may further receive downlink control information (DCI) from a base station, which may indicate a set of downlink resource associated with a first partial band. The UE may select a first CSI-RS configuration from the set of possible CSI-RS configurations for the first partial band based on the DCI, and when the base station transmits CSI-RS, the UE may obtain CSI-RS measurements over the first partial band during the set of downlink resources using the selected first CSI-RS configuration.

公开(公告)号：US20230170963A1

公开(公告)日：2023-06-01

申请号：US18005939

申请日：2020-09-09

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04W72/23

CPC classification number: H04B7/0626 ,  H04W72/23

Abstract: Port selection codebook enhancements are disclosed for spatial and frequency domain density (FDD) reciprocity. A base station may generate and signal a channel state information (CSI) report configuration including configuration of multiple CSI-reference signal (CSI-RS) port groups, wherein each group includes one or more CSI-RS ports, and each group is associated with one or more codebook subset restrictions (CBSRs). Using the configured restrictions of the CBSRs, served user equipments (UEs) may determine linear combination coefficient feedback based on channel measurements of selected port groups and signals the feedback to the base station. Once the base station receives the feedback it may then determine a hybrid CSI-RS codebook using both the configured CSI-RS port groups and the linear combination coefficients. The base station may then transmit downlink data encoded with a precoding matrix selected from the codebook. Other aspects and features are also claimed and described.

公开(公告)号：US11659555B2

公开(公告)日：2023-05-23

申请号：US17042677

申请日：2018-04-06

Applicant: Qualcomm Incorporated

Inventor： Yi Huang ,  Yu Zhang ,  Peter Gaal ,  Wanshi Chen

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04L5/001 ,  H04W72/042 ,  H04L5/0057

Abstract: Methods, systems, and devices for wireless communications are described that support non-periodic channel state information (CSI) triggering and reporting in wireless communications. In cases where two or more CSI report requests trigger multiple CSI report transmissions in an same uplink slot, a user equipment (UE) may format at least a subset of the multiple CSI reports according to a formatting configuration for transmission of multiple CSI reports in a same uplink slot. The UE may use allocated resources in the uplink slot for each CSI report that are allocated by the base station in the corresponding CSI report request. In some cases, the UE may combine the multiple CSI reports, or parts thereof, into a combined CSI report that may be transmitted using allocated resources of one of the CSI report requests.

公开(公告)号：US11626961B2

公开(公告)日：2023-04-11

申请号：US17289531

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Peter Gaal ,  Wanshi Chen

IPC: H04L5/00 ,  H04W24/10

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for providing quasi-colocation (QCL) signaling for reference signals (RS) and channels across scenarios involving multiple cells, such as coordinated multipoint (CoMP) scenarios in which multiple transmit receive points (TRPs) or integrated access and backhaul (IAB) nodes each have their own cell ID.