公开(公告)号：US11984955B2

公开(公告)日：2024-05-14

申请号：US17801505

申请日：2020-04-17

Applicant: QUALCOMM Incorporated

Inventor： Bo Chen ,  Pavan Kumar Vitthaladevuni ,  Taesang Yoo ,  Naga Bhushan ,  Jay Kumar Sundararajan ,  Ruifeng Ma ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Hao Xu ,  Tingfang Ji

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0695

Abstract: A method of wireless communication, by a user equipment (UE), includes receiving multiple neural network training configurations for channel state feedback (CSF). Each configuration corresponds to a different neural network framework. The method also includes training each of a group of neural network decoder/encoder pairs in accordance with the received training configurations. A method of wireless communication, by a base station, includes transmitting multiple neural network training configurations to a user equipment (UE) for channel state feedback (CSF). Each configuration corresponds to a different neural network framework. The method also includes receiving a neural network decoder/encoder pair trained in accordance with the training configurations.

公开(公告)号：US11824688B2

公开(公告)日：2023-11-21

申请号：US17309369

申请日：2018-11-21

Applicant: QUALCOMM Incorporated

Inventor： Bo Chen ,  Pavan Kumar Vitthaladevuni ,  Joseph Binamira Soriaga ,  Ruifeng Ma ,  Alexandros Manolakos ,  Yeliz Tokgoz ,  Tingfang Ji ,  Hao Xu

IPC: H04W24/10 ,  H04L25/02 ,  H04L5/00

CPC classification number: H04L25/0202 ,  H04L5/0057 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a signaling communication that includes information specifying whether a channel state information reference signal (CSI-RS) precoding resource block group includes a same quantity of resource blocks (RBs) that is included in a CSI reporting subband configured for the UE. The CSI-RS precoding resource block group may enable the UE to perform a channel estimation based at least in part on a CSI-RS transmitted by a base station. The UE may perform the channel estimation based at least in part on the CSI-RS transmitted by the base station. The channel estimation may be based at least in part on whether the CSI-RS precoding resource block group includes the same quantity of RBs that is included in the CSI reporting subband configured for the UE. Numerous other aspects are provided.

公开(公告)号：US20200328792A1

公开(公告)日：2020-10-15

申请号：US16305591

申请日：2017-06-22

Applicant: Qualcomm Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Bo Chen

IPC: H04B7/06 ,  H04L5/00

Abstract: Mapping with CSI-RS resources with a code divisional multiplex (CDM) length of eight is disclosed. Such mapping allows for flexibly configuring the set of resource elements (REs) for mapping based on the available CSI-RS resources.

公开(公告)号：US12261783B2

公开(公告)日：2025-03-25

申请号：US17631828

申请日：2019-08-16

Applicant: QUALCOMM Incorporated

Inventor： Bo Chen ,  Chenxi Hao ,  Chao Wei ,  Yu Zhang ,  Ruiming Zheng ,  Peng Cheng ,  Peter Gaal ,  Hao Xu

IPC: H04L5/00

Abstract: Aspects described herein relate to transmitting an indication of a capability to support concurrent or time division multiplexed uplink transmission of at least one of multiple uplink channels across multiple component carriers. In addition, a configuration to transmit over the at least one of the multiple uplink channels over the multiple component carriers using concurrent transmission or time division multiplexed transmission can be received based on the indication.

公开(公告)号：US12225395B2

公开(公告)日：2025-02-11

申请号：US17780175

申请日：2019-11-29

Applicant: Qualcomm Incorporated

Inventor： Yiqing Cao ,  Peter Gaal ,  Chenxi Hao ,  Bo Chen

IPC: H04W4/00 ,  H04W24/08 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, an indication of a monitoring window used by the base station to monitor for uplink transmissions from the UE. The UE may receive a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band. The UE may reconfigure, in response to the received control signal, a first transmit chain of the UE from a second component carrier in a second radio frequency spectrum band to the first component carrier in the first radio frequency spectrum band for the uplink transmission. The UE may transmit, based at least in part on the indicated monitoring window and using at least the reconfigured first transmit chain, the uplink transmission on the first component carrier using the scheduled uplink resources.

公开(公告)号：US12206626B2

公开(公告)日：2025-01-21

申请号：US17640861

申请日：2020-09-09

Applicant: Qualcomm Incorporated

Inventor： Bo Chen ,  Hao Xu ,  Peter Gaal

IPC: H04L5/14 ,  H04L5/00 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may receive an indication of an uplink transmission timing pattern configuration for transmitting uplink transmissions on a first carrier. The UE may identify to use both the first carrier and a second carrier during a single uplink transmission mode, where the UE may transition between sending the uplink transmissions on the first and second carriers. The UE may also determine, based on the uplink transmission timing pattern configuration, a timing of uplink carrier switching periods for retuning between transmissions on the first carrier and on the second carrier. As a result, the UE may transmit, during the single uplink transmission mode, on both the first carrier and the second carrier in accordance with the uplink transmission timing pattern configuration for the first carrier and the uplink carrier switching periods.

公开(公告)号：US12166547B2

公开(公告)日：2024-12-10

申请号：US16077272

申请日：2017-03-10

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Bo Chen ,  Liangming Wu ,  Jilei Hou

IPC: H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: Enhanced hybrid channel state information (CSI) reference signal (CSI-RS) for full dimension multiple input, multiple output (FD-MIMO) is discussed in which a base station configures a first CSI-RS resource for non-precoded CSI-RS and a second CSI-RS resource for beamformed CSI-RS. The first and second CSI-RS resources are associated with the same CSI process in a hybrid CSI-RS operation. The UE provides a first CSI report including a first rank and precoding matrix indicator (PMI) based on measurement of the non-precoded CSI-RS. The base station may use this first CSI process. CSI report for the beamforming of the beamformed CSI-RS. The UE further provides a second CSI report including a second rank, second PMI, and CQI based on measurement of the beamformed CSI-RS. Additional aspects may provide for a base station to aggregate multiple two-port CSI-RS resource configurations into a single multiport CSI-RS resource configuration that may be dynamically shared between different UEs.

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：US11871259B2

公开(公告)日：2024-01-09

申请号：US17275128

申请日：2019-09-26

Applicant: QUALCOMM Incorporated

Inventor： Bo Chen ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Ruifeng Ma ,  Joseph Binamira Soriaga ,  Yeliz Tokgoz ,  Tingfang Ji ,  Alexandros Manolakos

IPC: H04W24/10 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W24/10 ,  H04L5/0057 ,  H04L25/0224

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for sounding reference signal (SRS) guided downlink channel state information-reference signal (CSI-RS) scan. One example method for wireless communication generally includes determining whether to perform channel measurement and reporting operations for a user-equipment (UE) using a reciprocity-based scheme or a channel state information-reference signal (CSI-RS) based scheme based on a criteria of a cell, and performing the channel measurement and reporting operations based on the determination.

公开(公告)号：US20230370229A1

公开(公告)日：2023-11-16

申请号：US18044729

申请日：2020-10-29

Applicant: QUALCOMM INCORPORATED

Inventor： Kexin Xiao ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Bo Chen ,  Runxin Wang ,  Yeliz Tokgoz ,  Krishna Kiran Mukkavilli

IPC: H04L5/00 ,  H04W8/22

CPC classification number: H04L5/0051 ,  H04W8/22

Abstract: Methods, systems, and devices for wireless communications are described. A base station may receive a capability message from a user equipment (UE) based on a number of receive antennas exceeding a number of transmit antennas at the UE. The base station may configure the UE with a mapping between sounding reference signal (SRS) resources and bit sequences, or SRS resource indices (SRIs), based on the capability message. The base station may transmit a control message including one or more SRIs indicating respective SRS resources. The UE may use the one or more SRIs included in a control message from the base station to select respective SRS resources from a resource set. Once the UE selects one or more SRS resources, the UE may transmit one or more SRSs in the SRS resources.