公开(公告)号：US20220131590A1

公开(公告)日：2022-04-28

申请号：US17423410

申请日：2020-01-21

Applicant: QUALCOMM Incorporated

Inventor： Ruifeng MA ,  Yuwei REN ,  Bo CHEN ,  Renqiu WANG ,  Pavan Kumar VITTHALADEVUNI ,  Tingfang JI ,  Hao XU

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for providing channel state feedback. One example method generally includes receiving at least one first pilot signal, and generating a first channel state information (CSI) report based on the at least one first pilot signal. The first CSI report may include a differential phase feedback for each subband (SB) of one or more SBs associated with the at least one first pilot signal. The method may also include transmitting the first CSI report having the differential phase feedback.

公开(公告)号：US20220078649A1

公开(公告)日：2022-03-10

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

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：US20220077909A1

公开(公告)日：2022-03-10

申请号：US17310350

申请日：2020-02-11

Applicant: QUALCOMM Incorporated

Inventor： Ruifeng MA ,  Yuwei REN ,  Bo CHEN ,  Yu ZHANG ,  Liangming WU ,  Chenxi HAO ,  Renqiu WANG ,  Hao XU ,  Tingfang JI

IPC: H04B7/06 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine that a user equipment (UE) is to use a differential reporting mode based at least in part on a channel state information (CSI) report from the UE. The base station may transmit to the UE, signaling to cause the UE to use the differential reporting mode based at least in part on determining that the UE is to use the differential reporting mode. Numerous other aspects are provided.

公开(公告)号：US20220021558A1

公开(公告)日：2022-01-20

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: H04L25/02 ,  H04L5/00 ,  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：US20210351827A1

公开(公告)日：2021-11-11

申请号：US17276765

申请日：2018-10-16

Applicant: Chenxi HAO ,  Yu ZHANG ,  Bo CHEN ,  Ruifeng MA ,  Pavan Kumar VITTHALADEVUNI ,  Wanshi CHEN ,  Qiaoyu LI ,  Liangming WU ,  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 ,  H04L25/02 ,  H04L5/00

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：US20230354281A1

公开(公告)日：2023-11-02

申请号：US18011007

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Wentao ZHANG ,  Bo CHEN ,  Mingkai NAN ,  Hao XU

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04W72/0453 ,  H04L5/001

Abstract: Aspects relate to carrier aggregation. Selection of an uplink component carrier for carrier aggregation may be flexible in the sense that the frequency band of the uplink component carrier need not be one of the frequency bands allocated for the downlink component carriers. Thus, in some aspects, an uplink component carrier may be decoupled from (e.g., independent of) the downlink carriers. A decision of whether to implement flexible uplink component carrier selection may be based on network traffic (e.g., particular traffic use cases). As one example, the data throughput requirement for downlink traffic may be relatively high, but the component carriers selected for the downlink traffic to provide this throughput might not provide a desired level of service for the uplink traffic. Thus, one or more component carrier bands selected for the uplink traffic may be different from any of the component carrier bands selected for the downlink traffic.

公开(公告)号：US20230208576A1

公开(公告)日：2023-06-29

申请号：US18000351

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Bo CHEN ,  Wei GUAN ,  Mingkai NAN

IPC: H04L5/00 ,  H04L5/22 ,  H04W72/044

CPC classification number: H04L5/001 ,  H04L5/22 ,  H04W72/044

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a configuration for time division multiplexed uplink carrier aggregation of a first time division duplex carrier with a second time division duplex carrier, wherein a bandwidth of the second time division duplex carrier is lower than a bandwidth of the first time division duplex carrier, wherein the configuration indicates a frame structure corresponding to the second time division duplex carrier, and wherein the frame structure comprises a slot sequence, and communicate in accordance with the configuration. Numerous other aspects are provided.

公开(公告)号：US20230171077A1

公开(公告)日：2023-06-01

申请号：US17921878

申请日：2020-06-30

Applicant: Bo CHEN ,  Wei GUAN ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Bo CHEN ,  Wei GUAN ,  Hao XU

IPC: H04L5/00 ,  H04W72/1263

CPC classification number: H04L5/0098 ,  H04L5/001 ,  H04L5/0092 ,  H04W72/1263

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for configuring, based on capability of the user equipment (UE) in switching among multiple component carriers (CCs), the UEs for communications with multiple activated CCs. For example, the network may configure the UE with a number of activated CCs that exceeds a number of CCs supported by the UE for simultaneous connections, such that the UE quickly switches among the activated CCs. The UE can thus effectively utilize more operating bands than the number allowed for simultaneous connections using inter-band carrier aggregations.

公开(公告)号：US20230163913A1

公开(公告)日：2023-05-25

申请号：US17768664

申请日：2019-10-31

Applicant: Qualcomm Incorporated

Inventor： Alexandros MANOLAKOS ,  Yi HUANG ,  Wanshi CHEN ,  Pavan Kumar VITTHALADEVUNI ,  Krishna Kiran MUKKAVILLI ,  Bo CHEN ,  Ruifeng MA ,  Weimin DUAN ,  Muhammad Sayed Khairy ABDELGHAFFAR

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04L5/0051 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration identifying a first set of frequency resources for transmitting a sounding reference signal, where the sounding reference signal may be used at least for downlink channel state information acquisition. The UE may receive an indication of an association between the configuration for the sounding reference signal and a second set of frequency resources and determine, based on the association, values for one or more sounding reference signal transmission parameters for the first set of frequency resources. The UE may transmit the sounding reference signal on the first set of frequency resources based on the determined one or more values.

公开(公告)号：US20230084164A1

公开(公告)日：2023-03-16

申请号：US17801505

申请日：2020-04-17

Applicant: Bo CHEN ,  Pavan Kumar THALADEVUNI ,  Taesang YOO ,  Naga BHUSHAN ,  Jay Kumar SUNDARARAJAN ,  Ruifeng MA ,  June NAMGOONG ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI ,  Hao XU ,  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

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.