公开(公告)号：US20230308920A1

公开(公告)日：2023-09-28

申请号：US18041090

申请日：2021-06-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  June NAMGOONG ,  Taesang YOO ,  Naga BHUSHAN ,  Pavan Kumar VITTHALADEVUNI ,  Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  Tingfang JI

IPC: H04W24/10 ,  G06N3/0455 ,  G06N3/098

CPC classification number: H04W24/10 ,  G06N3/0455 ,  G06N3/098

Abstract: Various aspects of the present disclosure relate to wireless communication. In some aspects, a client may receive a selection feedback configuration associated with a reporting procedure for reporting updates corresponding to at least one autoencoder index associated with one or more autoencoders selected by the client. The client may determine an update corresponding to the at least one autoencoder index. The client may transmit the update based at least in part on the selection feedback configuration. Numerous other aspects are provided.

公开(公告)号：US20230254773A1

公开(公告)日：2023-08-10

申请号：US18003059

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar VITTHALADEVUNI ,  Alexandros MANOLAKOS ,  Taesang YOO ,  Naga BHUSHAN ,  June NAMGOONG ,  Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI ,  Wanshi CHEN ,  Tingfang JI

IPC: H04W52/02 ,  H04B7/06

CPC classification number: H04W52/0261 ,  H04B7/0626 ,  H04B7/0641

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may determine that a power threshold for the first device is satisfied. The first device may transition from a first type of channel state feedback processing to a second type of channel state feedback processing based at least in part on determining that the power threshold for the first device is satisfied.

公开(公告)号：US20230247558A1

公开(公告)日：2023-08-03

申请号：US18299315

申请日：2023-04-12

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Pavan Kumar VITTHALADEVUNI ,  Krishna Kiran MUKKAVILLI ,  Runxin WANG

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/044 ,  H04B7/0404 ,  H04W72/21 ,  H04W72/51

CPC classification number: H04W52/0274 ,  H04B7/0404 ,  H04L5/0051 ,  H04W72/21 ,  H04W72/044 ,  H04W72/51

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

公开(公告)号：US20230246693A1

公开(公告)日：2023-08-03

申请号：US18004611

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar VITTHALADEVUNI ,  Hwan Joon KWON ,  Taesang YOO ,  Alexandros MANOLAKOS ,  Naga BHUSHAN ,  June NAMGOONG ,  Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0641 ,  H04L1/0026 ,  H04B7/0626 ,  H04L1/0029

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may receive a channel state information (CSI) feedback configuration comprising an indication to save, for a specified time period, a channel state feedback (CSF) that corresponds to a first reference signal carried on a downlink channel. The first device may transmit a differential CSF based at least in part on the CSF and a second reference signal carried on the downlink channel. Numerous other aspects are provided.

公开(公告)号：US20230188302A1

公开(公告)日：2023-06-15

申请号：US18004286

申请日：2020-08-31

Applicant: QUALCOMM INCORPORATED

Inventor： Pavan Kumar VITTHALADEVUNI ,  Taesang YOO ,  Naga BHUSHAN ,  June NAMGOONG ,  Bo CHEN ,  Ruifeng MA ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04L5/00 ,  H04W72/231 ,  G06N3/08

CPC classification number: H04L5/0057 ,  H04L5/0048 ,  H04W72/231 ,  G06N3/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques at a user equipment (UE) provide for efficiently reporting channel state information (CSI) to a base station with an appropriate level of accuracy. In particular, the base station may indicate a level of accuracy to the UE for reporting CSI. The UE may encode the CSI using a first neural network, and the base station may decode the CSI using a second neural network. The first and second neural networks may form a neural network pair, and the UE may train the neural network pair based on the level of accuracy indicated by the base station. For example, the base station may indicate a loss function corresponding to a level of accuracy with which CSI is to be reported by the UE, and the UE may train the neural network pair using the loss function.

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：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：US20210266210A1

公开(公告)日：2021-08-26

申请号：US17154607

申请日：2021-01-21

Applicant: QUALCOMM Incorporated

Inventor： June NAMGOONG ,  Krishna Kiran MUKKAVILLI ,  Taesang YOO ,  Naga BHUSHAN ,  Tingfang JI ,  Jay Kumar SUNDARARAJAN ,  Pavan Kumar VITTHALADEVUNI

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  G06N3/08 ,  G06N3/04

Abstract: Certain aspects of the present disclosure provide techniques for generating and decoding orthogonal frequency division (OFDM) waveforms with peak reduction tones (PRTs) designed to reduce PAPR. By generating PRT tones with a machine learning (e.g., neural network) based encoder and mapping some of the PRT tones to subcarriers used for physical channels or signals, PAPR may be reduced while efficiently using system resources.