公开(公告)号：US20230397172A1

公开(公告)日：2023-12-07

申请号：US18249191

申请日：2020-12-29

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Hao XU ,  Yu ZHANG ,  Chenxi HAO ,  Chao WEI ,  Rui HU ,  Liangming WU ,  Ruiming ZHENG ,  Yin HUANG ,  Yuwei REN

IPC: H04W72/044 ,  G06N20/00 ,  H04W28/02 ,  H04L41/16

CPC classification number: H04W72/044 ,  G06N20/00 ,  H04W28/0252 ,  H04L41/16

Abstract: Methods, systems, and devices for wireless communications are described that support signaling of compressed gradient vectors in a machine learning system that utilizes federated learning. The compressed gradient vectors may be used to report stochastic gradients from multiple edge devices (e.g., multiple user equipment (UE) devices) that are combined into a global model at an edge server (e.g., a base station). A base station may configure a UE with one or more parameters for quantizing a local stochastic gradient, and for reporting the quantized local stochastic gradient in a set of compressed gradient vectors. Each vector of the compressed gradient vectors may be associated with a different stage of a multi-stage compression procedure for reporting the local stochastic gradient, and multiple reports from multiple UEs may be aggregated in a federated learning procedure associated with a machine learning algorithm.

公开(公告)号：US20230396355A1

公开(公告)日：2023-12-07

申请号：US18249922

申请日：2020-12-14

Applicant: QUALCOMM INCORPORATED

Inventor： Kangqi LIU ,  Liangming WU ,  Changlong XU ,  Jian LI ,  Hao XU ,  Ruiming ZHENG

IPC: H04L1/00

CPC classification number: H04L1/0003 ,  H04L1/0061 ,  H04L1/0009

Abstract: Methods, systems, and devices for wireless communications are described. A rateless code may be used to generate n encoded packets based on a set of source packets. A modulation technique may be used to generate first symbol packets from the encoded packets. And a layered modulation technique may be used to generate coded symbol packets from the first symbol packets. The layered modulation technique may include generating a coded symbol packet from a group of first symbol packets. Different weights may be applied to the different first symbol packets included in the group of first symbol packets before the first symbol packets in the group are combined together. A receiving device may demodulate the transmitted coded symbol packets to reconstruct the group of first symbol packets, use the reconstructed group of first symbol packets to recover the encoded packets, and use the encoded packets to reconstruct the source packets.

公开(公告)号：US20230361913A1

公开(公告)日：2023-11-09

申请号：US18245144

申请日：2020-11-18

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Changlong XU ,  Jian LI ,  Kangqi LIU ,  Kexin XIAO ,  Hao XU

IPC: H04L1/00

CPC classification number: H04L1/0042 ,  H04L1/0075

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a configuration indicating a set of encoding parameters corresponding to a constellation shaping encoding process. The UE may calculate a number of bits of a first subset of a source bit stream, and the first subset of the source bit stream may include or encompass an input to a distribution matcher. The UE may apply, to the first subset, a distribution matcher parameter based on the set of encoding parameters. The UE may calculate a number of bits of a second subset of the source bit stream, and the second subset of the source bit stream may be concatenated with an output bit stream of the distribution matcher as an input to a channel encoder. The UE may signal the source bit stream to the base station.

公开(公告)号：US20230361821A1

公开(公告)日：2023-11-09

申请号：US18246025

申请日：2020-11-25

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG ,  Chenxi HAO ,  Kangqi LIU ,  Min HUANG ,  Rui HU ,  Hao XU ,  Wei XI

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0486 ,  H04B7/0645

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a channel state information (CSI) configuration indicating a first feedback reporting periodicity for a dominant, or strong, spatial layer and a second feedback reporting periodicity for a non-dominant, or weak, spatial layer. The UE may transmit a first CSI report for at least the dominant spatial layer according to the first feedback reporting periodicity. The UE may transmit a second CSI report for the non-dominant spatial layer according to the second feedback reporting periodicity. In some cases, for aperiodic reporting, the UE may be triggered by downlink control information to report CSI for the dominant spatial layer. In some cases, the CSI configuration may indicate different codebooks for the dominant and non-dominant spatial layers.

公开(公告)号：US20230353210A1

公开(公告)日：2023-11-02

申请号：US18043134

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Hao XU

IPC: H04B7/06

CPC classification number: H04B7/0626

Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for CSI reporting based on UE capability to support port selection codebook.

公开(公告)号：US20230300816A1

公开(公告)日：2023-09-21

申请号：US18014719

申请日：2020-08-21

Applicant: Shaozhen GUO ,  Jing SUN ,  Changlong XU ,  Xiaoxia ZHANG ,  Rajat PRAKASH ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Shaozhen GUO ,  Jing SUN ,  Changlong XU ,  Xiaoxia ZHANG ,  Rajat PRAKASH ,  Hao XU

IPC: H04W72/11 ,  H04W72/1273 ,  H04L1/1812 ,  H04L5/00

CPC classification number: H04W72/11 ,  H04W72/1273 ,  H04L1/1812 ,  H04L5/0053

Abstract: A method of wireless communication, by a user equipment (UE) includes receiving downlink semi-persistent scheduling (SPS) configurations. The method also includes receiving a physical downlink shared channel (PDSCH) transmission for each of the plurality of SPS configurations. Each PDSCH transmission has no associated physical downlink control channel (PDCCH). The method further includes determining whether successful decoding of each of the PDSCH transmissions occurred. The method further includes generating a hybrid automatic repeat request (HARQ) codebook for the PDSCH transmissions based on the determining. The method also includes transmitting the HARQ codebook in a physical uplink control channel (PUCCH) only when at least one ACK is present in the HARQ codebook.

公开(公告)号：US20230300805A1

公开(公告)日：2023-09-21

申请号：US18000278

申请日：2020-07-13

Applicant: Qiaoyu LI ,  Yu ZHANG ,  Hao XU ,  Min HUANG ,  Jing DAI ,  Chao WEI ,  QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Hao XU ,  Min HUANG ,  Jing DAI ,  Chao WEI

IPC: H04W72/0446 ,  H04W72/51

CPC classification number: H04W72/0446 ,  H04W72/51

Abstract: Methods, systems (100), and devices for wireless communications are described. In some systems (100), a base station (105) and a user equipment (UE) (115) may communicate over a shared radio frequency spectrum and may employ time-division multiplexing (TDM) techniques to multiplex sensing signals (315) with wireless communications in the shared radio frequency spectrum. In some examples, the base station (105) may configure the UE (115) with a first retuning gap during which the UE (115) may retune a radio frequency chain of the UE (115) when transitioning from a sensing signal (315) pulse to wireless communications and with a second retuning gap during which the UE may retune the radio frequency chain when transitioning from wireless communications to a sensing signal (315). In some other examples, the base station (105) may configure the UE (115) with a phase and amplitude continuity status of multiple adjacent sensing signal (315) pulses that may indicate whether the multiple adjacent sensing signal (315) pulses have

公开(公告)号：US20230299899A1

公开(公告)日：2023-09-21

申请号：US18017555

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Bo CHEN ,  Wentao ZHANG ,  Hao XU

IPC: H04L5/00

CPC classification number: H04L5/0035 ,  H04L5/0048

Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may transmit an interference indication associated with DSS, the interference indication corresponding to a capability of a CRS interference cancellation. The apparatus may also receive CRS assistance information associated with the DSS, the CRS assistance information corresponding to one or more interfering cells. Additionally, the apparatus may determine at least one of a location or a sequence of at least one CRS, the at least one CRS corresponding to at least one of the one or more interfering cells. The apparatus may also mitigate interference from the at least one CRS corresponding to the at least one interfering cell, the interference being mitigated based on at least one of the location or the sequence of the at least one CRS.

公开(公告)号：US20230239813A1

公开(公告)日：2023-07-27

申请号：US18001768

申请日：2020-08-25

Applicant: QUALCOMM Incorporated

Inventor： Luanxia YANG ,  Changlong XU ,  Jing SUN ,  Xiaoxia ZHANG ,  Rajat PRAKASH ,  Hao XU

IPC: H04W52/48 ,  H04W52/36

CPC classification number: H04W52/48 ,  H04W52/36

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a source device may determine a transmit power level increase based at least in part on a failed transmission for a message having a deadline for reception at a target device. For example, in some aspects, the deadline for reception of the message may be based at least in part on a survival time for an application consuming a communication service associated with the message. The source device may transmit a next message using the transmit power level increase during the survival time and prior to the deadline for reception of the message at the target device. Numerous other aspects are provided.

公开(公告)号：US20230239124A1

公开(公告)日：2023-07-27

申请号：US18009199

申请日：2020-06-08

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chao WEI ,  Hao XU

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04L5/0094 ,  H04W72/0453 ,  H04L5/0051

Abstract: The present disclosure relates to combinable a sub-resource block (RB) sounding reference signal (SRS) transmission for coverage enhancement. Specifically, a network entity may transmit, and a user equipment (UE) may receive a sub-RB SRS configuration message, and a transmit one or more sub-RB SRS. The UE may receive a sub-RB SRS configuration message and transmit one or more sub-RB SRS.