公开(公告)号：US12132548B2

公开(公告)日：2024-10-29

申请号：US17769531

申请日：2020-10-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younghyun Jeon ,  Eunyong Kim ,  Myoungwon Lee

IPC: H04L23/02 ,  H04B7/06 ,  H04L25/02

CPC classification number: H04B7/0626 ,  H04B7/0639 ,  H04L25/0222 ,  H04L25/0228

Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate beyond a 4th (4G) communication system such as long term evolution (LTE). According to a various embodiments of the present disclosure, a base station in a wireless communication system may comprise the steps of: acquiring, in a first time interval, channel information of a downlink channel with a terminal; on the basis of the unscented Kalman filter, acquiring current channel state information from previous state information and the channel information; and generating, from the current channel state information, predicted channel information in a second time interval.

公开(公告)号：US20240356615A1

公开(公告)日：2024-10-24

申请号：US18759146

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Li ,  Xiaohan Wang ,  Huangping Jin

IPC: H04B7/06

CPC classification number: H04B7/0639 ,  H04B7/0617 ,  H04B7/0634

Abstract: This application discloses a channel state information feedback method and apparatus, a medium, and a program product. A terminal obtains a long-period reporting amount of a precoding matrix indicator (PMI) in channel state information. N1 characteristic subspace beams are represented by a linear combination of M1 DFT base vectors in a first group of DFT base vectors, and N2 characteristic subspace beams are represented by a linear combination of M2 DFT base vectors in a second group of DFT base vectors. The long-period reporting amount includes indication information of the M1 DFT base vectors, indication information of the M2 DFT base vectors, a linear combination coefficient of the M1 DFT base vectors, and a linear combination coefficient of the M2 DFT base vectors. The terminal sends the long-period reporting amount of the PMI to an access network device.

公开(公告)号：US20240356611A1

公开(公告)日：2024-10-24

申请号：US18761629

申请日：2024-07-02

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Rakesh TAMRAKAR

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0639 ,  H04B7/06952

Abstract: This application discloses a channel state information CSI feedback method and apparatus, a terminal, and a network-side device. The method in embodiments of this application includes: determining, by a terminal, N to-be-measured channel state information reference signals CSI-RSs, where N is an integer greater than 1; measuring, by the terminal, the N CSI-RSs to obtain CSI, where the CSI includes a transmission rank, beam indexes respectively corresponding to P CSI-RSs, and a bitmap corresponding to the P CSI-RSs, the bitmap is used to indicate coefficients, subjected to frequency-domain compression, of beams that need feedback of the CSI-RS, and P is an integer less than or equal to N; and transmitting, by the terminal, the CSI to a network-side device.

公开(公告)号：US12126424B2

公开(公告)日：2024-10-22

申请号：US18317272

申请日：2023-05-15

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Yucheng Dai ,  Tao Luo ,  Peter Gaal ,  Junyi Li ,  Sony Akkarakaran

IPC: H04B7/06 ,  H04B7/155 ,  H04W56/00

CPC classification number: H04B7/15507 ,  H04B7/0639 ,  H04W56/0035

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block (SSB) transmitted by a base station. The UE may receive system information that includes reconfigurable intelligent surface (RIS) or repeater assisted initial access information that identifies a set of SSBs that are associated with an RIS or a repeater and a modulation signature associated with the RIS or the repeater. The UE may selectively perform initial access using the SSB or search for another SSB based at least in part on the RIS or repeater assisted initial access information. Numerous other aspects are described.

公开(公告)号：US12126406B2

公开(公告)日：2024-10-22

申请号：US18477477

申请日：2023-09-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Md. Saifur Rahman ,  Eko Onggosanusi

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/21 ,  H04W80/08

CPC classification number: H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0051 ,  H04W72/0453 ,  H04W72/21 ,  H04W80/08

Abstract: A method for operating a user equipment (UE) for channel state information (CSI) feedback in a wireless communication system is provided. The method comprises receiving, from a base station (BS), CSI reference signals (CSI-RSs) and CSI feedback configuration information, estimating a channel based on the received CSI-RSs, determining, based on the estimated channel and the CSI feedback configuration information, a number of non-zero coefficients (KlNZ) for each layer (l) of a total number of υ layers, wherein υ≥1 is a rank value, and a sum of the KlNZ across each of the υ layers as a total number of non-zero coefficients (KNZ), where KNZ=Σl=1υKlNZ. The method further comprises transmitting, to the BS, the CSI feedback including the KNZ value over an uplink (UL) channel.

公开(公告)号：US12119902B2

公开(公告)日：2024-10-15

申请号：US18228195

申请日：2023-07-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Yi Huang ,  Yuanjie Li

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04B7/0639 ,  H04W72/0453 ,  H04W72/23

Abstract: This application provides a transmission precoding matrix indication method and a device. The method includes: determining a bit quantity of a transmission precoding matrix indicator field corresponding to a subband scheduled for uplink based on downlink control information received from a network device, where the bit quantity of the transmission precoding matrix indicator field corresponding to the subband is related to a quantity of subbands corresponding to the resource scheduled for uplink; and further, determining an uplink transmission precoding matrix corresponding to the subband based on the bit quantity of the transmission precoding matrix indicator field corresponding to the subband and the uplink transmission layer quantity. A transmission precoding matrix indicator field can be effectively used, and control channel resource utilization is improved.

公开(公告)号：US12107647B2

公开(公告)日：2024-10-01

申请号：US16649097

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0486 ,  H04B7/0639 ,  H04B7/0665

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for signaling precoder(s) for non-PMI based CSI feedback.

公开(公告)号：US20240322956A1

公开(公告)日：2024-09-26

申请号：US18186920

申请日：2023-03-20

Applicant: QUALCOMM Incorporated

Inventor： Mohamed Fouad Ahmed MARZBAN ,  Wooseok NAM ,  Tao LUO

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/044 ,  H04W72/0453

CPC classification number: H04L5/0007 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0037 ,  H04W72/0453 ,  H04W72/046

Abstract: A UE may identify, in at least one round of a federated learning procedure, at least one gradient update based on local data and a local copy of a machine learning model associated with the federated learning procedure. The UE may transmit, in the at least one round of the federated learning procedure, for a network node, an indication of the at least one gradient update based on a sign of the at least one gradient update and a non-coherent orthogonal modulation scheme. The network node may identify, in at least one round of the federated learning procedure, an accumulated sign of the at least one gradient update based on a first received power associated with the at least one first resource and a second received power associated with the at least one second resource.

公开(公告)号：US20240322889A1

公开(公告)日：2024-09-26

申请号：US18731033

申请日：2024-05-31

Applicant: XI’AN ZHONGXING NEW SOFTWARE CO., LTD.

Inventor： Shujuan ZHANG ,  Yijian CHEN ,  Yu Ngok LI ,  Yuhong GONG ,  Zhaohua LU

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04B7/0639 ,  H04B7/063 ,  H04B7/066 ,  H04B7/0695 ,  H04B7/0848 ,  H04B7/088 ,  H04L5/00

Abstract: Provided are a method for transmitting and receiving beams, and a transmitting end and a receiving end. The method for transmitting beams includes: determining, by a transmitting end, X transmission beam groups, where X is an integer greater than or equal to 1; and transmitting, by the transmitting end, one or more transmission beams according to the X transmission beam groups, where the one or more transmission beams belong to the X transmission beam groups. Different transmission beams in a same transmission beam group of the X transmission beam groups are transmitted by the transmitting end only at different time; and transmission beams respectively belonging to different transmission beam groups are able to be transmitted by the transmitting end at the same time.

公开(公告)号：US20240322887A1

公开(公告)日：2024-09-26

申请号：US18188405

申请日：2023-03-22

Applicant: QUALCOMM Incorporated

Inventor： Yavuz YAPICI ,  Narayan PRASAD ,  Tao LUO ,  Junyi LI

IPC: H04B7/06 ,  H04B17/327

CPC classification number: H04B7/0639 ,  H04B17/327

Abstract: The apparatus may be a wireless device, or a component of a wireless device, configured to receive a plurality of reference signal transmissions associated with a corresponding plurality of configurations of a configurable array of reflective elements and to provide, based on the plurality of reference signal transmissions, information indicating an estimated distance from the wireless device to the configurable array of reflective elements. The apparatus may be a RIS, a RIS controller, a base station, or a component of any of the RIS, the RIS controller, or the base station, configured to provide a plurality of reference signal transmissions associated with a corresponding plurality of configurations of a configurable array of reflective elements, and obtain, based on the plurality of reference signal transmissions, information indicating an estimated distance from a wireless device to the configurable array of reflective elements.