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：US20240333557A1

公开(公告)日：2024-10-03

申请号：US18631103

申请日：2024-04-10

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Mostafa KHOSHNEVISAN ,  Gokul SRIDHARAN

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/21

CPC classification number: H04L25/0222 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/21

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates to the UE to apply demodulation reference signal (DMRS) bundling to physical uplink shared channel (PUSCH) transmissions. The UE may maintain phase coherence across multiple PUSCH transmissions, to which the DMRS bundling is applied, to enable joint channel estimation across the multiple PUSCH transmissions. The UE may transmit, based at least in part on the configuration, uplink control information (UCI) that includes a coherence indication. The UE may multiplex the UCI with a PUSCH transmission of the multiple PUSCH transmissions to which the DMRS bundling is applied. The coherence indication may indicate whether the PUSCH transmission is coherent with one or more other PUSCH transmissions, of the multiple PUSCH transmissions, transmitted by the UE. Numerous other aspects are described.

公开(公告)号：US12074658B2

公开(公告)日：2024-08-27

申请号：US17760086

申请日：2021-01-27

Applicant: Cohere Technologies, Inc.

Inventor： Shachar Kons ,  Ronny Hadani

IPC: H04B17/373 ,  H04L25/02

CPC classification number: H04B17/373 ,  H04L25/0222 ,  H04L25/023

Abstract: Methods, apparatus and systems for wireless communication are described. One example method includes estimating, based on channel quality information for a first communication channel during a first time interval, a predicted quality of a second communication channel during a second time interval that is a latency interval after the first time interval and using the predicted quality for processing transmissions on the second communication channel during the second time interval.

公开(公告)号：US20240214244A1

公开(公告)日：2024-06-27

申请号：US18083059

申请日：2022-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ziming HE ,  Fei TONG

IPC: H04L25/02 ,  H04L27/26

CPC classification number: H04L25/0222 ,  H04L25/0224 ,  H04L27/2657

Abstract: A communication device, including a receiver configured to receive a signal comprising a plurality of training symbols and a data symbol; and at least one processor configured to: select, from among the plurality of training symbols, a first training symbol and a second training symbol based on a first parameter and a second parameter; obtain a first symbol difference corresponding to the first training symbol, and a second symbol difference corresponding to the second training symbol; estimate a carrier frequency offset based on the first symbol difference and the second symbol difference; obtain a compensated data symbol corresponding to the data symbol based on the estimated carrier frequency offset; and demodulate and decode the compensated data symbol to obtain decoded data.

公开(公告)号：US20240163840A1

公开(公告)日：2024-05-16

申请号：US18550328

申请日：2021-12-02

Applicant: Nokia Technologies Oy

Inventor： Mikko SÄILY ,  Stephan SIGG ,  Sameera PALIPANA ,  Si-Ahmed NAAS

IPC: H04W64/00 ,  H04L5/00 ,  H04L25/02 ,  H04W92/18

CPC classification number: H04W64/006 ,  H04L5/0053 ,  H04L25/0222 ,  H04W92/18

Abstract: A method includes determining backscatter frequency offsets assigned to backscatter nodes to be positioned; controlling transmitting, by the first user device, a positioning signal using time-frequency resources found unused by the first user device or allocated by a network node; controlling receiving, by the first user device via sidelink communication, channel estimate information from a plurality of second user devices, wherein a channel estimate information indicates an estimate of a channel between one of the plurality of second user devices and each of the at least some of the backscatter nodes, and wherein the channel estimate information received from each second user device is based on the transmitted positioning signal that is frequency shifted by an assigned backscatter frequency offset and reflected by each of the at least some of the backscatter nodes; and controlling transmitting, by the first user device to the network node, the received channel estimate information.

公开(公告)号：US11979259B2

公开(公告)日：2024-05-07

申请号：US17644206

申请日：2021-12-14

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Mostafa Khoshnevisan ,  Gokul Sridharan

IPC: H04W88/00 ,  H04L5/00 ,  H04L25/02 ,  H04W72/0446 ,  H04W72/21

CPC classification number: H04L25/0222 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/21

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates to the UE to apply demodulation reference signal (DMRS) bundling to physical uplink shared channel (PUSCH) transmissions. The UE may maintain phase coherence across multiple PUSCH transmissions, to which the DMRS bundling is applied, to enable joint channel estimation across the multiple PUSCH transmissions. The UE may transmit, based at least in part on the configuration, uplink control information (UCI) that includes a coherence indication. The UE may multiplex the UCI with a PUSCH transmission of the multiple PUSCH transmissions to which the DMRS bundling is applied. The coherence indication may indicate whether the PUSCH transmission is coherent with one or more other PUSCH transmissions, of the multiple PUSCH transmissions, transmitted by the UE. Numerous other aspects are described.

公开(公告)号：US11924007B2

公开(公告)日：2024-03-05

申请号：US17541528

申请日：2021-12-03

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Faycal Ait Aoudia ,  Jakob Hoydis

IPC: H04L25/02 ,  G06N3/08

CPC classification number: H04L25/0254 ,  G06N3/08 ,  H04L25/0212 ,  H04L25/0222

Abstract: To obtain delay spread estimations and/or Doppler spread estimations, data representing received data is input to at least one trained model, the trained model outputting spread estimations.

公开(公告)号：US11824689B2

公开(公告)日：2023-11-21

申请号：US17746792

申请日：2022-05-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hitoshi Asai

IPC: H04L25/02 ,  H04L25/05

CPC classification number: H04L25/0222 ,  H04L25/0272 ,  H04L25/05

Abstract: A communication apparatus configured to contactlessly communicate a baseband signal to another communication apparatus includes a transmission unit configured to stop output of a transmission signal, which is to be transmitted to the other communication apparatus, while a reception intensity of a reception signal received from the other communication apparatus is lower than a first threshold value, and a transmission coupler configured to be coupled to a reception coupler of the other communication apparatus by electric field coupling.

公开(公告)号：US20230362035A1

公开(公告)日：2023-11-09

申请号：US18352126

申请日：2023-07-13

Applicant: FURUNO ELECTRIC CO., LTD.

Inventor： Daisuke KIMURA ,  Yusuke TOYODA

IPC: H04L25/02

CPC classification number: H04L25/0222

Abstract: The present disclosure provides a frequency deviation estimation device for estimating a frequency deviation upon receiving a digitally modulated non-repetitive signal. The frequency deviation estimation device is equipped with an instantaneous frequency measurement module, a minimum frequency detection module, and a frequency deviation calculation module. The instantaneous frequency measurement module measures the instantaneous frequency of the received communication signal. The minimum frequency detection module detects the minimum frequency of the instantaneous frequency. The frequency deviation calculation module calculates the frequency deviation between the received communication signal and the reference signal for coarse adjustment using the reference minimum frequency and the minimum frequency when the frequency deviation is zero Hertz.

公开(公告)号：US20230344676A1

公开(公告)日：2023-10-26

申请号：US17793238

申请日：2020-01-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Giovanni INTERDONATO ,  Pål FRENGER ,  Erik G. LARSSON

IPC: H04L25/02 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04L25/0204 ,  H04L25/0222 ,  H04L27/261 ,  H04L5/0048 ,  H04L25/0224

Abstract: A control node, a wireless device, an access point and methods therein, to achieve estimation of path loss and channel response in a radio link between the wireless device and the access point. The control node assigns one and the same pilot sequence to the wireless device and at least one other wireless device in communication with the access point, and further assigns different device-specific phase rotations to the wireless devices. The devices then apply their assigned phase rotations to the pilot sequence when transmitting the pilot sequence in consecutive coherence intervals to the access point which is thereby able to de-spread the received pilot sequences and estimate path loss and channel response in the radio link.