公开(公告)号：US20250055536A1

公开(公告)日：2025-02-13

申请号：US18791365

申请日：2024-07-31

Applicant: Nokia Technologies Oy

Inventor： Matha DEGHEL ,  Filippo TOSATO

IPC: H04B7/06 ,  H04B7/0456

Abstract: An apparatus configured to: determine whether CSI of at least one first sub-configuration of a CSI report configuration and CSI of at least one second sub-configuration of the CSI report configuration are associated to a CSI-RS resource; determine to transmit at least one indicator in the CSI of the at least one first sub-configuration, in response to the CSI of the at least one first sub-configuration and the CSI of the at least one second sub-configuration being associated to the CSI-RS resource; and determine to not transmit at least one indicator in the CSI of the at least one second sub-configuration, in response to the CSI of the at least one first sub-configuration and the CSI of the at least one second sub-configuration being associated to the CSI-RS resource.

公开(公告)号：US20230412225A1

公开(公告)日：2023-12-21

申请号：US18249931

申请日：2020-10-23

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Filippo TOSATO ,  Rana AHMED SALEM ,  Salah HAJRI ,  Hao LIU

IPC: H04B7/06 ,  H04L25/02

CPC classification number: H04B7/0626 ,  H04B7/065 ,  H04L25/0204 ,  H04B7/0639

Abstract: Methods and apparatuses for multi-channel communications are disclosed. A method provides precoding, based on sounding reference signal received from a communication device, reference signal ports in spatial and frequency domain by determining pairs of spatial and frequency domain components where the frequency domain components are arranged in clusters comprising one or more frequency domain components, and pairing of at least one of the spatial domain components with at least two clusters of frequency domain components is enabled; sending information of the precoding to the other communication device; and combining the precoding with a report of precoding received in response from the other communication device. Another method provides sending of the sounding reference signal; receiving, the information of the precoding; performing port selection operation based on the clustered information of frequency domain components; and preparing and sending the report based on the selection operation.

公开(公告)号：US20230361842A1

公开(公告)日：2023-11-09

申请号：US17908188

申请日：2021-02-22

Applicant: Nokia Technologies Oy

Inventor： Salah Eddine HAJRI ,  William HILLERY ,  Filippo TOSATO ,  Eugene VISOTSKY ,  Frederick VOOK ,  Rana AHMED SALEM ,  Marco MASO

IPC: H04B7/06

CPC classification number: H04B7/0639 ,  H04B7/0617 ,  H04B7/0626

Abstract: There is provided a method at a network node of a communication network, comprising: receiving an uplink reference signal from a user equipment; estimating, based on the received uplink reference signal, delay information regarding a delay profile of a communication channel between the user equipment and the network node and spatial information regarding the communication channel; applying both the delay information and the spatial information in precoding of at least one downlink reference signal; transmitting the at least one precoded downlink reference signal to the user equipment; and receiving, from the user equipment as a response to the transmission of the at least one precoded downlink reference signal, channel information, the channel information indicating at least non-zero coefficients of at least one channel transmission layer.

公开(公告)号：US20230113496A1

公开(公告)日：2023-04-13

申请号：US17498738

申请日：2021-10-11

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Rana AHMED SALEM ,  Frederick VOOK ,  Filippo TOSATO ,  Eugene VISOTSKY

IPC: H04B7/10 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/06

Abstract: Systems, methods, apparatuses, and computer program products for co-polarized transmission and port selection associated therewith are provided. For example, a method can include feeding back compressed channel state information. The channel state information can include combining coefficients used to combine a number of space domain, frequency domain, or both space and frequency domain ports. At least one layer can be restricted to be transmitted on one polarization. The feedback for the at least one layer only involves the combining coefficients on the one polarization.

公开(公告)号：US20210126691A1

公开(公告)日：2021-04-29

申请号：US17083841

申请日：2020-10-29

Applicant: Nokia Technologies Oy

Inventor： Filippo TOSATO ,  Marco MASO ,  Mihai ENESCU

IPC: H04B7/06 ,  H04B7/0417

Abstract: A UE determines a PMI, by performing at least the following: determining an intermediate set of vectors from a FD codebook; forming a subset of the intermediate set of vectors; mapping the subset of vectors to a combinatorial indicator; and forming the PMI at least from the combinatorial indicator. The UE sends the PMI toward a wireless network. A base station receives the PMI from the UE. The PMI includes a combinatorial indicator that maps to a subset of vectors from the FD codebook. The base station determines, using at least the received PMI, information from at least the FD codebook to apply to data for transmission toward the UE.

公开(公告)号：US20210028846A1

公开(公告)日：2021-01-28

申请号：US17067076

申请日：2020-10-09

Applicant: Nokia Technologies Oy

Inventor： Filippo TOSATO ,  Marco MASO ,  Nhat-Quang NHAN ,  Hao LIU

IPC: H04B7/06 ,  H04L1/16 ,  H04W72/04

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage media for Uplink Control Information (UCI) design. The method comprises determining, at a terminal device, a matrix comprising a set of non-zero linear combination coefficients for quantizing a channel between the terminal device and a network device, the matrix having spatial components and frequency components; shifting the frequency components of the matrix circularly, such that a target coefficient of the set of non-zero linear combination coefficients is located in a frequency component with a predetermined index of the frequency components in a shifted matrix; generating a first indication indicating the spatial component associated with the target coefficient in the matrix; and transmitting, to the network device, uplink control information comprising the first indication. In this way, a new solution for designing the UCI may reduce the overhead for reporting the parameters in the UCI.

公开(公告)号：US20240356603A1

公开(公告)日：2024-10-24

申请号：US18636992

申请日：2024-04-16

Applicant: Nokia Technologies Oy

Inventor： Roman KOVALCHUKOV ,  Filippo TOSATO ,  Luis Alberto SUAREZ RIVERA ,  Andrea BONFANTE

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0632 ,  H04L5/0051

Abstract: An apparatus or network entity may be configured to: determine at least one quantization parameter for controlling at least one characteristic of a quantization of at least one channel state information quantity, wherein the at least one quantization parameter comprises at least one of: a quantization step size, a quantization step shift, a minimum quantization range value, a maximum quantization range value, a quantization range interval, or a size of a selected set of quantization levels; indicate, to a user equipment, the at least one quantization parameter; and receive, from the user equipment, one or more reports of at least one channel state information quantity based on the at least one quantization parameter indicated by the network entity to the user equipment.

公开(公告)号：US20230403059A1

公开(公告)日：2023-12-14

申请号：US18246441

申请日：2021-09-30

Applicant: Nokia Technologies Oy

Inventor： Axel MUELLER ,  Salah Eddine HAJRI ,  Marco MASO ,  Filippo TOSATO ,  Luca ROSE

IPC: H04B7/06 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04W24/10 ,  H04L5/0053

Abstract: A method for operating a first apparatus (102) and the first apparatus (102) comprising at least one processor, at least one receiver and at least one memory including program code that, when executed by the at least one processor, cause the first apparatus (102) at least to receive at least one RRC configuration comprising a configuration of a channel state information, CSI, wideband report setting and a configuration of a CSI, subband report setting, receive at least one message (302) to trigger CSI wideband reporting and CSI subband reporting, and transmit a CSI wideband report (304) in a first slot comprising information on CSI wideband reporting and transmit a CSI subband report (306) comprising information on CSI subband reporting in a second slot based on the message (302) to trigger CSI wideband reporting and CSI subband reporting.

公开(公告)号：US20230283342A1

公开(公告)日：2023-09-07

申请号：US18019910

申请日：2020-08-07

Applicant: Nokia Technologies Oy

Inventor： Rana Ahmed Salem ,  Youngsoo YUK ,  Keeth Saliya Jayasinghe LADDU ,  Marco MASO ,  Filippo TOSATO ,  Salah Eddine HAJRI

IPC: H04B7/06 ,  H04L5/00 ,  H04B17/318 ,  H04W72/21

CPC classification number: H04B7/0626 ,  H04L5/0051 ,  H04B17/328 ,  H04W72/21

Abstract: Techniques of generating CSI reports include designating at least one of the reports as a reference and the other reports as dependent on the reference. For example, a dependent CSI report may have a differential value of a CSI quantity rather than a raw value of the CSI quantity. Because generally for parameters in a CSI report, the differential quantity has a smaller range of values than the raw values of the CSI quantity, a quantization of the differential value of the CSI quantity will have fewer bits than the raw value; for example, for L1-RSRP, the raw value has 7 bits while the differential value has 4 bits. In another example, a dependent value of a CSI quantity is a flag indicating that the CSI quantity value is located in a reference CSI report.

公开(公告)号：US20250055552A1

公开(公告)日：2025-02-13

申请号：US18930297

申请日：2024-10-29

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sami-Jukka HAKOLA ,  Timo KOSKELA ,  Juha Pekka KARJALAINEN ,  Filippo TOSATO

IPC: H04B7/06 ,  H04B7/024

Abstract: Embodiments of the present disclosure disclose devices, methods and apparatuses of coherent joint transmission. A terminal device may receive a QCL source configuration from a network device. The QCL source configuration may indicate at least two transmission configuration indication (TCI) states that indicate reference signals from valid QCL sources for a coherent joint transmission (CJT) of tracking reference signals (TRSs). The terminal device may perform a QCL property estimation on received TRSs based on the QCL source configuration.