公开(公告)号：US20220321175A1

公开(公告)日：2022-10-06

申请号：US17223639

申请日：2021-04-06

Applicant: Nokia Technologies Oy

Inventor： Filippo Tosato ,  Salah Eddine Hajri ,  Rana Ahmed Salem

IPC: H04B7/024 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10

Abstract: A UE measures RSs from at least two different groups of RSs transmitted from at least two different TRPs from corresponding different base stations. The UE calculates CSI for the at least two TRPs based on RSs configured in the at least two different groups. The UE sends report(s) corresponding to the calculated CSI, the report(s) comprising information for at least the two TRPs of a number of reported hypotheses for a single-TRP measurement and a corresponding association to a number of configured hypotheses for a single-TRP measurement. A TRP, under control of the base station, sends the RSs and receives the report(s).

公开(公告)号：US20220279506A1

公开(公告)日：2022-09-01

申请号：US17632473

申请日：2019-08-16

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Salah Eddine Hajri ,  Filippo Tosato ,  Luca Rose ,  Axel Mueller ,  Marco Maso

IPC: H04W72/04 ,  H04B7/0456 ,  H04L5/00

Abstract: An apparatus (101) comprising means for performing: grouping columns of a linear combination coefficient matrix into a predefined number of clusters; and sending at least one of the clusters in a second part of a uplink control signalling transmission of a channel to an access node, wherein the uplink control signalling transmission comprises a first part and the second part.

公开(公告)号：US11431395B2

公开(公告)日：2022-08-30

申请号：US17083841

申请日：2020-10-29

Applicant: Nokia Technologies Oy

Inventor： Filippo Tosato ,  Marco Maso ,  Mihai Enescu

IPC: H04B7/02 ,  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：US10972170B2

公开(公告)日：2021-04-06

申请号：US16839614

申请日：2020-04-03

Applicant: Nokia Technologies Oy

Inventor： Filippo Tosato ,  Marco Maso ,  Nhat-Quang Nhan

IPC: H04B7/06 ,  H04B7/10 ,  H04B7/0417

Abstract: There is provided a method at a user equipment, comprising:
receiving transmission on two different polarizations over a wireless channel from net-work; determining a plurality of coefficients associated with a precoding matrix based on channel measurements of the reception, wherein the coefficients at least partially define a combination matrix; selecting a coefficient among the coefficients of the weaker polarization, the selected coefficient being a reference coefficient for the weaker polarization; determining a first indicator and a second indicator for the reference coefficient, wherein the first indicator indicates a position of the reference coefficient in the combination matrix and the second indicator comprises an amplitude value associated with the reference coefficient; reporting the first and second indicators to the network.

公开(公告)号：US20200322028A1

公开(公告)日：2020-10-08

申请号：US16839614

申请日：2020-04-03

Applicant: Nokia Technologies Oy

Inventor： Filippo Tosato ,  Marco Maso ,  Nhat-Quang Nhan

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/10

Abstract: There is provided a method at a user equipment, comprising:receiving transmission on two different polarizations over a wireless channel from net-work; determining a plurality of coefficients associated with a precoding matrix based on channel measurements of the reception, wherein the coefficients at least partially define a combination matrix; selecting a coefficient among the coefficients of the weaker polarization, the selected coefficient being a reference coefficient for the weaker polarization; determining a first indicator and a second indicator for the reference coefficient, wherein the first indicator indicates a position of the reference coefficient in the combination matrix and the second indicator comprises an amplitude value associated with the reference coefficient; reporting the first and second indicators to the network.

公开(公告)号：US11811431B2

公开(公告)日：2023-11-07

申请号：US17862958

申请日：2022-07-12

Applicant: Nokia Technologies Oy

Inventor： Rana Ahmed Salem ,  Filippo Tosato ,  Marco Maso ,  William Hillery

IPC: H04B7/06 ,  H04B7/0456 ,  H04L1/1607

CPC classification number: H04B7/0663 ,  H04B7/0456 ,  H04B7/0626 ,  H04L1/1614

Abstract: In accordance with an example embodiment of the present invention, a method comprising: selecting, by a user equipment, a subset of linear combination coefficients from a linearized two-dimensional matrix having columns of frequency domain components and rows of spatial beams components for channel state information determination, wherein the number of linear combination coefficients in the subset is less than all of the linear combination coefficients; determining indication comprising information associated with column indices of the selected subset of linear combination coefficients from the linearized two-dimensional matrix, wherein the indication excludes the index of the column with lowest index of the linearized two-dimensional matrix; determining compressed channel state information comprising locations in the linearized two-dimensional matrix of the subset of linear combination coefficients and corresponding values of the linear combination coefficients at those locations; and reporting, from the user equipment toward the base station, the compressed channel state information.

公开(公告)号：US11336356B2

公开(公告)日：2022-05-17

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：US20210119684A1

公开(公告)日：2021-04-22

申请号：US17065175

申请日：2020-10-07

Applicant: Nokia Technologies Oy

Inventor： Filippo Tosato ,  Marco Maso ,  Salah Eddine Hajri

IPC: H04B7/06 ,  H04W72/04

Abstract: In accordance with an example embodiment of the present invention, a method, apparatus and software program product for partitioning channel state information into groups of different priority levels, wherein said channel state information comprises non zero coefficients and said partitioning comprises using at least one permutation function to prioritize said non-zero coefficients substantially based on an amplitude distribution of said non zero coefficients to determine mapping of said non zero coefficients to said groups, and further for omitting zero or more non-zero coefficients in accordance with said amplitude distribution based prioritizing from said groups, and for transmitting remaining non zero coefficients in said groups.