公开(公告)号：US20220006674A1

公开(公告)日：2022-01-06

申请号：US17288224

申请日：2019-10-09

Applicant: FONDATION B-COM

Inventor： Luc Le Magoarou ,  Antoine Le Calvez ,  Stéphane Paquelet

IPC: H04L25/02 ,  H04B7/0413

Abstract: A method for estimating a wireless communication channel between a transmitter and a receiver, including a plurality of paths for propagation of a wave, at least one of the transmitter and the receiver being formed of a plurality of antennas. The method includes: for at least one path, determining a characteristic matrix, which depends on a first element representative of at least one propagation direction associated with the path, and a second element representative of a propagation distance associated with the path; and estimating the communication channel from the at least one obtained characteristic matrix.

公开(公告)号：US11985018B2

公开(公告)日：2024-05-14

申请号：US17797902

申请日：2021-02-02

Applicant: FONDATION B-COM

Inventor： Luc Le Magoarou ,  Stéphane Paquelet

IPC: H04L27/26 ,  H04L25/02

CPC classification number: H04L27/2613 ,  H04L25/0226

Abstract: A pilot sequence includes pilot vectors to be transmitted in a communication channel. A method of determining the pilot sequence comprises determining an orthogonal basis of a real vector space that is an image of a matrix having, respectively as columns, the partial derivatives of the model vector with respect to the different real parameters; and constructing the pilot vectors using the determined orthogonal basis, by grouping the orthogonal vectors of the orthogonal basis in at least one pair and by producing, for each of the at least one pair comprising a first vector and a second vector, a pilot vector by summation of the first vector and a product of the second vector by an imaginary number.

公开(公告)号：US11374799B2

公开(公告)日：2022-06-28

申请号：US17288224

申请日：2019-10-09

Applicant: FONDATION B-COM

Inventor： Luc Le Magoarou ,  Antoine Le Calvez ,  Stéphane Paquelet

IPC: H04B7/0413 ,  H04L25/02

Abstract: A method for estimating a wireless communication channel between a transmitter and a receiver, including a plurality of paths for propagation of a wave, at least one of the transmitter and the receiver being formed of a plurality of antennas. The method includes: for at least one path, determining a characteristic matrix, which depends on a first element representative of at least one propagation direction associated with the path, and a second element representative of a propagation distance associated with the path; and estimating the communication channel from the at least one obtained characteristic matrix.