公开(公告)号：US20220327380A1

公开(公告)日：2022-10-13

申请号：US17641648

申请日：2019-09-12

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Jakob HOYDIS ,  Faycal AIT AOUDIA

IPC: G06N3/08

Abstract: An apparatus, method and computer program is described comprising: initialising a plurality of sets of trainable parameters, one set of trainable parameters being initialised for each of a plurality of detection algorithms; obtaining a dataset comprising a plurality of sets of data, each set of data comprising a transmit vector, a receive vector and a channel matrix describing a channel; allocating each of the sets of data to one of a plurality of clusters based on the channel matrix of the respective set of data, wherein each cluster is associated with one of said detection algorithms, wherein the allocation is performed according to a clustering algorithm; and training the trainable parameters of each detection algorithm using the sets of data allocated to the respective cluster.

公开(公告)号：US20220191067A1

公开(公告)日：2022-06-16

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

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：US20220183014A1

公开(公告)日：2022-06-09

申请号：US17539661

申请日：2021-12-01

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Mathieu GOUTAY ,  Faycal AIT AOUDIA ,  Jakob HOYDIS

IPC: H04W72/08 ,  H04L25/02 ,  H04B7/0452

Abstract: To provide demapping at a receiving side, a trained model for a demapper is used to output log-likelihood ratios of received signals representing data in a multi-user transmission. Inputs for the trained model for the demapper comprise a resource grid of equalized received signals.

公开(公告)号：US20210367654A1

公开(公告)日：2021-11-25

申请号：US17316906

申请日：2021-05-11

Applicant: Nokia Technologies OY

Inventor： Mathieu GOUTAY ,  Jakob HOYDIS ,  Faycal AIT AOUDIA

IPC: H04B7/06 ,  H04B7/0452 ,  G06N20/00

Abstract: An apparatus for optimization of signal shaping for a multi user multiple input multiple output, MU-MIMO, communication system, including circuitry configured for receiving a bit vector; and for determining a constellation vector, wherein the circuitry for determining the constellation vector includes a Geometric Shaping and Labeling Block, GSLB, for modulating the bit vector, wherein the GSLB is configured to implement an algorithm with one or more trainable parameters.

公开(公告)号：US20210027161A1

公开(公告)日：2021-01-28

申请号：US17044584

申请日：2018-06-07

Applicant: Nokia Technologies OY

Inventor： Jakob HOYDIS ,  Faycal AIT AOUDIA

IPC: G06N3/08 ,  H04L1/00 ,  G06N3/04

Abstract: Apparatuses, methods and computer programs are described including receiving a sequence of messages at a correction module of a transmission system, wherein the transmission system includes a transmitter, a channel, the correction module and a receiver, wherein the correction module includes a correction algorithm having at least some trainable weights; converting the received sequence of messages into a converted sequence of messages using the correction algorithm; receiving a reward or loss function from the receiver based on the modified sequence of messages; and training at least some weights of the correction algorithm based on the received reward or loss function.