公开(公告)号：US20220393795A1

公开(公告)日：2022-12-08

申请号：US17771261

申请日：2019-10-31

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Mathieu GOUTAY ,  Faycal AIT AOUDIA ,  Jakob HOYDIS

IPC: H04L1/16

Abstract: A retransmission method in a communication system, wherein the communication system comprises at least one transmitter and at least one receiver with a communication channel between the transmitter and the receiver, the method comprising: utilising in the transmitter a transmitter algorithm with trainable weights and in the receiver a receiver algorithm with trainable weights; generating (302) by the transmitter symbols to be transmitted based on a message to be sent and feedback received from the receiver and transmitting the symbols; generating (304) by the receiver a predicted message based on the received symbols, evaluating (306) the predicted message based on a criterion and providing (312), utilising an algorithm with trainable weights, feedback symbols as a response to the transmitter if the evaluation indicates the predicted message is not acceptable.

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.