公开(公告)号：US20240113922A1

公开(公告)日：2024-04-04

申请号：US18524048

申请日：2023-11-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kamel TOURKI ,  Rostom ZAKARIA ,  Merouane DEBBAH

IPC: H04L25/03 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04L25/03828 ,  H04L25/0212 ,  H04L27/2605 ,  H04L27/2639

Abstract: A device may obtain an input symbol sequence for transmission. The device may further obtain a set of DPS sequences associated with Ni highest eigenvalues of a Slepian matrix and a set of extended sequences comprising the set of DPS sequences appended with extension symbols derived based on a convolution of respective DPS sequences. The device may modulate the set of extended sequences based on the input symbol sequence to generate a signal comprising Slepian-based waveform symbol(s). Another device may receive the signal, remove the extension symbols, and demodulate Slepian-based waveform symbol(s) of the signal based on the set of DPS sequences.

公开(公告)号：US20240348483A1

公开(公告)日：2024-10-17

申请号：US18750602

申请日：2024-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kamel TOURKI ,  Merouane DEBBAH ,  Rostom ZAKARIA

IPC: H04L27/26 ,  H03M13/00 ,  H04B7/0456

CPC classification number: H04L27/2639 ,  H03M13/6312 ,  H04B7/0456

Abstract: The present disclosure relates to transmitting devices and receiving devices. An example transmitting device includes a data symbol generation circuit configured to generate a vector of data symbols, a precoding circuit configured to precode the vector of data symbols, and a modulation circuit configured to modulate the precoded vector of data symbols. The modulation circuit modulates the precoded vector of data symbols based on a predetermined modulation matrix to generate a modulated precoded vector of data symbols. The predetermined modulation matrix includes a plurality of discrete prolate spheroidal sequences. The modulated precoded vector of data symbols is transmitted in a Slepian-based waveform to a receiving device.

公开(公告)号：US20220077884A1

公开(公告)日：2022-03-10

申请号：US17527874

申请日：2021-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kamel TOURKI ,  Merouane DEBBAH ,  Rostom ZAKARIA

IPC: H04B1/38 ,  H04L27/26

Abstract: The present invention relates to single carrier modulation schemes, and presents a transmitter device, a receiver device and a transceiver device for a single carrier modulation scheme. The transmitter device is configured to generate a plurality of signature roots for a single carrier transmission, construct a Lagrange matrix and a Vandermonde matrix based on the plurality of signature roots, and generate a single carrier modulated signal based on the Lagrange and the Vandermonde matrix. The receiver device is configured to determine a plurality of signature roots, construct at least two Vandermonde matrices from the plurality of signature roots, and perform a demodulation of a single carrier modulated signal based on the at least two Vandermonde matrices. The transceiver device comprising a transmitter device configured to generate a single carrier modulated signal, and a receiver device configured to perform a demodulation of the single carrier modulated signal.