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.

公开(公告)号：US20240372757A1

公开(公告)日：2024-11-07

申请号：US18770519

申请日：2024-07-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kamel TOURKI ,  Merouane DEBBAH ,  Rostom Zakaria

IPC: H04L25/03 ,  H04L27/26

Abstract: The present disclosure relates to a communication method performed by a transmitter, comprising: obtaining a plurality of data symbols; selecting a set of discrete prolate spheroidal, DPS, sequences to form a Slepian modulation matrix; determining a shaping matrix for precoding the selected set of DPS sequences; applying the shaping matrix to the data symbols to obtain shaped data symbols; modulating the shaped data symbols by applying the Slepian modulation matrix to the shaped data symbols to obtain a modulated sequence of shaped data symbols; and transmitting the modulated sequence of shaped data symbols to a receiving entity.

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：US20180138754A1

公开(公告)日：2018-05-17

申请号：US15869462

申请日：2018-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Afef FEKI ,  Kamel TOURKI ,  Moez DRAIEF ,  Beatrice TOMASI

IPC: H02J50/20 ,  H02J50/80 ,  H02J7/02 ,  H04B5/00 ,  H04W52/02

CPC classification number: H02J50/20 ,  H02J7/025 ,  H02J50/80 ,  H04B5/0037 ,  H04W52/0229 ,  H04W52/0296

Abstract: The present disclosure relates to a wireless communication device and method. The example wireless communication device is configured to communicate with an energy distributor, where the wireless communication device includes a rechargeable energy storage configured to supply the wireless communication device with energy to maintain operation of the wireless communication device. The device also includes a transmitter configured to transmit an energy status message to the energy distributor. The device further includes a receiver configured to extract energy from a wireless signal received by the wireless communication device from an energy provider, the wireless signal received in response to the energy status message transmitted to the energy distributor. The receiver can then recharge the rechargeable energy storage using the energy extracted from the wireless signal.