公开(公告)号：US20220217019A1

公开(公告)日：2022-07-07

申请号：US17703705

申请日：2022-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yoav Levinbrook ,  Doron Ezri ,  Nadav Basson ,  Jie Fu

IPC: H04L25/02 ,  H04L5/00

Abstract: A device is configured to calculate a set of channel estimates for a plurality of sub-carriers based on a plurality of pilot-symbols and/or data-symbols carried by said plurality of sub-carriers; calculate a set of equalizers for the plurality of sub-carriers based on the set of channel estimates; perform an equalization on a plurality of data-symbols using the set of equalizers for obtaining a plurality of equalized symbols; perform a soft-slicing or hard-slicing procedure comprising obtaining a plurality of estimated symbols based on the equalized symbols; calculate at least one diagonal-loaded interference-plus-noise covariance matrix, based on the set of estimated symbols; de-map the plurality of data symbols to soft-bits, based on the at least one diagonal-loaded interference-plus-noise covariance matrix, the set of channel estimates or an updated version thereof; and feed the soft-bits to a channel decoder.

公开(公告)号：US12015489B2

公开(公告)日：2024-06-18

申请号：US17521456

申请日：2021-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shimon Shilo ,  Nadav Basson ,  Ezer Melzer ,  Yaron Ben-Arie ,  Mor Reich ,  Doron Ezri

IPC: H04L1/1812 ,  H04L1/08

CPC classification number: H04L1/1819 ,  H04L1/08

Abstract: A communication transmitter retransmits a Medium Access Control (MAC) Protocol Data unit (MPDU) to a communication receiver over a communication channel using a Hybrid Automatic Repeat reQuest (HARQ) retransmission scheme. The MPDU includes a plurality of information bits. The communication transmitter includes a processor configured to determine the MPDU to be retransmitted based on a Block ACK frame received from the communication receiver, the Block ACK frame indicating previously correctly decoded MPDUs at the communication receiver, and to generate a bit sequence to be transmitted to the communication receiver, wherein the bit sequence comprises the plurality of information bits. The communication transmitter further comprises a communication interface configured to transmit the bit sequence to the communication receiver for retransmitting the MPDU to the communication receiver.

公开(公告)号：US11784852B2

公开(公告)日：2023-10-10

申请号：US17703705

申请日：2022-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yoav Levinbook ,  Doron Ezri ,  Nadav Basson ,  Jie Fu

IPC: H04L25/02 ,  H04L5/00

CPC classification number: H04L25/0224 ,  H04L5/0046 ,  H04L5/0048

Abstract: A device is configured to calculate a set of channel estimates for a plurality of sub-carriers based on a plurality of pilot-symbols and/or data-symbols carried by said plurality of sub-carriers; calculate a set of equalizers for the plurality of sub-carriers based on the set of channel estimates; perform an equalization on a plurality of data-symbols using the set of equalizers for obtaining a plurality of equalized symbols; perform a soft-slicing or hard-slicing procedure comprising obtaining a plurality of estimated symbols based on the equalized symbols; calculate at least one diagonal-loaded interference-plus-noise covariance matrix, based on the set of estimated symbols; de-map the plurality of data symbols to soft-bits, based on the at least one diagonal-loaded interference-plus-noise covariance matrix, the set of channel estimates or an updated version thereof; and feed the soft-bits to a channel decoder.