公开(公告)号：US10756865B2

公开(公告)日：2020-08-25

申请号：US16115296

申请日：2018-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin Xue ,  Ju Cao ,  Le Liu ,  Ningjuan Wang ,  Wei Lin

IPC: H04L5/00 ,  H04L27/26 ,  H04L25/03 ,  H04B7/0452

Abstract: A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

公开(公告)号：US11923888B2

公开(公告)日：2024-03-05

申请号：US17509984

申请日：2021-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Teyan Chen ,  Ju Cao ,  Tao Wu

IPC: H04B7/00 ,  H04B1/525 ,  H04L5/14

CPC classification number: H04B1/525 ,  H04L5/14

Abstract: Embodiments of this application disclose a full-duplex self-interference cancellation method and apparatus. The full-duplex self-interference cancellation method may be applied to the field of radio frequency self-interference cancellation in a full-duplex scenario. The full-duplex self-interference cancellation method is implemented by a full-duplex self-interference cancellation apparatus with self-interference reconstruction modules of two levels, and the full-duplex self-interference cancellation apparatus is implemented by a terminal. This greatly reduces hardware implementation complexity and costs of the second self-interference reconstruction module, and improves a full-duplex self-interference cancellation capability.

公开(公告)号：US20240171211A1

公开(公告)日：2024-05-23

申请号：US18424444

申请日：2024-01-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Teyan Chen ,  Ju Cao ,  Tao Wu

IPC: H04B1/525 ,  H04L5/14

CPC classification number: H04B1/525 ,  H04L5/14

Abstract: Embodiments of this application disclose a full-duplex self-interference cancellation method and apparatus. The full-duplex self-interference cancellation method may be applied to the field of radio frequency self-interference cancellation in a full-duplex scenario. The full-duplex self-interference cancellation method is implemented by a full-duplex self-interference cancellation apparatus with self-interference reconstruction modules of two levels, and the full-duplex self-interference cancellation apparatus is implemented by a terminal. This greatly reduces hardware implementation complexity and costs of the second self-interference reconstruction module, and improves a full-duplex self-interference cancellation capability.