The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2026
Filed:
Sep. 29, 2023
Huawei Technologies Co., Ltd., Shenzhen, CN;
Fengwei Liu, Chengdu, CN;
Minghui Xu, Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
This application discloses a signal transmission method and apparatus, to implement signal transmission by using a multi-stream DFT-s-OFDM waveform. The method includes: precoding N streams of signals based on a first codebook before sending, to obtain N1 precoded signals, where a quantity of non-zero elements in each row of the first codebook is 1, the first codebook causes a phase difference between two of the N streams of signals, and N and N1 are integers greater than 1; and sending the N1 precoded signals. A transmitting end introduces a phase offset between two transmit antenna ports in a precoding process, so that equivalent inter-stream interference is optimal after channel equalization is performed at a receiving end, to improve demodulation performance of the receiving end.