ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,102, issued on April 7, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Signal transmission method and apparatus" was invented by Fengwei Liu (Chengdu, China) and Minghui Xu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 betw...