Channel estimation for ZT DFT-s-OFDM
US10498557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2016 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jul 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2647
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A signal modulated according to zero-tail discrete Fourier transform spread orthogonal frequency division multiplexing (ZT DFT-s-OFDM) is received over a channel. The signal is down-sampled into a first sequence including N samples, N corresponding to the number of used subcarriers. The first Nh samples and the last Nt samples are removed from the first sequence, thereby obtaining a second sequence having a length of N-Nh-Nt. The second sequence is correlated with a reference sequence which has a length N-Nh-Nt, and a frequency response of the channel is estimated over the N used subcarriers based on a result of the correlation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.