Hybrid waveform design combining OFDM and cyclic prefix based single carrier for millimeter-wave wireless communication
US9444595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2014 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/26134
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and devices are described for generating a hybrid waveform for data transmission between a transmitting device and a receiving device. The transmitting device may employ an OFDM processing technique to periodically transmit known first pilot symbols mapped from a signal constellation where each signal has equal energy during a first time period and a cyclic prefix based single-carrier (CP-SC) processing technique to transmit data packets and second known pilot symbols during a second time period. Channel estimation is based on first pilot symbols, which are inserted into all subcarriers of OFDM symbol blocks within a specific period. Channel estimation tracking is based on the second pilot symbols interleaved within data packets. The receiving device may be configured to estimate CSI based in part on first pilot symbols and to track the channel estimation based in part on the second pilot symbols in order to provide reliable data detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.