Method and apparatus for phase compensation using phase-tracking reference signal
US10862644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Dec 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/26136
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a reference signal transmission method, a transmitter and a receiver. The reference signal transmission method includes: precoding, by a transmitter, a data stream for user data through a second precoding matrix so as to acquire D virtual data streams; precoding, by the transmitter, the D virtual data streams through a first precoding matrix, and transmitting the D precoded virtual data streams to a receiver via T antenna groups, each antenna group including one or more antenna units or antenna ports having a same phase noise; transmitting, by the transmitter, D demodulation reference signals to the receiver; and transmitting, by the transmitter, M phase-tracking reference signals to the receiver, the M phase-tracking reference signals being adopted to track phase changes in the T antenna groups caused by one or more phase noise sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.