Information transmission method and apparatus
US11343045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Apr 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/0205
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An information transmission method and apparatus are provided. The method includes: determining a time domain density of a phase tracking reference signal (PTRS); determining a frequency domain density of the PTRS based on an available bandwidth, a scheduled resource block (RB) or an available RB; mapping the PTRS to one or more orthogonal frequency division multiplexing (OFDM) symbols based on the time domain density and the frequency domain density; and sending a signal that includes the OFDM symbol to which the PTRS is mapped. According to this application, a quantity of PTRSs can be prevented from jumping when a value of scheduled bandwidth is close to a threshold, both accuracy of common phase error estimation and spectral efficiency are taken into consideration, and the PTRSs can be uniformly mapped in the scheduled or available bandwidth, thereby properly configuring the PTRSs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.