Uplink doppler metric estimation based on a downlink reference signal
US11310021B2 · kind B2 · utility
1Cited by
1References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2020 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jul 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0456
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and devices for wireless communications are described. A base station may transmit repetitions of a tracking reference signal to a user equipment (UE). The UE may determine a Doppler frequency for the downlink channel by measuring the repetitions of the tracking reference signal. The UE may transmit an indication of the downlink Doppler frequency to the base station. The base station may determine the uplink Doppler frequency based on the downlink Doppler frequency. The base station may use the uplink Doppler frequency to select an uplink demodulation reference signal (DMRS) configuration for the UE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.