Calibration method and apparatus
US11121781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2020 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | May 29, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/085
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This application provides a calibration method: receiving, by a control apparatus of an RRU, resource configuration information, where a time-frequency resource indicated by the resource configuration information is used to send and receive a calibration signal between the RRU and n other RRUs, the n other RRUs are RRUs in a calibration path topology, a quantity of hops of a calibration path between the RRU and each of the n other RRUs is 1; controlling, based on the resource configuration information, the RRU to send and receive a calibration signal on the time-frequency resource; obtaining m groups of path information based on the calibration signal; obtaining m calibration coefficients based on the m groups of path information; and compensating M channels of the RRU by using the m calibration coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.