Radio base station
US10020596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0897
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A base station performs the combination of digital precoding and analog beamforming. Transceiving antenna elements are classified into antenna groups. The analog beamformer includes branches corresponding to the antenna groups. Each branch includes sub-branches, and each sub-branch is connected to one antenna element. In self-calibration, after pilot signals are transmitted from antenna elements belonging to an antenna group and are received by antenna elements belonging to another antenna group, it is identifiable as to which antenna element transmitted each pilot signal. After pilot signals are received by antenna elements belonging to an antenna group, it is identifiable as to which antenna element received each pilot signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.