Adaptive antenna array system calibration
US6124824A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A code division multiple access time division duplex communication system having an adaptive antenna array station communicates beamformed orthogonal code channels to a remote station. The remote station determines the amplitude and phase components of the received code channels and communicates the information back to the adaptive antenna array station which uses the information plus the beamform of the received signal in an adaptive antenna array station calibration process. By varying one of the beamforms received by the remote station, sufficient data points may be gathered to facilitate accurate calibration. The calibration procedure may be performed while voice or other digital information is communicated between the remote station and the adaptive antenna array station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.