Beamforming apparatus and method in a smart antenna system
US7671800B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2006 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Dec 6, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A DOA estimating apparatus and method in a smart antenna system using a fixed beamforming scheme are provided. An uplink weight for a received uplink signal is calculated and a projection matrix of an interference signal is generated using the uplink weight. A covariance matrix of the interference signal is generated using the projection matrix of the interference signal, and power of the received signal and power of the interference signal are calculated using the covariance matrix of the interference signal and a covariance matrix of the received signal. A DOA is estimated based on the difference between the received signal power and the interference power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.