Adaptive antenna method and apparatus
US6952455B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2000 |
| Grant date | Oct 4, 2005 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0658
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmitter generates a pair of test weight vectors, each vector comprised of a plurality of complex entries, with each entry corresponding a different one of a plurality of antennae. The first and second complex weight vectors are applied to a dedicated pilot signal during alternate time intervals. During each time interval, the average of the first and second complex weight vectors is applied to the data traffic transmitted by the transmitter. A receiver alternately receives the pilot signal as multiplied by the first and second weight vectors as described above. The receiver determines which of the weighted pilot signals resulted in a stronger signal received at the mobile and, based upon this determination, transmits feedback. The transmitter receives the feedback and updates the first and second weights accordingly
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.