Signal synthesis method and apparatus under diversity reception
US6118806A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1999 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | May 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus for combining signals includes RAKE receivers 10, 20, noise-power measuring apparatuses 30, 40, and a branch combiner 50. The RAKE receivers 10, 20 are the same in number as the antenna branches, and each RAKE receiver combines received signals by using a weight based on an amplitude of each received signal. Each of the noise-power measuring apparatus 30, 40 measures a sum of an interference power and a background-noise power in an output signal from each RAKE receiver. The branch combiner 50 multiplies the output signal from each RAKE receiver by an inverse of the sum measured by the noise-power measuring apparatus, and then adds up the value obtained by each multiplication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.