System and method for receive diversity combining
US11101559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2020 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Jul 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18515
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Receive diversity combining uses signals received at multiple antennas and combine them to obtain a higher overall signal to noise ratio. Multi-level ranking is employed to determine the weight assigned to each channel and, once the channels are weighted the weighted signals are added together. In a two-level example the first level ranks the signals according to fidelity of the signal. This is done by calculating cross correlation coefficients, where highest coefficient indicates best fidelity. The second level ranks the channels according to peak to average power ratio. The lowest value indicates the best channel. The two rankings are combined to generate the weight coefficient for each channel prior to combining the signals from all the channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.