Receiver gain management
US7292830B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2004 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Oct 31, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/345
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Noise floor searching is performed for a cellular base station to increase accuracy of receiver gain estimates. This allows adjustment of gain in a radio module to account for gain in front-end devices, and achieve a desired overall receiver target gain. The gain of the RF front-end devices is estimated based on the difference between measured Rx noise power at a receive port of the radio module and the noise floor of the radio module. In one embodiment, frequency sweeping across a receive band using a narrowband filter is done to search for minimum noise power. Interference detection may also be employed to increase awareness of any interfering signals that are presented at a configured channel. It is determined whether the interference is wideband or narrowband.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.