Digital repeater having bandpass filtering, adaptive pre-equalization and suppression of natural oscillation
US8625658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2010 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Nov 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/15585
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Repeaters, event those having digital processing, exist. The significant drawback of these digital repeaters is that the computational complexity or the processing speed has to be very high in order to guarantee, particularly when compensating for echo, that the necessary delay does not excessively impair the performance. The aim of the invention is to provide a structure of the repeater in which the computational complexity is reduced without this reduction having a negative effect on the performance during signal filtering and/or suppression of natural oscillation. To this end, the invention provides that in order to carry out bandpass filtering, adaptive pre-equalization and suppression of the natural oscillation, the components of the repeater in the uplink branch and downlink branch are arranged in a designated sequence, whereby duplex filters are used for coupling both repeater branches to the antennas. In addition, only one reconfiguration in the modules at the user is necessary in order to adapt to user-specific requirements. The invention is used in the field of digital repeaters for data systems technology and telecommunications technology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.