Repeaters for wireless communication systems
US8358970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Aug 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/15507
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.