A method and apparatus for interference cancellation in wireless receivers
Abstract
A method and apparatus for a multi-branch wireless receiver for periodically sampling first and second received signals corresponding to first and second receiver branches at first and second sample times to generate offset sample streams. The offset sample streams are then combined in a combining circuit to reduce interference present in the received signals. In an exemplary embodiment, a multi-branch wireless receiver includes an offset circuit to generate first and second offset sample times. A first sampler periodically samples the first received signal at the first sample time to generate a first sample stream and a second sampler periodically samples the second received signal at the second sample time to generate a second sample stream offset from the first sample stream. The combining circuit comprises a RAKE receiver that reduces the interference by scaling and combining despread values generated from the offset sample streams.
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Projected expiry passed 24 May 2025, 1.3 years ago.
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- Filed
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9 members in 6 offices
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 85878704 | United States of America | A | |
| 2005005584 | European Patent Office (EPO) | W |
Members9
| Document | Office | Kind | |
|---|---|---|---|
| US2005271123A1 | United States of America | A1 | |
| WO2005119934A1 | World Intellectual Property Organization (WIPO) | A1 | |
| EP1751884A1 | European Patent Office (EPO) | A1 | |
| JP2008502178A | Japan | A | |
| EP1751884B1 | European Patent Office (EPO) | B1 | |
| AT460779T | Austria | T | |
| ATE460779T1This record | Austria | T1 | |
| DE602005019879D1 | Germany | D1 | |
| US7924909B2 | United States of America | B2 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 5770241
Titles2
- German
- VERFAHREN UND VORRICHTUNG ZUR INTERFERENZUNTERDRÜCKUNG BEI DRAHTLOSEN EMPFÄNGERN
- English
- METHOD AND DEVICE FOR INTERFERENCE SUPPRESSION IN WIRELESS RECEIVERS
Classification
- CPC, 2
- H04B7/0891
- H04B7/0848
- IPC, 1
- H04B7 08