Combining coefficient estimation apparatus capable of compensating for phase noise of OFDM system and combining coefficient estimation method thereof
US7532689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jul 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0842
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for receiving OFDM signals via at least two antennae is disclosed. The apparatus includes a converter for converting a plurality of OFDM symbols received via each antenna to a plurality of sub carrier signals, wherein each sub carrier signal corresponds to one of a plurality of sub carriers; a combining unit for combining the sub carrier signals, which are obtained via each antenna and correspond to a specified sub carrier, based on a combining coefficient vector to form a combined signal; a recovery unit for recovering a desired signal based on the combined signal corresponding to the specified sub carrier; and a combining coefficient estimation unit for updating the combining coefficient vector corresponding to the specified sub carrier based on the desired signal corresponding to the specified sub carrier and the sub carrier signals, which correspond to the sub carrier and are obtained via each antennae.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.