Method and apparatus for digital signal reception
US8457252B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2007 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | May 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2695
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a digital signal reception method and apparatus. Said digital signal receiver comprises a Common Phase Error removal unit for eliminating CPE contained in the received signal by using CSI corrected pilot sub-carriers; a channel estimation unit for estimating channel state information of the received signal after removing the CPE and feed the CSI to the CPE removal unit, and a means for generating the CSI corrected pilot sub-carriers by multiplying the CSI with 1 or −1 according to positive or negative sign of the local pilot sub-carriers only in response to continual pilots of the received signal. Said method comprises estimating the CSI of the received digital signal after removing CPE; and eliminating the CPE of the received signal by using the CSI corrected pilot sub-carriers, whereby a low complexity and high accuracy are achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.