Method and apparatus for determining whether a received signal includes a desired signal
US7035319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Oct 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0891
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of and data processing system for determining whether a received signal in a Code Division Multiple Access system that uses an antenna array includes a desired signal with a predetermined timing offset, the method including correlating 607 the received signal with a spreading code having the predetermined timing offset and corresponding to the desired signal at each element of the antenna array to provide correlations; determining 613 a power distribution, such as a DFT, corresponding to the correlations that is a function of a direction of arrival of the received signal; comparing 614 a magnitude of the power distribution at a first direction of arrival to a threshold that has a value that varies with the direction of arrival; and when the threshold is satisfied, determining 619 or indicating that the desired signal is likely present at the first direction of arrival.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.