Method and apparatus for providing random access detection in a communication system
US7352825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2003 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Nov 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The disclosed embodiments relate to a communication system and method. The system may comprise a pre-whitening device that applies pre-whitening data to a received signal from an antenna array to produce a pre-whitened signal, at least one detector that is adapted to recognize a pattern corresponding to a request for access in the pre-whitened signal and compute correlation data corresponding to the pattern, and a threshold detector that determines whether the correlation data exceeds a threshold and indicates that an acknowledgement signal should be transmitted if the threshold is exceeded. The method may comprise the acts of creating a pre-whitened signal by applying pre-whitening data to a received signal, detecting a pattern that corresponds to a request for access in the pre-whitened signal, computing correlation data corresponding to the pattern, determining whether the correlation data exceeds a threshold, and indicating that an acknowledgement signal should be transmitted if the threshold is exceeded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.