Methods and receivers that estimate multi-path delays by removing signal rays from a power-delay profile
US7212591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Jul 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7117
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for estimating a plurality of delay values in a multi-path communication signal. Correlation values are generated that correspond to a plurality of delay values associated with the multi-path communication signal. A first power-delay profile (PDP) sequence is produced from the correlation values and is used to estimate a first delay value. A first reference PDP sequence is generated based on a predefined PDP sequence and the first PDP sequence. The first reference PDP sequence is removed from the first PDP sequence so as to remove at least a portion of the contributions to the first PDP sequence from the first delay value, and to provide a second PDP sequence. A second value is estimated based on the second PDP sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.