Multipath communication methods and apparatuses
US7177369B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2002 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods, apparatuses and systems are provided for identifying at least one multipath transmission delay within a reverse path data signal, determining at least one forward path pre-equalization parameter based on the transmission delay, and modifying a forward path data signal based on the forward path pre-equalization parameter. A reverse link transmission is used to help characterize the multipath delays that may exist between communicating devices. The reverse path data signal can include a training sequence or other like known/substantially-known data that can be analyzed to detect transmission delays, especially delays that extend beyond established guard intervals. Such pre-equalization techniques can be advantageously combined, for example, with antenna arrangements that support transmission diversity, spatial division transmission, and/or other like techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.