Distributed pilot multicarrier signal designed to limit interference affecting said pilots
US7272188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2001 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Aug 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2698
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multicarrier signal, which includes a temporal succession of symbols formed by a set of data elements, each of said data elements modulating a carrier frequency of the signal. The data elements include reference elements called pilots, whereof the value in transmission is known to at least one receiver designed to receive the signal and informative data elements, whereof the value in transmission is not known a priori to the at least one receiver. One of the caffier frequencies is modulated, at a given time, by one of the data elements, being called a carrier. At least one constraint is imposed on the value of at least one of the informative data elements, so as to reduce, in reception, at least one term of interference affecting at least one of the pilots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.