Echo profile probe
US7542411B1 · kind B1 · utility
9Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | May 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an orthogonal frequency division multiplex (OFDM) communication network, a node transmits an echo profile probe to other nodes in the network. The echo profile probe is a message that allows characterization of the unique echo profile through the communication channel between each node pair. The echo profile is used to calculate the cyclic prefix length needed for optimum communication from one node to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.