Method and apparatus to exchange channel information
US7593347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | May 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Briefly, a method and apparatus to exchange channel state information between two or more stations are provided. The channel state information may be used to adapt a power, a transmission rate and a modulation scheme of a transmitted signal. In some embodiments or the invention, a method comprises adapting a physical layer parameter based on exchanged channel information and exchanging over a channel the adapted physical layer parameter. In particular, in some embodiments of the invention, the physical layer parameter includes a bit and power loading parameter and the method comprises calculating a bit and power loading parameter during receiving a data packet; and applying the calculated bit and power loading parameter to a portion of an exchanged data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.