Method for allocating data and power in a discrete multi-tone communication system
US6259746A · kind A · utility
46Cited by
17References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jan 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0044
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In the present invention, carriers associated with a discrete multi-tone (DMT) communications system (10) are sorted according to bit allocation capacity. The number of bits needed to attain a specified bit rate are then allocated beginning with the carrier having the greatest bit allocation capacity and proceeding toward the carrier having the least bit allocation capacity until all bits to are allocated. Once allocated, the power to any unused bins is reduced. Different subsets of the carriers between line cards can be specified in order to reduce crosstalk between adjacent lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.