System and method for a multi-frequency upstream channel in a computer network
US7085306B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2001 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Dec 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/7154
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
System and method for providing a multi-frequency upstream transmission channel to a network device. When a headend network entity generates an upstream channel descriptor message, the descriptor message includes at least two upstream frequencies available for upstream transmission, and a frequency hopping descriptor with a frequency-hopping pattern associated with the available frequencies for determining an upstream frequency for upstream transmission. The headend provides a timing reference for determining upstream transmission periods on the frequencies available on the network device. When the headend receives upstream transmission on one of the available upstream frequencies, the headend network entity determines frequency distortions. If the distortions exceed a threshold level, the headend may send a new upstream channel descriptor message that excludes the upstream frequency associated with the high frequency distortions, add a new upstream frequency, or defines a new frequency-hopping pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.