Communication system transmitting modulated orthogonal carries with service units that scan spectrum to identify assigned band
US6477354B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1999 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Sep 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning method for establishing communication between a head end and a plurality of remote units in a multi-point to point communication system is described. The method includes transmitting information from the head end to the plurality of remote units in a plurality of regions of a first frequency bandwidth, each of the regions having at least one control channel associated therewith, identification information corresponding to each of the remote units of the plurality of remote units being periodically transmitted from the head end on the at least one control channel of one of the plurality of regions of the first frequency bandwidth. The method further includes scanning, at each of the remote units, the at least one control channel of each of the plurality of regions in the first frequency bandwidth to detect identification information corresponding to each of the remote units to identify a particular region of the plurality of regions that each of the remote units is to use for receiving information from the head end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.