Scalable, self-organizing packet radio network having decentralized channel management providing collision-free packet transfer
US5682382A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1995 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Sep 5, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A scalable, self-organizing packet radio network providing decentralized collision-free packet transfer is disclosed having spread-spectrum transmitters and receivers for eliminating contention from background noise, spread-spectrum receivers with multiple tracking and despreading channels for eliminating contention from multiple transmitters contending for the same receiver at the same time, and a processor implemented scheduling technique for eliminating contention arising both from self-contention and from comparatively-high power transmissions of neighboring stations. In the preferred embodiments, the processor implemented scheduling technique randomly provides a unique schedule of transmit and receive opportunities for each station. In accord therewith, each station obliges itself to listen and publishes the unique schedule of each station to every neighboring station. To avoid self-contention, a packet is transmitted to an intended station at a time that corresponds to the first available listening opportunity thereof that is long enough to receive the packet. To avoid contention arising from comparatively-high power transmissions of neighboring stations, a packet is transmit…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.