System and method for hybrid contention/polling protocol collison resolution used backoff timers with polling
US5684802A · kind A · utility
17Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1995 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/403
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The system and method provide for efficiently resolving collisions in an environment where a transmitting device cannot hear collisions without a headend control station/control device, i.e., master, repeating transmission of all upstream frames in the downstream direction. This invention also prevents additional collisions from occurring between a device that is retransmitting and a device that is transmitting a packet for the first time. Further, the present invention allows continued utilization of a channel by other devices while contending devices are processing collision resolution procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.