Channel access method for powerline carrier based media access control protocol
US7570656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A novel and useful media access control (MAC) protocol that is intended for use over noisy shared media channels. The MAC protocol provides layer 2 functionality over a network using a shared medium including a backoff mechanism for CSMA/CA channel access, link addressing that reduces the overhead of long MAC addresses, a flooding scheme having controlled exposure for broadcast transmissions, multicast transmissions using selective ACKs, implementation of traffic prioritization using an adaptive backoff scheme, a second layer repeater establishment process and multi-packet transport for short packets and fragmentation for long packet transport.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.