Low overhead aggregation at the physical layer
US7957391B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2008 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Feb 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0083
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A physical layer device distributes a high-speed packet data stream to multiple lower-speed physical channels, and reverses the process to receive a high-speed packet data stream that has been distributed across multiple lower-speed physical channels. The packet data is distributed by removing interpacket gap characters from between packets and using a different control character to delineate packets. Interpacket gap characters can then be used to delineate equal-length frames distributed to each of the multiple physical channels. Each frame consists of a concatenation of fixed-size blocks of packet data. By selecting a frame size larger than the average packet size, overhead on the multiple physical channels can actually be lower than the overhead on the single high-speed channel, allowing the aggregation to achieve line rate operation at the high-speed rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.