Method and apparatus for initiating an upward signaling control channel in a fast packet network
US6463035B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1998 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Dec 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Router apparatus for initiating a control channel within a protocol stack comprises a receiving protocol stack, a controller and an operating system. The controller is programmed to respond to receipt of a message, for example a congestion message, from a fast packet network such as a frame relay or cell relay network to generate a pass through packet message requesting the opening of an upward control channel between layer N and layer N+2 of the protocol stack, where typically layer N is layer 2 of a frame relay protocol and layer N+2 is layer 4 of a TCP protocol. Layer 4 may refuse to open the channel but once a channel is opened, for example, in the presence of congestion, a data flow control may be initiated between destination intelligent terminals when congestion is sensed in the fast packet network. The data flow control channel may have the purpose of segmentation control, compression control or data presentation rate control. The upward N+2 pass through packet control channel may have other applications including switching control and encryption control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.