RSVP support for upstream traffic
US6031841A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Dec 23, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Dec 23, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/17336
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for managing MAC messages is provided which supports dynamic resource reservation for upstream data traffic in a broadband cable system. Three specialized MAC management messages of Dynamic Session Addition, Dynamic Session Deletion, and Dynamic Session Acknowledgment are used to control setting of a filter spec parameter in a cable modem. The present invention provides upstream bandwidth resource reservation which allows packet scheduling to occur at a CMTS, and packet classification to occur at a cable modem. Such an arrangement allows the RSVP protocol to be adapted for use at the OSI protocol layer of a typical cable modem, thereby improving efficiency of network bandwidth/resource allocation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.