Multi-channel ranging for a cable modem
US8111711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2008 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | May 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6583
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one example, a Cable Modem Termination System (CMTS) sends first bandwidth allocation messages to a first upstream transmit interface on a cable modem and send second bandwidth allocation messages to a second upstream transmit interface on the cable modem. The bandwidth allocation messages indicate transmit windows for the cable modem to range over the interfaces. The transmit windows included in the first bandwidth allocation messages are spaced based on receipt of ranging requests from the second upstream transmit interface, and the transmit windows included in the second bandwidth allocation messages are spaced based on receipt of ranging requests from the first upstream transmit interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.