Signalling TDM channel changes
US7277452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | May 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of updating a lookup table associated with a TDM transmit unit which is coupled to a packet network to receive data therefrom, the lookup table mapping packet network contexts to TDM channels. The method includes priming a controller with data for updating the lookup table in advance of the receipt of packets containing data to which the update relates, incorporating a flag in each packet sent over the packet network to the TDM transmit unit, the flag being set to indicate whether or not a packet is the first packet to which the update relates, and detecting the setting of the flag in a first packet and in response updating the lookup table with the update data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.