Granted Patent B2

US 8,259,704 · App. 11/112,585 · Granted Sep 4, 2012

Abstract

Claims (42)

1. A media gateway, comprising:

a non-packet switching matrix located in the media gateway and operable to switch non-packetized voice data;

a packet switching matrix located in the media gateway and operable to switch packetized voice data;

a plurality of processing resources located in the media gateway and coupled to the non-packet and packet switching matrices, each processing resource processing a substantially equal load of multimedia sessions processed by the media gateway without inactive protecting resources, wherein each of the plurality of processing resources located in the media gateway is configured to perform at least two of: voice encoding/decoding, echo cancellation, and signal conversion on a per session basis and wherein the non-packet switching matrix is operable to switch the non-packetized voice data between non-packet network interfaces of the media gateway and the processing resources located in the media gateway and wherein the packet switching matrix is configured to switch the packetized voice data to and from packet network interfaces of the media gateway and the processing resources located in the media gateway; and

a control module located in the media gateway and coupled to the plurality of processing resources and operable to receive per session operational status data from the plurality of processing resources and, in response to receiving per session status data indicative of a failed processing resource, to redistribute the load of voice sessions of the failed processing resource among all of the remaining operational processing resources, wherein the media gateway is deployed in conjunction with a media gateway controller.

2. The media gateway of claim 1 , further comprising a plurality of network interface units coupling the non-packet switching matrix to a network.

3. The media gateway of claim 1 , further comprising a plurality of network interface units coupling the packet switching matrix to a network.

4. The media gateway of claim 1 , wherein the plurality of processing resources are operable to perform data encapsulation.

5. The media gateway of claim 1 , further comprising a resource management module operable to maintain the state of the re-distributed multimedia sessions.

6. A method of distributing processing load among a plurality of processing resources, comprising:

distributing processing load of a plurality of in-progress media sessions substantially equally among all of a plurality of processing resources within a media gateway, wherein each of the plurality of processing resources located in the media gateway is configured to perform at least two of: voice encoding/decoding, echo cancellation, and signal conversion on a per session basis and wherein the media gateway includes a packet switching matrix for switching packet voice data and a non-packet switching matrix for switching non-packetized voice data, both coupled to the processing resources and to network interfaces that couple the media gateway to external networks, and wherein the media gateway is deployed in conjunction with a media gateway controller, wherein the non-packet switching matrix is operable to switch the non-packetized voice data between non-packet network interfaces of the media gateway and the processing resources within the media gateway and wherein the packet switching matrix is configured to switch the packetized voice data to and from packet network interfaces of the media gateway and the processing resources within the media gateway;

at a control module within the media gateway:

receiving operational status of the plurality of processing resources identifying at least one failed processing resource; and

redistributing processing load of the media sessions formerly processed by the at least one failed processing resource substantially evenly among all of the remaining operational processing resources on a per session basis.

7. The method of claim 6 , further comprising:

receiving voice session data of a first format at a first port;

converting the voice session data to a second format at one of the plurality of processing resources;

switching the voice session data to a second port; and

sending the converted voice session data from the second port to a network.

8. The method of claim 7 , further comprising performing echo cancellation on the voice session data.

9. The method of claim 7 , further comprising performing data encapsulation on the voice session data.

10. The method of claim 7 , further comprising performing voice encoding/decoding on the voice session data.

11. The method of claim 6 , further comprising:

receiving non-packetized voice session data of a first format at a first port;

converting the voice session data to a packetized second format at one of the plurality of processing resources;

switching the voice session data to a second port; and

sending the converted voice session data from the second port to a network.

12. The method of claim 6 , further comprising:

receiving voice session data at a first port;

processing the voice session data at a first one of the plurality of processing resources;

processing the voice session data at a second one of the plurality of processing resources;

switching the voice session data to a second port; and

sending the processed voice session data from the second port to a network.

13. The method of claim 6 , further comprising notifying the remaining operational processing resources of a pending processing load redistribution.

14. The method of claim 6 , further comprising monitoring the per session status of the plurality of processing resources.

15. The method of claim 6 , further comprising receiving per session status data comprising utilization data from the plurality of processing resources.

16. The method of claim 6 , further comprising receiving status data comprising data identifying a failed resource and associated impacted sessions from the plurality of processing resources.

17. The method of claim 6 , further comprising:

receiving packetized voice session data of a first format at a first port; converting

the voice session data to a non-packetized second format at one of the plurality of processing resources;

switching the voice session data to a second port; and

sending the converted voice session data from the second port to a network.

Assignments (18)