Method and apparatus for establishing a distributed conference bridge

• US 7,920,488 B2
• Filed: 03/15/2005
• Issued: 04/05/2011
• Est. Priority Date: 03/15/2005
• Status: Expired due to Fees

• Current Assignee: Nokia of America Corporation (Nokia Corporation)
• Original Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Inventors: van der Gaast, Tjietse
• Primary Examiner(s): Shah; Chirag G
• Assistant Examiner(s): Zhou; Yong
• Application Number:
  US11/080,716
• Publication Number:
  US 20060209728A1
• Time in Patent Office: 2,212 Days
• Field of Search: 348/14.08, 370/260, 370/261, 370/262, 379/202.01, 704/500, 709/204
• US Class Current: 370/261
• CPC Class Codes: H04L 12/1827 Network arrangements for conference optimisation or adaptation

Abstract

The invention comprises a method and apparatus for establishing a conference bridge. Specifically, the method comprises obtaining at least one request for establishing the conference bridge where the conference bridge is operable for enabling communications between a plurality of user devices, and determining a configuration for establishing the conference bridge, the configuration comprising at least one sub-bridge wherein each of the at least one sub-bridge comprises a communication path between a first combining user device and one of a second combining user device and a non-combining user device, wherein the configuration tends to minimize a bandwidth required for supporting communications between the plurality of user devices.

Claims

1. A method for establishing a distributed conference bridge for communications between a plurality of user devices, comprising:

using a processor for;

determining, for each of a plurality of pairs of said user devices, a weighting factor associated with a communication path between said user devices of said pair of user devices;

determining a configuration for said distributed conference bridge using said weighting factors, wherein said configuration comprises a plurality of communication paths between a respective plurality of pairs of said user devices, wherein at least one of said communication paths of said configuration comprises a communication path between a first combining user device and one of a second combining user device and a non-combining user device; and

initiating establishment of said distributed conference bridge according to said configuration, comprising;

for each combining user device;

generating a sub-bridge establishment message for configuring the combining user device according to said configuration, and transmitting said sub-bridge establishment message toward said combining user device.

2. The method of claim 1, wherein each of said weighting factors is computed using at least one of a distance between said user devices of said pair of user devices, a path delay associated with said communication path between said user devices of said pair of user devices, respective locations of said user devices of said pair of user devices, and respective device characteristics of said user devices of said pair of user devices.

3. The method of claim 1, wherein, for each combining user device, said sub-bridge establishment message is for configuring said combining user device to perform at least one of audio switching, audio mixing, video switching, and video mixing.

4. The method of claim 1, wherein said initiating establishment further comprises:

for each non-combining user device, generating a sub-bridge establishment message for configuring the non-combining user device according to said configuration, and transmitting said sub-bridge establishment messages toward said non-combining user device.

5. A non-transitory computer readable storage medium storing a software program, that, when executed by a computer, causes the computer to perform a method for establishing a distributed conference bridge for communications between a plurality of user devices, the method comprising:

determining, for each of a plurality of pairs of said user devices, a weighting factor associated with a communication path between said user devices of said pair of user devices;

determining a configuration for said distributed conference bridge using said weighting factors, wherein said configuration comprises a plurality of communication paths between a respective plurality of pairs of said user devices, wherein at least one of said communication paths of said configuration comprises a communication path between a first combining user device and one of a second combining user device and a non-combining user device; and

initiating establishment of said distributed conference bridge according to said configuration, comprising;

for each combining user device;

generating a sub-bridge establishment message for configuring the combining user device according to said configuration, and transmitting said sub-bridge establishment message toward said combining user device.

6. The non-transitory computer readable storage medium of claim 5, wherein each of said weighting factors is computed using at least one of a distance between said user devices of said pair of user devices, a path delay associated with said communication path between said user devices of said pair of user devices, respective locations of said user devices of said pair of user devices, and respective device characteristics of said user devices of said pair of user devices.

7. The non-transitory computer readable storage medium of claim 5, wherein, for each combining user device, said sub-bridge establishment message is for configuring said combining user device to perform at least one of audio switching, audio mixing, video switching, and video mixing.

8. The non-transitory computer readable storage medium of claim 5, wherein said initiating establishment further comprises:

for each non-combining user device, generating a sub-bridge establishment message for configuring the user device according to said configuration, and transmitting said sub-bridge establishment messages toward said non-combining user device.

9. An apparatus for establishing a distributed conference bridge for communications between a plurality of user devices, comprising:

means for determining, for each of a plurality of pairs of said user devices, a weighting factor associated with a communication path between said user devices of said pair of user devices;

means for determining a configuration for said distributed conference bridge using said weighting factors, wherein said configuration comprises a plurality of communication paths between a respective plurality of pairs of said user devices, wherein at least one of said communication paths of said configuration comprises a communication path between a first combining user device and one of a second combining user device and a non-combining user device; and

means for initiating establishment of said distributed conference bridge according to said configuration, wherein initiating establishment of said distributed conference bridge comprises;

for each combining user device;

generating a sub-bridge establishment message for configuring the combining user device according to said configuration, and transmitting said sub-bridge establishment message toward said combining user device.

10. The apparatus of claim 9, wherein each of said weighting factors is computed using at least one of a distance between said user devices of said pair of user devices, a path delay associated with said communication path between said user devices of said pair of user devices, respective locations of said user devices of said pair of user devices, and respective device characteristics of said user devices of said pair of user devices.

11. The apparatus of claim 9, wherein said initiating establishment further comprises:

for each non-combining user device;

generating, a sub-bridge establishment message for configuring the non-combining user device according to said configuration, and transmitting said sub-bridge establishment message toward said non-combining user device.

12. The apparatus of claim 9, wherein, for each combining user device, said sub-bridge establishment message is for configuring said combining user device to perform at least one of audio switching, audio mixing, video switching, and video mixing.

13. A method for determining a distributed configuration for a conference bridge for supporting communications between a plurality of user devices, comprising:

using a processor for;

determining, for each of a plurality of pairs of said user devices, a distance between user devices of the pair of user devices;

determining a configuration for the distributed conference bridge using the determined distances, wherein the configuration comprises a plurality of communication paths between a respective plurality of pairs of said user devices, wherein at least one of said communication paths of said configuration comprises a communication path between a first combining user device and one of a second combining user device and a non-combining user device; and

initiating establishment of said distributed conference bridge according to said configuration, comprising;

for each combining user device;

generating a sub-bridge establishment message for configuring the combining user device according to said configuration, and transmitting said sub-bridge establishment message toward said combining user device.

14. An apparatus for determining a distributed configuration for a conference bridge for supporting communications between a plurality of user devices, comprising:

means for determining, for each of a plurality of pairs of said user devices, a distance between user devices of the pair of user devices;

means for determining a configuration for the distributed conference bridge using the determined distances, wherein the configuration comprises a plurality of communication paths between a respective plurality of pairs of said user devices, wherein at least one of said communication paths of said configuration comprises a communication path between a first combining user device and one of a second combining user device and a non-combining user device; and

means for initiating establishment of said distributed conference bridge according to said configuration, comprising;

for each combining user device;

generating a sub-bridge establishment message for configuring the combining user device according to said configuration, and transmitting said sub-bridge establishment message toward said combining user device.