VARIABLE LATENCY JITTER BUFFER BASED UPON CONVERSATIONAL DYNAMICS

• US 20100265834A1
• Filed: 04/17/2009
• Published: 10/21/2010
• Est. Priority Date: 04/17/2009
• Status: Abandoned Application

• Current Assignee: Avaya Incorporated
• Original Assignee: Avaya Incorporated
• Inventors: Michaelis, Paul Roller, Mohler, David
• Application Number:
  US12/426,023
• Publication Number:
  US 20100265834A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 49/9023 for implementing a jitter-buffer
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/80 Responding to QoS

Abstract

Methods, devices, and systems for balancing latency and voice quality during a communication session are provided. More specifically, mechanisms for monitoring parameters indicative of conversational dynamics and adjusting jitter buffer size based thereon are described. This allows latency to increase if the conversation is not highly interactive and decrease if a more interactive conversation is desired.

Claims

1. A method, comprising:

monitoring at least one parameter indicative of conversational dynamics for a communication session between at least a first and second communication session participant using a first and second communication device, respectively; and

adjusting a capacity of a jitter buffer used in the communication session based on the monitored at least one parameter.

2. The method of claim 1, wherein the monitored at least one parameter comprises a user input from one or more of the participants.

3. The method of claim 2, wherein the user input comprises voice activity and wherein a relative voice activity of the first participant as compared to at least the second participant is used as a basis for adjusting the capacity of the jitter buffer.

4. The method of claim 2, wherein the user input comprises a system setting configured by a user in connection with the communication session.

5. The method of claim 2, wherein the user input comprises a user selection entered at a communication device indicating a particular communication feature is desired.

6. The method of claim 5, wherein the communication feature comprises a mute feature.

7. The method of claim 1, wherein the at least one parameter comprises one or more of the following:

(i) a behavior of the first participant, (ii) a behavior of the second participant, (iii) voice activity of a participant, (iv) relative voice activity of a participant as compared to other participants, (v) timing of participant voice activity, (vi) frequency of participant voice activity, (vii) whether a participant is employing a display to stream text from the communication session, (viii) whether a participant is placing the communication session on hold periodically, and (ix) anticipated behaviors based on materials related to the communication session.

8. The method of claim 1, wherein the jitter buffer is initially set at a first capacity, the method further comprising:

determining that the communication session interactivity is increasing; and

in response to determining that the communication session interactivity is increasing, adjusting the capacity of the jitter buffer to a second capacity that is smaller than the first capacity.

9. The method of claim 1, wherein the jitter buffer is initially set at a first capacity, the method further comprising:

determining that the communication session interactivity is decreasing; and

in response to determining that the communication session interactivity is decreasing, adjusting the capacity of the jitter buffer to a second capacity that is larger than the first capacity.

10. The method of claim 1, wherein the jitter buffer is initially set at a first capacity and wherein adjusting the jitter buffer capacity comprises changing the capacity of the jitter buffer to a second capacity during the communication session, wherein the second capacity is different from the first capacity.

11. The method of claim 10, further comprising adjusting the jitter buffer capacity from the second capacity to a third capacity during the communication session, wherein the third capacity is different from the first and second capacities.

12. A computer readable medium encoded with processor executable instructions operable to, when executed, perform the method of claim 1.

13. A communication device, comprising:

a jitter buffer adapted to collect data packets from a communication session; and

a latency and QoS optimization agent operable to monitor at least one parameter indicative of conversational dynamics for the communication session and adjust a capacity of the jitter buffer based on the monitored at least one parameter.

14. The device of claim 13, wherein the monitored at least one parameter comprises a user input from a participant of the communication session.

15. The device of claim 14, wherein the user input comprises voice activity and wherein a relative voice activity of a first participant as compared to at least a second participant is used as a basis for adjusting the capacity of the jitter buffer.

16. The device of claim 14, wherein the user input comprises a system setting configured by a user in connection with the communication session.

17. The device of claim 14, wherein the user input comprises a user selection entered at a communication device indicating a particular communication feature is desired.

18. The device of claim 17, wherein the communication feature comprises a mute feature.

19. The device of claim 13, wherein the at least one parameter comprises one or more of the following:

(i) a behavior of a participant, (ii) voice activity of a participant, (iii) relative voice activity of a participant as compared to other participants, (iv) timing of participant voice activity, (v) frequency of participant voice activity, (vi) whether a participant is employing a display to stream text from the communication session, (vii) whether a participant is placing the communication session on hold periodically, and (viii) anticipated behaviors based on materials related to the communication session.

20. The device of claim 13, wherein the jitter buffer is initially set at a first capacity, and the latency and QoS optimization agent is further operable to determine that the communication session interactivity is increasing and, in response to determining that the communication session interactivity is increasing, adjust the capacity of the jitter buffer to a second capacity that is smaller than the first capacity.

21. The device of claim 13, wherein the jitter buffer is initially set at a first capacity and wherein the latency and QoS optimization agent is further operable to adjust the jitter buffer capacity to a second capacity during the communication session, wherein the second capacity is different from the first capacity.

22. The device of claim 21, wherein the latency and QoS optimization agent is further operable to adjust the jitter buffer capacity from the second capacity to a third capacity during the communication session, wherein the third capacity is different from the first and second capacities.

23. A communication system, comprising:

a communication device adapted to receive data packets in connection with a communication session, the communication device comprising a jitter buffer for managing and organizing the received data packets; and

a latency and QoS optimization agent operable to monitor at least one parameter indicative of conversational dynamics for the communication session and adjust a capacity of the jitter buffer based on the monitored at least one parameter.

24. A system of claim 23, wherein the latency and QoS optimization agent does not reside on the communication device.