Quality of experience determination for multi-party VoIP conference calls that account for focus degradation effects
First Claim
1. A method for determining the quality of experience for a multi-party conference call comprising:
- capturing values for a plurality of network characteristics for a conference call between at least three parties made using a multi-party conference call system in at least one of real-time and near real-time, wherein said plurality of network characteristics encompass at least parameters expressed in an E-Model R-Factor equation, wherein said multi-party conference call system utilizes a centralized focus component through which signals comprising the conference call are received from and sent to the at least three parties participating in the conference call, wherein the multi-party conference call system utilizes a Voice over Internet Protocol (VoIP);
determining a quality of experience (QoE) that accounts for degradation effects of the centralized focus component for each party of the at least three parties that is currently receiving a signal from the centralized focus component as part of the conference call, wherein the determined QoE is represented as a corrected mean opinion score (MOS) perceived by the receiving party; and
when the determined QoE of the conference call for the receiving party is below a predetermined threshold value, automatically and dynamically modifying a controllable parameter of the conference call to positively affect the determined QoE of the receiving party, wherein the controllable parameter of the conference call includes the codec being used for a receiving party, said modification of the controllable parameter further comprises;
performing the determination of the QoE for at least one other codec supported by the multi-party conference call system using the values of the plurality of network characteristics used in the determination of the QoE for the codec currently being used for the receiving party;
comparing the QoE of the codec currently being used to the QoE of the at least one other codec; and
when the QoE of one of the at least one other codec is deemed better than the QoE of the codec currently being used, proposing a switch from the codec currently being used for the receiving party to the at least one other codec having the better QoE as the modification to the controllable parameter.
1 Assignment
0 Petitions
Accused Products
Abstract
In one embodiment, the quality of experience for a multi-part conference call is determined. Values for network characteristics for a conference call between at least three parties is captured using a multi-party conference call system. The network characteristics encompasses at least parameters expressed in an E-Model R-Factor equation. A quality of experience (QoE) is determined that accounts for degradation effects. The determined QoE is represented as a corrected mean opinion score (MOS) perceived by the receiving party. A controllable parameter of the conference call is dynamically and automatically modified to positively affect the determined QoE of the receiving party when the QoS is below a designated minimal QoE threshold.
-
Citations
13 Claims
-
1. A method for determining the quality of experience for a multi-party conference call comprising:
-
capturing values for a plurality of network characteristics for a conference call between at least three parties made using a multi-party conference call system in at least one of real-time and near real-time, wherein said plurality of network characteristics encompass at least parameters expressed in an E-Model R-Factor equation, wherein said multi-party conference call system utilizes a centralized focus component through which signals comprising the conference call are received from and sent to the at least three parties participating in the conference call, wherein the multi-party conference call system utilizes a Voice over Internet Protocol (VoIP); determining a quality of experience (QoE) that accounts for degradation effects of the centralized focus component for each party of the at least three parties that is currently receiving a signal from the centralized focus component as part of the conference call, wherein the determined QoE is represented as a corrected mean opinion score (MOS) perceived by the receiving party; and when the determined QoE of the conference call for the receiving party is below a predetermined threshold value, automatically and dynamically modifying a controllable parameter of the conference call to positively affect the determined QoE of the receiving party, wherein the controllable parameter of the conference call includes the codec being used for a receiving party, said modification of the controllable parameter further comprises; performing the determination of the QoE for at least one other codec supported by the multi-party conference call system using the values of the plurality of network characteristics used in the determination of the QoE for the codec currently being used for the receiving party; comparing the QoE of the codec currently being used to the QoE of the at least one other codec; and when the QoE of one of the at least one other codec is deemed better than the QoE of the codec currently being used, proposing a switch from the codec currently being used for the receiving party to the at least one other codec having the better QoE as the modification to the controllable parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for determining the quality of experience for a multi-party conference call comprising:
-
capturing values for a plurality of network characteristics for a conference call between at least three parties made using a multi-party conference call system in at least one of real-time and near real-time, wherein said plurality of network characteristics encompass at least parameters expressed in an E-Model R-Factor equation, wherein said multi-party conference call system utilizes a centralized focus component through which signals comprising the conference call are received from and sent to the at least three parties participating in the conference call, wherein the multi-party conference call system utilizes a Voice over Internet Protocol (VoIP); determining a quality of experience (QoE) that accounts for degradation effects of the centralized focus component for each party of the at least three parties that is currently receiving a signal from the centralized focus component as part of the conference call, wherein the determined QoE is represented as a corrected mean opinion score (MOS) perceived by the receiving party, wherein determining the QoE further comprises; calculating a MOS for each receiving party using the captured network characteristics values using the R-Factor equation of the E-Model, wherein the degradation effects of the centralized focus component are unrepresented in said R-Factor equation; and calculating the corrected MOS for each receiving party using a correction function, wherein the correction function utilizes, as inputs, the MOS calculated using the R-Factor formula and a set of predetermined focus-effect coefficients for a codec being used for the receiving party, wherein the correction function is expressed as
MOSC=x1*MOS3+x2*MOS2+x3*MOS+x4,wherein MOSC is the corrected MOS, x1, x2, x3, and x4 correspond to the set of predetermined focus-effect coefficients for the codec used for each receiving party, and MOS corresponds to the MOS calculated using the R-Factor equation; and when the determined QoE of the conference call for the receiving party is below a predetermined threshold value, automatically and dynamically modifying a controllable parameter of the conference call to positively affect the determined QoE of the receiving party. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification