CSN is up a level to meet assuring IPTV service quality. The newly implemented TR-126 technical report is now available in CSN.
TR-126 is a technical report presents the recommended end-to-end quality of experience (QoE) guidelines in terms of objective measures for triple play applications delivered through a broadband infrastructure. QoE requirements define the overall, performance at the services level from the perspective of the end user. The establishment of consistent, baseline subjective QoE for end users and corresponding objective engineering targets is critical to the market success of broadband service offerings. The QoE guidelines are end-to-end requirements and are agnostic to access technology (xDSL, xPON, etc.), services architecture, and implementation.
The QoE requirements are specified as end-to-end (not just access link) and can be translated into objective engineering measures at the network transport and application layers given various assumptions concerning the network and service architectures. This implementation helps service providers ensure the minimum objective engineering performance recommendations are met but may wish to set their own preferred and/or premium QoE driven targets to provide differentiated services in their markets.
 TR-126 defines channel zapping delay needs to be below 2 seconds
The standard well defines the channel switching time must be less than 2 seconds, and channel zapping delay is calculated from screen turns black to the next channel is displayed on the screen. (As the figure shown below.) It is important to have this measurement for the IPTV provider because the end-user experience may reflect subscriber numbers. They need to plan ahead for any possibility to enhance customer experience and satisfaction . Based on the measurement, the IPTV operator can expand and upgrade their current IPTV network where the new equipment should be placed and purchased. |
