A webinar will offer insight into ITU standards to measure the performance of Internet Protocol (IP) services and assess 4G voice quality.
The webinar will share the results of the 7-16 May meeting of the ITU standardization expert group for ‘performance, QoS and QoE’, ITU-T Study Group 12.
A revision of the ITU standard on IP service performance (ITU Y.1540) introduces a new Annex defining IP capacity parameters in ways that cater to performance assessment. The new Annex is the result of years of study, based on the evaluation of performance parameters and methods of measurement against a ‘ground truth’ reference in laboratory and field measurements.
Also on the webinar’s agenda are revisions to the ITU standard detailing the factors influencing end-to-end QoS for 4G voice (ITU G.1028), as well as two new ITU standards addressing the relationship between voice QoS and 4G circuit-switched fallback, and best practices for the measurement of QoS in mobile networks.
The E-Model – a computational model to support transmission planners in ensuring high-quality voice services – now addresses both wideband (50-7000 Hz; revised ITU G.107.1) and fullband (20-20000 Hz; new ITU G.107.2). The webinar will discuss revisions and new additions to the E-Model, a model which assesses the combined effects of variations in several transmission parameters on conversational quality.
The webinar will be moderated by the Chairman of ITU-T Study Group 12, Kwame Baah-Acheamfuor of Ghana’s National Communications Authority. The meeting’s results will be presented by the Chairmen of the group’s three Working Parties:
Lars Birger Nielsen, Brüel & Kjaer, Denmark: “Terminals and multimedia subjective assessment”
Vincent Barriac, Orange, France: “Objective models and tools for multimedia quality”
Al Morton (Acting Chairman), AT&T, United States: “Multimedia QoS and QoE”
ITU-T Study Group 12 develops international standards on performance, quality of service (QoS) and quality of experience (QoE). This work spans the full spectrum of terminals, networks and services, ranging from speech over fixed circuit-switched networks to multimedia applications over mobile and packet-based networks. The standards developed by the group are highly relevant to operators in providing the level of service necessary to attract and retain customers.