EG 202 057-3 : 1.1.1

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 General considerations
  4.1 Services covered
  4.2 Use of the parameters
  4.3 Reporting for different classes of customers
  4.4 Differences in levels of QoS
  4.5 Reporting for directly and indirectly served customers
  4.6 Data processing issues
  4.7 Data collection period
  4.8 Sampling and test calls
  4.9 Comparability of measurements
  4.10 Publication of QoS parameters
5 The use of drive round tests versus measurements based on
  network element counters
6 QoS parameters specific to PLMNs
  6.1 General
  6.2 Considerations on drive-round tests
  6.3 Considerations on measurements based on network element
       counters
  6.4 QoS parameters
Annex A (informative): Design of drive round surveys
Annex B (informative): Measurements based on network element
        counters
      B.1 Service accessibility: Unsuccessful call ratio
      B.2 Service retainability: Dropped calls ratio
Annex C (informative): Bibliography
History

Presents definitions and measurement methods for a range of user perceivable Quality of Service (QoS) parameters. The purpose of these parameters is to define objective and comparable measures of the QoS delivered to users/customers for use by users/customers. The present document applies to any telecommunication service however some parameters may have a limited application.