94.8 Data Service Testing Information Elements
94.8.1 General
This section lists the information elements in the Data category, i.e. those obtained when performing data service testing. The Data category contains the following kinds of elements:
Application-level data service measurements: These reflect the performance experienced directly by the user of the service, as opposed to the performance at lower levels in the protocol hierarchy (RLC, LLC, RLP, etc.). The latter is indicated mostly by information elements in other categories such as GSM and WCDMA. Compare, however, the remaining bullets below.
Transport layer measurements: UDP elements.
Link layer measurements.
Throughput elements in the Data category are either instantaneous or averages taken over the entire duration of the network connection. These elements contrast with the throughputs reported in KPI events (see section "Data Service Testing Events"), which are measured over the period defined in each KPI, as described in the Technical Reference, chapter "KPI Definitions". All KPI data is furnished by these events; no KPIs are based on the information elements in the Data category.
The Data category information elements are independent of the bearer service used (packet-switched or circuit-switched).