ETSI TS 128 402

The present document describes the measurements for EPC and non-3GPP access network interworking.

TS 32.401 [3] describes Performance Management concepts and requirements.

The present document is valid for all measurement types provided by an implementation of EPC and non-3GPP access Interworking System. Only measurement types that are specific to EPC and non-3GPP access interworking are defined within the present documents. Vendor specific measurement types used in EPC and non-3GPP access Interworking System are not covered. Instead, these could be applied according to manufacturer's documentation.

Measurements related to "external" technologies (such as ATM or IP) as described by "external" standards bodies (e.g. ITU-T or IETF) are only be referenced within this specification, wherever there is a need identified for the existence of such a reference.

The definition of the standard measurements is intended to result in comparability of measurement data produced in a multi-vendor network, for those measurement types that can be standardised across all vendors' implementations.

The structure of the present document is as follows:

• Header 1: Network Element (e.g. measurements related to ePDG);
• Header 2: Measurement function (e.g. Tunnel establishment);
• Header 3: Measurements.