scope:

The present document describes the CN CS measurements for UMTS and combined UMTS/GSM.

3GPP TS 32.401 [2] describes Performance Management concepts and requirements.

The present document is valid for all measurement types provided by an implementation of a UMTS network and combined UMTS/GSM network. These may be measurement types defined within the present document, measurements defined within other standards bodies, or vendor specific measurement types.

Only measurement types that are specific to CN CS UMTS or combined UMTS/GSM networks are defined within the present documents. I.e. vendor specific measurement types used in UMTS and combined UMTS/GSM networks. Some ATM or IP measurements defined here are only used for load carrying. 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. MSCServer related measurements);

- Header 2: Measurement function (e.g. handover measurements);

- Header 3: Measurements.