The present document is part of a TS-family covering the 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Telecommunication Management; as identified below: The present document is part of a set of specifications, which describe the requirements and information model necessary for the standardised Operation, Administration and Maintenance (OA&M) of a multi-vendor 3G-system GSM or UMTS PLMN. During the lifetime of a 3G network PLMN, its logical and physical configuration will undergo changes of varying degrees and frequencies in order to optimise the utilisation of the network resources. These changes will be executed through network configuration management activities and/or network engineering, see GSM TS 12.06 [10] and 3GPP TS 32.106 [3]. Many of the activities involved in the daily operation and future network planning of a 3G PLMN network require data on which to base decisions. This data refers to the load carried by the network and the grade of service offered. In order to produce this data performance measurements are executed in the NEs, which comprise the network. The data can then be transferred to an external system, e.g. an Operations System (OS) in TMN terminology, for further evaluation. The purpose of the present document and its companion parts 1 and 3 is to describe the mechanisms involved in the collection of the data and the definition of the data itself.

The present document describes the TMN model for the administration of measurements and the collection of measurement result data in a GSM system. It also includes the measurement definitions for GSM. The concept and functional requirements for performance management in wireless GSM and UMTS systems is set out in TS 32.401.