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:

• TS 32.411: "Performance Management (PM) Integration Reference Point (IRP): Requirements".
• TS 32.412: "Performance Management (PM) Integration Reference Point (IRP): Information Service (IS)".
• TS 32.416: "Performance Management (PM) Integration Reference Point (IRP); Solution Set (SS) definitions".

The present document is part of a set of TSs which describes the requirements and information model necessary for the Telecommunication Management (TM) of 3G systems. The TM principles and TM architecture are specified in TS 32.101 and TS 32.102. A 3G system is composed of a multitude of Network Elements (NE) of various types and, typically, different vendors, which inter-operate in a co-ordinated manner in order to satisfy the network users' communication requirements. Any evaluation of PLMN-system behaviour will require performance data collected and recorded by its NEs according to a schedule established by the EM. This aspect of the management environment is termed Performance Management. The purpose of any Performance Management activity is to collect performance related data, which can be used to locate potential problems in the network.

The present document specifies the Information Service for the Performance Management Integration Reference Point (PM IRP) as it applies to the Itf-N. This IRP IS defines the semantics of operations (and their parameters) visible across the Itf-N in a protocol and technology neutral way. It does not define the syntax or encoding of the operations and their parameters. This IRP IS is aligned with ITU-T M.3704 [16] in terms of the definitions of operations for Performance management.