"The present document describes the measurements for Home enhanced Node B Subsystem (HeNS). HeNS [3] is consists of a HeNB and optionally a HeNB GW. And@ it is connected by means of the standard S1 interface to the EPC (Evolved Packet Core)@ more specifically to the MME (Mobility Management Entity) by means of the S1- MME interface and to the Serving Gateway (S-GW) by means of the S1-U interface TS 32.401 [4] describes Performance Management concepts and requirements. The present document is valid for all measurement types provided by an implementation of HeNS. Only measurement types that are specific to HeNS are defined within the present documents. Vendor specific measurement types used in HeNS 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) shall 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 HeNB and HeNB GW); - Header 2: Measurement function (e.g. HeNB registration measurements); - Header 3: Measurements."