The EIRENE System Requirements and Functional Requirements Specifications allow for some flexibility in the allowed procurement approaches and implementation options for an EIRENE-compliant integrated radio communications system.
In order to ensure interoperability between national GSM-R GSM-R Global System for Mobile Communications-Railways networks, it is necessary to provide some guidance on the development of national specifications. This procurement and implementation guide is intended to provide help with the interpretation of the EIRENE Specifications in order to: - provide a framework for interoperability; - ensure common interpretation of requirements in the context of how EIRENE compliant systems may be implemented; - provide guidance in areas where there is flexibility in the implementation options.
The remainder of this section outlines the aspects that are covered by the Procurement and Implementation Guide in order to meet these requirements.
The realization of a GSM-R network is complex and requires much planning. It is not intended that every topic related to GSM-R implementation is covered here in this version of the document. Future versions of the document will build upon the information provided here by adding new sections, error corrections or more in depth explanations in order to form a more comprehensive handbook for GSM-R implementers.
In order to provide practical assistance to the implementation of an EIRENE-compliant radio network, this guide: - provides an overview of GSM-R and gives a single point of reference for all of the relevant documentation; - describes the various design options available and how these implementations can be made to result in an interoperable EIRENE-compliant system; - provides guidance on the use of the EIRENE System Requirements Specification and Functional Requirements Specification and explains how this information may be used to develop a national strategy; - provides guidance on issues, which have an effect on implementation and interoperability, but are not comprehensively covered in the EIRENE Specifications.