Towards an Austrian PRS Access Server (TAUPAS)
The goal of the TAUPAS project is to intensify the Austrian activities in the field of the Public Regulated Service
(PRS). Therefore approaches for server architectures will be investigated, workshops with the relevant stakeholders
will be held and a roadmap for the usage of PRS in Austria will be elaborated.
The European Global Satellite Navigation System, Galileo, has been designed using a service oriented approach.
Galileo will provide four main services. One of these services is the Public Regulated Service (PRS) which is
dedicated to specific users requiring a high continuity of service, with controlled access. Two PRS navigation
signals with encrypted ranging codes and data will be available. In the past, activities on PRS developments have
been limited to major European member states due to political reasons.
Austrian activities in the field of PRS are very limited. In order to achieve a leverage effect and to participate
and cooperate in the European field some actions are necessary for Austrian stakeholders. Within the work programme
of the European 2020 strategy a dedicated focus is put on the Galileo PRS activities. A first step regarding the
Austrian activities in the field of PRS was accomplished in the ASAP 8 “Galileo Public Regulated Service Signal
Simulation and Position, Velocity, and Time Calculation” (PURSIT) project, in which two of the three consortium
members have been participating.
The draft security work programme for Horizon 2020 states for the PRS Topic 2, Remote PRS processing server the
following: "This task is devoted to the setup of a server able to process PRS samples and to provide position
velocity and time (PVT) as an output to the users. The idea behind this project is the concept of a 'PRS Access
Server': a service provision based on a client-server architecture in which the client takes a snapshot of the Signal
in Space (SIS) and provides it to the server that computes the PVT solution before sending it back to the client."
Given the challenges associated with development of fully-fledged security modules, the PRS Access Server may be the
easiest way to deploy an early PRS service for some civilian users and thus represents an easy way for Austrian users.
The biggest advantage, namely the encryption, is therefore also the biggest challenge for the PRS.
In summer 2014 Austria has established a competent PRS authority (CPA). Thus, previous activities in the field of PRS
The main goal of the "Towards an Austrian PRS Access Server" (TAUPAS) project is to analyse the PRS access
server concept. In a first step, additional insight will be gained into the PRS topic by getting access to classified
documents regarding PRS. Then an exchange with PRS stakeholders on both the Austrian and European level will be conducted
to further improve the knowledge. The results of this exchange will be use cases and user requirements. In a second step,
these user requirements will be translated to system requirements and the different possible server architectures will be
analysed. Finally, a roadmap for PRS in Austria will be elaborated in the TAUPAS project. Since the PRS access server topic
does not only apply to Austria, but to Europe, it will be important to gather and present information about the Austrian
competence in the PRS topic. To end the project, the awareness regarding the PRS topic will be raised by another exchange
with the Austrian stakeholders.
TeleConsult Austria GmbH (Lead)
Berner & Mattner Systemtechnik GesmbH
Brimatech Services GmbH
Austrian Research Promotion Agency (FFG)
Successfully completed in 2015