scope:

The present document sets out device based features which pandemic contact tracing systems should meet to ensure their performance and compliance with the ETSI E4P system requirements and interoperability framework defined in ETSI GS E4P 003 [1] and ETSI GS E4P 007 [i.21]. Systems based on a smartphone with cellular and Bluetooth^® connectivity will be studied as the first priority and other solutions could be considered later.

In the context of tracing persons potentially infected with a transmittable virus such as SARS-CoV-2, the ISG E4P develops a framework and consistent set of specifications for proximity tracing systems, to enable the development of applications and platforms, and to facilitate international interoperability as defined in ISG E4P Terms of Reference [i.1]. The present document describes device based mechanisms for the Pandemic Tracing Systems.

In particular, the present document specifies various Proximity Detection Methods for Pandemic contact tracing systems, including:

• Proximity detection of contacts

• Anonymous identification of contacts

• Storage requirements for proximity data of contacts

• User experience and usability

Solutions are specified in technical detail so that means of interoperability between different systems and methods can also be readily defined in ETSI GS E4P 007 [i.21] "Pandemic proximity tracing systems: Interoperability framework". Each method is characterized (e.g. in a table) by its degree of compatibility with the ETSI GS E4P 003 [1].

The present document relates to ETSI GR E4P 002 [i.20] "Comparison of existing pandemic contact tracing systems" ETSI GS E4P 003 [1] "Requirements for Pandemic Contact Tracing Systems using mobile devices" and ETSI GS E4P 008 [2] "Back-End mechanisms for pandemic contact tracing systems". In addition, it will be used as an input to ETSI GS E4P 007 [i.21] "Pandemic proximity tracing systems: Interoperability framework".