ETSI publishes report on ISAC system and RAN architectures for 6G
ETSI has released a new report outlining architectural foundations for integrating sensing capabilities into future 6G systems, addressing system design, radio access network functions and technical challenges.
The European Telecommunications Standards Institute (ETSI) has published ETSI GR ISC 003, a report from its Industry Specification Group on Integrated Sensing and Communications (ISG ISAC), setting out architectural considerations for incorporating sensing functions into future 6G networks.
The document examines 17 technical challenges related to overall system architecture, radio access network (RAN) architecture and lower-layer RAN components. It proposes possible approaches to support the integration of radio-frequency sensing into next-generation wireless systems.
The report introduces a reference model for 6G ISAC systems covering multiple sensing configurations, including monostatic, bistatic and multi-static modes, involving both network infrastructure and user equipment. It identifies core functions such as sensing service control, data collection and processing, mobility management of sensing entities, charging mechanisms and secure exposure of sensing results with privacy safeguards.
On the RAN side, the report outlines additional functionalities required for sensing operations, including task coordination, measurement configuration, data processing and optional storage of sensing data. It also highlights technical issues such as interference mitigation, power control, signal design and resource allocation.
ETSI notes that further work is needed on topics including multi-operator sensing, coordination between core network and RAN, and the integration of computing, security, privacy and sustainability considerations. The report is intended to inform ongoing discussions within 3GPP as work on 6G system and RAN architecture advances.
