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1、ETSI Conference onNon-Terrestrial Networks,A Native Component of 6GMarko Hyhty,Research Professor04/04/20245G RedCap connectivity over satellites:6G-SatMTC projectProject overview6G-enabled Satellite-based Machine Type Connectivity for Demanding Applications in Remote Regions(6G-SatMTC)Integrated sa

2、tellite-terrestrial systems and LEO satellite based MTC connectivity RedCap technologies over satellite linksBasic information 3.4.2023 31.10.2025 VTT is coordinator,University of Oulu research partner Budget:930 k,partly funded by Business Finland 6G Bridge program In-kind input from companies:Work

3、 for use cases and publication3GPP presentations/contributionsTestbed definitions and emulation/simulation work,SW and lab use Project overview The main use case:operation during large forest firesReliable situational awareness and connectivity for mobile unitsVarious sensors and devicesMission-crit

4、ical services for peopleLinks to other initiatives:ESA MLSS activity(collaboration with Inmarsat and Fraunhofer)ESA 4SSTB(simulation and emulation testbeds to support future constellations R&D incl.IRIS2)What is RedCap?Reduced Capability(RedCap)technology is the evolution of the 5G New Radio(NR)to s

5、upport lower cost,lower complexity,longer battery life and more energy-efficient operation,and enable a smaller form factor than regular NR devices,thus reducing performance to the levels optimal for MTC applications.Not yet tailored for satellite connectionsCompany roles and standardizationArchitec

6、tural aspects:Direct access to satelliteSame interface towards BS and satellitesDirect connections inside and outside terrestrial coverageTechnical scopeWe are studying suitability of RedCap technology over satellite links to support industrial use cases what are required adaptations to protocols fo

7、r direct satellite-to-device use?Both IPR and publications targetedAnother main theme is mobility management and seamless connectivity,including interoperability and coexistence between TN and NTN networksQuasi earth-fixed beams and handover proceduresWe design and implement emulation and simulation

8、 testbeds to support development work Measurements with OneWeb terminals to support the work and to analyze suitability for public safety useSystem simulator for mobility studiesMatlab simulator Models satellite trajectories,used devices and their antennas and the link models Handover module for dec

9、ision criterion and timing,enabling conditional HOs Evaluation module for coverage and link availability;handover frequencyQuasi-Earth fixed beams with parametrizable multibeam antennas and the 3GPP NTN fading channel Goal is to reduce HO complexity of handheld devices to support direct-to-satellite

10、 RedCap conceptPlanned standardization activitiesDuring the course of work the involved companies(such as Nokia,Airbus)keep 3GPP status presentation for the project group to keep up-to-date information available for researchersWe plan to create IPR and standardization inputs related to link level protocols(RedCap over satellite link)as well as mobility management procedures.The contributions to 3GPP via the involved companies,most probable WG is RANFirst Name Surnamefirstname.surnamevtt.fi+358 1234 5678VTTFinlandyour_accountwww.vtt.fiThank you!