MTS_2025_Satcom_5G.pdf

1、MediaTek Proprietary and Confidential.2024 MediaTek Inc.All rights reserved.5G-Adv.NTN Technology for Direct Satellite Access-from Smart Phone to AutomotiveDr.I-Kang FuSr.Director of TechnologyAdvanced Communication TechnologyMediaTek Inc.2025 R&S Mobile Test SummitSatcom 2.0:Navigating the NTN Land

2、scapeCopyright MediaTek Inc.All rights reserved.MediaTek Proprietary and Confidential.2024 MediaTek Inc.All rights reserved.Terrestrial network covers 60%population,but 40%landmass.Still lack of broadband coverage in remote area4G/5G network deployment mostly based on human distributionTerrestrial+S

3、atellite networks can offer truly ubiquitous coverage around the world Cellular:urban+indoor Satellite:rural+outdoorSmart phone as key to connect mobile and satellite ecosystemsBring satellite services into consumer marketEnable“smart phone direct access to satellite”as key challengeSatellite and Te

4、rrestrial Network Convergence2 of 16“Coverage”as Key KPI for 6G System Design2025 R&S Mobile Test SummitMediaTek Proprietary and Confidential.2024 MediaTek Inc.All rights reserved.Propagation LossExample link budget-3GPP TR38.821 Set-1 satellite parameters 1Technical Challenges from Satellite System

5、 Perspective3 of 16S-band(i.e.2GHz)LEOGEOAltitude 600 km35786 kmElevation Angle 30 degrees10 degreesd()1075 km40581Access Link DirectionDLULDLULDL EIRP Density dBW/Hz34-59-Satellite Tx/Rx max.Gain dBi51513030G/T dB/K-1.1-193GPP IoT NTNBandwidth MHz0.180.180.180.083CNR dB6.52.72.55.43GPP NR NTN Bandw

6、idth MHz100.36100.36CNR5.12.70.0-10.92025 R&S Mobile Test SummitMediaTek Proprietary and Confidential.2024 MediaTek Inc.All rights reserved.Doppler EffectExample LEO w 600km altitude and moving UE w 1,000km/hr 2Technical Challenges from Satellite System Perspective4 of 16Example pre-compensation for