Research on Capacity Enhancement of IoT-NTN Communication for Satellite-terrestrial Integration
As a prospective exploration of future 6G satellite-terrestrial integration communications,5G-A has conducted systematic research on the application scenarios,spectrum,key communications technologies,and challenges of 5G-A NTN communications.In response to the large connection requirements of IoT-NTN,a code division scheme of different granularity is designed based on the NPUSCH channel transmission structure in existing specification,and performance evaluation is carried out based on typical assumptions in NTN scenarios.The simulation results show that the proposed scheme can effectively improve the uplink communication capacity of the IoT-NTN.
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