Category: 5G NTN Technical
Yes, several procedures require synchronous connectivity between device and the network core. There is a study item on agenda for R19 on store and forward functionality. This is to mitigate the issue of discontinuous feeder links i.e. ground connectivity for delay tolerant applications.
Category: 5G NTN Technical
Yes, in Rel-17 the UE will handle the compensation. In the downlink the UE will synchronize to the Doppler shifted NPSS/NSSS signals as usual, it will then decode an ephemeris (a description of the serving satellite’s orbit accurate for a moment, say 1 sec) which will allow the UE to precompensate for the Doppler effect when it transmits in the uplink direction (RACH/PUSCH). This will be the way for NTN IoT (NB-IoT and eMTC) and also NTN NR.
Category: 5G NTN Technical
Yes as a future feature. The roadmap for our 5G NB-IoT waveform is prioritised according to our customer needs.
Category: 5G NTN Technical
Yes, ray tracing can be done for different terrain and geographic locations. We can also create specific scenarios or use 3GPP fading models.
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