NTN LEO 1200 template is sub-set of TR 38.821 Calibration template. It provides satellite constellation scenario in which satellites are orbiting at 1200 km altitude i.e. limiting selection of predefined calibration scenarios to scenarios where LEO 1200 satellite used. Some other configuration are also limited compared to TR 38.821 Calibration template. Template is implemented by the NTN simulator.
Essential pre-conditions
Constellation TLE file: oneweb.txt
Constellation Satellite: ONEWEB-0028
Simulation time is calculated relative to TLE epoch
Satellite orbit: LEO 1200
Predefined scenarios having the following properties
(set per scenario by selected Calibration Case):
Parameter set
Central beam elevation angle
UE antenna type
Band type
Frequency reuse factor
Priority
Propagation delay
Numerology
Configurable options
Warm Up Time for statistics collection
Calibration Case selection: 11-15, 26-30
The number of the UEs per gNb
The number of the beams in scenario
Bandwidth [Hz]
Enabling wrap around interference
Wrap-around tiers count: 1-4
UEs per wrap-around beam
Channel condition: DYNAMIC, LOS or NLOS
NTN scenario: DenseUrban, Urban, Suburban or Rural
Enabling uplink
Traffic type for DL And UL: FULL_BUFFER or UDP
UDP traffic packet size and interval
Satellite mobility types: STATIONARY, DOPPLER or TLE
UE mobility types: STATIONARY or DOPPLER
Satellite position Latitude: -90 <= x <=90
Satellite position Longitude: -180 <= x <=180Â
Channel update interval
UE Doppler mobility speed [km/h]
Stationary UE placement radius [km]
HARQ:
Enabling/disabling
Max retransmission count: <=8
Process count: <=32
Enabling blind and dynamic blind HARQ
Blind retransmission count:Â <=8
Enabling PF scheduler instead of RR
Enabling FD scheduler instead of TDMA
Maximum UEs scheduled per slots
CQI CBS symbols count
Target BLER: 0-1
Enabling UL power control
Power control Alpha: 0-1
Power control P0 [dBm]