Non-Terrestrial Network Validation

Satellite Simulation

Reproduce realistic satellite network conditions.

LEO, MEO and GEO scenarios
Propagation delay and Doppler
Satellite mobility and ephemeris

Network & Device Validation

Validate NTN networks and connected devices.

5G NR and NB-IoT NTN
UE Simulator for network validation
Network Emulator for device validation

Scale & Performance Testing

Test network behavior under realistic traffic and scale.

Scale to 10,000+ UE’s
Terrestrial + NTN traffic mixes
Throughput, latency and traffic behavior

NTN Protocol & Mobility Testing

Validate how networks respond to NTN-specific challenges.

Timing Advance pre-compensation
Dynamic HARQ and cDRX
Satellite mobility scenarios

Specifications
RAT Types	NR, NB-IoT
Satellite Types	GEO, MEO, LEO
Satellite Ephemeris	SIB19/SIB31 capability, TLE and StateVector file support
TA precompensation	Yes
Payload Type	Transparent and Regenerative
Number of UEs	Test 10,000+ UEs
Bands	NTN Bands n254/n255/n256 Custom Bands support
HARQ	Upto 32 HARQ Processes with dynamic RRC based HARQ Enable/Disable
Features	eDRX support, CMAS/ETWS, Multiple BWP, PTRS. SDT, Slot Aggregation
NTN + TN Call Mixes	Throughput, Latency, Voice calls
Mobility and Handover (NTN to NTN, NTN to TN, TN to NTN)	Cell reselection, Blind Retransmission, Conditional Handover, Handover procedures over Ax interface, D1 and T1 events
Integrated Satellite Link Emulator	Simulate delay, doppler for any satellite type (GEO, MEO or LEO), Define Beam width, Doppler effect and Atmospheric attenuation

Specifications

RAT Types

NR, NB-IoT

Satellite Types

GEO, MEO, LEO

Satellite Ephemeris

SIB19/SIB31 capability, TLE and StateVector file support

TA precompensation

Yes

Payload Type

Transparent and Regenerative

Number of UEs

Test 10,000+ UEs

Bands

NTN Bands n254/n255/n256 Custom Bands support

HARQ

Upto 32 HARQ Processes with dynamic RRC based HARQ Enable/Disable

Features

eDRX support, CMAS/ETWS, Multiple BWP, PTRS. SDT, Slot Aggregation

NTN + TN Call Mixes

Throughput, Latency, Voice calls

Mobility and Handover (NTN to NTN, NTN to TN, TN to NTN)

Cell reselection, Blind Retransmission, Conditional Handover, Handover procedures over Ax interface, D1 and T1 events

Integrated Satellite Link Emulator

Simulate delay, doppler for any satellite type (GEO, MEO or LEO), Define Beam width, Doppler effect and Atmospheric attenuation

Validate NTN Under Real-World Conditions

NTN introduces a new set of challenges for cellular network validation. Long propagation delays, Doppler shifts, satellite movement and NTN-specific protocol behavior can significantly impact network performance and device connectivity.

Simnovus provides software-based simulation and emulation solutions to validate both NTN networks and devices under realistic conditions.

UE Simulator enables scalable simulation of 5G NR and NB-IoT NTN UEs, allowing teams to validate network behavior, NTN-specific procedures and performance at scale.

Network Emulator enables NTN device validation by emulating the network and satellite conditions that devices encounter in real-world deployments, helping evaluate device connectivity and performance under realistic NTN scenarios.

Together, these capabilities provide a controlled and repeatable environment to accelerate NTN validation from network testing to device testing.

Accelerate NTN validation with realistic, scalable UE simulation

Everything you need to validate NTN networks

Satellite Simulation

Network & Device Validation

Scale & Performance Testing

NTN Protocol & Mobility Testing

Validate NTN Under Real-World Conditions

Ready to see software innovation at work?