Call Us: +91 76760 54321
5G/6G
NetSim is the industry's leading system level simulator for modeling and simulation of 5G/6G networks, and allows users to:
- Create network digital twins to optimize protocol and application performance
- Design new protocols and technologies, as well as evaluate changes to existing ones
- Plan mobile network deployments that accurately incorporate wireless propagation impairments.
Our customers include:
- Mobile network operators (MNOs) or Cellular service providers (CSPs)
- Leverage off-the-shelf models and analysis tools provided with NetSim to investigate Network Capacity, Peak throughputs, End-to-end latencies, etc.
- Equipment manufacturers
- Test and demonstrate designs in realistic scenarios before production
- Generate synthetic data to train AI/ML models
- Universities and Research institutions
- Accelerate R & D
- Write your own algorithms by modifying NetSim source codes
NetSim supports the latest advances in 5G/6G including AI/ML in the RAN, MIMO, Beamforming, Network Slicing, SA/NSA modes, BLER, HARQ, Link Adapatation, FR1 & FR2, DL and UL Interference, Load balancing, Traffic steering, Mobility, Handover and comes with a range of example scenarios.
Overview
- End-to-End, full stack, packet level simulation of 5G networks
- System level simulation with link level abstractions
- Devices: UE, gNB (Omni, sector), 5G Core devices (SMF, AMF, UPF), Router, Switch, Server
- Intuitive user interface with drag-and-drop functionality, results dashboard, and interactive plots window
- Traffic Simulation: FTP, HTTP, Voice, Video, Email, Gaming, and Custom traffic types with user configurable data rate, packet size, inter packet arrival times, etc.
- Telemetry: Radio measurements, Radio resource allocation, Packet Trace
- Protocol source C code included
- External interface to Python
Specifications
- 5G Core (Based on TS23.501, TS23.502) functions and interfaces:
- Interfaces: N1/N2, N3, N4, N6, N11, XN
- 5G NSA deployment architecture (in addition to existing SA mode) for LTE - 5G dual connectivity,
to leverage existing LTE RAN/EPC deployments.
- Support for options 3, 3a, 4, 4a, 7 and 7a
- RLC (Based on 38.322)
- TM (Transparent Mode), UM (UnAck mode), AM (Ack mode)
- Segmentation and reassembly of RLC SDUs
- t-reassembly and t-pollRetransmit
- PDCP (based on 38.323)
- Maintenance of PDCP sequence numbers
- Discard Timer, t-Reordering Timer
- Transmit buffer and receive buffer maintenance
- MAC Layer
- Handover:
- Inter frequency and intra frequency handovers
- A3 Event based
- Configurable parameters:
- Handover interruption time
- Handover margin
- Time to Trigger
- Multiplexing/De-multiplexing of MAC SDUs from one or different logical channels onto transport blocks (TB) to be delivered to the physical layer on transport channels
- MAC Scheduler featuring Round Robin, Proportional Fair, and Max C/I algorithms (Detailed explanation)
- Link Adaptation
- Inner loop link adaptation (ILLA): Sets MCS based on CQI
- Outer loop link adaptation (OLLA): Dynamically adjusts MCS based on HARQ ACK and NACK counts to meet the set t-BLER
- Network Slicing
- Slice Types: BE, eMBB, URLLC, MIoT, V2X
- Static resource sharing based on % of resources to be allocated
- Dynamic resource sharing based on an online machine learning algorithm
- Handover:
- PHY Layer
- Uplink and downlink physical channel
- Frame structure and physical resources
- Flexible sub-carrier spacing in the NR frame structure using multiple numerologies.
- FR1 numerology µ = 0, 1, 2
- FR2 numerology µ = 2, 3
- FR1 bands
- TDD: n34, n38, n39, n40, n41, n50, n51, n77, n78 and n79
- FDD: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n66, n70, n71 and n74
- FR2 bands
- TDD: n257, n258, n259, n260, n261, n262 and n263
- Carrier aggregation: Intra-band and Inter-band
- Radio measurements logged every TTI:
- SINR, SNR, Rx signal level, Pathloss, ShadowFading loss, Beamforming gain
- CQI, MCS
- MIMO
- gNB antenna count supported 1, 2, 4, 8, 16, 32, 64, 128
- UE antenna count supported 1, 2, 4, 8, 16
- MIMO Spatial channel model
- MIMO Spatial Channel Model (SCM), i.e., the channel is represented by a matrix H, whose entry (t, r) models the channel between the t-th and the r-th antenna elements at the transmitter and the receiver, respectively
- Gaussian channel with Rayleigh fast fading: i.i.d Complex Normal (0, 1) channel (H-matrix) that changes independently every coherence time.
- Digital Beamforming gain per the Eigen values of the Gram (Wishart) matrix
- Ability to input per gNB pathloss files from 3rd party software tools like MATLAB
- Downlink Interference: Exact geometric, Interference over Thermal
- Uplink Interference: Interference over Thermal
- HARQ with soft combining
- Block error (BLER)
- Users can set a target BLER
- BLER will be looked up from SINR-BLER data tables
- NetSim has exhaustive SINR-BLER data for various transport block sizes for all MCSs (1, 2, ..., 28) for Base graphs (1, 2) for all three tables (1, 2, 3).
- SINR-BLER data generated using an in-house proprietary link-level simulation program. The results have been carefully validated against published literature
- Code block segmentation: The transport block is split into code blocks (CBs). Then CBs are grouped into code block groups (CBGs) and transmitted over the air interface.
- PHY layer modulations supported
- BPSK
- QPSK
- 16QAM
- 64QAM
- 256QAM
- RF propagation
- Log distance mean pathloss
- Log normal shadowing
- Reyleigh fading
- 38.900 Propagation models
- Environment
- Rural Macrocell
- Urban Macrocell
- Urban Microcell
- Indoor Office – Mixed office, Open office
- UE Position
- Indoor
- Outdoor
- LOS State
- LOS (Line of Sight)
- NLOS (Non-Line of Sight)
- Outdoor to indoor model
- Highloss Model
- Low Loss model
- Environment
Featured Examples
- Effect of distance on pathloss for different channel models in Urban and Rural environments
- Effect of UE distance on throughput in FR1 and FR2
- Impact of MAC Scheduling algorithms on throughput, in a Multi UE scenario
- Round Robin
- Proportional Fair
- Max Throughput
- Max Throughput for various bandwidth and numerology configurations
- Max Throughput for different MCS and CQI
- Outdoor vs. Indoor Propagation
- 4G vs. 5G: Capacity analysis for video downloads
- 5G Peak Throughput Analysis
- 3.5 GHz n78 band
- 100-MHz with 4:1 DL-UL ratio
- 50-MHz with 4:1 DL-UL ratio
- 26 GHz n258 band
- 400-MHz with 4:1 DL-UL ratio
- 200-MHz with 4:1 DL-UL ratio
- 3.5 GHz n78 band
- gNB Cell Radius for Different Link Budgets
- 3.5 GHz n78 band (C band)
- 26 GHz n258 band (mmWave band)
- Impact of numerology on a RAN with DL/UL applications involving phones, sensors and cameras
- UE Movement vs Throughput
- 5G KPIs for single and multi-UE scenarios