Communications Network Lab

5G, 4G, 3G, 2G, IP, TDM

4G LTE & IMS Wireless Network Simulation

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4G Simulation Lab with Simulated and Real eNodeB

GL offers an End-to-End 4G LTE and IMS Network Simulation Test Suite  with all components such as eNodeB, MME, Serving Gateway, PDN Gateway, HSS, SGSN, PCRF, PCEF, AF and others to simulate both E-UTRAN and EPC (Evolved Packet Core), allowing complete testing of the LTE network.

The test suite also allows LTE to interwork with 2G/3G networks simulating various circuit switched and packet switched traffic via IMS core. The test suite is capable of simulating multiple UEs and IMS core elements such as P-CSCF, I-CSCF, S-CSCF, PCRF, MGCF which provides the IMS core network. With the help of mobile phones, and other simulated wireless networks, the VoLTE Lab setup can be operated in real-time for making VoLTE calls and also for interworking with PSTN and VoIP networks.

One can setup a complete virtual real-time network simulating all the network elements, or any of the network elements in the above architecture replaced with user's DUT to perform single interface, multi-interface, or wrap-around testing. Complex scenarios such as inter-network, user roaming, handovers and location services can be achieved easily.

The lab system can operate with real mobiles, or simulator user profiles and can include multiple eNodeBs configurations to handle multi-UEs. Simulate multiple instances of nodes (MME, SGW, and PGW) in LTE network and nodes (P-CSCF, I-CSCF, S-CSCF) in IMS network to perform functional and load/stress testing.

Verify your latest mobile features over the network with various types of traffic generators and receivers. MAPS™ GTP mobile traffic (ETH101, ETH102) simulation support allows generation and verification of data traffic such as Email, FTP, Web (HTTP), Video, and transparent access to the IP network. In addition, with MAPS™ PacketLoad Server appliance massive simulation of UEs (up to 500000) with high density (up to 4 Gbps or 40 Gbps) mobile traffic (stateful HTTP/PCAP) is easily achievable.

CSV database system is used for massive UE simulation. The CSV file is divided into three sections: GSM, UMTS, and LTE identified by Subscriber Type variable. And “n” number of UE configurations can be saved within a single file which can be shared across 4G/3G/2G networks simulating inter-networking calls, roaming calls, VoLTE, data sessions, and bulk GTP traffic generation.

Wireless Networks (4G Lab Simulation)

4G VoLTE Call Simualtion and Monitoring System
4G VoLTE Call Simualtion and Monitoring System 00:06:15
4G LTE Lab Simulation & Analysis
4G LTE Lab Simulation & Analysis
Wireless Networks - 4G Lab Simulation
Wireless Networks - 4G Lab Simulation


Call Scenarios Nodes Interfaces
  • Mobile to mobile voice call
  • Simulated UE to mobile voice call
  • Mobile to Simulated UE voice call
  • Simulated UE to simulated UE voice call
  • Inter and Intra Handovers
  • Mobile web browsing

Simulated UE web browsing

    • Attach procedure
    • UE context setup procedures
    • Web browsing sessions
    • Detach procedures
    • Authentication information procedures

SGsAP procedures

    • Paging for non-EPS Services
    • Location Update for Non-EPS Services
    • Non-EPS Alert
    • Explicit IMSI Detach from EPS Services
    • Explicit IMSI Detach from Non-EPS Services
    • Implicit IMSI Detach from Non-EPS services
    • Tunneling of NAS Messages

Traffic Generation
High Density packet (data sessions) traffic simulation using MAPS™ PacketLoad Server

    • Voice, Fax, Video
    • SMS, MMS, Email, FTP
    • Supplementary IN Services
    • Internet connectivity
    • Multiple PDP contexts



LTE Interfaces - S1, X2, eGTP, S3, S4, S5/S8, S10, S11, S16, SGs
User-plane traffic (GTPv2-U)
User-plane Gateway traffic
Diameter Interfaces - Cx/Dx, Gx, Rx, Gy/Ro, Gm, Sh, SGi, S6a, S6d, S13 and S13'

Location Services - SLs, SLg, SLh

IMS Interfaces - Mw, Mi, Mj, Mg, ISC



What you need for setting up 4G LTE + IMS Lab?

4G lab system requires the following equipment, and emulation tools:

Complete 4G LTE + IMS Network Simulation Test Suite
with Real eNodeB

Complete 4G LTE + IMS Network Simulation Test Suite
with Real eNodeB

Complete 4G LTE + IMS Network Simulation Test Suite with Simulated eNodeB

Complete 4G LTE + IMS Network Simulation Test Suite with Simulated eNodeB


  • Mobile to mobile voice call
  • VoLTE Calls using IMS
  • 4G user calling 3G/2G user via CSFB
  • Mobile Web Browsing and Simulated UE Web Browsing


Portable 4G LTE and IMS Lab with Real eNB

Portable System

Portable 4G Lab System

Real eNodeB  Test Equipment

Real eNodeB Test Equipment


Item No. Item Description
  Mobile Web Browsing Simulation
BTS001 Real eNodeB (IP Access) + Mobile Phones + SIMs (Optional)
PKS142 MAPS™ LTE S1-MME interface
PKS139 MAPS™ Diameter Emulator
PKS140 MAPS™ LTE eGTP (S3, S4, S5, S8, S10, S11 & S16) interface
ETH102 ETH101 Mobile Traffic Core-Gateway

Additional - if Simulated BTS is chosen
Mobile Traffic Core-GTP
  Related Software
PKV100 PacketScan™ (Online and Offline)
  RTP Traffic Options
PKS102 RTP Soft Core for RTP Traffic Generation
PKS200 RTP Pass Through Fax Emulation

Optional Codec – AMR – Narrowband (requires additional license)


Optional Codec - EVRC (requires additional license)


Optional Codec – EVRC-B (requires additional license)


Optional Codec – EVRC-C (requires additional license)


Optional Codec – AMR - Wideband (requires additional license)


Optional Codec  - EVS (requires additional license)

PCD109 Optional Codec  - Opus (requires additional license)
  Mobile Traffic Options
ETH100 PacketCheck™ - Packet GTP Traffic Simulation
ETH101 Mobile Traffic Core-GTP
ETH102 Mobile Traffic Core-Gateway
ETH103 Mobile Traffic Core - GPRS Gb