2G Networks - Analysis & Simulation

Simulation

Signaling and Traffic Simulation over GSM GPRS

GL offers an end-to-end 2G GSM GPRS Communications Network Lab (CNL) with all components within the wireless infrastructure to simulate both GERAN, and GSM Core, allowing complete testing of the GSM network. With these, one can simulate Voice, SMS calls in a lab environment, and study the network behaviour.

GL’s MAPS™ HD is a High Density 1U network appliance that is capable of high call intensity and high volume of sustained calls for a vast array of communication protocols covering IP and Wireless networks.

Signaling and Traffic Simulation over 2G Network

Mobile Traffic Simulation -GPRS Gb:

• Generate and verify user mobile data (Email, Web-HTTP, and FTP), gateway traffic, and packet traffic over (GTPv1 and GTPv2) GPRS Gb network interface

Location Services:

• Location services simulation over BSC <-> SMLC Lb interface
• BSSAP LCS Extension (BSSAP-LE) message exchange over M3UA/SCTP and SCCP
• Ready scripts for BSSAP-LE procedures – Location Service Request, Location Information Transfer, TA (Timing Advance) Positioning

RTP Traffic Simulation:

• Create, manage RTP sessions and generate and receive RTP traffic over the sessions with complete automation capability
• Simulation of RTP Traffic such as Voice, Digits, Tones, IVR and Impairments
• Automate the IVR testing process (call establishment and traffic generation / detection) process through scripts
• Supports all standard Voice Codecs.

SMS Traffic Simulation

• Ability to push / pull Short Messages over the network as if sent by thousands of mobile phones (Short Message Mobile Originated (SMS-MO)). MAPS™ can also transmit a Short Message to a mobile phone (Short Message Mobile Terminated (SMS-MT)).

TDM Traffic Simulation

• Simulation of TDM Traffic such as digits, voice file, single tone, dual tones, Dynamic VF
• Simulation of TDM Fax Traffic
• TRAU GSM traffic over GSM Abis interface
• Create, monitor, and terminate TRAU GSM traffic sessions

Standards

Use Cases

Wraparound BSC Testing

MSC Testing

Wrap around MSC Testing

Multi Interface MSC Simulation

Wrap around SMSC Testing

SGSN Testing

Monitoring GSM GPRS Networks

PacketScan™ GSM an All-IP Network Monitoring software and Hardware based T1 E1 GSM Protocol Analyzer offers powerful features to capture and monitor live signaling and traffic over IP and TDM networks respectively.

PacketScan™ HD is a high density multi-protocol VoIP monitoring, reporting and diagnostic network monitoring appliance. It can capture and process high volumes of communication protocols over IP and Wireless at 1GigE (PKV120) and 10GigE (PKV122) data rates.

• GSM-R (GSM Railway) Protocol Analyzer
• TRAU Packet Analyzer (over TDM)
• GSM over TDM Protocol Analyzer, GSM over IP Protocol Analyzer
• SIGTRAN Analyzer for MAP analysis over IP

GL’s IP/TDM Protocol Analyzer probes can be deployed along with a centralized monitoring system NetSurveyorWeb™ (PKV170). Protocol Analyzers can send Summary Fields, Frame Octets, and Call Detail Records to database along with Traffic Summary for the captured calls. The NetSurveyorWeb™ Lite (PKV169) is an integrated and a cost-effective web-based monitoring system that works with IP/TDM Protocol Analyzer probes as an addon tool.

KPI and Reports

GSM	Mapped Vs UnMapped SMS Top 5 SMS Total CDRs on different links Total SMS on different links	GSM KPIs
GSM A	Call Type (Location Update, Speech Call, SMS, IMSI Detach etc.) Failed call types Call Duration Successful vs Failure Calls Most Common Failures Billing Duration Total Billing Duration Average Billing Duration in Sec	GSMA KPIs
TRAU	Call Duration	TRAU KPIs

Visit PacketScan™ for Wireless Networks or GSM Analyzer webpage for more details. For centralized web-based monitoring GSM Network, visit NetSurveyorWeb™ page.

End-to-End Voice QoS

Measure Voice Quality on GSM, GPRS Networks

Using GL’s VQuad™ with the Dual UTA HD, or all-in-one VQuad™ Probe, along with centralized analytical tools, voice, data, as well as video quality can be tested simultaneously on a wireless or wired network.

Since the GL’s VQuad™ solution is network independent, all Voice and Data networks are supported including 2G, 3G, WiMax, 4G LTE, Advanced LTE and the 5G.

GL’s VQuad™ NetTestsolution provides automated data testing on Mobile Devices (Android and Apple) as well as PC based internet connections. The Data Testing includes TCP, UDP, HTTP, FTP, DNS, VoIP, SMS, and Email tests. GL’s Voice Quality Testing (VQT) supports automated voice quality between any two nodes within the network using latest ITU based algorithms including Perceptual Objective Listening Quality - POLQA (ITU-P.863) and PESQ (ITU-P.862).

• Complete end to end voice, data, video quality testing of GSM network-visit Automated Network Wide Testing
• Automated test statistics and results across next generation GSM network can be accessed via web interface
• Connect to Mobile Phones, Smart Phones, and Broadband Devices using GL’s portable VQuad™ - Dual UTA HD system
• Use GL’s VQuad™ - Dual UTA HD to confirm quality of service during the network upgrade process
• VQuad™ can remotely perform Automated Data Testing on any Android or iOS mobile devices (running the GL NetTest app), irrespective of where the phone is located, and whether the phone is on a voice call or not.
• Perform automated data testing on PC-based Broadband Internet (Broadband 3G/4G/LTE/5G, WiFi, Wired) and on Apple/Android Mobile Devices – tests include TCP, UDP, HTTP, VoIP, FTP, DNS, SMS, UEInfo, SimInfo, and PhoneInfo
• Supported devices - Mobile Radio (PTT) & Mobile Phones (5G, 4G, 3G, Wi-Fi, WiMax)
• Supports both Narrowband (8k sampling rate) as well as Wideband (16k sampling rate) connections for use in VoLTE networks utilizing the AMR-WB codec

Visit Complete Voice and Data Quality webpage for more details.

Resources