DMTS™-8000

CDMA2000 Network Tester

The Dyaptive DMTS-8000 network test system is a unique load generation and performance test solution for CDMA2000 wireless networks.

• Generate real-world load profiles of mixed voice and data traffic in high-mobility environments
• Load networks with up to 2000 software-defined test terminals (STT), up to 16 sectors, or up to a total of 60 sector-carriers with support for 11 carriers per sector, to increase test coverage, test base stations and other network equipment to full capacity
• Locate and diagnose load-related problems with detailed logs, statistic and performance analysis tools
• Schedule and automate testing to increase test capacity
• Roll-out CDMA services faster

Key Features & Benefits

• Loads and tests all network elements, enabling accurate measurement and analysis of the high correlation between RF load and the combined signaling and user data load
• Highly scalable, configurable and upgradeable system ensures simple capacity expansion
• Powerful scripting language and automation features ensure an automatic test environment with reproducible tests that verify all aspects of a network, configuration and performance
• Based on Software-defined Radio Technology

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Integrated Test Functionality

The DMTS-8000 integrates functionality from multiple test devices to generate realistic, deterministic and repeatable load. It is comprised of a base system and applications that can be added:

Bulk Call Generator	Generate a traffic load using a variety of call models and traffic types, with up to 2000 STT's or the equivalent of 2 million calls per hour Define tests and load on either a group or individual STT basis Create repeatable and deterministic load
Enhanced Applications
Base System
Channel Emulator	Control radio channel impairment to simulate extended (rural) cell and other real-world propagation environments
Advanced Test Terminal Controller	Define behavior of one or more STTs that allows specific isolated testing that is fully controlled irrespective of what the network is telling the terminal to do Create specific brand or phone model configurations
Data Application Simulator	Data Application Simulator Generate data (FTP and HTTP) for mixed voice and data service performance measurement and integrated behavior analysis Correlate behavior across the different layers of all protocols
Performance Analyzer	Analyze performance with a powerful visual data mining tool Enable correlations between logs generated from various levels across all protocol stacks Predict mobile user experience
The DMTS also provides additional options for testing various functions like SMS, MEID, BAM, SDB, WPS, GEC, Access Handoff and many more.

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Software Defined Radio (SDR)

The DMTS system employs a unique application of SDR technology to effectively put a city in your lab.  Using SDR, the DMTS provides Software-defined Test Terminals (STT) for various voice and data services and user-defined RF conditions.  The DMTS-8000 system produces an equivalent load of up to 2,000 STTs that generates 2 million calls per hour (BHCA). It allows users to control and coordinate mobile behavior and RF conditions, as well as define and run tests that are completely repeatable.  Because the system is software based, it is easily upgradeable and reconfigurable, as well as scalable – protecting customers’ investment in their test system.

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Configurations

The DMTS-8000 can be deployed in multiple configurations. It can scale from a single blade processing element supporting 100 STTs and 1 sector (1 sector-carrier) up to 20 blade processing elements supporting 2000 STTs, 16 sectors with 11 carriers per sector and can process calls simultaneously for up to 60 carriers. It provides all capabilities in one 34U 19" cabinet.

System Management for Test System Automation

• Quick set up and installation
• Test definition language
• Test script creation
• Configure sectors and carriers
• Real time statistics
• Performance analysis
• Multiple user support

User Controls for Call Models and Simulation

 

Sectors	Multiple sectors Multiple sector-carriers
System Configuration
Test Case Configuration
Test Terminal Identities & Behavior	HLR parameters such as ESN and IMSI STD and NID Support Statistical behavior of STT population Coordinated or random behavior
Test Conditions & Triggers	Terminate tests based on time or statistics Configurable Pass/Fail criteria
Logging	OTA Signalling Repeated Messages Filters
Traffic Model
Test Terminal Mix	2G (Prev 3 to 5) 2.5G (Prev 6 and 7) 3G
Test Terminal Control	Registration rates Call rates up to 100,000 BHCA per test terminal Hold times Voice activity factors And many more
Traffic Mix	Voice FTP HTTP SMS
Traffic (data) Rates	9.6 kbps, 19.2 kbps, 38.4 kbps, 153.6 kbps
Radio Environment Control
	Pilot strength Path loss Coordinated Access Attempts Programmable Bit Error Rate Inter-cell interference Intra-cell interference Soft/Softer/Hard Handover Idle, Dormant and Access Handoff
Statistics Collection
	Statistics can be viewed and analyzed per test terminal, test terminal group, sector and Base Station Real time call and data transfer statistics Call orginations (attempts, success) Registrations (attempts, success) Network release Terminal release Hold times Blocked calls Dropped calls and many more
Air Interface Standards
	IS-95 A IS-95 B TSB-74 J-STD-008 1xRTT Release 0, Revision A 1xEV-DO Release 0, Revision A
RF
	RF Bandwidth 15 MHz Band Class Support
Uplink Downlink Band Class 0 824 - 849 MHz 869 - 894 MHz Band Class 1 1850 - 1910 MHz 1930 - 1990 MHz Band Class 3 832 - 870 MHz 887 - 925 MHz Band Class 6 1920 - 1980 MHz 2110 - 2170 MHz