K1297-G20 Monitor • K1297-G20

CDMA2000 Protocol Testing and Analysis

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Features & Benefits

  • K1297-G20 Monitor
    • Easy to Use with Graphical User Interface
    • Field Monitoring
    • Portable and Rugged
    • 16+ Physical Links (E1/T1, etc.) and 64+ Time Slots
    • Ethernet board (4 x 10/100 Base-T)
    • Large Number of Supported Protocols
    • A1, A10/A11 Multi-Interface Calltrace up to IOS-4.2
    • Advanced Troubleshooting Applications
  • K1297-G20
    • Hardware, Software and User Interface Based on the K1297-G20 Monitor
    • Graphical User Interface is Compatible with K1297-G20 Monitor
    • Offers All Monitoring and Analysis Features of the K1297-G20 Monitor, Plus Simulation and Emulation

Applications

  • K1297-G20 Monitor
    • Creation of Network Statistics and Call Detail Records
    • Call Tracing and Troubleshooting
  • K1297-G20
    • Replacing Real Equipment in a Network for Testing Purposes
    • System Verification and End-to-end Testing
    • Voice Channel Verification

K1297-G20 Monitor

The K1297-G20 Monitor is specifically designed for field monitoring applications and provides users with many advanced monitoring features for analysis and troubleshooting.

For example, a click on the "Zoom" button, as shown in Figure 1, will extract all messages that belong to one particular call, even from a large recording. This saves time and is as easy as it could be.

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Figure 1. Click on the Zoom button to extract all messages.

A sophisticated filter configuration dialogue, as shown in Figure 2, enables the user to select messages according to a certain criteria (e.g. containing a certain IMSI, etc.).

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Figure 2. Filter dialogue allows user to select messages according to certain criteria.

Decoding down to bit-level for all parameters is essential for troubleshooting and problem analysis, as shown in Figure 3.

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Figure 3. All parameters can be decoded down to the bit-level.

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Figure 4. Convenient trouble shooting: cdma Multi-Interface Calltrace captures messages from different interfaces belonging to the same transaction

K1297-G20

The K1297-G20 features protocol monitoring, simulation, and emulation. The instrument's hardware, software, and user interface are based on the K1297-G20 Monitor, which makes it easy for previous K1205/K1297-G20 Monitor users to adapt to the G20.

Capabilities in the K1297-G20 allow applications that are particularly valuable for Network Installation and Commissioning in the field.

Network Element Emulations for Replacing of Real Equipment

Network Element Emulations on the K1297-G20 are designed to allow network elements (such as MSC, HL, etc.) to be replaced by the Emulation for testing purposes.

All parameters - for example, phone numbers, IMSIs, and more - are configured through menus. Once activated, the Network Element Emulation will automatically respond to incoming messages and/or initiate calls and procedures. Outgoing calls or procedures can be initiated interactively with a mouse click, or with the help of a simple script interface by defining specific call scenarios, as shown in Figure 5.

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Figure 5. Configuration dialog for a Network Element Emulation.

MBS/MSC Tools for Detail Level Testing and Troubleshooting

The MBS (Message Building System) and MSC (Message Sequence Chart Tool) allow users to graphically design and modify Test Cases.

Users have full control over message flow and message content. Virtually any equipment behavior (correct or faulty) can be simulated with the MBS/MSC tools, making it particularly useful for detail level testing or troubleshooting.

The MBS is used to create messages and edit their parameters. Variables can be used to handle parameters dynamically. Figure 6 illustrates how the MBS and MSC tools are used. Messages are built by selecting the Message Type and Parameters (IEs) from menus.

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Figure 6. Message Building System (MBS) and Message Sequence Chart Tool (MSC) displays.

As shown in Figure 7, the MSC is used to define the message flow of a test case. The messages (indicated by arrows in the chart) are defined within the MBS.

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Figure 7. Message Sequence Chart Tool displays.

CDMA2000 System Architecture

Figure 8 illustrates the CDMA2000 system architecture.

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Figure 8. CDMA2000 architecture diagram.

A1 Interface

The A1 interface is the Interface between the BSS (Base Station Subsystem) and MSC (Mobile Switching Center) for the circuit-switched side of the CDMA2000 network, as shown in Figure 9.

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Figure 9. A1 Interface testing diagram.

A1 Interface Test Capabilities
  • Monitoring with advanced Filtering and Analysis applications
  • Simulation with Message Building System (MBS) and Message Sequence Chart Tool - test case development and detail level testing
  • Voice Channel Verification feature
  • BSS and MSC Network Element Emulation for system level testing, supporting 240 subscribers

Features of K1297-G20 Network Element Emulation for A1 Interface

Network Element Emulation for A1 Interface

Emulated Equipment

BSS, MSC

Supported Procedures

Location Registration

Mobile Originated Call (MOC)

Mobile Terminated Call (MTC)

Call Clearing (MO and MT)

Number of Subscribers

240

Features of MBS/MSC Test Suite for A1 Interface

A suite of predefined Test Cases is based on the MBS/MSC tool. These Test Cases are particularly useful for troubleshooting or detail-level testing since any equipment behavior can be simulated.

A Voice Path Verification feature ensures that B-channels are switched correctly.

The user may modify or add Test Cases as needed (message content as well as message sequence), using the MBS and MSC tools. The time needed for recompiling and reloading a test case is very short (<1 min).

MBS/MSC Test Suite for A1 Interface

The following procedures are covered in the predefined test suite for testing the BSS and MSC side:

Location Registration

Mobile Originated Call (MOC)

Mobile Terminated Call (MTC)

Call Clearing (MO and MT)

Call Waiting

Message Waiting Indication (MS Idle and in Traffic)

SMS (MS Idle and in Traffic)

Voice Path Verification

A10/A11 and P-H Interface

See Figures 10, 11, and 12.

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Figure 10. A11 Interface testing diagram (Open R-P Control Plane).

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Figure 11. A10 Interface testing diagram (Open R-P Data Plane).

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Figure 12. P-H Interface testing diagram (Mobile IP).

A10/A11 and P-H (Mobile IP) Interface Test Tools
  • Monitoring with advanced Filtering and Analysis applications
  • Simulation with Message Building System (MBS) and Message Sequence Chart Tool - test case development and detail level testing
  • IP Gateway Emulation for feeding IP application data (web browsing) into the A10 protocol stack
  • IP Packet Generator/Comparator

IS-41 Interface

See Figure 13.

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Figure 13. IS-41 Interface testing diagram.

IS-41 Test Tools
  • Monitoring with advanced Filtering and Analysis applications
  • Simulation with Message Building System (MBS) and Message Sequence Chart Tool - test case development and detail level testing
  • Support of WIN and Prepaid Services Protocols (IS-771, IS-826)
  • HLR Network Element Emulation for system level testing
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