TRAU Emulation and Analysis

GL's TRAU Analyzer is used to non-intrusively monitor TRAU frames at the Abis interface (BTS to BSC links), and A-ter interface (BSC to MSC links). Application can automatically detect and capture TRAU frames of half rate (HR-8 kbps) or full rate (FR-16 kbps). Various codecs such as FR, EFR, AMR, AMR-WB, HR and Data are used for compression/decompression of speech (both directions). TRAU frames are decoded as per the specifications GSM 08.60 V 8.2.0 Release and GSM 08.61 V 8.1.0 Release. A-bis Signaling can be monitored using GSM Analyzer (optional application).

GL Communications supports the following types of TRAU analyzers:

• Real-time TRAU Analyzer: (Pre-requisites: GL's field proven E1 or T1 internal cards or USB Laptop E1 or T1 external units, required licenses and Windows Operating System)
• Offline TRAU Analyzers: (Pre-requisites: Hardware dongle and Windows Operating System)

For more details, visit TRAU Analyzer webpage.

TRAU Packet Data Analysis (PDA) is a part of the TRAU Protocol Analyzer and when invoked it displays call information in tabular and graphical formats (PDA - Summary View) as well as detailed frame- by- frame information (PDA - Detail View). Analysis of TRAU calls, including detail statistics, wave graph, oscilloscope, spectral display for various codecs can be done using TRAU Packet Data Analysis (PDA) feature. It also allows users to play voice files to speaker, write speech data to a file, filter calls, detect digits and view graphs such as Active Calls, and Traffic Monitoring to identify the frames and classify traffic.

For more details, visit TRAU PDA webpage.

The TRAU Traffic Playback is an application used to generate TRAU traffic on T1 E1. The tool provides the ability to playback the recorded TRAU HDL file(s) using TRAU Analyzer on selected/all subchannels of T1 E1 lines. The application allows the user to transmit a single file or multiple files on the desired subchannels at any given time. TRAU frames are time-aligned as per the control information in the frame.

EFR, FR (GSM 6.10), HR, AMR, AMR-WB, O&M, Data, Data 14.5 and Idle Speech frame types, which are stored in the recorded TRAU files, can be used for transmission.

For more details, visit TRAU Traffic Playback webpage.

TRAU Toolbox™ is an ideal tool to test network elements at A-bis and A-ter interface. The tool can be used to create, monitor, and terminate multiple TRAU/GSM traffic (TRAU sessions). Once the TRAU session is created, different kinds of audio/voice/digits can be generated and analyzed on GSM call with various codecs. TRAU Toolbox™ can emulate TRAU node at BSC/MSC end or CCU node at BTS end including the compression/decompression of speech that takes place at TRAU side or Mobile side. TRAU frames are time-aligned according to control information. The traffic generated by a BTS is transported to the corresponding BSC across a network is referred to as the backhaul network. The TRAU Toolbox™ can be used to test this backhaul network.

For more details, visit TRAU Toolbox™ webpage.