SOURCE: Anue Systems

June 21, 2006 15:49 ET

Anue Systems Launches CPRI Impairment Emulator

Latest Emulator Generates Delays and Impairments for Standardized Radio Base Station Interface

AUSTIN, TX -- (MARKET WIRE) -- June 21, 2006 -- Anue Systems, the performance leader in network delay and impairment emulation, today announced its CPRI Network Emulator. This newest Emulator is part of Anue's Signal Delay product family. Signal Delay Emulators inject delays, bit errors and loss of signal at full line rate into optical network traffic.

Testing requirements under the Common Public Radio Interface (CPRI™) Specification for BER and delay are very stringent, requiring the precision and resolution inherent in an Anue Network Emulator. Specifically, intentionally inserting delays and bit errors are two essential tests required by the CPRI Specification that Anue addresses with the new CPRI Delay and Impairment Generator.

Since CPRI is used within and between cell phone base stations, the range of transmission distance is from a few meters to 50km. Such a distance creates a signal delay that should be precisely emulated in a test environment before a CPRI solution is deployed. The Anue Emulator can insert delays from 400ns to 250ms with step sizes of 0.4ns.

The CPRI Initiative was formed in June of 2003 to define a publicly available specification for the key internal interface for radio base stations. CPRI represents a cooperative effort in direct response to the industry's call for standardization. The CPRI Specification was defined jointly by Ericsson, Huawei, NEC, Nortel Networks and Siemens.

The CPRI specification is a serial digital I/O standard that offers three different line bit rates: 614.4Mbps, 1228.8Mbps and 2457.6Mbps between the radio equipment (RE) and radio equipment controller (REC) of a radio base station. Anue has an Emulator solution for all three of these data rates. The specification covers Layers 1 and 2 of the Open System Interconnect (OSI) stack and supports two types of control and management channels, fast and slow. The fast channel is based on Ethernet, while the slow one is based on the High-Level Data Link Control (HDLC) protocol.

As a key enabler for Universal Mobile Telecommunications System (UMTS) and other third-generation (3G) mobile phone technologies, CPRI provides many benefits for network operators, base-station manufacturers and component suppliers, including lower infrastructure and operating costs, and faster time to market for new services.

About Anue Systems, Inc.

Anue is the recognized leader in high performance network emulators. Anue emulators are precise, versatile and feature rich, yet easy-to-use. Its line of network emulators cover multiple protocols and offer the unique combination of hardware-based architecture for true full-line-rate processing, support up to 11 Gbps, and dynamically changing impairment profiles. Anue emulators are used by quality-conscious organizations to preemptively and proactively verify network equipment, applications and performance. Anue customers include major network equipment manufacturers, telecom providers, government contractors, research institutions and Fortune 500 companies. Based in Austin, TX, Anue Systems has built a world-class team with expertise in network testing and performance. For more information, visit Anue's website at

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