Telelogic Enhances IEEE 802.11 Capabilities With New MAC Layer Module; Pre-Fabricated, Pre-Packaged Solution Speeds Time-To-Market for Wireless LAN Product Providers.

Business Editors & High-Tech Writers

IRVINE, Calif.--(BUSINESS WIRE)--Oct. 30, 2001

Telelogic, (Stockholm Exchange:TLOG), the leading global provider of advanced software and systems development, today announced that it has enhanced its support of the Institute of Electrical and Electronic Engineers (IEEE) 802.11 standard with the addition of a pre-fabricated, pre-packaged Media Access Control (MAC) layer module.

To help companies successfully integrate the module into their own products, Telelogic has developed an 802.11 consulting service offering.

The 802.11 standard provides a common set of operational rules to facilitate interoperability of wireless local area networking (LAN) products from different vendors. Today, the standard offers transmission rates of up to 54 Mbps.

The MAC layer, one of two sub-layers that make up the Data Link Layer, is responsible for moving data packets between network layer entities across a shared channel. In the case of wireless LAN, the shared channel is the air interface.

"Telelogic has been playing an integral role in IEEE 802.11 since 1998 when the IEEE study group chose to document much of the MAC protocol in SDL using tools provided by Telelogic," said Bill Philbin, senior vice president of Telelogic's global product organization.

"By leveraging the advanced capabilities of Telelogic Tau, our real-time software development suite, we have developed a pre-fabricated, pre-packaged MAC Layer module that wireless LAN product providers can use. By not having to develop this themselves, they will be able to bring value-added, end-user applications to market faster than ever before."

Telelogic's 802.11 MAC Layer Module

The Telelogic 802.11 MAC Layer module has been developed using the Telelogic Tau SDL Suite and is coded mainly in SDL with some lower level routines written directly in the C programming language. The model has been simulated and validated using the features of the SDL Suite to ensure its quality.

Telelogic Tau provides automatic code generation and the code produced can then be ported to any combination of target hardware and real-time operating system, since the SDL model is independent of the target platform.

In addition to a variety of consulting services, Telelogic also offers a set of test scripts to verify the implementation at the design stage as well as during on-target testing. The MAC Layer module supports both 802.11a and 802.11b.

"There is great value in deploying an SDL-based solution because changes to the specification can be easily affected and validated in the SDL model. Once the changes have been made it is then simply a matter of automatically regenerating the code," said Matt Graney, field product marketing manager for Tau in Telelogic Americas.

"The wireless LAN standard is continuing to evolve. By leveraging the power of automated tools such as Telelogic Tau, companies can not only be more responsive, but also develop and deliver higher quality applications, faster, more efficiently and at less cost than before."

About Tau SDL Suite

Telelogic Tau SDL (Specification and Description Language) Suite is the world's leading real-time software development tool, according to industry analyst group Venture Development Corp. in its January 2001 report entitled, "Embedded Software Development Tools." Tau SDL is based on the object-oriented design language, SDL and the trace language MSC, both of which are formal, visual and internationally standardized languages.

The suite consists of a graphical editor and syntax analyzer, a simulator and validator and several optimized code generators for compilation to code suitable for implementation in real-time and embedded systems. SDL is the only graphical modeling and design language that is both formal -- it has been standardized by the ITU-T (Z.100) -- and object-oriented.

About Telelogic

Founded in 1983, Telelogic (www.telelogic.com) is the leading global provider of solutions for advanced software and systems development. The company's integrated solution includes best-of-class software and professional services for requirements management, change and configuration management, analysis, design, implementation, testing and automated documentation.

Telelogic enables organizations to improve quality and predictability, while reducing time-to-market and overall costs in software and systems development. Built on an open architecture that ensures interoperability with other leading third-party solutions, Telelogic's products are based on international standardized languages and notations.

With headquarters in Malmo, Sweden the company has more than 1,000 employees worldwide. Customers include Airbus, Alcatel, BMW, Boeing, British Telecom, DaimlerChrysler, Deutsche Bank, Ericsson, Lockheed Martin, Lucent Technologies, Motorola, NEC, Nokia, Philips and Siemens.

Note to Editors: Telelogic, Telelogic DOORS, Telelogic Tau, and Tau Synergy are registered trademarks of Telelogic AB. All other names or product names are the trademarks, service marks or registered trademarks of their respective holders.