New Technology Delivers Increased Network Efficiency, Positions Wireless Carrier for Future Growth

ROCHELLE PARK, N.J.--(BUSINESS WIRE)--Nov. 12, 2001--Schema Inc., the leading global provider of advanced wireless network optimization and planning solutions, announced that it has signed a network services agreement with U.S. Cellular (AMEX: USM - news) to deploy Schema`s Telecom Resource Management(TM) (TRM) software - a technology platform that will enable U.S. Cellular to increase its network capacity and improve service quality.

Under the agreement, Schema will deploy its network optimization system throughout several U.S. Cellular operating markets. The TRM platform, which is supported by Schema`s Falcom(TM) Spectrum Optimizer, will enable U.S. Cellular to enhance its existing wireless spectrum, achieve greater capital efficiency and improve overall customer satisfaction, without incurring additional infrastructure costs.

``U.S. Cellular is proud to partner with Schema on this wireless technology solution,`` said Hichem Garnaoui, vice president of network engineering for U.S. Cellular. ``Our company is committed to providing unparalleled wireless service throughout its operating markets. This new software will not only provide our customers with the best service available, but also improve our company`s network efficiencies and position U.S. Cellular for future growth.``

``Prior to implementing this enhanced technology platform, we successfully tested its reliability and scalability in one of U.S. Cellular`s operating markets,`` said Andy Silberstein, president of Schema Inc. ``Based on the success of this trial, we will continue to help U.S. Cellular optimize and increase its spectrum capacity and improve service quality by maximizing the performance of its existing infrastructure.``

About U.S. Cellular

U.S. Cellular Corporation, the nation`s eighth largest wireless service carrier, provides wireless service to more than 3.3 million customers in 145 markets throughout 25 states. The Chicago-based company operates on a customer satisfaction strategy, meeting customers` needs by providing a comprehensive range of wireless products and services, superior customer support and a high quality network. U.S. Cellular is listed and traded as USM on the American Stock Exchange. For more information about U.S. Cellular, visit the company`s Web site at http://www.uscellular.com/.

About Schema

Schema is the leading global provider of advanced optimization and planning solutions that improve the way wireless carriers plan, implement and manage their networks. Schema`s unique, comprehensive approach to network optimization enables operators to increase capacity, enhance quality of service and improve capital efficiency by maximizing the value of existing systems. Schema`s Telecom Resource Management (TRM) platform delivers an integrated suite of software and services that combine highly intelligent, comprehensive and forward-thinking data usage techniques for rapidly responding to and capitalizing on market changes. The powerful combination of Schema`s total network optimization solutions and extensive expertise in the wireless field facilitates all stages of network optimization, planning and deployment.

By helping carriers achieve unparalleled system-wide performance through the automated fine-tuning of vital network parameters, Schema ensures its customers leveraging existing and future resources in the most advantageous manner throughout the migration to new standards. Schema`s TRM solutions are deployed and benchmarked by leading wireless operators worldwide, including Verizon Wireless, Cingular Wireless, U.S. Cellular, BellSouth International`s Cellcom Israel, Cellcom Greenbay and PCL (Pelephone Communications Ltd.). For more information about Schema, visit the company`s Web site at http://www.schema.com.

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