ArrayComm Technology Enables Japan-based Carrier to Deliver 3G Data Speeds on 2G Network

date: March 28, 2002

ArrayComm, Inc.'s IntelliCell(R) technology plays a critical role in the new 128 kbps data service that DDI-Pocket, Inc. of Japan launched yesterday on its Personal Handyphone System (PHS) network. By leveraging IntelliCell technology, currently deployed in Kyocera Corp.'s base stations, DDI-Pocket's three million subscribers can access the Internet from handheld cellular phones or PCMCIA cards at data speeds up to 128 kbps. DDI-Pocket can now offer data rates close to the 144-kbps and up, data speeds promised for 3G mobile networks, yet the new service is being deployed on a proven 2G network at far lower cost.

IntelliCell "smart antenna" technology is a key enabler for DDI-Pocket to double its current network speeds, while maintaining the system's subscriber capacity and network coverage. Since IntelliCell technology delivers up to eight-times higher capacity to each base station, DDI-Pocket can offer subscribers the new, faster mobile data service at a price-point on par with current rates. The 128 kbps service, among the highest data speeds of any commercial service worldwide, will be available in areas where DDI-Pocket's PHS data service is currently offered for approximately $70 per month with unlimited usage.

"We are proud to be the first company in Japan -- and one of the few companies in the world -- to offer 128 kbps mobile data services to our customers," said Yoshiki Chika, general manager of the engineering planning department at DDI-Pocket. "ArrayComm's IntelliCell technology, and the dramatic gains in system capacity it delivers, is one of the critical components to our success. We expect established and new subscribers to embrace this faster access to their data, and we also expect to grow our revenues through the strategic technology investments we've made."

"DDI-Pocket understands its customers and their need to get their data from anywhere, yet it doesn't want to compromise its voice services," said Sam Endy, executive vice president and general manager of operations at ArrayComm. "ArrayComm helps network operators deliver better voice and data quality while increasing network capacity. Not only does that help the bottom line for traditional voice services, it opens up new areas of revenue growth on existing networks. DDI-Pocket's 128 kbps service is a terrific example of a mobile data solution that is unheard of in many regions, notably the United States, becoming affordable and widespread with the help of smart antenna technology."

Network operators throughout the Pacific Rim, including Japan, China and Taiwan, have proven that base stations incorporating IntelliCell technology are both cost-effective and spectrum-efficient for network operators and subscribers. DDI-Pocket is the largest customer of Kyocera-manufactured base stations incorporating IntelliCell technology in Japan.

Traditional cellular systems broadcast to many users. With IntelliCell technology, a "personal cell" is created for one user, follows that user while he or she communicates, and is dismantled when the user is finished. These personal cells reduce interference, allow for wider coverage, improve capacity, reduce costs and create clearer signals.

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