HITACHI : 1xEV-DO Revision A System to Realize Wireless Broadband Communications

	December 2007
	Information Systems

AUTHORS

Yoshitaka Iida	Mobile System Department, Hitachi Communication Technologies, Ltd.
Kiyoshi Kawamoto	Mobile Development Department, Hitachi Communication Technologies, Ltd.
Yusuke Takemichi	Software Department, Hitachi Communication Technologies, Ltd.
Katsuhiko Tsunehara	Network Systems Research Department, Central Research Laboratory, Hitachi, Ltd.
Toshiyuki Saito	Network Systems Research Department, Central Research Laboratory, Hitachi, Ltd.

OVERVIEW

1xEV-DO Revision A is a cell phone system that achieves high-speed data transmission of up to 3.1 Mbit/s on the downlink, and up to 1.8 Mbit/s on the uplink using the same frequency band as existing 1xEV-DO (1.25 MHz). It is worthy of being called a pioneering wireless broadband technology. To realize advanced services such as the video telephony, the Hitachi Group has applied that technology to build a commercial system. To cope with diversification in wireless broadband services, standardization organizations have been studying various next-generation wireless access systems, and Hitachi, too, is harnessing the strength of the Group to aggressively take up the challenge of mobile communication development.

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CONTACT FOR INQUIRY

Mobile System Department,
Hitachi Communication Technologies, Ltd.

TEL: +81-45-865-7003
FAX: +81-45-865-7122

yoshitaka.iida.ax@hitachi.com

RELEVANT SITE

The Hitachi Hyoron (Japanese Only)

KEYWORDS

1xEV-DO, CDMA 1X WIN, AP, QoS, BCMCS

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