In November 2006 Fujitsu was selected by DoCoMo to develop and manufacture prototypes and commercial equipment for DoCoMo's "Super 3G" wireless base stations. Since then, DoCoMo and Fujitsu Laboratories have made progress in jointly developing prototype wireless base station equipment, and maximum downlink transmission speeds of approximately 900Mbps have now been achieved through the application of MIMO technology, a core technology for high-speed, high-volume wireless communications.
DoCoMo's "Super 3G" is an advanced version of High-Speed Downlink Packet Access (HSDPA) and High-Speed Uplink Packet Access (HSUPA), which have been evolved from W-CDMA packet transmission technologies standardized by the 3rd Generation Partnership Project (3GPP). The 3GPP, a telecommunications standards organization, is currently discussing standardization of Super 3G under the name Long Term Evolution (LTE).
Since being selected to develop and manufacture DoCoMo's Super 3G wireless base station equipment, Fujitsu and Fujitsu Laboratories have worked with DoCoMo in developing the required technologies, and the companies have succeeded in developing a prototype wireless base station that achieves maximum downlink transmission speeds of approximately 900Mbps when using four antennas each (4x4 MIMO) for Super 3G base station transmission and mobile station reception as well as employing Fujitsu Laboratories' short-delay, high-speed error correction decoding technology.
Going forward, along with applying the results of development and evaluation work on MIMO and other Super 3G prototype technologies, Fujitsu will work to further refine the high-efficiency amplifiers and high-performance baseband processing technology it has developed for 3G wireless base station equipment in order to develop optimized commercial Super 3G wireless base station equipment that is compact, energy-efficient, economical, and highly scalable.
Fujitsu's prototype equipment will be exhibited at CEATEC Japan 2007.
Posted to the site on 28th September 2007
Posted to: www.cellular-news.com/story/26333.php