NTT DOCOMO has selected Fujitsu to provide Nokia Siemens Networks' core technology for its Super 3G / Long Term Evolution core network. Fujitsu and Nokia Siemens Networks have agreed to cooperate on jointly developing the Service Architecture Evolution (SAE) Gateway, including the Serving Gateway and the PDN Gateway, for the Super 3G project's Long Term Evolution (LTE) core. Financial terms were not disclosed.
The selection of SAE Gateway vendors means NTT DOCOMO is on track to be among the world's first operators to introduce LTE into its network.
Nokia Siemens Networks noted that it has supplied core network solutions worldwide that support over 1 billion subscribers and that it was the first to introduce "flat architecture" through Internet HSPA and Direct Tunnel, key evolutionary steps towards LTE.
"We are very pleased to be working with Fujitsu and NTT DoCoMo to advance the progress of LTE," said Juergen Walter, Head of Converged Core, Nokia Siemens Networks. "It is a testament to the quality of our LTE solution and our commitment to the Japanese market."http://www.nsn.comhttp://www.fujitsu.com
- In March 2008, NTT DoCoMo demonstrated a downlink transmission rate of 250 Mbps
over a high-speed wireless network in an outdoor test of an experimental Super 3G system for mobile communications. The "Super 3G" system trial has been underway using an actual wireless environment near its R&D labs in Yokosuka, just south of Tokyo, since February. The test involves four Multiple-Input Multiple-Output (MIMO) antennas for base-station transmission and mobile-station reception in the 20MHz bandwidth, the maximum under new Super 3G standards. DoCoMo said it is continuing to test connection handover from one base station to another, and the functionality of applications in indoor and outdoor environments.
Super 3G, which features low-latency data transmission and high spectrum efficiency, is an evolution beyond the High-Speed Downlink Packet Access (HSDPA) and High-Speed Uplink Packet Access (HSUPA) protocols of W-CDMA, an original technology for 3G packet transmissions. Super 3G, also known as Long Term Evolution (LTE), is being standardized by the 3rd Generation Partnership Project (3GPP) and core specifications have been approved already.
