Japan's NTT is conducting one of the most ambitious FTTH deployment projects in the world. The NTT project aims to deploy almost 30 million FTTH lines by 2010. At the end of 2006, six million lines were already deployed, with four more million lines expected in 2007. The total cost of this programme is expected to reach USD 47 billion.
Services provided to end users are based around B-FLET (Flat Rate Internet Access Service). They include very highspeed Internet access (100 Mbit/s symmetrical) with content and podcasting services, high-quality multiline VoIP services and the possibility of high-definition broadcast TV from 2008.
Due to regulatory constraints, however, NTT is prevented from offering broadcast TV and has to partner with an ISP or a satellite TV provider to offer such services. As NTT is a quasi-monopoly in the fixed-access market in Japan, its main drivers come both from government decisions, such as the e-Japan project and the subsequent u-Japan initiative, and the desire to offer new broadband and FMC services.
NTT’s migration to NGN started in 2006 with the deployment of IP core nodes together with optical wavelength transmission equipment. The second phase, planned for the second half of 2007, will involve the deployment of IP edge nodes, as well as IMS service control functions and the launch of next-generation services such as broadband Internet access, IP telephony, multicast transmission for video distribution and bidirectional video and data communication. NTT’s strategy appears to be based on overlay IMS. The PSTN, however, will be retained for narrowband access for some time.
The third phase is expected to begin around mid- 2009 with the seamless integration of edge nodes of NTT DoCoMo’s mobile “Super 3G” service. Super 3G involves the enhancement of HSDPA from 14 Mbit/s to 100 Mbit/s downlink and 50 Mbit/s uplink, in accordance with 3GPP’s 4G Long- Term Evolution (LTE).
Source: ITU
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