KDDI Deploys Nokia Solutions in Japan


Japanese telecommunication service provider, KDDI deploys technology based high-speed broadband to its subscribers in Japan. The ITU-T compliant solutions from Nokia uses vectoring technology will enable the service provider to use existing copper lines in MDU buildings to deliver 830Mbps combined uplink and downlink speeds to customers.

Japan is one of the leaders in driving the developments in FTTH (Fiber to the home) technology. Japan’s incumbent telecommunication carrier, NTT has been a front runner in Telecom domain and has extended their support to the Fiber deployments worldwide. To deliver ultra-broadband speeds, operators in Japan use thin low friction fiber optic cables where possible, but make use of existing copper cables in old MDUs.

KDDI Deploys Nokia Solutions in Japan 1With more than 70 percent of homes connected with fiber either directly at home or to the basement of the apartment, Japan stands at sixth place in the ranking done by the FTTH Council. UAE, Qatar, Singapore, South Korea, and Hong Kong are ranked above Japan in terms of the percentage of home connected with FTTH/FTTB technology.

Japanese Service providers use new technologies like for a large number of MDU locations where copper is already installed. Main providers in Japan are NTT, KDDI, and Softbank. Japanese Telecom regulatory body has approved Rakuten to enter the telecom market, which is planned to happen this year.

Developed by Nokia Bell Labs, uses vectoring technology to effectively reduce cross-talk interference that typically impacts data speeds over copper networks. Providing support for Japan’s VDSL2 specifications, Nokia’s solution will minimize the impact to existing VDSL systems and enable operators to quickly upgrade their high-speed internet service to gigabit-class through a simple CPE (customer premises equipment) replacement. From now on the subscribers in Japan can enjoy Nokia gigabit solution in the live commercial network provided by KDDI’s ‘au Hikari Type G’ broadband services.

From the official Press release:

  • Nokia is the only vendor who can provide interoperability between and the Japan-specific VDSL technology.
  • Nokia’s solution meets all Japanese specifications and environmental conditions
  • There are more than 30M households using FTTH/FTTB services in Japan, of which approximately 9 million are MDU residents.
  • There are approximately 5-6 million VDLS2 users in Japan that will need to migrate to due to support demand for higher broadband speeds.
  • Migration from a Japan unique VDSL system to a globally standardized Nokia system can provide Japanese operators a future-proof path to deliver even higher speeds such as 2Gbps with 212MHz in the future.

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