Docomo wants 60% ISDB-tmm coverage at launch

Dylan Bushell-Embling
22 Feb 2011
00:00

NTT DoCoMo plans to cover 60% of households with its ISDB-tmm mobile multimedia broadcasting network when the service goes live in April next year.

The company has also it plans to increase this coverage to 90% by March 2016, and have 50 million compatible handsets in use within the first five years.

Already, some 32.9 million of its customers are using handsets compatible with One-Seg, the technology's predecessor, and 1.5 million subscribe to its mobile-optimized content service BeeTV.

Japanese regulators in September last year selected ISDB-Tmm over the competing MediaFLO-based solution being pushed by rival KDDI as the official standard for next-generation mobile TV.

DoCoMo claims the technology is advantageous because it allows terrestrial broadcasters to share receivers with ISDB-T systems which broadcast primarily to televisions.

To date 12 nations including Japan, the Philippines and Thailand (which is assessing the standard) have adopted this broadcasting standard.

ISDB-Tmm also supports file-casting, allowing users to download content at their convenience or in non-peak hours.

Unlike the One-Seg standard, which only supports 320 x 240 resolution, ISDB-Tmm can broadcast at 720 x 480.

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