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Friday, 29 August 2008

FTTC and first mile theory

Ofcom have published some research by Sagentia of an assessment of the theoretical limits of copper in the first mile.

Ofcom state in the report, "We found that if the DSL transmission system is hosted in the exchange, households within 2km of the exchange (approximately 18% of the total number of households) could, in theory, receive data rates above 50Mbit/s. If the DSL transmission system is moved closer to the customer premises and into the street cabinet, then almost 100% of households are within 2km of the street cabinet and could, theoretically, expect a data rate of 50Mbit/s."

Now, much of this is substantially theoretical, and not necessarily technically or economically feasible, or practical. And it raises the questions about who is planning to FTTC? And what regulatory environment would then be required for competition in the first mile, sub-loop unbundling etc?

As an aside, the idea of "worst is first" to work on eliminating the digital divide (particularly in rural areas) should not just be the preference of the regulator, but should also start to be enforced through regulation asap, as per Ashley Highfield and others' comments at the BSG event.

1 comment:

Cybersavvy UK said...

I'm sorry but it is difficult not to comment on the actual file name of this doc.

Us British love our tea normally, just not on the end of that final word!!!