NTIA
Report Lays Groundwork for Responsible Deployment Of Broadband Over
Power Lines (BPL)
Answers President’s Call for New Broadband
Technology Standards
A report issued today by the Commerce
Department's National Telecommunications and Information Administration
(NTIA) examines the potential interference to federal radio systems
that could result from the deployment of broadband over power lines
(BPL). The report concludes that “rigorous technical solutions”
would protect critical federal systems and enable BPL to realize
its promise as the “third broadband wire into the home.”
“Yesterday, President Bush called
for ‘technical standards to make possible new broadband technologies,
such as the use of high-speed communication directly over power
lines’,” said Acting NTIA Administrator Michael D. Gallagher.
“Today, NTIA is meeting that challenge by providing the technical
foundation for the responsible deployment of broadband over power
lines. BPL has the potential to turn every electrical outlet into
a broadband pipeline. Establishing responsible ground rules that
address radio frequency interference concerns is a critical component
of meeting that promise.”
There are 59,000 federal radio frequency
assignments in the affected bands of spectrum between 1.7 and 80
MHz. These frequencies provide multiple services including: fixed,
mobile, radio astronomy, radar, and broadcasting. The NTIA report,
which analyzed 10 million measurements of BPL systems, suggests
mitigation techniques to protect these critical government radio
systems. Among the solutions proposed in the report are: a notch
solution for the most sensitive and severely impacted systems; local
registration of BPL frequency use; intelligent power management;
and the use of a Web-based interface for potentially impacted parties.
NTIA will complete a Phase 2 study
later this year that will assess the potential interference risks
due to aggregation and ionospheric propagation of interfering signals
from BPL systems; refine and apply BPL deployment models; and evaluate
the effectiveness of proposed Part 15 measurement techniques.
NTIA filed its report with the FCC
in connection with a proceeding to amend the FCC’s Part 15
Rules to allow broadband to be deployed over power lines. The report
is available on the NTIA Web site at www.ntia.doc.gov.