Shared Spectrum Co. said dynamic spectrum access (DSA) should play...
Shared Spectrum Co. said dynamic spectrum access (DSA) should play a big role in the sharing of 4.9 GHz spectrum between public safety and other users. Their assertions came in comments filed on a June further notice of proposed rulemaking…
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by the FCC (http://xrl.us/bnbo8p). “SSC notes that if the decision is made by the FCC to permit sharing the 4.9 GHz band between Public Safety and others such as [critical infrastructure] users, then the DSA technology developed by SSC could play a valuable role in permitting the sharing to occur on a more confident basis than if a database alone were to be deployed,” the company said (http://xrl.us/bnv7nd). “SSC believes that a ‘TV White Spaces’ database approach to sharing is only part of the answer: DSA technology allows radios to sense available channels in real space and time environments. No matter how accurate a computer database full of licensee information may be, the real-world environment adds a level of granularity that can help radio users avoid interference. Whenever a database approach is adopted, such as the TV White Spaces proceeding, SSC believes that effective sharing should include the use of DSA technology in order to provide a higher level of confidence beyond just the database approach.” DSA could have broad use in other bands as well, the filing said: “The integration of technologies including an automated geolocation database, sensing, signal beacons (which can be used in certain bands to immediately preempt Secondary Access and/or General Authorized Access users) and the band-by-band access rules established by the NTIA and FCC, should constitute a comprehensive access system to enable and manage shared access to most Federal bands."