WInnForum Urges Changes for More Dynamic Spectrum Sharing
The Wireless Innovation Forum released last week “Developments Towards a More Robust and Dynamic Spectrum Sharing Network,” a member-approved document that calls for improvements in sharing systems, including in the citizens broadband radio service (CBRS) and for 6 GHz automated frequency coordination (AFC). The document was written by a working group that WInnForum launched a year ago (see 2408220049).
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The changes suggested would be “a big step toward identifying spectrum-sharing solutions of the future,” said Andrew Clegg, a researcher at Baylor University who chaired the working group. “Not only are we introducing a new framework of Highly Dynamic Spectrum Sharing, but we are also showing how and in which scenarios it can be applied."
The report calls for “reducing the time over which secondary users react to changes in incumbent use from 24 hours (AFC) and 5 minutes (CBRS) to potentially seconds.” It notes the need for improvements in propagation prediction, “such as the use of known signals for in-situ clutter loss characterization” and “the use of closed-loop interference reporting to reduce dependence on propagation models altogether while ensuring incumbent protection.”