FCC released further notice of proposed rulemaking that aims to u...
FCC released further notice of proposed rulemaking that aims to update Part 15 rules for spread spectrum systems to usher in new technologies that haven’t met past spread spectrum definitions. Further notice said it would relax frequency hopping spread…
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spectrum rules as requested in joint petition filed by 3Com and dozen other companies. Proposal, approved unanimously at FCC meeting (CD May 11 p3) also would amend rules to accommodate new digital transmission systems with spectrum characteristics similar to spread spectrum systems, such IEEE 802.11b-based technologies, systems using HomeRF and W-OFDM system developed by Wi-LAN. Finally, proposal also would eliminate processing gain requirement for direct sequence spread spectrum systems. Further notice seeks comment on proposal to allow use of as few as 15 hops regardless of hopping channel’s bandwidth as long as output power doesn’t exceed 125 mW and device uses adaptive hopping techniques. “Commenters are encouraged to include technical analyses that support claims that this change will either improve or degrade sharing of this spectrum,” further notice said. Comment also is sought on whether use of adaptive hopping should be mandatory and how agency should determine compliance with this requirement when evaluating specific devices for equipment certification. Further notice also asked for comments to examine alternative operating parameters that could achieve same goals.