The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2010
Filed:
Sep. 24, 2004
James E. Petranovich, San Diego, CA (US);
Steven H. Gardner, San Diego, CA (US);
Neal Riedel, Carlsbad, CA (US);
Deepak Ayyagari, Vancouver, WA (US);
Daniel Park, Beaverton, OR (US);
Garold B Gaskill, Camas, WA (US);
James E. Petranovich, San Diego, CA (US);
Steven H. Gardner, San Diego, CA (US);
Neal Riedel, Carlsbad, CA (US);
Deepak Ayyagari, Vancouver, WA (US);
Daniel Park, Beaverton, OR (US);
Garold B Gaskill, Camas, WA (US);
Coppergate Communications Ltd., Tel Aviv, IL;
Abstract
Provided is a frame structure for filtered OFDM signaling, wherein once every frame a central controller passes redundant broadcast data for a short time (e.g. 16 symbol times) over all frequencies in use. This broadcast, called a beacon, may carry control information, frame structure information, and other data. The rest of the frame is divided into other assignments, including broadband redundantly coded channels for broadcast, ALOHA contention access, or point-to-point transmissions, and including traffic channels that may use only some of the assigned frequencies intended primarily for point-to-point access. This allows a mix of TDMA and FDMA point-to-point and broadband access. This system may be controlled by a central coordinator, which issues reservations. This system allows devices on a frequency-selective channel to communicate with scheduled operations.