Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-01-25
2010-12-28
Gelin, Jean A (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C370S328000, C370S329000, C370S338000
Reexamination Certificate
active
07860500
ABSTRACT:
During operation of a secondary communication system, nodes having different channel monitoring capabilities or requirements will cooperatively monitor possible frequencies for transmissions, each node using only a subset of all possible modulation sensing schemes. All nodes will share channel occupancy information to other nodes within the communication system. For example, a first group of nodes may monitor possible frequencies for television transmissions, while a second group of nodes may monitor the possible frequencies for APCO 25 transmissions. A group of nodes may also cooperatively monitor possible frequencies for more than one type of modulation transmission. Channel information will be shared among the nodes.
REFERENCES:
patent: 4573206 (1986-02-01), Grauel et al.
patent: 5577087 (1996-11-01), Furuya
patent: 5781542 (1998-07-01), Tanaka et al.
patent: 5806002 (1998-09-01), Wiatrowski et al.
patent: 5915219 (1999-06-01), Poyhonen
patent: 6011960 (2000-01-01), Yamada et al.
patent: 6442129 (2002-08-01), Yonge et al.
patent: 6751187 (2004-06-01), Walton et al.
patent: 6909755 (2005-06-01), Erving
patent: 6990087 (2006-01-01), O'Donnell
patent: 2005/0094212 (2005-05-01), Asai et al.
patent: 2005/0143082 (2005-06-01), Yang
patent: 2005/0221896 (2005-10-01), Lum et al.
patent: 2006/0240777 (2006-10-01), Ruuska
patent: 2006/0268791 (2006-11-01), Cheng et al.
patent: 2007/0140102 (2007-06-01), Oh et al.
Blaine R. Copenheaver, “PCT/US2007/080668—PCT International Search Report and Written Opinion,” WIPO, ISA/US, Commissioner for Patents, Alexandria, VA, USA, Mar. 11, 2008, 8 pages, most relevant pp. 3, 7-8.
Simin Baharlou, “PCT/US2007/080668—PCT International Preliminary Report on Patentability,” The International Bureau of WIPO, Geneva, Switzerland, May 7, 2009, 7 pages.
Danijela Cabric, et al., “A Cognitive Radio Approach For Usage Of Virtual Unlicensed Spectrum,” 2004, White Paper, Wireless Research Center, University of California at Berkeley, USA and Telecommunication Networks Group, Technical University of Berlin, Germany, Available online http://www.bwrc.eecs.berkeley.edu/MCMA—4 pages.
Danijela Cabric, et al., “Implementation Issues In Spectrum Sensing For Cognitive Radios,” 38th Annual Asilomar Conference on Signals, Systems and Computers, Nov. 2004, Wireless Research Center, University of California at Berkeley, USA—5 pages.
LAN/MAN Standards Committee, “6.19 Multicast Support, IEEE P802.22/D0.1—Draft Standard for Wireless Regional Area Networks Part 22: Cognitive Wireless RAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Policies and Procedures for Operation in the TV Bands” IEEE 2006 pp. 149-150.
LAN/MAN Standards Committee, “6.21.6 Clustering, IEEE P802.22/D0.1—Draft Standard for Wireless Regional Area Networks Part 22: Cognitive Wireless RAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Policies and Procedures for Operation in the TV Bands” IEEE 2006 p. 202-204.
Buchwald Gregory J.
Ecklund Lawrence M.
Gillig Steven F.
Mansfield Terry K.
Gelin Jean A
Motorola Inc.
LandOfFree
Method and apparatus for determining appropriate channels... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for determining appropriate channels..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining appropriate channels... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4183357