Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2004-05-03
2008-11-18
Lee, Andrew (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S459000
Reexamination Certificate
active
07453857
ABSTRACT:
An apparatus and method is provided for measuring medium activity patterns in wireless networks and deriving information about the radio environment from the measured medium activity/patterns. This invention is three-fold. First, it defines what to measure, including medium idle/busy patterns based on power detection, medium idle/busy pattern based on preamble detection, and medium idle/busy pattern based on virtual sensing. Second, it provides a mechanism for communicating the measurement request and report, as illustration for the case of IEE 802.11. And last, it defines the information that can be derived given these measurements as discovery of: non-802 devices, 802.11e systems, 802.11e contention-based medium access priorities, 802.11e controlled medium access usage, 802.11b/g existence, and hidden stations.
REFERENCES:
patent: 2002/0160769 (2002-10-01), Gray
patent: 2004/0068668 (2004-04-01), Lor et al.
patent: 2004/0156336 (2004-08-01), McFarland et al.
patent: 2004/0203727 (2004-10-01), Abiri et al.
patent: 2004/0209634 (2004-10-01), Hrastar
patent: 2005/0094620 (2005-05-01), Calcev
patent: 2005/0154933 (2005-07-01), Hsu et al.
patent: 2006/0212510 (2006-09-01), Nielsen
patent: 1 282 257 (2003-02-01), None
“RFC 2041—Mobile Network Tracing” by Brian D. Noble, Oct. 1996, pp. 1-21.
InfoTech—Wireless LAN Network Management White Paper, pp. 1-26, Apr. 2001.
“Layer 2 Analysis of WLAN Discovery Applications for Intrusion Detection”, by Joshua Wright, pp. 1-13, Nov. 8, 2002.
Mangold Stefan
Soomro Amjad
Zhong Zhun
Koninklijke Philips Electronics , N.V.
Lee Andrew
Liberchuk Larry
LandOfFree
Measuring medium activity patterns in wireless networks and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Measuring medium activity patterns in wireless networks and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring medium activity patterns in wireless networks and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4039172