Dynamic frequency selection scheme for IEEE 802.11 WLANs

Details Dynamic frequency selection scheme for IEEE 802.11 WLANs Dynamic frequency selection scheme for IEEE 802.11 WLANs

2007-04-17

2007-04-17

Vu, Thong (Department: 2142)

Electrical computers and digital processing systems: multicomput

Computer network managing

Computer network access regulating

C370S333000, C455S509000

Reexamination Certificate

active

09976339

ABSTRACT:
Disclosed is a method and system for dynamically selecting a communication channel between an access point (AP) and a plurality of stations (STAs) in an IEEE 802.11 wireless local area network (WLAN). The method includes the steps of: determining whether a new channel to be used by the plurality of STAs is needed; measuring the channel quality of a plurality of frequency channels by at least one of the plurality of STAs; reporting the quality of the plurality of frequency channels in terms of a received signal strength indication (RSSI), Clear Channel Assessment (CCA) busy periods and periodicity; and, selecting one of the candidate channels based on the channel quality report for use in communication between the AP and the plurality of STAs.

REFERENCES:
patent: 5335356 (1994-08-01), Andersson
patent: 5418839 (1995-05-01), Knuth et al.
patent: 5471671 (1995-11-01), Wang et al.
patent: 6023622 (1997-03-01), Plaschke et al.
patent: 5673307 (1997-09-01), Holland et al.
patent: 5778316 (1998-07-01), Persson et al.
patent: 5862451 (1999-01-01), Grau et al.
patent: 6112098 (2000-08-01), Flint et al.
patent: 6169761 (2001-01-01), Marcoccia et al.
patent: 6456848 (2002-09-01), Freeman et al.
patent: 6516189 (2003-02-01), Frangione et al.
patent: 6597680 (2003-07-01), Lindskog et al.
patent: 6694138 (2004-02-01), Kobylinski et al.
patent: 6792284 (2004-09-01), Dalsgaard et al.
patent: 6868277 (2005-03-01), Cerwall et al.
patent: 6985465 (2006-01-01), Cervello et al.
patent: 2001/0028638 (2001-10-01), Walton et al.
patent: 2001/0053139 (2001-12-01), Zimmermann et al.
Justin C.-1 Chuang, “Performance Issues and Algorithms for Dynamic Channel Assignment”, Aug. 1993, IEEE Journal of Selected Areas in Commuincations.
HIPERLAN channel assignment strategies, Jones, B.C.; Skellem, D.J.; Electronics Letters, vol. 33, Issue 13, Jun. 19, 1997 pp. 1116-1117.
Enhancing throughput over wireless LANs using . . . -Bhagwat (1996) ftp.ccs.neu.edu/pub/people/matta/Wireless/PravinInfo96.ps.
Adaptive Resource Reservation for Indoor Wireless LANs—Lu, Srikant, Bharghavan (1996) timely.crhc.uiuc.edu/Papers/globecomm96.ps.gz.
Performance Evaluation of Distributed Co-Ordination..—Khurana, Kahol.. (1999) www.cs.colostate.edu/˜gupta/mascot99.ps.gz.
S. Choi et al; “Transmitter Power Control (TPC) and Dynamic Frequency Selection (DFS) Joint Proposal for 802.11h WLAN”, IEEE 802.11-01/169, xx,xx, Mar. 12, 2001, pp. 1-16, XP002213584.
G. Cervello et al; “Dynamic Channel Sdelection (DCS) Scheme for 802.11”, IEEE 802.11-00/195, XX, XX, Jul. 12, 2000, pp. 1-7, XP002213585.

Affiliated with

Also associated with

Rating

Dynamic frequency selection scheme for IEEE 802.11 WLANs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic frequency selection scheme for IEEE 802.11 WLANs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic frequency selection scheme for IEEE 802.11 WLANs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3778854