Interference suppression methods for 802.11

Details Interference suppression methods for 802.11 Interference suppression methods for 802.11

2006-05-16

2006-05-16

Patel, Ajit (Department: 2664)

Multiplex communications

Channel assignment techniques

Carrier sense multiple access

C370S432000, C370S338000, C370S349000

Reexamination Certificate

active

07046690

ABSTRACT:
An 802.11 source station transmits a message, such as a CF-End message, to reset a network allocation vector at a time other than that required for indicating the end of the contention free period. That is, the source station uses the CF-End message to spoof stations within range of the message into resetting the stations' network allocation vectors as if the contention free period were active. Thus, the spoofing source station is allowed to release the medium for general use after the medium has been reserved for a specific use, for a greater time than necessary. Accordingly, spoofed stations may, for example, 1) delay transmission until a more critical transmission has completed, 2) allow unknown or foreign protocol to have preferential use of the medium, 3) prevent interference from hidden stations, and 4) allow sharing of the medium by overlapping basic service sets. After the specific use, if the medium is still reserved, the medium may be released for general use.

REFERENCES:
patent: 4554677 (1985-11-01), Smith et al.
patent: 5663954 (1997-09-01), Hakkanen et al.
patent: 5742608 (1998-04-01), Randrianaliminana et al.
patent: 5953344 (1999-09-01), Dail et al.
patent: 6373833 (2002-04-01), Suonvieri et al.

Affiliated with

Also associated with

Rating

Interference suppression methods for 802.11 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interference suppression methods for 802.11, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interference suppression methods for 802.11 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3602335