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:
Jul. 18, 2006
Filed:
Feb. 22, 2001
Arun Ayyagari, Seattle, WA (US);
Yoram Bernet, Seattle, WA (US);
Timothy M. Moore, Bellevue, WA (US);
Arun Ayyagari, Seattle, WA (US);
Yoram Bernet, Seattle, WA (US);
Timothy M. Moore, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
The invention provides Quality of Service assurances in a manner expected in other media to communications over paths that include one or more wireless links. The invention combines a subnet bandwidth manager ('SBM') at an access point ('AP') to track allocations of wireless bandwidth. The invention further incorporates multiple priority levels for packet transmission in a two-prong stochastic scheme. The first prong reserves bandwidth at each of the intermediate nodes in a transmission path subject to a veto by any intermediate node. The second prong modulates the transmission probability of a packet based on the previous failed attempts at transmission and the priority level of the packet. The overall result of this hybrid scheme is to not shut out users with the lowest priority, e.g., “best effort” priority, while assuring adequate bandwidth to higher priority applications.