Tuesday, May 26, 2009 9:29:59 AM
Foore , et al. May 26, 2009
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Random early detection over wireless links
Abstract
Random early detection (RED) controlled loss (i.e., discarding data packets) is determined as a function of change in processing gain assigned by a resource management system in a data network having a communications link between first and second network nodes. Rather than triggering RED controlled loss as a function of buffer levels, triggering is determined as a function of change in processing gain caused by, for example, a change in code rate, modulation technique, error (e.g., bit error rate or frame error rate), signal-to-noise ratio (SNR) or carrier-to-interference (C/I) level, or a number of traffic code channels or TDMA slots assigned to the nodes. In a wireless data network, this technique may be deployed in a base station or access terminal. A tight coupling between the physical layer and link layer is provided using this technique.
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Inventors: Foore; Lawrence R. (Palm Bay, FL), Johnson; Kevin P. (Palm Bay, FL)
Assignee: IPR Licensing, Inc. (Wilmington, DE)
Appl. No.: 10/302,797
Filed: November 21, 2002
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Current U.S. Class: 370/230.1 ; 370/235
Current International Class: H04L 12/26 (20060101)
Field of Search: 370/229,230.1,232-236,412,428,429,465,468
Gamco
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