Circuits, architectures, systems, methods, algorithms and...

Details Circuits, architectures, systems, methods, algorithms and... Circuits, architectures, systems, methods, algorithms and...

2004-07-19

2010-11-02

Patel, Ajit (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S349000, C370S445000, C370S448000, C370S447000, C370S465000

Reexamination Certificate

active

07826438

ABSTRACT:
Methods, circuits and architectures for managing channel access and/or reducing contention in network transmissions where such transmissions may not be acknowledged within a certain time period, computer programs adapted to implement such methods, and systems and networks including such circuits/architectures. When the information is not so acknowledged, the methods generally include (1) waiting for a predetermined time period before attempting to retransmit the information, and/or (2) retransmitting the information. The action taken may depend on the priority of the information. The circuit and/or architecture generally includes (a) a transmitter, (b) a priority detector, and when the information is not acknowledged within a certain time period, (c) logic for (i) retransmitting the information having a first priority and (ii) waiting before attempting to retransmit information having a second priority. The present invention has particular advantage in wireless networks and advantageously improves network transmission efficiency, reliability and/or performance.

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Javier del Prado et al. (Philips Research USA); IEEE 802.11e Performance Evaluation, doc.:IEEE 802.11-03/861r1; Nov. 2003; 45 Slides; avail. at grouper.ieee.org/groups/802/11/Documents...

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