Method and apparatus for reducing the likelihood of contention and resource misallocation in a packet transmission system

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United States of America Patent

PATENT NO 5493569
SERIAL NO

08394939

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A packet transmission system (100) for reducing request traffic contention and the likelihood of resource misallocation includes a communications controller (110) and a plurality of remote requesting units (112) requesting packet transmission services. In response to receipt of a request (302), the controller (110) transmits a grant (306) to a requesting unit (112) when packet transmission resources (304 & 310) are available or a request acknowledgment (306) when packet transmission resources (304 & 310) are unavailable. Each remote unit (112) comprise apparatus structure and method steps for transmitting requests (302) to the controller (110) and starting a first timer having an interval (T) determined as a function of a number (Q) of outstanding requests (302). Upon receipt of an acknowledgement (306), the remote unit (112) starts a second timer having an interval (T.sub.1) longer than the interval (T). Upon expiration of either the first timer or the second timer, the remote unit (112) will then and only then transmit a duplicate request (302). By limiting the number of duplicate requests transmitted by a remote unit (112), the present invention operates to reduce request traffic contention and the likelihood of resource misallocation.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
MOTOROLA MOBILITY LLC222 WEST MERCHANDISE MART PLAZA SUITE 1800 CHICAGO IL 60654

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Buchholz, Dale R Palatine, IL 53 2538
Doss, William K Lake In The Hills, IL 16 1005
Hamilton, Jr R Lee Palatine, IL 5 422
Robbins, Karen E Lake Zurich, IL 4 266

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